diff --git "a/knowledge_base/raw_text/iadc_glossary_extracted.txt" "b/knowledge_base/raw_text/iadc_glossary_extracted.txt" new file mode 100644--- /dev/null +++ "b/knowledge_base/raw_text/iadc_glossary_extracted.txt" @@ -0,0 +1,5408 @@ +TERM: A +URL: https://iadclexicon.org/glossary/a/page/1/ +Atmosphere, Explosive +A mixture with air, under atmospheric conditions, of flammable substances in the form of gas, vapor, mist, or dust in which, after ignition, combustion spreads throughout the unconsumed mixture. +Source: +API +Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, +Second Edition, May 2013. +Global Standards + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/10/ +Ancillary Equipment +Accessory to the umbilical system that does not form part of the main functional purpose. EXAMPLES Weak link, buoyancy attachments, I-tube or J-tube seals, VIV strakes, centralizers, anchors external clamps. +Source: +API +SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. +Global Standards + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/11/ +Accuracy +In this part of ISO 10426, calibrating an instrument refers to assuring the accuracy of the measurement. Accuracy is the degree of conformity of a measurement of a quantity to its actual or true value. Accuracy is related to precision, or reproducibility, of a measurement. Precision is the degree to which further measurements or calculations will show the same or similar results. Precision is characterized in terms of the standard deviation of the measurement. The results of calculations or a measurement can be accurate, but not precise, precise but not accurate, neither or both. A result is valid if it is both accurate and precise. +Source: +API +SPEC 10A, Specification for Cements and Materials for Well Cementing, Twenty-fourth Edition, December 2010. +Global Standards + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/12/ +Audit Report +In this regulation, “audit report” means a report made pursuant to the arrangements referred to in regulation 12(1)(b). +Source: The Offshore Installations (Safety Case) Regulations 2005, UK S.I. 2005/3117, 2005. +Regulations + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/13/ +Adjacent Estuarine Zones +This term embraces the area inland from the coast line of Texas and is comprised of the bays, inlets, and estuaries along the gulf coast. +Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. +Regulations + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/14/ +Alerting Post +"Alerting post". Any facility intended to serve as an intermediary between a person reporting an emergency and a rescue co-ordination centre or rescue sub-centre. +Source: IMO Resolution MSC.70(69), adoption of amendments to the International Convention on Maritime Search and Rescue (SAR), 1979, 18 May 1998, International Maritime Organization. +Legislation + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/15/ +Abnormally Geo-pressured Strata +"Abnormally geo-pressured strata" means subsurface zones where the pore pressure exceeds a gradient of 0.50 psi/ft. +Source: Alaska Oil and Gas Conservation Commission, Definitions, Alaska Admin. Code tit. 20, § 25.990, December 7, 2012. +Regulations + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/16/ +Accident +“Accident” means a fortuitous event that results in the death of or injury to any person involved in a diving operation (accident). +Source: Canada Oil and Gas Diving Regulations, SOR/88-600, February 2013. +Regulations +Source: Nova Scotia Offshore Area Petroleum Diving Regulations, SOR/95-189, Canada, current to May 31, 2012. +Regulations +Accident +Accident includes the contraction of a disease. +Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. +Legislation +Accident +Accident means an event that. + +(a) causes any person to be harmed; or +(b) in different circumstances, might have caused any person to be harmed. +Source: Health and Safety in Employment Act 1992, Public Act 1992 No 96, New Zealand, as of 1 July 2011. +Legislation +Accident +“Accident” means an incident that results in a hazard causing harm to a worker. +Source:  Nova Scotia Offshore Petroleum Occupational Health & Safety Requirements, Canada-Nova Scotia Offshore Petroleum Board, Canada, December 2000. +Regulations +Accident +Event or chain of events which cause, or could have caused, injury, illness and/or damage (loss) to assets, the environment or third parties. +Source: ISO 17776:2000, Petroleum and natural gas industries – Offshore production installations – Guidelines on tools and techniques for hazard identification and risk assessment. +GlobalStandards +Accident +See +Incident +. +As low as reasonably practicable (ALARP) +To reduce a risk to a level which is ‘as low as reasonably practicable’ involves balancing reduction in risk against the time, trouble, difficulty and cost of achieving it. This level represents the point, objectively assessed, at which the time, trouble, difficulty and cost of further reduction measures become unreasonably disproportionate to the additional risk reduction obtained. +Source: OGP Report No. 6.36/210, Guidelines for the Development and Application of Health, Safety and Environmental Management Systems, International Association of Oil & Gas Producers, July 1994. +Global Standards +Accident +An event that causes any person to be harmed, or in different circumstances might have caused any person to be harmed. +Source: Approved Code of Practice for Managing Hazards to Prevent Major Industrial Accidents, Health and Safety in Employment Act 1992, Department of Labour, New Zealand, July 1994. +Regulatory Guidance + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/17/ +Attachment Weld +Fillet or full penetration weld used for attachment of components to pipe or coupling. +Source: +API +Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. +Global Standards +Source: +API +RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). +Global Standards + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/18/ +Acceptance Criteria +Defined limits placed on characteristics of materials, products, equipment, processes, or services. +Source: +API +Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. +Global Standards +Acceptance Criteria +Defined limits placed on characteristics of materials, equipment, processes, or service. +Source: +API +STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. +Global Standards +Acceptance Criteria +Specified limits of acceptability applied to process or product characteristics. +Source: +API +Technical Report 17TR7, Verification and Validation of Subsea Connectors, First Edition, April 2017. +Global Standards +Source: ISO 16530-1:2017, Petroleum and natural gas industries - Well integrity – Part 1: Life cycle governance, First Edition, March 2017. +Global Standards +Source: +API +Spec Q2, Specification for Quality Management System Requirements for Service,  Supply Organizations for the Petroleum and Natural Gas Industries, Upstream Segment, First Edition, December 2011. +Global Standards +Source: +API +SPEC Q1, Specification for Quality Management System Requirements for Manufacturing Organizations for the Petroleum and Natural Gas Industry, Ninth Edition, June 2013 (Errata 2, March 2014). +Global Standards +Acceptance Criteria +Acceptance criteria (definition at Rule 2(a)) means the upper limit of acceptable risk related to major accidents and risk related to the environment. Major accident means an accident involving several serious personal injuries or deaths or an accident that jeopardises the integrity of the facility. Environmental risk means the risk of pollution. +Source: Guidance Notes on Petroleum and Natural Gas (Safety in Offshore Operations) Rules, 2008, Oil Industry Safety Directorate (India), 2012. +Regulatory Guidance +Acceptance Criteria +Defined limits placed on characteristics of materials, products or services . +Source: +API +SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). +Global Standards +Source: +API +SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). +Global Standards +Source: +API +SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). +Global Standards +Acceptance Criteria +Specified limits of acceptability applied to process, service, or product characteristics. +Source: +API +Spec Q2, Specification for Quality Management System Requirements for Service,  Supply Organizations for the Petroleum and Natural Gas Industries, Upstream Segment, First Edition, December 2011. +Global Standards +Acceptance Criteria +Specified limits of acceptability applied to process or product characteristics. +Source:ISO/TS 29001:2010(E). +Global Standards +Acceptance Criteria +The limits for the risk to be acceptable (Arbo Regulation Article 3.2). +Source: NOGEPA Industrial Guideline No. 7, Rescue at Sea, Netherlands, Version 0, January 2008. +Global Standards +Acceptance Criteria +“Acceptance criteria” means criteria used to express a risk level that is considered acceptable for the activity in question, limited to the high level expressions of risk. +Source: Petroleum and Natural Gas (Safety in Offshore Operations) Rules, 2008, India, 18th June 2008. +Regulations +Acceptance Criteria +Defined limits placed on characteristics of materials, products, or services. +Source: +API +SPEC 16RCD, Specification for Drill Through Equipment—Rotating Control Devices, Upstream Segment, First Edition, February 2005. +Global Standards + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/19/ +Active Maintenance Time +That part of the maintenance time during which a maintenance action is performed on an item, either automatically or manually, excluding logistic delays. NOTE 1 A maintenance action can be carried out while the item is performing a required function. NOTE 2 For a more detailed description and interpretation of maintenance times, see Figure 4 and Annex C. +Source: +API +STD 2000, Venting Atmospheric and Low-pressure Storage Tanks, Sixth Edition, November 2009. +Global S +tandards + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/2/ +Autoridad de Fiscalización +De conformidad con el articulo 13 de Ia Ley 1530 de 2012, la autoridad de fiscalización es el Ministerio de Minas y Energia o la entidad en quien este la delegue. +Source: Resolución Número 40687 de 18 Jul 2017 Por la cual se establecen los criterios técnicos para proyectos de perforación exploratoria de hidrocarburos costa afuera en Colombia. Columbia Ministerio de Minas y Energia, +Regulations + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/20/ +Actively engaged as an inspector +"Actively engaged as an inspector" shall be defined by one of the following provisions: +A minimum of 20% of time spent performing inspection activities or supervision inspection activities as described in the API 510 inspection code over the most recent three-year certification period. +Performance of inspection activities or supervision of inspection activities on 75 pressure vessels as described in API 510 over the most recent three-year certification period. +Note: Inspection activities common to other API inspection documents (NDE, record-keeping, review of welding documents, etc.) may be considered here. +Source: +API +510, Pressure Vessel Inspection Code: In-service Inspection, Rating, Repair, and Alteration, Tenth Edition, May 2014, with Addendum May 2017. +Global Standards +Source: +API +510, Pressure Vessel Inspection Code: In-Service Inspection, Rating, Repair, and Alteration Downstream Segment, Ninth Edition, June 2006. +Global Standards + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/21/ +Accommodation space +Accommodation space includes, sleeping, mess, hospital, recreational, toilet, washing and shower spaces, and corridors. +Source: Mobile Offshore Drilling Units, 46 CFR 107-109 (2013). +Regulations +Accommodation space +Accommodation spaces are those used for public spaces, corridors, lavatories, cabins, offices, hospitals, cinemas, games and hobbies rooms, pantries containing no cooking appliances and similar spaces. ‘Public spaces’ are those portions of the accommodation which are used for halls, dining rooms, lounges and similar permanently enclosed spaces. +Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 7, Safety Systems, Hazardous Areas and Fire, June 2013, Lloyd’s Register, +Global Standards + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/3/ +Analytical Model +Algorithm or calculation combining one or more +base measures +and/or +derived measures +with associated decision criteria. +Source: ISO/IEC 27000:2014, Information technology — Security techniques — Information security management systems — Overview and vocabulary, Third Edition, January 2014. +Global Standards + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/4/ +Access and Identity Management +The process of granting or denying specific requests for or attempts to: 1) obtain and use information and related information processing services; and 2) enter specific physical facilities. + +Adapted from: CNSSI 4009 +Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies ( +https://niccs.us-cert.gov/glossary +) as of 11 November 2015, +Global Standards + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/5/ +Adiabatic Efficiency +Ratio of theoretical temperature increase to actual temperature increase; a measure of the work done by a compressor that is not lost as heat. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/6/ +Average Failure Rate +3.1.19 +λ (t +1 +t +2 +), λ (T) + +average value of the time-dependent failure rate over a given time interval +Source: ISO/TR 12489:2013(E) Reliability modelling and calculation of safety systems. +Global Standards + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/7/ +Assigned Protection Factor +Workplace level of respiratory protection that a respirator or class of respirators is expected to provide to a population of properly fitted and trained users. + +NOTE For example, an APF of 10 for a respirator means that a user could expect to inhale no more than one tenth of the airborne contaminant present. +Source: +API +RP 98, Personal Protective Equipment Selection for Oil Spill Responders, First Edition, August 2013. +Global Standards + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/8/ +Aviation Weather Reporting +Aviation weather reporting procedure. +Source:  Offshore Physical Environmental Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, September 2008. +Regulatory Guidance + +--- + +TERM: A +URL: https://iadclexicon.org/glossary/a/page/9/ +After-Flame Time +After-flame time +is the time during which the material continues to flame after the ignition source has been removed or extinguished. +Source: IMO Resolution MSC.307(88), International Code for Application of Fire Test Procedures, 2010 (2010 FTP Code), 3 December 2010, International Maritime Organization. +Regulatory Guidance + +--- + +TERM: B +URL: https://iadclexicon.org/glossary/b/page/1/ +Bus, Cable +An approved assembly of insulated conductors with fittings and conductor terminations in a totally enclosed protective metal housing, see +NEC +Article 370. +Source: +API +Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, +Second Edition, May 2013. +Global Standards + +--- + +TERM: B +URL: https://iadclexicon.org/glossary/b/page/10/ +BOPE +An abbreviation for blowout preventer equipment. +Source: +API +RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. +Global Standards +BOPE +"BOPE" means blowout prevention equipment. +Source: Alaska Oil and Gas Conservation Commission, Definitions, Alaska Admin. Code tit. 20, § 25.990, December 7, 2012. +Regulations + +--- + +TERM: B +URL: https://iadclexicon.org/glossary/b/page/11/ +BOP control system +BOP functions are controlled using several methods such as direct, piloted, electro hydraulic, and MUX. One method employs piloted hydraulic controls. In this case, a hydraulic signal is transmitted from the surface control station to the subsea BOP. A hydraulic pilot valve receives the signal triggering the actuation of the subsea function. Because the hydraulic signal travels slowly, this type of control is best suited for use in shallower water depths. Another type of control uses electro-hydraulic technology. Systems in deeper water depths use multiplexed electrical or fiber optic signals sent from the surface to the pods to actuate the function on the subsea BOP. +Source: API RP 96, Deepwater Well Design and Construction, First Edition, March 2013. +Global Standards + +--- + +TERM: B +URL: https://iadclexicon.org/glossary/b/page/12/ +Blow-Off +Loss of a stable flame where the flame is lifted above the burner, occurring if the fuel velocity exceeds the flame velocity. +Source: +API +STD 521, Pressure-relieving and Depressuring Systems, Fifth Edition, January 2007 (Addendum May 2008). +Global Standards + +--- + +TERM: B +URL: https://iadclexicon.org/glossary/b/page/13/ +BSI +British Standards Institute. +Source: +API +RP 17L2, Recommended Practice for Flexible Pipe Ancillary Equipment, First Edition, March 2013. +Global Standards +Source: Prevention of Fire and Explosion, and Emergency Response on Offshore Installations, Offshore Installations (Prevention of Fire and Explosion, and Emergency Response) Regulations 1995, Approved Code of Practice and guidance (UK HSE L65), Second Edition, 1997. +Regulatory Guidance + +--- + +TERM: B +URL: https://iadclexicon.org/glossary/b/page/14/ +Breaking out pipe +Operation of unscrewing a pipe section. +Source: +API +RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). +Global Standards + +--- + +TERM: B +URL: https://iadclexicon.org/glossary/b/page/2/ +Bill of Materials +Controlled list of components of an assembly. +Source: +API +SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. +Global Standards + +--- + +TERM: B +URL: https://iadclexicon.org/glossary/b/page/3/ +Butterfly Valve +relatively flat, rotating disc mounted on a bearing that allows it to rotate its axis. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards + +--- + +TERM: B +URL: https://iadclexicon.org/glossary/b/page/4/ +Blast Relief Panel +Parts of a module wall, ceiling or roof, which are designed to increase the area of venting in an explosion by being opened or removed by the force of the explosion. +Source: +API +RP 2FB, Recommended Practice for the Design of Offshore Facilities Against Fire and Blast Loading, First Edition, April 2006. +Global Standards + +--- + +TERM: B +URL: https://iadclexicon.org/glossary/b/page/5/ +BeSD +Begeleidend stralingsdeskundige. Radiation Protection Supervisor. +Source: NOGEPA Industrial Guideline No. 16, Working with Naturally Occurring Radioactive Materials (NORM), Netherlands, Version 1, January 2009. +Global Standards + +--- + +TERM: B +URL: https://iadclexicon.org/glossary/b/page/6/ +BOP +Blow Out Preventer. +Source: Norwegian Oil and Gas Association, Guideline No. 135, Recommended Guidelines for Classification and categorization of well control incidents and well integrity incidents, Rev. 4, 27 June 2017, +National or Regional Standards +BOP +Equipment installed at the wellhead to contain wellbore pressure either in the annular space between the casing and the tubulars or in an open hole during drilling, completion, testing, or workover operations. +Source: +API +STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. +Global Standards +BOP +Equipment installed on the wellhead or wellhead assemblies to contain wellbore fluids either in the annular space between the casing and the tubulars or in an open hole during well drilling, completion, and testing operations. +NOTE: BOPs are not gate valves, workover/intervention control packages, subsea shut-in devices, well control components (per API 16ST), intervention control packages, diverters, rotating heads, rotating circulating devices, capping stacks, snubbing or stripping packages, or nonsealing rams +Source: +API +Specification 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, Second Edition, April 2017. +Global Standards +BOP +Equipment installed at the wellhead or wellhead assemblies to contain wellbore fluids, either in the annular space between the casing and the tubulars or in an open hole during drilling, completion, testing, or workover operations. +Source: +API +Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. +Global Standards +BOP +Blow-out preventer. +Source: ISO 16530-1:2017, Petroleum and natural gas industries - Well integrity – Part 1: Life cycle governance, First Edition, March 2017. +Global Standards +BOP +Large, specialized valve used to seal, control, and monitor an oil and gas well. +Source: +API +Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. +Global Standards +BOP +An abbreviation for blowout preventer. +Source: +API +RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. +Global Standards +BOP +"BOP" means blowout preventer, which is a casinghead assembly equipped with special gates or rams or other pack-offs that can be closed around the drill pipe, tubing, casing, or tools, and that completely close the top of the casing to control well pressure. +Source: Alaska Oil and Gas Conservation Commission, Definitions, Alaska Admin. Code tit. 20, § 25.990, December 7, 2012. +Regulation +BOP +Device attached immediately above the casing, which can be closed to shut in the well. +Source: ISO 13624-1:2009, Petroleum and natural gas industries – Drilling and production equipment – Part 1:Design and operation of marine drilling riser equipment. Global Standards +BOP +Blowout preventer. +Source: +API +STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. +Global Standards +Source: +API +Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. +Global Standards +Source: +API +SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. +Global Standards +Source: +API +Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. +Global Standards +Source: +API +RP 500, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and Division 2, Third Edition, December 2012, +Global Standards +Source: +API +RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). +Global Standards +Source: +API +RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. +Global Standards +Source: +API +RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. +Global Standards +Source: +API +RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). +Global Standards +Source: +API +SPEC 7K, Drilling and Well Servicing Equipment Upstream Segment, Fifth Edition, June 2010 (August 2010). +Global Standards +Source: +API +SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). +Global Standards +Source: +API +SPEC 17D, Design and Operation of Subsea Production Systems—Subsea Wellhead and Tree Equipment, Upstream Segment, Second Edition May 2011 (Errata September 2011). +Global Standards +Source: +API +STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. +Global Standards +Source: +API +Bulletin 97, Well Construction Interface Document Guidelines, First Edition, December 2013. +Global Standards +Source: +API +SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. +Global Standards +Source: International Association of Drilling Contractors, Appendix 2 to Health, Safety and Environment Case Guidelines for Offshore Drilling Contractors, Issue 3.3.2, February 2010. IADC Guidelines +Source: ISO 20815:2008, Petroleum, petrochemical and natural gas industries – Production assurance and reliability management. +Global Standards +Source: ISO 13624-1:2009, Petroleum and natural gas industries – Drilling and production equipment – Part 1:Design and operation of marine drilling riser equipment. +Global Standards +Source: +ISO 13702:2015, Petroleum and natural gas industries — Control and mitigation of fires and explosions on offshore production installations — Requirements and guidelines, Second Edition, August 2015 +. +Global Standards +Source: NOGEPA Industrial Guideline No. 44, Standards and Acceptance Guidelines, Enhance QA/QC for Critical Well Components, Netherlands, Version 0, July 2011. Global Standards +Source: NOGEPA Industrial Guideline No. 41, Well Construction Process Checklist, Drilling Best Practices, Netherlands, Version 0, December 2011. Global Standards +Source: NOGEPA Industrial Guideline No. 43, Surface BOP Review, Best Practices Checklist, Netherlands, Version 0, December 2011. Global Standards +Source: NORSOK D-010, Well integrity in drilling and well operations, Rev. 3, August 2004. Global Standards +Source: NORSOK D-002, Well intervention equipment, Rev. 2, June 2013. Global Standards +Source: NORSOK D-001, Drilling facilities, Rev. 3, December 2012. Global Standards +Source: Oil & Gas UK, Guidelines on subsea BOP systems, Issue 1, July 2012, +Global Standards +Source:  OGP Report No. 476, Recommendations for enhancements to well control training, examination and certification, International Association of Oil & Gas Producers, October 2012. +Global Standards +Source: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. +Global Standards + +--- + +TERM: B +URL: https://iadclexicon.org/glossary/b/page/7/ +Blind Flange +Flange with no centre bore, used to close off completely a flanged end or outlet connection. +Source: +API +SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). +Global Standards + +--- + +TERM: B +URL: https://iadclexicon.org/glossary/b/page/8/ +Brush And Stone Bridge +“Brush and stone bridge” means an obstruction, made of timber and stone, and placed in a well bore to form an effective base for plugging material. +Source: Division of Mineral Resources Management - Oil and Gas, Ohio Administrative Code, Chapter 1501:9, January 2012. +Regulations + +--- + +TERM: B +URL: https://iadclexicon.org/glossary/b/page/9/ + +Blind + + + + +A device such as metal plates inserted in flanged joints, blind flanges, and caps or plugs installed on the ends of pipe lines, used to prevent liquids, gases, or vapors from passing through a pipe line or nozzle. Valves are not blinds +. +Source: Petroleum Safety Orders--Drilling and Production, Definitions, California Code of Regulations, 8 CCR § 6505, December 2012. +Regulations + + + + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/1/ +Conditions, Normal +Equipment is generally considered to be under normal conditions when it conforms electrically and mechanically with its design specifications and is used within the limits specified by the manufacturer. +Source: +API +Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, +Second Edition, May 2013. +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/10/ +Code of Conduct +document specifying the ethical or personal behaviour required by a certification scheme + +Note 1 to entry: Adapted from ISO/IEC 17024:2012, 8.2, Note 2. +Source: ISO/IEC TS 17027:2014, Conformity assessment – Vocabulary related to competence of persons used for certification of persons, +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/11/ +Common Carrier +“Common carrier” means such pipelines for transportation of petroleum, petroleum products and natural gas by more than one entity as the Board may declare or authorize from time to time on a non- discriminatory open access basis under sub- section (3) of section 20, but does not include pipelines laid to supply- +petroleum products or natural gas to a specific consumer; or +crude oil; Explanation.- For the purposes of this clause, a contract carrier shall be treated as a common carrier, if- +such contract carrier has surplus capacity over and above the firm contracts entered into; or +the firm contract period has expired. +Source: The Petroleum and Natural Gas Regulatory Board Act, 2006, No. 19 of 2006, India, amended as of May 2013. +Legislation + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/12/ +Checklist +Process or system checklists can be used to evaluate equipment, materials or procedures during any of the significant phases of an installation’s life, i.e. design, construction, start-up, operation and shutdown. Checklists consist of key words or matters considered significant for the meaningful evaluation of procedures, equipment or materials used at the installation. Checklists should be subjected to regular auditing and updating and are generally limited to the experience of the checklist author. +Source: Approved Code of Practice for Managing Hazards to Prevent Major Industrial Accidents, Health and Safety in Employment Act 1992, Department of Labour, New Zealand, July 1994. +Regulatory Guidance + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/13/ +CCG +Canadian Coast Guard. +Source:  Offshore Physical Environmental Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, September 2008. +Regulatory Guidance + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/14/ +Comprehensive Study +“Comprehensive study” means an environmental assessment that is conducted pursuant to sections 21 and 21.1, and that includes a consideration of the factors required to be considered pursuant to subsections 16(1) and (2); étude approfondie. +Source: Canadian Environmental Assessment Act, 1992, c. 37, Canada, as consolidated November 2003. +Legislation + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/15/ +Catalyst Block +"Catalyst block" means a block of certain dimension through which exhaust gas passes and which contains catalyst composition on its inside surface to reduce NOx from exhaust gas. +Source: Resolution MEPC.198(62), 2011 Guidelines addressing additional aspects to the NOx Technical Code 2008 with regard to particular requirements related to marine diesel engines fitted with Selective Catalytic Reduction (SCR) Systems, 15 July 2011, International Maritime Organization. +Regulatory Guidance + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/16/ +CIT +Chemical injection – tree. +Source: +API +SPEC 17D, Design and Operation of Subsea Production Systems—Subsea Wellhead and Tree Equipment, Upstream Segment, Second Edition May 2011 (Errata September 2011). +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/17/ +Control Hose Bundle +A group of pilot and/or supply and/or control hoses assembled into a bundle covered with an outer protective sheath. +Source: +API +SPEC 16D, Specification for Control Systems for Drilling Well Control Equipment and Control Systems for Diverter Equipment, Upstream Segment, Second Edition, July 2004. +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/18/ +Closure Bolting +Bolting used to assemble or join wellbore pressure-containing parts, including end and outlet connections. +NOTE: Examples of closure bolting include flange bolting, bonnet bolting, end connection bolting on BOPs, ram door bolting, and hub clamp bolting. +Source: +API +Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. +Global Standards +Closure Bolting +Bolting used to assemble or join wellbore pressure-containing parts including end and outlet connections. +NOTE: Examples: flange bolting, bonnet bolting, bolting on end connection on BOPs, ram door bolting, hub clamp bolting. +Source: +API +STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. +Global Standards +Closure Bolting +Threaded fastener used to assemble well-bore pressure-containing parts or join end or outlet connections. +EXAMPLES Studs, nuts, bolts and capscrews. +Source: +API +SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/19/ +Chemical Cutter +A downhole tool used to sever tubular goods in pipe recovery operations utilizing the action of bromine trifluoride to sever ferrous metals. +Source: +API +RP 67, Recommended Practice for Oilfield Explosives Safety, Upstream Segment, Second Edition, May 2007. +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/2/ +Carbon Fibre +Fibre produced by the pyrolysis of organic precursor fibres, such as rayon, polyacrylonitrile, in an inert environment. +Source: ISO 14692-1:2017, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1: Vocabulary, symbols, applications and materials, Second Edition, August 2017. +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/20/ +Cavern +The storage space created in a salt formation by solution mining. +Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. +Regulations + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/21/ +Cage +“Cage” means a wire, wood, metal or similar material surrounding a wellhead. +Source: Division of Mineral Resources Management - Oil and Gas, Ohio Administrative Code, Chapter 1501:9, January 2012. +Regulations + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/22/ +Commercial Facility +Commercial Facility―a legally permitted E and P Waste storage, treatment and/or disposal facility which receives, treats, reclaims, stores, and/or disposes of E and P Waste for a fee or other consideration. For purposes of this definition, Department of Environmental Quality (DEQ) permitted facilities, as defined by LAC 33:V and VII, which are authorized to receive E and P Waste, are not covered by this definition. However, such facilities must comply with the reporting requirements of §545.K herein if E and P Waste is accepted. +Source: Natural Resources, Office of Conservation – General Operations, Louisiana Administrative Code, Title 43, Part XIX, March 2013. +Regulations + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/23/ +Centralized E&P Waste Management Facility +CENTRALIZED E&P WASTE MANAGEMENT FACILITY shall mean a facility, other than a commercial disposal facility regulated by the Colorado Department of Public Health and Environment, that (1) is either used exclusively by one owner or operator or used by more than one operator under an operating agreement; and (2) is operated for a period greater than three (3) years; and (3) receives for collection, treatment, temporary storage, and/or disposal produced water, drilling fluids, completion fluids, and any other exempt E&P wastes that are generated from two or more production units or areas or from a set of commonly owned or operated leases. This definition includes oil-field naturally occurring radioactive materials (NORM) related storage, decontamination, treatment, or disposal. This definition excludes a facility that is permitted in accordance with Rule 903 pursuant to Rule 902.e. +Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. +Regulations + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/24/ +Communication and consultation +Continual and iterative processes that an organization conducts to provide, share or obtain information, and to engage in dialogue with stakeholders (3.2.1.1) regarding the management of risk (1.1). NOTE 1 The information can relate to the existence, nature, form, likelihood (3.6.1.1), significance, evaluation, acceptability and treatment of the management of risk. NOTE 2 Consultation is a two-way process of informed communication between an organization and its stakeholders on an issue prior to making a decision or determining a direction on that issue. Consultation is: a process which impacts on a decision through influence rather than power; and an input to decision making, not joint decision making. +Source: ISO Guide 73:2009(E/F), Risk Management – Vocabulary, First Edition, 2009. +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/25/ +Craft +“Craft” means any vessel, vehicle, hovercraft, semi-submersible, submarine or diving-submersible and includes a self-propelled, tethered, towed or bottom-contact apparatus, but does not include an installation (véhicule). +Source: Canada Oil and Gas Diving Regulations, SOR/88-600, February 2013. +Regulations +Source: Nova Scotia Offshore Area Petroleum Diving Regulations, SOR/95-189, Canada, current to May 31, 2012. +Regulations + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/26/ +Cash-bid petroleum exploration permit +Cash-bid petroleum exploration permit means: +a petroleum exploration permit granted under Division 3 of Part 2.2 of this Act; or +an exploration permit granted under section 22B of the repealed Petroleum (Submerged Lands) Act 1967; or +a petroleum exploration permit granted under Division 5 of Part 2.2 of this Act by way of the renewal of a permit referred to in paragraph (a) or (b); or +an exploration permit granted under section 32 of the repealed Petroleum (Submerged Lands) Act 1967 by way of the renewal of a permit referred to in paragraph (b). +Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. +Legislation + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/27/ +Combustion +The oxidation of materials accompanied by the development of heat and usually the production of flame. +Source: +API +RP 14G, Recommended Practice for Fire Prevention and Control on Fixed Open-type Offshore Production Platforms: Upstream Segment, Fourth Edition, April 2007. +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/28/ +Critical crack depth +Crack dimension at which unstable crack propagation is predicted to occur based on fracture mechanics calculations. NOTE 1 Crack depth for a given load at which the stress intensity factor equals the plane strain fracture toughness (KIC). NOTE 2 Crack depth is that depth at which the combination of load ratio and toughness ratio are at the limit on the failure assessment diagram. +Source: +API +TR 1PER15K-1, Protocol for Verification and Validation of High-pressure High-temperature Equipment, First Edition, March 2013. +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/29/ +Class 2 +An API service classification for used drill pipe and tubing work strings. +Source: +API +RP 7G, Recommended Practice for Drill Stem Design and Operating Limits, Upstream Segment, Sixteenth Edition, August 1998 (Addendum 2: September 2009). +Global Standards +Class 2 +Second in the hierarchy of used drill pipe service classifications for used drill pipe that does not meet premium class requirements. +Source: +API +RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/3/ +Communication System +Arrangement of hardware, software, and propagation media to allow the transfer of messages (ISO/IEC 7498 application layer service data units) from one application to another. +Source: ANSI/ISA–99.00.01–2007, Security for Industrial Automation and Control Systems, Part 1: Terminology, Concepts, and Models, 29 October 2007. +National Standard + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/30/ +Circular Magnetic Field or Circumferential Magnetic Field +Magnetic field in or surrounding a current-carrying conductor, or OCTG, such that the magnetic field is oriented circumferentially within the wall of the OCTG. +Source: +API +RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/31/ +Control Station/Panel, Remote +A panel containing a series of controls that will operate the BOP functions from a location that is remote from the hydraulic control manifold, or central processor in the case of a MUX or Multiplex control system. NOTE: The control station for a discrete hydraulic system is at the HPU. +Source: +API +STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. +Global Standards +Control Panel, Remote +A panel containing a series of controls that will operate the valves on the control manifold from a remote point. +Source: +API +RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/32/ +Corrosion Rate +The rate of metal loss due to erosion, erosion/corrosion, or the chemical reaction(s) with the environment, either internal and/or external. +Source: +API +510, Pressure Vessel Inspection Code: In-service Inspection, Rating, Repair, and Alteration, Tenth Edition, May 2014, with Addendum May 2017. +Global Standards +Corrosion Rate +The rate of metal loss (e.g. reduction in thickness due to erosion, erosion/corrosion or the chemical reaction(s) with the environment, etc.) from internal and/or external damage mechanisms. +Source: +API +570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, Fourth Edition, February 2016, with Addendum May 2017. +Global Standards +Corrosion Rate +The rate of metal loss due to the reaction(s) with its environment. +Source: +API +510, Pressure Vessel Inspection Code: In-Service Inspection, Rating, Repair, and Alteration Downstream Segment, Ninth Edition, June 2006. +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/33/ +CSA +Canadian Standards Association. +API +RP 500, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and Division 2, Third Edition, December 2012, +Global Standards +Source: +API +RP 14F, Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class 1, Division 1 and Division 2 Locations, Fifth Edition, July 2008. +Global Standards +Incident Reporting and Investigation Guidelines, The Canada-Nova Scotia Offshore Petroleum Board and Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada, November 30, 2012. +Regulatory Guidance +Source:  Nova Scotia Offshore Petroleum Occupational Health & Safety Requirements, Canada-Nova Scotia Offshore Petroleum Board, Canada, December 2000. +Regulations +Source: Safety Plan Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, March 31, 2011. +Regulatory Guidance +Source: Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, Canada, current to April 29, 2013. +Regulations +CSA +“CSA” means the Canadian Standards Association (ACNOR). +Source: Canada Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, February 2013. +Regulations +Source: Environmental Protection Plan Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, March 31, 2011. +Regulatory Guidance + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/4/ +Choke Valve +Valve commonly used to control flow in oil and gas production applications. +Source: +API +STD 521, Pressure-relieving and Depressuring Systems, Sixth Edition, January 2014. +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/5/ +Close Inspection +Inspection which encompasses those aspects covered by a visual inspection and, in addition, identifies those defects, such as loose bolts, which will be apparent only by the use of access equipment + +EXAMPLE Steps, (where necessary), and tools. + +Note 1 to entry: Close inspections do not normally require the enclosure to be opened, or the equipment to be deenergized. +Source: IEC 60079-17:2013, Explosive atmospheres – Part 17: Electrical installations inspection and maintenance, Edition 5.0, November 2013. +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/6/ +Cipher +A well-defined computational procedure that takes variable inputs, including a cryptographic key, and produces an output. + +From: CNSSI 4009 +Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies ( +https://niccs.us-cert.gov/glossary +) as of 11 November 2015, +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/7/ +Creep Rupture +Rope failure due to cumulative, irrecoverable elongation of a fiber rope under load over time. +Source: +API +RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. +Global Standards +Source: +API +RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014 +. +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/8/ +Choked Flow +operating condition that occurs when pressure at the vena contracta drops below the liquid vapor pressure and the liquid starts to vaporize and form bubbles. +operating condition that occurs when the fluid velocity reaches its sonic velocity in the equipment and no additional flow can be handled. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards + +--- + +TERM: C +URL: https://iadclexicon.org/glossary/c/page/9/ +Coastal State Administration +Coastal State Administration means the Government of the coastal State concerned in cases where a MOU is engaged in exploration for, or exploitation of, the seabed and subsoil thereof, adjacent to the coast over which the coastal State exercises sovereign rights for the purposes of exploration and exploitation of its natural resources. +Source: IMO Resolution A.1079(28), Recommendations for the Training and Certification of Personnel on Mobile Offshore Units (MOUs), Adopted on 4 December 2013, International Maritime Organization, +Regulatory Guidance + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/1/ +Device, Sealed +A device so constructed that it cannot be opened during normal operational conditions or operational maintenance and is sealed to restrict entry of an external atmosphere. Such devices may be incorporated into equipment having the type of protection referred to as “nC. +Source: +API +Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, +Second Edition, May 2013. +Global Standards + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/10/ +Diagnostic Data +Data provided to monitor the condition of the downhole equipment. NOTE Can include the ability to make (engineering) adjustments. +Source: +API +SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). +Global Standards + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/11/ +Depth Prove-Up +Act of grinding a narrow notch across a surface-breaking indication until the bottom of the indication is located and then measuring the depth of the indication with a depth gauge for comparison to acceptance criteria. +Source: +API +SPEC 7-1, Specification for Rotary Drill Stem Elements, First Edition, March 2006 (Addendum April 2011). +Global Standards + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/12/ +DVIS +Diving Information Sheet. +Source: Commercial Diving Projects Offshore, Diving at Work Regulations 1997, Approved Code of Practice (UK HSE L103), First Edition, 1998. +Regulatory Guidance + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/13/ +Design Mud Weight +"Design mud weight" means the planned drilling mud weight to be used. This mud weight is used in the design of the casing strings. +Source: Corporation Commission, Oil and Gas Conservation, Oklahoma Administrative Code 165:10, February 2013. +Regulations + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/14/ +Design Casualty +Design casualty +means an engineering description of the development and severity of a casualty for use in a design scenario. +Source: IMO MSC.1/Circ.1212, Guidelines on alternative design and arrangements for SOLAS chapters II-1 and III, 15 December 2006, International Maritime Organization. +Regulatory Guidance + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/15/ +DHIV +Downhole Injection Valve - see also WIV. +Source: 117 OLF, Norwegian Oil and Gas Association recommended guidelines for Well Integrity, No. 117, Revision No. 4, June 2011. +Global Standards + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/16/ +Diving Plant and Equipment +“Diving plant and equipment” means the plant and equipment that are used in, or in connection with, a diving operation and includes the plant and equipment that are essential to a diver or pilot (matériel de plongée). +Source: Canada Oil and Gas Diving Regulations, SOR/88-600, February 2013. +Regulations +Source: Nova Scotia Offshore Area Petroleum Diving Regulations, SOR/95-189, Canada, current to May 31, 2012. +Regulations + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/17/ +Dealing +Dealing means a dealing to which Part 4.6 applies. +Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. +Legislation + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/18/ +Design Check +Assessment of a component for a load case by means of an application rule. +Source: +API +RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). +Global Standards + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/19/ +Day-to-day management and control (operator’s representative) +Refer to advice from Australian Government Solicitor, particularly Objective record A70187. +Source: NOPSEMA Guideline – Glossary – Regulatory Operations, N-09000-GL0326, Australia, Revision 5, December 2011. +Regulatory Guidance + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/2/ +DNS +Domain name system. +Source:  DNVGL-RP-G108, Cyber security in the oil and gas industry based on IEC 62443, DNV GL, September 2017. +Global Standards + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/20/ +DSC Block +Distance sensitivity calibration block. +Source: +API +RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. +Global Standards + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/21/ +DIN +Deutsches Institut fur Normung. +Source: +API +STD 521, Pressure-relieving and Depressuring Systems, Sixth Edition, January 2014. +Global Standards +DIN +Deutsches Institut für Normung e.V. +Source: +API +RP 17L2, Recommended Practice for Flexible Pipe Ancillary Equipment, First Edition, March 2013. +Global Standards +DIN +DIN: the norm issued by the Deutsche Institut fur Normalisierung. +Source: Mining Regulation of the Netherlands, WJZ 02063603, Netherlands,16 December 2002. +Regulations + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/22/ +Drilling Rig +Equipment and machinery assembled primarily for the purpose of drilling or boring a hole in the ground. +Source: +API +RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). +Global Standards +Drilling Rig +“Drilling rig” means the plant used to make a well by boring or other means, and includes a derrick, draw-works, rotary table, mud pump, blowout preventer, accumulator, choke manifold, dependent personnel accommodation and other associated equipment, including power, control and monitoring systems (appareil de forage). +Source: Atlantic Canada Offshore Petroleum Industry, Standard Practice for the Training and Qualifications of Personnel, 2013, Canadian Association of Petroleum Producers, +Global Standards +Source: Canada Oil and Gas Installations Regulations, SOR/96-111, Canada, current to May 1, 2014. +Regulations +Source: Canada Oil and Gas Installations Regulations, SOR/96-118, February 2013. +Regulations +Source: Nova Scotia Offshore Certificate of Fitness Regulations, SOR/95-187, Canada, current to May 31, 2012. +Regulations +Source: Nova Scotia Offshore Petroleum Installations Regulations, SOR/95-191, Canada, current to May 31, 2012. +Regulations +Drilling Rig +“Drilling rig” means the plant and associated support equipment used to make a hole or well by boring or other means for geophysical, exploration or production purposes (appareil de forage). +Source: Canada Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, February 2013. +Regulations +Source:  Nova Scotia Offshore Petroleum Occupational Health & Safety Requirements, Canada-Nova Scotia Offshore Petroleum Board, Canada, December 2000. +Regulations +Source: Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, Canada, current to April 29, 2013. +Regulations +Drilling Rig +Drilling rig In these Regulations, “drilling installation”, “drilling rig”, “drilling unit”, “drill site”, “installation”, “production installation”, “production operation”, “production site” and “subsea production system” have the same meaning as in subsection 2(1) of the Canada Oil and Gas Installations Regulations. +Source: Canada Oil and Gas Drilling and Production Regulations, SOR/2009-315, February 2013. +Regulations +Source: Nova Scotia Offshore Petroleum Drilling and Production Regulations, SOR/2009-317, Canada, current to May 31, 2012. +Regulations +Drilling Rig +“Drilling rig” means the equipment and machinery assembled primarily for the purpose of drilling or boring a hole in the ground. +[Mich. Admin. Code R 408 (2013)]. +Source: Oil and Gas Drilling and Servicing Operations, Michigan Administrative Code R 408, February 8, 2013. +Regulations + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/3/ +DN +Nominal Diameter. +Source: ISO 14692-1:2017, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1: Vocabulary, symbols, applications and materials, Second Edition, August 2017. +Global Standards +DN +Numerical designation of size that is common to all components in a piping system, other than components designated by outside diameters or by thread size. +Note: 1 to entry: It is a convenient round number for reference purposes and is only loosely related to manufacturing dimensions. +Source: ISO 14692-1:2017, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1: Vocabulary, symbols, applications and materials, Second Edition, August 2017. +Global Standards +DN +Diametre nominal (nominal diameter). +Source: +API +STD 521, Pressure-relieving and Depressuring Systems, Sixth Edition, January 2014. +Global Standards + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/4/ +Decrypt +To convert enciphered text to plain text by means of a cryptographic system. + +From: CNSSI 4009. +Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies ( +https://niccs.us-cert.gov/glossary +) as of 11 November 2015, +Global Standards +Decrypt +To convert encoded text to plain text by means of a code. + +From: CNSSI 4009. +Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies ( +https://niccs.us-cert.gov/glossary +) as of 11 November 2015, +Global Standards +Decrypt +A generic term encompassing decode and decipher. + +Synonym(s): + +From: CNSSI 4009. +Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies ( +https://niccs.us-cert.gov/glossary +) as of 11 November 2015, +Global Standards +Decrypt +The process of transforming ciphertext into its original plaintext. + +Extended Definition: The process of converting encrypted data back into its original form, so it can be understood. + +Adapted from: ICAM SAML 2.0 WB SSO Profile 1.0.2 +Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies ( +https://niccs.us-cert.gov/glossary +) as of 11 November 2015, +Global Standards + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/5/ +Dual Gradient +(DG) +Two or more pressure gradients within selected well sections to manage the well pressure profile. +Source: IADC UBO / MPD Glossary, December 2011. +Global Stadandards + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/6/ +Drained Condition +condition whereby the applied stresses and stress changes are supported by the soil skeleton and do not cause a change in pore pressure. +Source: +API +RP 2GEO, Geotechnical Foundation Design Considerations, First Edition, April, 2011, Addendum 1, October 2014. +Global Standards +Source: +API +Recommended Practice 2GEO, Geotechnical and Foundation Design Considerations, First Edition, April 2015 (Addendum 1, October 2014). +Global Standards + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/7/ +Durability +ability of a structure or structural component to maintain its function throughout its design service life +Source: ISO 19900:2013, Petroleum and natural gas industries – General requirements for offshore structures. +Global Standards + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/8/ +Debris +In sections 26 and 28, "debris" means any installation or structure that was put in place in the course of any work or activity required to be authorized under paragraph 5(1)(b) and that has been abandoned without such authorization as may be required by or pursuant to this Act, or any material that has broken away or been jettisoned or displaced in the course of any such work or activity. +Source: Canada Oil and Gas Operations Act, R.S.C., 1985, c. O-7, Canada, current to April 29, 2013. +Legislation +Debris +In sections 167 and 170, “debris” means any installation or structure that was put in place in the course of any work or activity required to be authorized under paragraph 142(1)(b) and that has been abandoned without such authorization as may be required by or pursuant to this Part, or any material that has broken away or been jettisoned or displaced in the course of any such work or activity. +Source: Canada-Nova Scotia Offshore Petroleum Resources Accord Implementation Act, S.C. 1988, c. 28, Canada, current to May 26, 2013. +Legislation + +--- + +TERM: D +URL: https://iadclexicon.org/glossary/d/page/9/ +dB(A) +Decibels – a measure of noise level. +Source: NOGEPA Guideline 14, Helideck Operations and Procedures Manual, Netherlands, Version 2, December 2011. +Global Standards + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/1/ +Enclosure, Purged and Pressurized +An enclosure supplied with clean air or an inert gas at sufficient flow and positive pressure to reduce to an acceptably safe level any flammable gas or vapor concentration initially present, and to maintain this safe level by positive pressure with or without continuous flow, see 4.3.5. +Source: +API +Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, +Second Edition, May 2013. +Global Standards + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/10/ +EPA Form 8700-12 +The EPA form that must be completed and delivered to the commission in order to obtain an EPA ID number. +Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. +Regulations + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/11/ +Exempted Aquifer +"Exempted aquifer" means an aquifer or its portion that meets the criteria in the definition of "underground source of drinking water" or in the definition of "treatable water", but which has been exempted according to the procedures in 165:5-7-28 and 165:10-5-14. +Source: Corporation Commission, Oil and Gas Conservation, Oklahoma Administrative Code 165:10, February 2013. +Regulations +Exempted Aquifer +“Exempted aquifer” means an aquifer that does not currently serve as a source of drinking water, and that cannot now and will not in the foreseeable future serve as a source of drinking water because: +it is hydrocarbon producing; +it is situated at a depth or location that makes the recovery of water for drinking water purposes economically or technologically impractical; or +it is so contaminated that it would be economically or technologically impractical to render that water fit for human consumption. +Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. +Regulations + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/12/ +Environmental effects evaluation +A documented evaluation of the environmental significance of the effects of the company’s activities, products and services (existing and planned). +Source: OGP Report No. 6.36/210, Guidelines for the Development and Application of Health, Safety and Environmental Management Systems, International Association of Oil & Gas Producers, July 1994. +Global Standards + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/13/ +Eligible coastal waters +Eligible coastal waters, in relation to a State or the Northern Territory, means so much of the scheduled area for the State or Territory as consists of any waters that are: +on the landward side of the territorial sea; and +not within the limits of the State or Territory. +For this purpose, assume that the breadth of the territorial sea of Australia had never been determined or declared to be greater than 3 nautical miles, but had continued to be 3 nautical miles. +Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. +Legislation + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/14/ +Explore for a potential greenhouse gas formation +For the purposes of this Act, if: +a person has reasonable grounds to suspect that a part of a geological formation could be an eligible greenhouse gas storage formation; and +the person carries out an activity for the purposes of ascertaining either or both of the following: +the spatial extent of the eligible greenhouse gas storage formation; +any of the fundamental suitability determinants of the eligible greenhouse gas storage formation; +the person is taken to explore for a potential greenhouse gas formation. +Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. +Legislation + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/15/ +EERA +Evacuation, Escape and Rescue Analysis. +Source: International Association of Drilling Contractors, Appendix 2 to Health, Safety and Environment Case Guidelines for Offshore Drilling Contractors, Issue 3.3.2, February 2010. +IADC Guidelines +Source: ISO 17776:2000, Petroleum and natural gas industries – Offshore production installations – Guidelines on tools and techniques for hazard identification and risk assessment. +Global Standards +Source: NOPSEMA Guidance Note: ALARP, N-04300-GN0166, Australia, Revision 4, December 2012. Regulatory Guidance. +Regulatory Guidance + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/16/ +Evaluation +Process of determining the severity of an imperfection which leads to determining whether the OCTG is acceptable or rejectable against the appropriate specification. +Source: +API +RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. +Global Standards +Evaluation +Process of examining, measuring and/or judging how well an entity, procedure, or action has met or is meeting stated objectives. +Sample Usage: +After increasing the number of sensors at the port, the team conducted an evaluation to determine how the sensors reduced risks to the facility. +Annotation: +Evaluation is the step in the risk management cycle that measures the effectiveness of an implemented risk management option. +Source: +DHS Risk Lexicon, U.S. Department of Homeland Security, 2010 Edition. September 2010 +Regulatory Guidance +Evaluation +Evaluation +is a design review and a performance test of a type of lifeboat release and retrieval system. +Source: IMO MSC.1/Circ.1392, Guidelines for evaluation and replacement of lifeboat release and retrieval systems, 27 May 2011, International Maritime Organization, +Regulatory Guidance + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/17/ +Emergency Source of Electrical Power +Emergency source of electrical power is a source of electrical power intended to supply the necessary services in the event of failure of the main source of electrical power. +Source: IMO Resolution A.1023(26), Code for the Construction and Equipment of Mobile Offshore Drilling Units (2009 MODU Code), 2009. +Global Standards +Emergency Source of Electrical Power +Emergency source of electrical power +is a source of electrical power, intended to supply the emergency switchboard in the event of a failure of the supply from the main source of electrical power. . +Source: IMO Resolution MSC.216(82), amendments to the International Convention for the Safety of Life at Sea, 1974, as amended, 8 December 2006, International Maritime Organization. +Legislation + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/18/ +Exploration +'Exploration' means drilling into a prospect and all related offshore oil and gas operations necessary prior to production-related operations. +Source: DIRECTIVE 2013/30/EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 12 June 2013 on safety of offshore oil and gas operations and amending Directive 2004/35/EC. +Legislation +Exploration +Exploration means the commercial search for oil, gas, or sulphur. Activities classified as exploration include but are not limited to: +Geophysical and geological (G&G) surveys using magnetic, gravity, seismic reflection, seismic refraction, gas sniffers, coring, or other systems to detect or imply the presence of oil, gas, or sulphur; and +Any drilling conducted for the purpose of searching for commercial quantities of oil, gas, and sulphur, including the drilling of any additional well needed to delineate any reservoir to enable the lessee to decide whether to proceed with development and production. +Source: Oil and Gas and Sulphur Operations in the Outer Continental Shelf, 30 CFR 250 (2013). +Regulations +Exploration +Exploration means the process of searching for minerals, including, but not limited to, +Geophysical surveys where magnetic, gravity, seismic, or other systems are used to detect or imply the presence of such minerals, and +Any drilling, whether on or off known geological structures, including the drilling of a well in which a discovery of oil or natural gas in paying quantities is made and the drilling of any additional delineation well after the discovery which is needed to delineate any reservoir and to enable the lessee to determine whether to proceed with development and production. +Source: Outer Continental Shelf Activities, 33 CFR 140-147 (2013). +Regulations +Exploration +Geological, petrophysical, geophysical, geochemical and geotechnical activities, including shallow drilling, as well as operation and use of a facility to the extent it is used for the purpose of exploration. +Source: Act 29 November 1996 No. 72 Relating to Petroleum Activities, Norway, amended June 2011. +Legislation +Exploration +Geophysical, seismographic and geological operations, including their administrative and engineering aspects, construction, maintenance, materials supply, and transportation of personnel and equipment; excludes drilling. +Source: OGP Report No. 456, Process Safety – Recommended Practice on Key Performance Indicators, International Association of Oil & Gas Producers, November 2011. +Global Standards +Exploratie (Dutch) +„exploratie”: het boren op vindplaatsen en alle daarmee verband houdende offshore olie- en gasactiviteiten die noodzakelijk zijn voordat met de productieactiviteiten wordt begonnen. +Exploration (French) +«exploration», le forage d’un prospect et toutes les opérations pétrolières et gazières connexes en mer nécessaires avant le lancement des opérations liées à la production. +Efterforskning (Danish) +»efterforskning«: boring i et prospekt og alle tilknyttede offshore olie- og gasaktiviteter, der er nødvendige forud for produktionsrelaterede aktiviteter. +Exploración (Spanish) +«exploración»: la perforación en un objetivo exploratorio así como todas las operaciones pertinentes relacionadas con el petróleo y el gas mar adentro que sean necesarias antes de las operaciones relativas a la producción. +Explorare (Romanian) +„explorare” înseamnă forarea în terenul prospectat și toate operațiunile petroliere și gaziere offshore necesare înainte de operațiunile legate de producție. +Exploration (German) +„Exploration“ das Niederbringen einer Erkundungsbohrung und alle damit zusammenhängenden Offshore-Erdöl- und -Erdgasaktivitäten, die vor Beginn des Förderbetriebs erforderlich sind. +εξερεύνηση (Greek) +«εξερεύνηση» σημαίνει την ανόρυξη γεώτρησης σε περιοχή αναζήτησης και όλες τις συναφείς υπεράκτιες εργασίες πετρελαίου και φυσικού αερίου πριν από τις εργασίες που σχετίζονται με την παραγωγή. +3 +Esplorazione (Italian) +«esplorazione»: perforazione nell’ambito di una prospezione e tutte le operazioni in mare connesse nel settore degli idrocarburi che devono essere effettuate prima delle operazioni connesse alla produzione. +Poszukiwanie (Polish) +„poszukiwanie” oznacza wiercenia poszukiwawcze i wszelką powiązaną działalność związaną ze złożami ropy naftowej i gazu ziemnego na obszarach morskich, niezbędną do rozpoczęcia działalności związanej z wydobyciem. +Pesquisa (Portuguese) +«Pesquisa», a realização de sondagens para a avaliação de prospetos e todas as operações conexas offshore de petróleo e gás que é necessário efetuar antes das operações relacionadas com a produção. +Prospektering (Swedish) +prospektering: borrning i ett prospekteringsområde och all relaterad olje- och gasverksamhet till havs som föregår produktionsrelaterad verksamhet. +Etsinnällä (Finnish) +’etsinnällä’ tarkoitetaan esiintymän porausta ja kaikkea siihen liittyvää merellä tapahtuvaa öljyn- ja kaasunporaustoimintaa, joka on tarpeen ennen tuotantoon liittyvää toimintaa. +3 +Raziskovanje (Slovenian) +„raziskovanje“ pomeni vrtanje v morebitno nahajališče in vse povezane naftne in plinske dejavnosti na morju, ki so potrebne pred dejavnostmi, povezanimi s proizvodnjo. +Prieskum (Slovak) +„prieskum“ je vrt v prieskumnom území a všetky súvisiace operácie prieskumu ložísk a ťažby ropy a zemného plynu na mori, ktoré je treba vykonať pred operáciami súvisiacimi s ťažbou. +žvalgymas (Lithuanian) +žvalgymas – žvalgomųjų gręžinių gręžimas ir visos susijusios naftos ir dujų operacijos jūroje, kurias būtina atlikti prieš atliekant su gavyba susijusias operacijas. +Feltárás (Hungarian) +„feltárás”: fúrás valamely potenciális olaj- vagy gázlelőhelyen, továbbá a termeléshez kapcsolódó tevékenységeket megelőzően szükséges valamennyi kapcsolódó tengeri olaj- és gázipari tevékenység. +Esplorazzjoni (Maltese) +‘esplorazzjoni’ tfisser it-tħaffir fi prospett u l-operazzjonijiet kollha relatati taż-żejt u tal-gass offshore meħtieġa qabel l-operazzjonijiet relatati mal-produzzjoni. +Izpēte (Latvian) +“izpēte” ir urbšana atradnē un visas ar to saistītās naftas un gāzes nozares darbības jūrā, kas jāveic, pirms tiek sāktas ar ieguvi saistītas darbības. +Uuringud (Estonian) +„uuringud”– puurimine võimalikus maardlas ja igasugused sellega seotud avamere nafta- ja gaasiammutamisprotsessid, mis on vajalikud enne tootmisprotsesside alustamist. +Průzkumem (Czech) +„průzkumem“ vrtání vrtů do výhledového místa a související činnosti v odvětví ropy a zemního plynu nutné dříve, než dojde k činnostem souvisejícím s těžbou. +проучване (Bulgarian) +„проучване“ означава сондирането в даден участък и всички съответни свързани с нефт и газ дейности в крайбрежни води, необходими на етапа преди свързаните с добива дейности. + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/2/ +EIPS +Extra improved plow steel. +Source: +API +Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. +Global Standards + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/3/ +Element +A sub-division of the OMS Framework that groups the OMS Expectations under a generic purpose. + +Company systems can be structured using different or additional Elements to align with their management approach, organisation and activities. +Source: +IOGP Report No. 510, Operating Management System Framework for controlling risk and delivering high performance in the oil and gas industry, International Association of Oil & Gas Producers, June 2014. +Global Standards + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/4/ +Erosion Allowance +Amount of wall thickness added to the pipe or component to allow for corrosion/erosion/wear. +Source: +API +Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. +Global Standards + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/5/ +Examination Outline +listing of the content areas to be included in an examination, together with the criteria (weighting) of the content areas on the overall examination. +Source: ISO/IEC TS 17027:2014, Conformity assessment – Vocabulary related to competence of persons used for certification of persons, +Global Standards + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/6/ +Exploration Agreement +Exploration agreement: an agreement of cooperation between the holder of an exploration licence and the company for the carrying out of exploration activities. +Source: Mining Act of the Netherlands, Netherlands, 2003 (as amended up to 2012). +Legislation + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/7/ +Environmental Data +Environmental data means data on oceanography, seismology and meteorology, including data that is of significance for the flight weather service. +Source: Guidance Notes on Petroleum and Natural Gas (Safety in Offshore Operations) Rules, 2008, Oil Industry Safety Directorate (India), 2012. +Regulatory Guidance +Environmental Data +Data on natural conditions (environmental data) as mentioned in the second subsection, means data on oceanography, seismology and meteorology, including data that is of significance for the flight weather service. +Source: Guidelines Regarding the Facilities Regulations, Norway, updated December 2012. +Regulatory Guidance + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/8/ +EPU +Electrical power unit. +Source: +API +SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). +Global Standards + +--- + +TERM: E +URL: https://iadclexicon.org/glossary/e/page/9/ +End Connection Or Outlet Connection +Integral male or female thread; clamp hub end connector and flange, studded or through bolted, or any other means used to join together equipment that contains or controls pressure. +Source: +API +SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). +Global Standards + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/1/ +Flameproof +A type of protection of electrical apparatus in which an enclosure will withstand an internal explosion of a flammable mixture which has penetrated into the interior, without suffering damage and without causing ignition, through any joints or structural openings in the enclosure, of an external explosive atmosphere consisting of one or more of the gases or vapors for which it is designed. This type of protection is referred to as “d.” +NOTE: See also enclosure, explosionproof. +Source: +API +Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, +Second Edition, May 2013. +Global Standards + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/10/ +Flow Calculation Procedure +“Flow calculation procedure” means the procedure to be used to convert raw meter output to a measured quantity of oil, gas or water (méthode de calcul du débit). +Source: Canada Oil and Gas Drilling and Production Regulations, SOR/2009-315, February 2013. +Regulations +Source: Drilling and Production Guidelines, The Canada-Nova Scotia Offshore Petroleum Board and Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada, March 31, 2011. +Regulatory Guidance +Flow Calculation Procedure +“Flow calculation procedure” means the procedure to be used to convert raw meter output to a measured quantity of petroleum or water; méthode de calcul du débit. +Source: Nova Scotia Offshore Petroleum Drilling and Production Regulations, SOR/2009-317, Canada, current to May 31, 2012. +Regulations + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/11/ +Form of compliance confirmation +A certain procedure for certification by documents of compliance of products or other objects, processes of design (including survey works), production, construction, installation, adjustment, operation, storage, transportation, sale and reclamation, performance of works or rendering of services with the requirements of technical regulations, provisions of standards or terms of contracts. (as amended by the Federal Law dated 01.05.2007 No. 65-FZ) +Source: Federal Law on Technical Regulation, No. 184-FZ, Russian Federation, December 2002 (amended September 2010). +Regulations + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/12/ +Flammable Gas +Substance that exists exclusively in the gaseous state at normal atmospheric pressure and temperature and is capable of igniting and burning when mixed with air (oxygen) in the proper proportion and subjected to a source of ignition. +Source: +API +RP 98, Personal Protective Equipment Selection for Oil Spill Responders, First Edition, August 2013. +Global Standards +Flammable Gas (Gas Properties) +Gas or vapour which, when mixed with air in a certain proportion, will form an explosive atmosphere. +NOTE For the purposes of this standard, the term "flammable gas" includes flammable vapours. +Source: IEC 60079-29-1, Explosive atmospheres – Part 29-1: Gas detectors – Performance requirements of detectors for flammable gases. +Global Standards +Flammable Gas (or Vapour) +Gas or vapour which, when mixed with air in certain proportions, will form an explosive gas atmosphere. +Source: IEC 61892-7, Mobile and fixed offshore units – Electrical installations – Part 7: Hazardous areas. +Global Standards + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/13/ +Fatigue Crack Growth Analysis +Analysis of crack growth from assumed initial defect size under the action of cyclic loading. NOTE Used to determine fabrication inspection requirements and in-service inspection plans. +Source: +API +RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). +Global Standards + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/14/ +Hydrostatic barrier or fluid column barrier +Hydrostatic pressure of a fluid column sufficient to prevent formation fluid influx into the wellbore. +Source: +API +RP 96, Deepwater Well Design and Construction, First Edition, March 2013. +Global Standards + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/15/ +Flashback +Phenomenon occurring in a flammable mixture of air and gas when the local velocity of the mixture becomes less than the flame velocity, causing the flame to travel back through the mixture. +Source: +API +STD 521, Pressure-relieving and Depressuring Systems, Sixth Edition, January 2014. +Global Standard +Flashback +Phenomenon occurring in a flammable mixture of air and gas when the local velocity of the combustible mixture becomes less than the flame velocity, causing the flame to travel back to the point of mixture. +Source: +API +STD 521, Pressure-relieving and Depressuring Systems, Fifth Edition, January 2007 (Addendum May 2008). +Global Standards + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/16/ +Function Test +Closing and opening (cycling) equipment to verify operability. +Source: +API +RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). +Global Standards +Function Test +The operation of a piece of equipment or system to verify its intended operation. +Source: +API +STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. +Global Standards +Function Test +"Function-test" means to actuate a component to demonstrate its proper functioning without subjecting it to pressure. +Source: Alaska Oil and Gas Conservation Commission, Definitions, Alaska Admin. Code tit. 20, § 25.990, December 7, 2012. +Regulations + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/17/ +Fire +Fire that always has at least enough air for combustion so the amount of fuel (i.e. the size of the pool or the fuel leak rate) controls the heat release rate. +Source: +API +STD 521, Pressure-relieving and Depressuring Systems, Sixth Edition, January 2014. +Global Standard +Fire +The phenomenon of combustion manifested in light, flame, and heat. +Source: +API +RP 14G, Recommended Practice for Fire Prevention and Control on Fixed Open-type Offshore Production Platforms: Upstream Segment, Fourth Edition, April 2007. +Global Standards +Fire +A fire is the phenomenon of combustion manifested in light, flame, and heat. +Source: A +PI +RP 75, Recommended Practice for Development of a Safety and Environmental Management Program for Offshore Operations and Facilities: Upstream Segment, Third Edition, May 2004. +Global Standards +Fire +Any combustion resulting from an LOPC, regardless of the presence of flame. This includes smoldering, charring, smoking, singeing, scorching, carbonizing, or the evidence that any of these have occurred. +Source: OGP Report No. 456, Process Safety – Recommended Practice on Key Performance Indicators, International Association of Oil & Gas Producers, November 2011. +Global Standards +Fire +“Fire” means unplanned or uncontrolled fire. +Source: The Offshore Installations (Prevention of Fire and Explosion, and Emergency Response) Regulations 1995, S.I. 1995/743, 1995. +Regulations + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/2/ +FN +Ferrite Number. +Source: +API +STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. +Global Standards + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/3/ +Firewall +Inter-network connection device that restricts data communication traffic between two connected networks. +Source:  DNVGL-RP-G108, Cyber security in the oil and gas industry based on IEC 62443, DNV GL, September 2017. +Global Standards +Firewall +A capability to limit network traffic between networks and/or information systems. + +Extended Definition: A hardware/software device or a software program that limits network traffic according to a set of rules of what access is and is not allowed or authorized. + +Adapted from: CNSSI 4009. +Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies ( +https://niccs.us-cert.gov/glossary +) as of 11 November 2015, +Global Standards +Firewall +Inter-network connection device that restricts data communication traffic between two connected networks [11]. +NOTE: A firewall may be either an application installed on a general-purpose computer or a dedicated platform (appliance) that forwards or rejects/drops packets on a network. Typically firewalls are used to define zone borders. Firewalls generally have rules restricting which ports are open. +Source: ANSI/ISA–99.00.01–2007, Security for Industrial Automation and Control Systems, Part 1: Terminology, Concepts, and Models, 29 October 2007. +National Standard + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/4/ +Flow Drilling +An underbalance technique where liquid hydrocarbons are returned to surface and separated by a skimmer system. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/5/ +Formal Language +set of words, semantics and logical rules with sound mathematical properties + +Note 1 to entry: Programming languages are an example of formal language with mathematical properties + +allowing them to be compiled into computer executable code. + +Note 2 to entry: Every reliability model has an underlying formal language behind the graphical elements (e.g. the + +Binary logic for Boolean models). + +  + +Note 3 to entry: Specific formal languages have been developed to model the functioning and the dysfunctioning + +of industrial systems (e.g. AltaRica[11][12]). According to their powerfulness of modelling and their mathematical + +properties they can be compiled toward event trees, fault trees, Markov graphs, Petri nets, accident sequences, + +etc. Some of them can also be directly used for Monte Carlo simulation. +Source: ISO/TR 12489:2013(E) Reliability modelling and calculation of safety systems. +Global Standards + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/6/ +First Aid Station +“First aid station” means a place, other than a first aid room or medical clinic, at which first aid supplies or equipment are stored. +Source:  Nova Scotia Offshore Petroleum Occupational Health & Safety Requirements, Canada-Nova Scotia Offshore Petroleum Board, Canada, December 2000. +Regulations +Source: Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, Canada, current to April 29, 2013. +Regulations + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/7/ +Freeboard Deck +Freeboard deck +. +(a) The freeboard deck is normally the uppermost complete deck exposed to weather and sea, which has permanent means of closing all openings in the weather part thereof, and below which all openings in the sides of the ship are fitted with permanent means of watertight closing. +(b) Lower deck as a freeboard deck +At the option of the owner and subject to the approval of the Administration, a lower deck may be designated as the freeboard deck provided it is a complete and permanent deck continuous in a fore and aft direction at least between the machinery space and peak bulkheads and continuous athwartships. +(i) When this lower deck is stepped the lowest line of the deck and the continuation of that line parallel to the upper part of the deck is taken as the freeboard deck. +(ii) When a lower deck is designated as the freeboard deck, that part of the hull which extends above the freeboard deck is treated as a superstructure so far as concerns the application of the conditions of assignment and the calculation of freeboard. It is from this deck that the freeboard is calculated. +(iii) When a lower deck is designated as the freeboard deck, such deck as a minimum shall consist of suitably framed stringers at the ship sides and transversely at each watertight bulkhead which extends to the upper deck, within cargo spaces. The width of these stringers shall not be less than can be conveniently fitted having regard to the structure and the operation of the ship. Any arrangement of stringers shall be such that structural requirement can also be met. +(c) Discontinuous freeboard deck, stepped freeboard deck. +(i) Where a recess in the freeboard deck extends to the sides of the ship and is in excess of one metre in length, the lowest line of the exposed deck and the continuation of that line parallel to the upper part of the deck is taken as the freeboard deck (see figure 3.3 +) +. +(ii) Where a recess in the freeboard deck does not extend to the sides of the ship, the upper part of the deck is taken as the freeboard deck. +(iii) Recesses not extending from side to side in a deck below the exposed deck, designated as the freeboard deck, may be disregarded, provided all openings in the weather deck are fitted with weathertight closing appliances. +(iv) Due regard shall be given to the drainage of exposed recesses and to free surface effects on stability. +(v) Provisions of subparagraphs (i) through (iv) are not intended to apply to dredgers, hopper barges or other similar types of ships with large open holds, where each case requires individual consideration. +. +Source: IMO Resolution MSC.143(77), amendments to Annex B to the 1988 Load Lines Protocol, 5 June 2003, International Maritime Organization. +Legislation +Freeboard Deck +Freeboard deck +is the deck as defined in the International Convention on Load Lines in force. . +Source: IMO Resolution MSC.216(82), amendments to the International Convention for the Safety of Life at Sea, 1974, as amended, 8 December 2006, International Maritime Organization. +Legislation +Freeboard Deck +The freeboard deck is normally the uppermost complete deck exposed to weather and sea, which has permanent means of closing all openings in the weather part, and below which all openings in the sides of the unit are fitted with permanent means of watertight closing. For semisubmersible units, see also 5.2.4. +Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 4, Steel Unit Structures, June 2013, Lloyd’s Register, +Global Standards + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/8/ +Flange, Blind +A flange with no center bore, used to close off completely a flanged end or outlet connection. +Source: +API +SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). +Global Standards + +--- + +TERM: F +URL: https://iadclexicon.org/glossary/f/page/9/ +Flow Line Valve +“Flow line” means the surface pipe which carries drilling fluid from surface tanks or other storage. +Source: +API +RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). +Global Standards + +--- + +TERM: G +URL: https://iadclexicon.org/glossary/g/page/1/ +GWT +Guided wave examination. +Source: +API +570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, Fourth Edition, February 2016, with Addendum May 2017. +Global Standards + +--- + +TERM: G +URL: https://iadclexicon.org/glossary/g/page/2/ +Ground Motions +Accelerations, velocities, or displacements of the ground produced by seismic waves radiating away from earthquake sources. + +NOTE A fixed offshore structure is founded in or on the seabed and consequently only seabed motions are of significance. The term ground motions is used rather than seabed motions for consistency of terminology with seismic design for onshore structures. +Source: +API +RP 2EQ, Seismic Design Procedures and Criteria for Offshore Structures, First Edition, November 2014. +Global Standards + +--- + +TERM: G +URL: https://iadclexicon.org/glossary/g/page/3/ +Geotechnical Work +“Geotechnical work” means work, in the field or laboratory, undertaken to determine the physical properties of materials recovered from the surface or subsurface or the seabed or its subsoil of any portion of the offshore area; travaux de géotechnique. +Source: Canada-Nova Scotia Offshore Petroleum Resources Accord Implementation Act, S.C. 1988, c. 28, Canada, current to May 26, 2013. +Legislation +Geotechnical Work +“Geotechnical work” means work, in the field or laboratory, undertaken to determine the physical properties of materials recovered from the surface or subsurface or the seabed or its subsoil of any frontier lands; travaux de géotechnique. +Source: Canada-Nova Scotia Offshore Petroleum Resources Accord Implementation Act, S.C. 1988, c. 28, Canada, current to May 26, 2013. +Legislation +Source:  Canada Petroleum Resources Act, R.S.C. 1985, c. 36 (2nd Supp.), current to April 29, 2013. +Legislation + +--- + +TERM: G +URL: https://iadclexicon.org/glossary/g/page/4/ +Gas Detection Alarm +An alarm which indicates that gas has been detected. +Source: IMO resolution A.1021(26), Code on Alarms and Indicators, 2009, 18 January 2010, International Maritime Organization. +Regulatory Guidance + +--- + +TERM: G +URL: https://iadclexicon.org/glossary/g/page/5/ +Geomembrane +Geomembrane” means an impermeable polymeric sheet material that is impervious to liquid and gas as long as it maintains its integrity, and is used as an integral part of an engineered structure designed to limit the movement of liquid or gas in a system. +Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. +Regulations + +--- + +TERM: G +URL: https://iadclexicon.org/glossary/g/page/6/ +Greenhouse gas matter +In this section, greenhouse gas matter means: +exploring for a potential greenhouse gas storage formation; or +exploring for a potential greenhouse gas injection site; or +the injection of a greenhouse gas substance into the seabed or subsoil of an offshore area; or +the storage of a greenhouse gas substance in the seabed or subsoil of an offshore area. +Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. +Legislation + +--- + +TERM: G +URL: https://iadclexicon.org/glossary/g/page/7/ +Greater Sunrise visiting inspector +Greater Sunrise visiting inspector means a petroleum project inspector who is specified in the identity card issued to that inspector under subsection 600(2) as being a Greater Sunrise visiting inspector. +Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. +Legislation + +--- + +TERM: G +URL: https://iadclexicon.org/glossary/g/page/8/ +Greenhouse gas instrument holder: +means the registered holder of a greenhouse gas instrument; and +includes: +a permittee; and +a lessee; and +a licensee; and +a pipeline licensee; and +an infrastructure licensee; and +a registered holder of a greenhouse gas search authority; and +a registered holder of a greenhouse gas special authority for the activity. +Source: Offshore Petroleum and Greenhouse Gas Storage (Environment) Regulations 2009 (Statutory Rules 1999 No. 228 as amended), Australia, prepared on 1 January 2012. +Regulations + +--- + +TERM: G +URL: https://iadclexicon.org/glossary/g/page/9/ +GVF +Gas volume fraction. +Source: +API +RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. +Global Standards + +--- + +TERM: H +URL: https://iadclexicon.org/glossary/h/page/1/ +Hydrotest +Pressure test to verify the pressure-retention integrity of a piping system after installation. +Note: 1 to entry: Hydrotest is also used as a +leak test +(3.2.68) +. +Note: 2 to entry: See +mill hydrostatic test +(3.2.78) +. +Source: ISO 14692-1:2017, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1: Vocabulary, symbols, applications and materials, Second Edition, August 2017. +Global Standards + +--- + +TERM: H +URL: https://iadclexicon.org/glossary/h/page/10/ +Health and safety representative +Health and safety representative means a person selected as a health and safety representative for a designated work group under clause 25 of Schedule 3 to the Act. +Source: Offshore Petroleum and Greenhouse Gas Storage (Safety) Regulations 2009 (Select Legislative Instrument 2009 No. 382 as amended), Australia, prepared on 1 January 2012. +Regulations +Health and safety representative +Health and safety representative means an employee elected, as an individual or as a member of a health and safety committee or both, to represent the views of employees in relation to health and safety at work. +Source: Health and Safety in Employment Act 1992, Public Act 1992 No 96, New Zealand, as of 1 July 2011. +Legislation + +--- + +TERM: H +URL: https://iadclexicon.org/glossary/h/page/11/ +HWDP +Heavy-weight drill pipe. +Source: +API +RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. +Global Standards + +--- + +TERM: H +URL: https://iadclexicon.org/glossary/h/page/12/ +High-Pressure, High-Temperature Well +Wells with a potential pressure greater than 15,000 psi (103.42MPa) at the wellhead or with a potential flowing temperature of greater than 350 °F (177 °C) at the wellhead. +Source: +API +STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. +Global Standards + +--- + +TERM: H +URL: https://iadclexicon.org/glossary/h/page/13/ +Hole +Common term that usually refers to the wellbore. +1 +Source(s) +1. API RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). +Global Standards + +--- + +TERM: H +URL: https://iadclexicon.org/glossary/h/page/2/ +HDG +Hot-dip galvanized. +Source: +ISO 21457:2010, Petroleum and natural gas industries — Materials selection and corrosion control for oil and gas production systems, First Edition,September 2010. +Global Standards + +--- + +TERM: H +URL: https://iadclexicon.org/glossary/h/page/3/ +Heat Flux +Quantity of heat divided by area and time. +Source: ISO 14692-1:2017, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1: Vocabulary, symbols, applications and materials, Second Edition, August 2017. +Global Standards +Heat Flux (heat density) +The rate of heat transfer per unit area normal to the direction of heat flow. A convenient unit is kW m +-2 +(1 kW m +-2 += 317 Btu ft +-2 +h +-1 +). It is a total of heat transmitted by radiation, conduction and convection. +Source: +API +RP 2FB, Recommended Practice for the Design of Offshore Facilities Against Fire and Blast Loading, First Edition, April 2006. +Global Standards + +--- + +TERM: H +URL: https://iadclexicon.org/glossary/h/page/4/ +Health +“Health” means the absence of physical disease or infirmity or mental illness arising out of, linked with or occurring in the course of employment, and, for the purposes of this definition, the effects of ordinary work place stress are not considered to be a physical disease or infirmity or mental illness. +Source:  Nova Scotia Offshore Petroleum Occupational Health & Safety Requirements, Canada-Nova Scotia Offshore Petroleum Board, Canada, December 2000. +Regulations + +--- + +TERM: H +URL: https://iadclexicon.org/glossary/h/page/5/ +Hydrogen Scavenger +Gel material applied inside the tube (metal or polymer) holding the optical fibre to absorb hydrogen ions that prevent fibre from “darkening” and from reducing transmission capabilities. +Source: +API +SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. +Global Standards + +--- + +TERM: H +URL: https://iadclexicon.org/glossary/h/page/6/ +High-Pressure Mud Hose +A rotary hose, vibrator hose, or jumper hose. +Source: +API +SPEC 7K, Drilling and Well Servicing Equipment Upstream Segment, Fifth Edition, June 2010 (August 2010). +Global Standards +Source: +API +SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. +Global Standards + +--- + +TERM: H +URL: https://iadclexicon.org/glossary/h/page/7/ +HSW Act +Health and Safety at Work etc Act 1974. +Source: Prevention of Fire and Explosion, and Emergency Response on Offshore Installations, Offshore Installations (Prevention of Fire and Explosion, and Emergency Response) Regulations 1995, Approved Code of Practice and guidance (UK HSE L65), Second Edition, 1997. +Regulatory Guidance +Source: A Guide to the Offshore Installations and Pipelines Works (Management and Administration) Regulations 1995, Guidance on Regulations (UK HSE L70), Second Edition, 2002. +Regulatory Guidance + +--- + +TERM: H +URL: https://iadclexicon.org/glossary/h/page/8/ +Hot Oil Operation +“Hot oil operations” means the treatment of a producing well with heated oil to melt accumulated paraffin in the tubing and annulus. +Source: Oil and Gas Drilling and Servicing Operations, Michigan Administrative Code R 408, February 8, 2013. +Regulations + +--- + +TERM: H +URL: https://iadclexicon.org/glossary/h/page/9/ +Health, safety and environmental (HSE) management +Those aspects of the overall management function (including planning) that develop, implement and maintain the HSE policy. +Source: OGP Report No. 6.36/210, Guidelines for the Development and Application of Health, Safety and Environmental Management Systems, International Association of Oil & Gas Producers, July 1994. +Global Standards + +--- + +TERM: I +URL: https://iadclexicon.org/glossary/i/page/1/ +Intermittent Service +The condition of a piping system whereby it is not in continuous operating service, i.e. it operates at regular or irregular intervals rather than continuously. +NOTE: Occasional turnarounds or other infrequent maintenance outages in an otherwise continuous process service does not constitute intermittent service. +Source: +API +570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, Fourth Edition, February 2016, with Addendum May 2017. +Global Standards + +--- + +TERM: I +URL: https://iadclexicon.org/glossary/i/page/10/ +International Safety Management (ISM) Code +International Safety Management (ISM) Code +means the International Management Code for the Safe Operation of Ships and for Pollution Prevention as adopted by the Assembly, as may be amended by the Organization. +Source: Resolution A.741(18), International Management Code for the Safe Operation of Ships and for Pollution Prevention (International Safety Management (ISM) Code), 4  November 1993, International Maritime Organization. +Regulatory Guidance +International Safety Management (ISM) Code +International Safety Management (ISM) Code +means the International Management Code for the Safe Operation of Ships and for Pollution Prevention as adopted by the Organization by resolution A.741(18), as amended. +Source: IMO Resolution MSC.255(84), Code of the International Standards and Recommended Practices for a Safety Investigation into a Marine Casualty or Marine Incident (Casualty Investigation Code), 16 May 2008, International Maritime Organization. +Regulatory Guidance + +--- + +TERM: I +URL: https://iadclexicon.org/glossary/i/page/11/ +ISM Code +ISM Code +means the International Safety Management Code, made mandatory under SOLAS regulation XI/3.1. +Source: IMO MSC.1/Circ.1251, Guidelines on the control of ships in an emergency, 19 October 2007, International Maritime Organization. +Regulatory Guidance +ISM Code +ISM Code means the International Management Code for the Safe Operation of Ships and for Pollution Prevention, as amended. +Source: IMO resolution A.1021(26), Guidelines for ships operating in polar waters, 18 January 2010, International Maritime Organization. +Regulatory Guidance + +--- + +TERM: I +URL: https://iadclexicon.org/glossary/i/page/12/ +Ignition Temperature +Lowest temperature of a heated surface at which, under specified conditions, the ignition of a flammable substance in the form of a gas or vapour mixture with air will occur. [IEV 426-02-01, modified] +NOTE IEC 60079-4 and IEC 60079-4A standardize a method for the determination of this temperature. +Source: IEC 61892-7, Mobile and fixed offshore units – Electrical installations – Part 7: Hazardous areas. +Global Standards + +--- + +TERM: I +URL: https://iadclexicon.org/glossary/i/page/13/ +Ignition Source +A source of temperature and energy sufficient to initiate combustion. +Source: +API +RP 14G, Recommended Practice for Fire Prevention and Control on Fixed Open-type Offshore Production Platforms: Upstream Segment, Fourth Edition, April 2007. +Global Standards + +--- + +TERM: I +URL: https://iadclexicon.org/glossary/i/page/14/ +Incipient Failure +Imperfection in the state or condition of an item so that a degraded or critical failure might (or might not) eventually be the expected result if corrective actions are not taken. +Source: +API +STD 689, Collection and Exchange of Reliability and Maintenance Data for Equipment, First Edition, July 2007. +GlobalS +tandards + +--- + +TERM: I +URL: https://iadclexicon.org/glossary/i/page/15/ +Inspection Plan +A strategy defining how and when a pressure vessel or pressure-relieving device will be inspected, repaired, and/or maintained. See 5.1. +Source: +API +510, Pressure Vessel Inspection Code: In-service Inspection, Rating, Repair, and Alteration, Tenth Edition, May 2014, with Addendum May 2017. +Global Standards +Inspection Plan +A documented set of actions and strategies detailing the scope, extent, methods and timing of specific inspection activities in order to determine the condition of a piping system/circuit based on defined/expected damage. (see 5.1). +Source: +API +570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, Fourth Edition, February 2016, with Addendum May 2017. +Global Standards +Inspection Plan +A strategy defining how and when a pressure vessel or pressure-relieving device will be inspected, repaired, and/or maintained. +Source: +API +510, Pressure Vessel Inspection Code: In-Service Inspection, Rating, Repair, and Alteration Downstream Segment, Ninth Edition, June 2006. +Global Standards +Inspection Plan +Document providing an overview of the sequence of inspections and tests, including appropriate resources and procedures to be referenced by the manufacturing plan. +Source: +ISO 13880:1999, Petroleum and natural gas industries — Content and drafting of a technical specification, First Edition, October 1999. +Global Standards + +--- + +TERM: I +URL: https://iadclexicon.org/glossary/i/page/16/ +Immersion Suit +Immersion suit means protective suit that reduces loss of body heat of a person wearing it in cold water. +Source: Mobile Offshore Drilling Units, 46 CFR 107-109 (2013). +Regulations +Immersion Suit +Immersion suit +is a protective suit which reduces the body heatloss of a person wearing it in cold water. . +Source: IMO Resolution MSC.47(66), adoption of amendments to the International Convention for the Safety of Life at Sea (SOLAS), 1974, 4 June 1996, International Maritime Organization. +Legislation + +--- + +TERM: I +URL: https://iadclexicon.org/glossary/i/page/2/ +Initial Risk +Risk before controls or countermeasures have been applied (See +“risk” +). +Source: ANSI/ISA–99.00.01–2007, Security for Industrial Automation and Control Systems, Part 1: Terminology, Concepts, and Models, 29 October 2007. +National Standard + +--- + +TERM: I +URL: https://iadclexicon.org/glossary/i/page/3/ +ICMP +Internet Control Message Protocol. +Source: ISO/IEC 27032:2015, Information technology — Security techniques — Guidelines for cybersecurity, First Edition, July 2012. +Global Standards + +--- + +TERM: I +URL: https://iadclexicon.org/glossary/i/page/4/ +Investigate +A NICE Workforce Framework category consisting of specialty areas responsible for the investigation of cyber events and/or crimes of IT systems, networks, and digital evidence + +From: NICE Workforce Framework. +Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies ( +https://niccs.us-cert.gov/glossary +) as of 11 November 2015, +Global Standards + +--- + +TERM: I +URL: https://iadclexicon.org/glossary/i/page/5/ +Instantaneous Measurement +Value of the measurement at a specific instant in time. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards + +--- + +TERM: I +URL: https://iadclexicon.org/glossary/i/page/6/ +IC +Incident Commander. +Source: +API +RP 98, Personal Protective Equipment Selection for Oil Spill Responders, First Edition, August 2013. +Global Standards +IC +Inspection category. +Source: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. +Global Standards +IC +Individual responsible for the overall management of the response—responsible for all aspects of the response, including developing incident objectives and managing all incident operations, setting priorities, and defining the Incident Command System (ICS) organization for the particular response. + +NOTE 1 Even if other positions are not assigned, the IC is always designated. + +NOTE 2 The IC may assign deputies, who may be from the same agency or from assisting agencies; deputies may also be used at section and branch levels of the ICS organization. + +NOTE 3 Deputies must have the same qualifications as the person for whom they work, as they must be ready to take over that position at any time. +Source: +API +RP 98, Personal Protective Equipment Selection for Oil Spill Responders, First Edition, August 2013. +Global Standards + +--- + +TERM: I +URL: https://iadclexicon.org/glossary/i/page/7/ +Information on the Activity to be Carried Out +Information on the activity to be carried out, means, in addition to the assignment itself, also the diving method, diving system and equipment and diving facility (vessel/barge or other). +Source: Guidelines Regarding the Management Regulations, Norway, updated December 2012. +Regulatory Guidance + +--- + +TERM: I +URL: https://iadclexicon.org/glossary/i/page/8/ +Internal Pressure Sheath +Polymer layer that ensures internal-fluid integrity. NOTE This layer may consist of a number of sub-layers. +Source: +API +SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. +Global Standards + +--- + +TERM: I +URL: https://iadclexicon.org/glossary/i/page/9/ +Indications, Linear +An indication in liquid penetrant or magnetic particle examination whose length is equal to or greater than 3 times its width. +Source: +API +SPEC 16RCD, Specification for Drill Through Equipment—Rotating Control Devices, Upstream Segment, First Edition, February 2005. +Global Standards + +--- + +TERM: J +URL: https://iadclexicon.org/glossary/j/page/1/ +Jointer +Tradesman able to perform satisfactory and independent work in the installation and joining of composite piping. +Source: ISO 14692-1:2017, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1: Vocabulary, symbols, applications and materials, Second Edition, August 2017. +Global Standards + +--- + +TERM: J +URL: https://iadclexicon.org/glossary/j/page/2/ +Jumper Hose +A flexible section of choke, kill, or auxiliary line that provides a continuous flow around a flex/ball joint while accommodating the angular motion at the flex/ball joint. +Source: +API +RP 16Q, Recommended Practice for Design, Selection, Operation and Maintenance of Marine Drilling Riser Systems, First Edition, November 1993 (Reaffirmed August 2001). +Global Standards +Source: ISO 13624-1:2009, Petroleum and natural gas industries – Drilling and production equipment – Part 1:Design and operation of marine drilling riser equipment. +Global Standards +Jumper Hose +A flexible hose assembly used to convey high-pressure drilling liquids that is located anywhere in the high-pressure mud piping system between the mud-pump discharge outlet and the mud standpipe manifold on the drill floor to accommodate relative movement between them. +Source: +API +SPEC 7K, Drilling and Well Servicing Equipment Upstream Segment, Fifth Edition, June 2010 (August 2010). +Global Standards +Source: +API +SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. +Global Standards + +--- + +TERM: K +URL: https://iadclexicon.org/glossary/k/page/1/ +Key Management +process of handling and controlling cryptographic keys and related material (such as initialization values) during their life cycle in a cryptographic system, including ordering, generating, distributing, storing, loading, escrowing, archiving, auditing, and destroying the keys and related material [11]. +Source: ANSI/ISA–99.00.01–2007, Security for Industrial Automation and Control Systems, Part 1: Terminology, Concepts, and Models, 29 October 2007. +National Standard + +--- + +TERM: K +URL: https://iadclexicon.org/glossary/k/page/2/ +Knowingly And Willfully +“Knowingly and willfully”, for the purpose of assessing civil penalties, means the voluntary or conscious performance of an act that is prohibited or the voluntary or conscious failure to perform an act or duty that is required.  It does not include performances or failures to perform that are honest mistakes or merely inadvertent.  It includes, but does not require, performances or failures to perform that result from a criminal or evil intent or from a specific intent to violate the law.  The conduct’s knowing and willful nature may be established by plain indifference to or reckless disregard of the requirements of statutes, rules, orders or permits.  A consistent pattern or performance or failure to perform also may be sufficient to establish the conduct’s knowing and willful nature, where such consistent pattern is neither the result of honest mistakes nor mere inadvertency.  Conduct that is otherwise regarded as being knowing and willful is rendered neither accidental nor mitigated in character by the belief that the conduct is reasonable or legal. +Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. +Regulations + +--- + +TERM: L +URL: https://iadclexicon.org/glossary/l/page/1/ +Line of Demarcation +The “line of demarcation” means the dividing line used administratively to distinguish between the areas in which structures shall conform to Class “A” and Class “B” or “C” requirements. +Source: +API +Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, +Second Edition, May 2013. +Global Standards + +--- + +TERM: L +URL: https://iadclexicon.org/glossary/l/page/10/ +Lease area +Lease area: +when used in relation to a petroleum retention lease—means the area constituted by the block or blocks that are the subject of the petroleum retention lease; or +when used in relation to a greenhouse gas holding lease—means the area constituted by the block or blocks that are the subject of the greenhouse gas holding lease. +Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. +Legislation + +--- + +TERM: L +URL: https://iadclexicon.org/glossary/l/page/11/ +Lead OHS inspector +The OHS inspector, who leads a regulatory task, liaises with external persons who may be involved, reports its outcome and directs any inspectors who are assisting. +Source: NOPSEMA Guideline – Glossary – Regulatory Operations, N-09000-GL0326, Australia, Revision 5, December 2011. +Regulatory Guidance + +--- + +TERM: L +URL: https://iadclexicon.org/glossary/l/page/12/ +Lift +Actual travel of the disc from the closed position when a valve is relieving. +Source: +API +STD 521, Pressure-relieving and Depressuring Systems, Sixth Edition, January 2014. +Global Standards +Source: +API +STD 521, Pressure-relieving and Depressuring Systems, Fifth Edition, January 2007 (Addendum May 2008). +Global Standards + +--- + +TERM: L +URL: https://iadclexicon.org/glossary/l/page/13/ +LMRP +Upper section of a subsea BOP stack that interfaces between the lower stack and drilling riser, typically consisting of a hydraulic connector, annular BOP, ball/flex joint, riser adapter, jumper lines for the choke, kill, and auxiliary lines, and subsea control pods. +Source: +API +Specification 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, Second Edition, April 2017. +Global Standards +LMRP (lower marine riser package) +The upper section of a two-section subsea BOP stack consisting of a hydraulic connector, annular BOP, ball/flex joint, riser adapter, jumper hoses for the choke, kill, and auxiliary lines, and subsea control pods. This interfaces with the lower subsea BOP stack. +Source: +API +RP 16Q, Recommended Practice for Design, Selection, Operation and Maintenance of Marine Drilling Riser Systems, First Edition, November 1993 (Reaffirmed August 2001). +Global Standards +LMRP +Lower marine riser package (for drilling). +Source: +API +RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. +Global Standards +LMRP +Lower marine riser package. +Source: +API +Specification 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, Second Edition, April 2017. +Global Standards +Source: +API +Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. +Global Standards +Source: +API +RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). +Global Standards +Source: +API +STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. +Global Standards +Source: Deepwater Well Control Guidelines. +IADC Guidelines +Source: ISO 13624-1:2009, Petroleum and natural gas industries – Drilling and production equipment – Part 1:Design and operation of marine drilling riser equipment. +Global Standards +Source: OGP Report No. 476, Recommendations for enhancements to well control training, examination and certification, International Association of Oil & Gas Producers, October +2012. +Global Standards +Source: Oil & Gas UK, Guidelines on subsea BOP systems, Issue 1, July 2012, +Global Standards +Source: NORSOK D-010, Well integrity in drilling and well operations, Rev. 3, August 2004. +Global Standards +Source: NORSOK D-001, Drilling facilities, Rev. 3, December 2012. +Global Standards +LMRP +Upper section of a two-section subsea BOP stack consisting of a hydraulic connector, annular BOP, flex joint, riser adapter, jumper hoses for the choke, kill and auxiliary lines, and subsea control pods. NOTE This interfaces with the lower subsea BOP stack. +Source: ISO 13624-1:2009, Petroleum and natural gas industries – Drilling and production equipment – Part 1:Design and operation of marine drilling riser equipment. +Global Standards + +--- + +TERM: L +URL: https://iadclexicon.org/glossary/l/page/2/ +LP4 +Limit load test path 4. +Source: +API +RP 5C5, Recommended Practice on Procedures for Testing Casing and Tubing Connections, Third Edition, July 2003 (Reaffirmed August 2010). +Global Standards + +--- + +TERM: L +URL: https://iadclexicon.org/glossary/l/page/3/ +Low head +A drilling procedure using underbalance techniques to maintain a reduced hydrostatic head on the formation. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards + +--- + +TERM: L +URL: https://iadclexicon.org/glossary/l/page/4/ +Lifting Components +parts of the structure of, or used as part of a lifting gear, such as hooks, shackles, rings etc. +Source: Rules for Classification and Construction, IV Industrial Services, 6 Offshore Technology, 9 Guideline for Personnel Transfers by Means of Lifting Appliances, Edition 2011, Germanischer Lloyd SE, +Global Standards + +--- + +TERM: L +URL: https://iadclexicon.org/glossary/l/page/5/ +LC50 +LC50: the median lethal concentration. +Source: Mining Regulation of the Netherlands, WJZ 02063603, Netherlands,16 December 2002. +Regulations + +--- + +TERM: L +URL: https://iadclexicon.org/glossary/l/page/6/ +Load Line Draught (ds) +“Load line draught (d +S +)” is the vertical distance, in metres, from the moulded baseline at mid-length to the waterline corresponding to the summer freeboard draught to be assigned to the ship. . +Source: Resolution MEPC.141(54), amendments to the Annex of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships, 1973 (Amendments to regulation 1, addition to regulation 12A, consequential amendments to the IOPP Certificate and amendments to regulation 21 of the revised Annex I of MARPOL 73/78), 24 March 2006, International Maritime Organization. +Legislation + +--- + +TERM: L +URL: https://iadclexicon.org/glossary/l/page/7/ +Lock Screw Or Tie-Down Screw +Threaded pin extending through the wall of a casing-head or tubing-head connection used to lock down hangers or energize seals. +Source: +API +SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). +Global Standards + +--- + +TERM: L +URL: https://iadclexicon.org/glossary/l/page/8/ +LEPC +“LEPC” means the local emergency planning committee established pursuant to the Emergency Planning and Community Right-To-Know Act, 42 U.S.C. section 11001. +Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. +Regulations + +--- + +TERM: L +URL: https://iadclexicon.org/glossary/l/page/9/ +LTI +Lost time injury. +Source: OGP Report No. 456, Process Safety – Recommended Practice on Key Performance Indicators, International Association of Oil & Gas Producers, November 2011. +Global Standards +Lost time injury (LTI) +A fatality or lost work day case. The number of LTIs is the sum of fatalities and lost work day cases. +Source: OGP Report No. 456, Process Safety – Recommended Practice on Key Performance Indicators, International Association of Oil & Gas Producers, November 2011. +Global Standards + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/1/ +Maintenance, Operational +Any maintenance activity, excluding corrective maintenance, intended to be performed by the operator and required in order for the equipment to serve its intended purpose. Such activities typically include the correcting of zero on a panel instrument, changing charts, record keeping, adding ink, and the like. +Source: +API +Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, +Second Edition, May 2013. +Global Standards + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/10/ +Mediterranean Sea Area +The Mediterranean Sea area means the Mediterranean Sea proper including the gulfs and seas therein with the boundary between the Mediterranean and the Black Sea constituted by the 41º N parallel and bounded to the west by the Straits of Gibraltar at the meridian 5°36΄ W. +Source: Resolution MEPC.201(62), amendments to the Annex of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships, 1973 (Revised MARPOL Annex V), 15 July 2011, International Maritime Organization. +Legislation + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/11/ +Mixing System +A system that mixes a measured amount of water soluble lubricant and, optionally, glycol to feed water and delivers it to a storage tank or reservoir. +Source: +API +SPEC 16D, Specification for Control Systems for Drilling Well Control Equipment and Control Systems for Diverter Equipment, Upstream Segment, Second Edition, July 2004. +Global Standards + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/12/ +Management Regulations +In this regulation “the Management Regulations” means the Management of Health and Safety at Work Regulations 1992. Note: S.I. 1992/2051; amended by S.I. 1994/2865. +Source: The Borehole Sites and Operations Regulations 1995, UK S.I. 1995/2038, 1995. +Regulations + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/13/ +Minor Injury +“Minor injury” means an employment injury for which medical treatment or first aid is provided and excludes a lost or restricted workday injury (blessure sans gravité). +Source: Canada Oil and Gas Drilling and Production Regulations, SOR/2009-315, February 2013. +Regulations +Source: Drilling and Production Guidelines, The Canada-Nova Scotia Offshore Petroleum Board and Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada, March 31, 2011. +Regulatory Guidance +Source: Nova Scotia Offshore Petroleum Drilling and Production Regulations, SOR/2009-317, Canada, current to May 31, 2012. +Regulations +Minor Injury +“Minor injury” means an employment injury or an occupational disease for which first aid or medical treatment is provided and excludes a disabling injury. +Source:  Nova Scotia Offshore Petroleum Occupational Health & Safety Requirements, Canada-Nova Scotia Offshore Petroleum Board, Canada, December 2000. +Regulations +Source: Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, Canada, current to April 29, 2013. +Regulations + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/14/ +Member Utilization +Maximum value of the ratio of the generalized representation of the assessment action effect to the generalized representation of the assessment resistance in compatible units. +NOTE 1 The utilization is the maximum absolute value of the ratio for each limit state and assessment situation being considered. +NOTE 2 Only utilizations smaller than or equal to 1,0 satisfy the assessment criteria for a particular limit state. +NOTE 3 The assessment action effect is the response to the factored actions. The assessment resistance is the representative resistance divided by the partial resistance factor. +NOTE 4 For members and foundations subjected to combined forces, the internal force pattern and the resistance combine into an interaction equation. If the interaction equation governing the assessment check is, or can be, reduced to an inequality of the form U ≤ 1,0, then the utilization is equal to U. +NOTE 5 Adapted from ISO 19902:2007, definition 3.56. +Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. +Global Standards + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/15/ +MAASP +Maximum Allowable Annulus Surface Pressure at the wellhead. +Source: 117 OLF, Norwegian Oil and Gas Association recommended guidelines for Well Integrity, No. 117, Revision No. 4, June 2011. +Global Standards +MAASP +Annulus pressure acceptance criteria. +Source: 117 OLF, Norwegian Oil and Gas Association recommended guidelines for Well Integrity, No. 117, Revision No. 4, June 2011. +Global Standards +MAASP +Greatest pressure that an annulus can contain, as measured at the wellhead, without compromising the integrity of any element of that annulus, including any exposed open-hole formations maximum allowable annulus surface pressure. +Source: ISO 16530-1:2017, Petroleum and natural gas industries — Well integrity – Part 1: Life cycle governance, First Edition, March 2017. +Global Standards +p +MAASP +Greatest pressure that an annulus can contain, as measured at the wellhead, without compromising the integrity of any element of that annulus, including any exposed open-hole formations maximum allowable annulus surface pressure. +Source: ISO 16530-1:2017, Petroleum and natural gas industries — Well integrity – Part 1: Life cycle governance, First Edition, March 2017. +Global Standards +MAASP +Maximum allowable annular surface pressure. +Source: ISO 16530-1:2017, Petroleum and natural gas industries — Well integrity – Part 1: Life cycle governance, First Edition, March 2017. +Global Standards +Source: OGP Report No. 476, Recommendations for enhancements to well control training, examination and certification, International Association of Oil & Gas Producers, October 2012. +Global Standards +Source: NORSOK D-010, Well integrity in drilling and well operations, Rev. 3, August 2004. +Global Standards + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/16/ +Mean Time to Repair +Expectation of the time to restoration. +Source: ISO 20815:2008, Petroleum, petrochemical and natural gas industries – Production assurance and reliability management. +Global Standards +Mean Time to Repair +expected time to achieve the repair of a failed item + +Note 1 to entry: This term MTTR is used in ISO 14224[15] and ISO 20815[16] where the fault detection time is not + +really considered: ISO 14224[15] deals with detected faults (in fact, the actual time spent to detect the fault is never + +known and cannot be collected); ISO 20815[16] deals mainly with immediately revealed failure where t he t ime + +spent to detect the faults is close to 0 (i.e. negligible). As the fault detection time is very important for the purpose + +of this Technical Report there is a need to clearly distinguish between the two following times (cf. Figure 5): + +1) the time elapsing from the actual occurrence of the failure of an item to its detection (cf. 3.1.35, MFDT); + +2) the time elapsing from the detection of the failure of an item to the restoration of its function (cf. 3.1.33, MRT). + +Note 2 to entry: The acronym MTTR is defined as the mean time to restore in the IEC 60500–191[14] or in the + +IEC 61508[2]. This is not the same as in ISO 14224[15] or ISO 20815[16]. Therefore, in order to avoid any mixed-up, + +the acronym MTTRes is used in this Technical Report instead of MTTR (cf. 3.1.32). +Source: ISO/TR 12489:2013(E) Reliability modelling and calculation of safety systems. +Global Standards + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/17/ +MHD +Major Hazards Division. +Source: NOPSEMA Guidance Note: Control Measures and Performance Standards, N-04300 GN0271, Australia, Revision 3, December 2011. +Regulatory Guidance + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/18/ +Mudline +Mudline as referenced in subsea operations refers to the seafloor. +Source: +API +STD 65 – Part 2, Isolating Potential Flow Zones During Well Construction, Upstream Segment, Second Edition, December 2010. +Global Standards + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/19/ +Marking +Assorted marks on tubular products including marks made for inspection with paint sticks and stencils, and ball-point paint tubes. +Source: +API +RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. +Global Standards + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/2/ +Manned Personnel Transfer +Engineered/marine personnel transferring operation (over a gangway) of short duration (usually less than 4 hours) covered by specific operational procedures personnel transfer procedure document describing in detail all phases of the personnel transferring operation. +Source: Offshore Gangways, DNVGL-ST-0358, DNV GL, September 2017. +Global Standards + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/20/ +MGS +Mud gas separator. +Source: +API +STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. +Global Standards +MGS +Mud/gas separator. +Source: NORSOK D-001, Drilling facilities, Rev. 3, December 2012. +Global Standards + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/21/ +Mudline casing suspension systems +Mudline casing suspension systems were originally designed to be installed by bottom supported drilling rigs (jack-ups) in shallow water applications with surface wellheads, although they are now also often used in deepwater applications with tension leg platforms. These systems provide a suspension point near the mudline to support the mass of casing strings within the wellbore. Typically the conductor and casing strings with their respective annuli are tied back to the surface, where they are terminated using conventional surface wellhead equipment. + +However, wells drilled with conventional mudline casing suspension systems can also be completed with a subsea tree, provided proper adaptation for the subsea completion is made. In general, subsea completions based on conventional mudline suspension equipment are best suited to shallow-water applications, where structural strength/robustness is not a major issue. +Source: +API +RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. +Global Standard +s + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/22/ +Mud bucket (mud box) +Device used to enclose pipe connections to deflect fluid released when a joint or stand of pipe containing liquid (wet string) is unscrewed. +Source: +API +RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). +Global Standards +Mud +Box +“Mud box” means a device used to wrap around pipe connections to deflect fluid released when a joint or pipe stand containing liquid is unscrewed. [Mich. Admin. Code R 408 (2013)]. +Source: Oil and Gas Drilling and Servicing Operations, Michigan Administrative Code R 408, February 8, 2013. +Regulations + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/3/ +Malicious Software +Software designed with malicious intent containing features or capabilities that can potentially cause harm directly or indirectly to the user and/or the user’s computer system + +EXAMPLES Viruses, worms, trojans. +Source: ISO/IEC 27032:2015, Information technology — Security techniques — Guidelines for cybersecurity, First Edition, July 2012. +Global Standards + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/4/ +Manufacturing Specification +A document which completely describes the process of making the rope, including instructions for each step of the manufacturing process. +Source: +API +RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. +Global Standards +Source: +API +RP 2SM, Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, First Edition, July 2014 +. +Global Standards + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/5/ +Maximum Operating Condition +Operating condition defined by the operator as the maximum permissible for the system. + +NOTE The maximum operating condition can be different for each riser and can be different for different phases of the operation. For example, the maximum operating condition for hydrostatic test might be a one year winter storm, while the maximum operating condition during production might be a 100-year winter storm. +Source: +API +Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. +Global Standards + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/6/ +Mobile +Mobile indicates that the unit is designed to be moved from one operating site to another. +Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, +Global Standards + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/7/ +Motor Conveyance +"Motor conveyance" means any vehicle vessel or aircraft for the conveyance of human beings, animals or goods, by land, water or air, in which petroleum is used to generate the motive power. +Source: The Petroleum Act, 1934 (Act No. 30 of 1934), India, 1934. +Legislation + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/8/ +MANAIR +Manual of Standards and Procedures for Aviation Weather Forecasts. +Source:  Offshore Physical Environmental Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, September 2008. +Regulatory Guidance + +--- + +TERM: M +URL: https://iadclexicon.org/glossary/m/page/9/ +MEWHP +Maximum expected wellhead pressure. +Source: NORSOK D-001, Drilling facilities, Rev. 3, December 2012. +Global Standards + +--- + +TERM: N +URL: https://iadclexicon.org/glossary/n/page/1/ +Nonpressure Boundary +Components of the vessel that do not contain the process pressure (e.g. trays, tray rings, distribution piping, baffles, nonstiffening insulation support rings, clips, davits, etc.). +Source: +API +510, Pressure Vessel Inspection Code: In-service Inspection, Rating, Repair, and Alteration, Tenth Edition, May 2014, with Addendum May 2017. +Global Standards +Nonpressure Boundary +Components and attachments of, or the portion of piping that does not contain the process pressure. +EXAMPLE: Clips, shoes, repads, supports, wear plates, nonstiffening insulation support rings, etc. +Source: +API +570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, Fourth Edition, February 2016, with Addendum May 2017. +Global Standards + +--- + +TERM: N +URL: https://iadclexicon.org/glossary/n/page/10/ +Non-self-propelled unit +Non-self-propelled unit means a unit which is not self-propelled. +Source: Mobile Offshore Drilling Units, 46 CFR 107-109 (2013). +Regulations + +--- + +TERM: N +URL: https://iadclexicon.org/glossary/n/page/2/ +Nitrogen, (NO +2 +) cryogenic +Inert gas, satisfies the operational requirements of underbalance drilling in terms of safety and operational flexibility. Can be expensive in underbalance operations due to transportation, storage and volume requirements. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards + +--- + +TERM: N +URL: https://iadclexicon.org/glossary/n/page/3/ +Naval Health Service +An organisation which provides OSH with expert medical opinion on diving issues. +Source: Guidelines for Occupational Diving 2004, Occupational Safety and Health Service, New Zealand, updated October 2010. +Regulatory Guidance + +--- + +TERM: N +URL: https://iadclexicon.org/glossary/n/page/4/ +NAI +Normally Attended Installation. +Source: NOGEPA Guideline 14, Helideck Operations and Procedures Manual, Netherlands, Version 2, December 2011. +Global Standards + +--- + +TERM: N +URL: https://iadclexicon.org/glossary/n/page/5/ +Non-Retrievable Control Pod +A pod that is fixed in place on the LMRP and not retrievable independently. +Source: +API +SPEC 16D, Specification for Control Systems for Drilling Well Control Equipment and Control Systems for Diverter Equipment, Upstream Segment, Second Edition, July 2004. +Global Standards + +--- + +TERM: N +URL: https://iadclexicon.org/glossary/n/page/6/ +Noncommercial Pit +"Noncommercial pit" means an earthen pit which is located either on-site or off-site and is used for the handling, storage, or disposal of deleterious substances or soils contaminated by deleterious substances produced, obtained, or used in connection with the drilling and/or operation of a well or wells, and is operated by the generator of the waste. This does not include a disposal well pit. +Source: Corporation Commission, Oil and Gas Conservation, Oklahoma Administrative Code 165:10, February 2013. +Regulations + +--- + +TERM: N +URL: https://iadclexicon.org/glossary/n/page/7/ +National standard +A standard approved by a national body of the Russian Federation for standardization. +Source: Federal Law on Technical Regulation, No. 184-FZ, Russian Federation, December 2002 (amended September 2010). +Regulations + +--- + +TERM: N +URL: https://iadclexicon.org/glossary/n/page/8/ +Net Lift +Submerged weight including content minus buoyancy. +Source: +API +RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). +Global Standards + +--- + +TERM: N +URL: https://iadclexicon.org/glossary/n/page/9/ +Non Fail-Safe System +Non-fail safe is a safety system where there remains the possibility of dangerous failures. +Source: +API +STD 689, Collection and Exchange of Reliability and Maintenance Data for Equipment, First Edition, July 2007. +Global Standards + +--- + +TERM: O +URL: https://iadclexicon.org/glossary/o/page/1/ +Qwner/user Inspector +An authorized inspector employed by an owner/user who has qualified by examination under the provisions of Section 4 and Annex A. +Source: +API +570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, Fourth Edition, February 2016, with Addendum May 2017. +Global Standards + +--- + +TERM: O +URL: https://iadclexicon.org/glossary/o/page/10/ +Ototoxin +Substances that may independently, or in combination with noise, cause hearing loss to exposed people (oto = ear, toxin = poison) (Tillman, 2007). +Source: NOPSEMA Guidance Note: Noise Management—Principles of Assessment and Control, N-09000-GN0401, Australia, Revision 3, December 2011. +Regulatory Guidance + +--- + +TERM: O +URL: https://iadclexicon.org/glossary/o/page/11/ +Operating Time +Time interval during which an item is in operating state. NOTE Operating time includes actual operation of the equipment or the equipment being available for performing its required function on demand. See also Table 4. +Source: +API +STD 689, Collection and Exchange of Reliability and Maintenance Data for Equipment, First Edition, July 2007. +Global Standards +Operating Time +Time interval during which an item is in an operating state. +Source: ISO 20815:2008, Petroleum, petrochemical and natural gas industries – Production assurance and reliability management. +Global Standards + +--- + +TERM: O +URL: https://iadclexicon.org/glossary/o/page/12/ +Officer in Charge, Marine Inspection +Officer in Charge, Marine Inspection means an officer of the Coast Guard who commands a Marine Inspection Zone described in 33 CFR Part 3 or his authorized representative. +Source: Mobile Offshore Drilling Units, 46 CFR 107-109 (2013). +Regulations +Officer in Charge, Marine Inspection +Officer in Charge, Marine Inspection means a person who commands a Marine Inspection Zone described in part 3 of this chapter and who is immediately responsible for the performance of duties with respect to inspections, enforcement, and administration of regulations governing units. +Source: Outer Continental Shelf Activities, 33 CFR 140-147 (2013). +Regulations + +--- + +TERM: O +URL: https://iadclexicon.org/glossary/o/page/2/ +Operations Technology +The hardware and software systems used to operate industrial control devices. + +Adapted from: DHS personnel. +Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies ( +https://niccs.us-cert.gov/glossary +) as of 11 November 2015, +Global Standards + +--- + +TERM: O +URL: https://iadclexicon.org/glossary/o/page/3/ +OSS +DNV Offshore Service Specification. +Source: Verification of Lifting Appliances for the Oil and Gas Industry, DNV-OSS-308, October 2010, Det Norske Veritas AS, +Global Standards + +--- + +TERM: O +URL: https://iadclexicon.org/glossary/o/page/4/ +Occupational Diving +Diving performed in the course of employment for gain or reward (irrespective of whether or not diving is the principal function of employment or merely an adjunct to it). It has the same meaning in these guidelines as diving work. +Source: Guidelines for Occupational Diving 2004, Occupational Safety and Health Service, New Zealand, updated October 2010. +Regulatory Guidance + +--- + +TERM: O +URL: https://iadclexicon.org/glossary/o/page/5/ +Onshore Facility +The term ”onshore facility” is used as a collective term for onshore petroleum facilities covered by these regulations and supplementary regulations. The term includes both onshore facilities covered by the Petroleum Act and onshore facilities that fall outside the scope of the Petroleum Act. The regulations also cover the actual facility for production and/or utilisation of petroleum and systems, installations and activities integrated with the onshore facility or that have a natural connection to it. The regulations also cover other systems, facilities and activities used for industrial purposes inside the ”fence” of the relevant onshore facilities. +Source: Guidelines Regarding the Framework Regulations, Norway, updated December 2012. +Regulatory Guidance +Onshore Facility +The petroleum facilities at Kårstø, Sture, Kollsnes, Mongstad, Tjeldbergodden, Melkøya, Nyhamna, Slagentangen and their associated pipeline systems, as well as the gas power plants at Hammerfest, Skogn and Grenland and their associated pipeline systems, including those parts of the onshore facilities that are also covered by the Petroleum Act's definition of a facility, cf. Section 1-6 of the Petroleum Act. +Source: Regulations relating to health, safety and the environment in the petroleum activities and at certain onshore facilities (the Framework Regulations), Norway, February 2010 (amended December 2011). +Regulations +Onshore Facilities +Onshore facilities or parts thereof also mean temporary equipment. +Source: Guidelines Regarding the Technical and Operational Regulations, Norway, updated December 2012. +Regulatory Guidance + +--- + +TERM: O +URL: https://iadclexicon.org/glossary/o/page/6/ +Oil Fuel Tank +“Oil fuel tank” means a tank in which oil fuel is carried, but excludes those tanks which would not contain oil fuel in normal operation, such as overflow tanks. . +Source: Resolution MEPC.141(54), amendments to the Annex of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships, 1973 (Amendments to regulation 1, addition to regulation 12A, consequential amendments to the IOPP Certificate and amendments to regulation 21 of the revised Annex I of MARPOL 73/78), 24 March 2006, International Maritime Organization. +Legislation + +--- + +TERM: O +URL: https://iadclexicon.org/glossary/o/page/7/ +On-Site +At the generation site. +Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. +Regulations + +--- + +TERM: O +URL: https://iadclexicon.org/glossary/o/page/8/ +Orphan Well +ORPHAN WELL shall mean a well for which no owner or operator can be found, or where such owner or operator is unwilling or unable to plug and abandon such well. +Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. +Regulations + +--- + +TERM: O +URL: https://iadclexicon.org/glossary/o/page/9/ +Offence against a listed OHS law +Offence against a listed OHS law includes an offence against section 6 of the Crimes Act 1914 that relates to an offence against a listed OHS law. Note: For other ancillary offences, see section 11.6 of the Criminal Code. +Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. +Legislation + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/1/ +Protection, Type of +The specific measures applied to electrical apparatus to avoid ignition of a surrounding explosive atmosphere. Examples are “e” and “n.” +Source: +API +Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, +Second Edition, May 2013. +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/10/ +Piping System +Interconnected piping subject to the same set or sets of design conditions. +Note: 1 to entry: The piping system also includes pipe supports, but does not include support structures. +Source: ISO 14692-1:2017, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1: Vocabulary, symbols, applications and materials, Second Edition, August 2017. +Global Standards +Piping System +An assembly of interconnected pipe that typically are subject to the same (or nearly the same) process fluid composition and/or design conditions. +NOTE: Piping systems also include pipe-supporting elements (e.g. springs, hangers, guides, etc.) but do not include support structures, such as structural frames, vertical and horizontal beams and foundations. +Source: +API +570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, Fourth Edition, February 2016, with Addendum May 2017. +Global Standards +Piping System +“Piping system” means an assembly of pipes, pipe fittings, valves, safety devices, pumps, compressors and other fixed equipment that contains a gas, vapour or liquid but does not include a boiler or pressure vessel. +Source: Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, Canada, current to April 29, 2013. +Regulations +Source:  Nova Scotia Offshore Petroleum Occupational Health & Safety Requirements, Canada-Nova Scotia Offshore Petroleum Board, Canada, December 2000. +Regulations + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/11/ +Progressive Smouldering +Progressive smouldering +means an exothermic oxidation not accompanied by flaming which is self-propagating, i.e. independent of the ignition source. It may or may not be accompanied by incandescence. +Note: In practice it has been found that there is usually a clear distinction between materials which may char under the influence of the ignition source but which do not propagate further (non-progressive) and those where smouldering develops in extent and spreads (progressive). +Source: IMO Resolution MSC.307(88), International Code for Application of Fire Test Procedures, 2010 (2010 FTP Code), 3 December 2010, International Maritime Organization. +Regulatory Guidance + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/12/ +PMR +Per manufacturer’s rating. +Source: +API +SPEC 17D, Design and Operation of Subsea Production Systems—Subsea Wellhead and Tree Equipment, Upstream Segment, Second Edition May 2011 (Errata September 2011). +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/13/ +Pop-Up Display/Control Dialog Box +A display or control that appears on a computer screen to allow increased access to a control item. An auxiliary display of data, a message, or a supplemental operational request, either as a result of a command given to a control system by an operator, or a system alarm notification. +Source: +API +SPEC 16D, Specification for Control Systems for Drilling Well Control Equipment and Control Systems for Diverter Equipment, Upstream Segment, Second Edition, July 2004. +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/14/ +Proration Bean +Type of positive choke bean of fixed length used to regulate the flow of fluid from a well. NOTE Proration is a system of allocating the amount of oil or gas a well or field is allowed to produce within a given period by a regulatory agency. +Source: +API +RP 17A Addendum 1, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, December 2010. +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/15/ +Power Safe Device +A device installed on a wireline tool string between the wireline and the detonator which permits downhole arming of the detonator. +Source: +API +RP 67, Recommended Practice for Oilfield Explosives Safety, Upstream Segment, Second Edition, May 2007. +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/16/ +Primary Exporter +Any person who is required to originate the manifest for a shipment of hazardous waste in accordance with 40 CFR, Part 262, Subpart B, or equivalent state provision, that identifies a treatment, storage, or disposal facility in a receiving country as the facility to which the hazardous waste will be sent and any intermediary arranging for the export. +Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. +Regulations + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/17/ +Prepared Clay +“Prepared clay” means a commercially processed, finely ground composite extracted from, a Pennsylvanian underclay, Pleistocene glacial clay or other materials as approved by the chief. The chief shall establish standards and conduct tests as necessary to identify approved sources of prepared clay. +Source: Division of Mineral Resources Management - Oil and Gas, Ohio Administrative Code, Chapter 1501:9, January 2012. +Regulations + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/18/ +Proration Schedule +"Proration schedule" means the periodic order of the commission authorizing the production, purchase, and transportation of oil or of natural gas from the various units of oil or of natural gas proration in allocated pools. +Source: Oil and gas Conservation, North Dakota Administrative Code, Chapter 43-02-03, April 2012. +Regulations +Proration Schedule +“Proration schedule” means the division orders authorizing the production, purchase and transportation of oil, casinghead gas and gas from the various units of oil or of gas in allocated pools. +Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. +Regulations + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/19/ +Plugging and Abandonment +PLUGGING AND ABANDONMENT shall mean the cementing of a well, the removal of its associated production facilities, the removal or abandonment in-place of its flowline, and the remediation and reclamation of the wellsite. +Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. +Regulations + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/2/ +Pipe Bonder +Tradesman able to perform satisfactory and independent work in the installation and joining of composite piping. +Source: ISO 14692-1:2017, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1: Vocabulary, symbols, applications and materials, Second Edition, August 2017. +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/20/ +Potential Loss of Life (PLL) +Expected number of statistical fatalities per year. +Source: International Association of Drilling Contractors, Appendix 2 to Health, Safety and Environment Case Guidelines for Offshore Drilling Contractors, Issue 3.3.2, February 2010. +IADC Guidelines + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/21/ +POR +Performance and operability review. +Source: ISO 20815:2008, Petroleum, petrochemical and natural gas industries – Production assurance and reliability management. +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/22/ +Post-commencement petroleum production licence +Post-commencement petroleum production licence means: +a petroleum production licence that was granted to the registered holder of: +a post-commencement petroleum exploration permit; or +a post-commencement petroleum retention lease; that was in force over the block or blocks to which the petroleum production licence relates; or +a petroleum production licence granted under section 181; or +a petroleum production licence granted under section 183, where the initial petroleum production licence mentioned in section 182 was a post-commencement petroleum production licence. +Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. +Legislation + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/23/ +Productivity Index (PI) +The PI represents one point on an inflow performance curve (IPR) and is defined as the well flow in barrels per day per psi pressure drop. +Source: +API +RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. +Global Standards +Productivity Index +The continuous production capacity of a PI is a measure of rate (MSCFD) divided by the pressure drop to generate the flow rate + +(PSI). Index is MSCFD/PSI or Barrels per day per PSI. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards +Productivity Index (PI) +"Productivity index" means the daily production of oil in barrels per unit pressure differential between the static reservoir pressure and the stabilized flowing pressure during flow at a stated rate. +Source: Corporation Commission, Oil and Gas Conservation, Oklahoma Administrative Code 165:10, February 2013. +Regulations + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/24/ +Particle Size Distribution +Mass, or net volume, classification of solid particles into each of the various size ranges as a percentage of the total solids of all sizes in a fluid sample. +Source: +API +RP 13C, Recommended Practice on Drilling Fluids Processing Systems Evaluation, Upstream Segment, Fourth Edition, December 2010. +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/25/ +PSL +Categories of design requirements based on the application. +Source: +API +Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. +Global Standards +PSL +Product specification level. +Source: +API +Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. +Global Standards +Source: +API +RP 8B, Recommended Practice for Procedures for Inspections, Maintenance, Repair and Remanufacture of Hoisting Equipment, Seventh Edition, March 2002 (Reaffirmed: August 2012). +Global Standards +Source: +API +SPEC 5CRA, Specification for Corrosion Resistant Alloy Seamless Tubes for Use as Casing, Tubing and Coupling Stock, Upstream Segment, First Edition, February 2010 (Errata August 2011). +Global Standards +Source: +API +SPEC 5CT, Specification for Casing and Tubing, Upstream Segment, Ninth Edition, July 2011 (Errata September 2012). +Global Standards +Source: +API +SPEC 5DP, Specification for Drill Pipe, First Edition, August 2009. +Global Standards +Source: +API +SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). +Global Standards +Source: +API +SPEC 8C, Drilling and Production Hoisting Equipment (PSL 1 and PSL 2), Fifth Edition, April 2012. +Global Standards +Source: +API +SPEC 17D, Design and Operation of Subsea Production Systems—Subsea Wellhead and Tree Equipment, Upstream Segment, Second Edition May 2011 (Errata September 2011). +Global Standards +Source: +API +SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/26/ +Prime Pipe +Pipe meeting all of the specified inspection and testing requirements. +Source: +API +RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/27/ +Pressure-Controlling +Product or part intended to control or regulate the movement of pressurized fluids. +Source: +API +STANDARD 18LCM, Product Life Cycle Management System Requirements for the Petroleum and Natural Gas Industries, First Edition, April 2017. +Global Standards +Pressure-Controlling +The control of the movement of pressurized fluids. +Source: +API +STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. +Global Standards +Pressure-Controlling +Part intended to control or regulate the movement of pressurized fluids (API 6A). +Source: +API +TR 1PER15K-1, Protocol for Verification and Validation of High-pressure High-temperature Equipment, First Edition, March 2013. +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/28/ +PLS +Plastic limit state. +Source: +API +RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/29/ +PPM +"Ppm" means parts per million. +Source: Alaska Oil and Gas Conservation Commission, Definitions, Alaska Admin. Code tit. 20, § 25.990, December 7, 2012. +Regulations +Source: +API +RP 49, Recommended Practice for Drilling and Well Servicing Operations Involving Hydrogen Sulfide, Third Edition, May 2001. +Global Standards +Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. +Regulations +PPM +PPM means ml/m3.  . +Source: +Resolution MEPC.118(52), amendments to the Annex of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships, 1973 (Revised Annex II of MARPOL 73/78), 15 October 2004, International Maritime Organization. +Legislation + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/3/ +Pressure-retaining Part +Part not exposed to wellbore fluids whose failure to function as intended will result in a release of wellbore fluid to the environment. +NOTE: An example is a clamp. +Source: +API +Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/4/ +Powder Filling “q” +Type of protection in which the parts capable of igniting an explosive gas atmosphere are fixed in position and completely surrounded by filling material to prevent the ignition of an external explosive atmosphere. +Source: IEC 60079-14:2013, Explosive atmospheres – Part 14: Electrical installations design, selection and erection, Edition 5.0, November 2013. +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/5/ +Predecommissioning Surveys/Data Gathering +Information-gathering phase required to gain knowledge about the existing platform and its condition. +Source: +API +RP 2SIM, Structural Integrity Management of Fixed Offshore Structures, First Edition, November 2014. +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/6/ +Pressure Loss +Rate of decrease in pressure along the flowing line or vessel (P f) due to friction of the fluid against the pipe wall. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/7/ +Personnel Credentialing +Standardizing the terms on which personnel who are engaged with direct or indirect aspects of well control performance are considered competent to perform the well control-related tasks required of their position, and defining the process to credential personnel to those terms. + +Personnel credentialing includes or requires: +Defining personnel engaged with direct or indirect aspects of well control +Defining the knowledge, skills and abilities (KSAs) required of personnel. +Defining the terms of assessment of the KSAs for each position. +Creating the means of credentialing individuals who successfully complete the requirements of the credential. +Source: Well Control Institute. +Well Control Institute + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/8/ +Purged and Pressurized +The process of (1) purging, supplying an enclosure with a protective gas at a sufficient flow and positive pressure to reduce the concentration of any flammable gas or vapor initially present to an acceptable level; and (2) pressurization, supplying an enclosure with a protective gas with or without continuous flow at sufficient pressure to prevent the entrance of a flammable gas or vapor. +API +RP 500, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and Division 2, Third Edition, December 2012, +Global Standards + +--- + +TERM: P +URL: https://iadclexicon.org/glossary/p/page/9/ +PEC/PNEC Ratio +PEC/PNEC ratio: the generic ratio between the expected concentration in the marine environment and the concentration without expected effects of chemicals, calculated in accordance with the CHARM model, based on standard discharges. +Source: Mining Regulation of the Netherlands, WJZ 02063603, Netherlands,16 December 2002. +Regulations + +--- + +TERM: Q +URL: https://iadclexicon.org/glossary/q/page/1/ +Quema +Combustión al aire libre de hidrocarburos líquidos o gaseosos recuperados durante pruebas de pozo y operaciones de producción y que no son técnica o económicamente aprovechables. La quema también puede ser utilizada para la despresurización de equipos durante mantenimientos rutinarios o emergencias. +Source: Resolución Número 40687 de 18 Jul 2017 Por la cual se establecen los criterios técnicos para proyectos de perforación exploratoria de hidrocarburos costa afuera en Colombia. Columbia Ministerio de Minas y Energia, +Regulations + +--- + +TERM: Q +URL: https://iadclexicon.org/glossary/q/page/2/ +QTC +Qualification test coupon. +Source: +API +Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. +Global Standards +Source: +API +STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. +Global Standards +Source: +API +SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). +Global Standards +Source: +API +SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). +Global Standards +Source: +API +SPEC 16RCD, Specification for Drill Through Equipment—Rotating Control Devices, Upstream Segment, First Edition, February 2005. +Global Standards +Source: +API +SPEC 17D, Design and Operation of Subsea Production Systems—Subsea Wellhead and Tree Equipment, Upstream Segment, Second Edition May 2011 (Errata September 2011). +Global Standards + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/1/ +Rope Modulus +The ratio of rope stress to strain/the ratio of rope tension to elongation. +NOTE: Stiffness is often preferred as it is difficult to determine the area for a synthetic rope. Often the terms dynamic modulus/stiffness and static modulus/stiffness are used. Dynamic refers to modulus/stiffness values obtained when the rope is loaded quickly (seconds to minutes) where static refers to modulus/stiffness values obtained when the rope is loaded slowly (hours to days). +Source: +API +RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. +Global Standards + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/10/ +Ram BOP +Blowout preventer that uses metal blocks assembled with elastomer seals to seal off pressure on a wellbore with or without tubulars in the bore. +Source: +API +STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. +Global Standards +Ram BOP +A blowout preventer that uses rams to seal off pressure in the wellbore. +Source: +API +SPEC 16D, Specification for Control Systems for Drilling Well Control Equipment and Control Systems for Diverter Equipment, Upstream Segment, Second Edition, July 2004. +Global Standards + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/11/ +Regulations +Any prescribed local, state, or Federal rule or ordinance pertaining to the subject at hand. +Source: +API +RP 67, Recommended Practice for Oilfield Explosives Safety, Upstream Segment, Second Edition, May 2007. +Global Standards +Regulations +Regulations means the Canada Oil and Gas Drilling and Production Regulations, Newfoundland Offshore Petroleum Drilling and Production Regulations, and/or Nova Scotia Offshore Petroleum Drilling and Production Regulations, as the case may be. +Source:  Offshore Waste Treatment Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, December 15, 2010. +Regulatory Guidance +Regulations +The Canada Oil and Gas Drilling and Production Regulations, Newfoundland Offshore Petroleum Drilling and Production Regulations, and/or Nova Scotia Offshore Petroleum Drilling and Production Regulations, as the case may be. +Source: Environmental Protection Plan Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, March 31, 2011. +Regulatory Guidance +Source: Safety Plan Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, March 31, 2011. +Regulatory Guidance +Regulations, The +Regulations concerning OHS made under the Act. They are some of the listed OHS laws. They have changed over time. + +From 1st January 2005 to 31st December 2009: +the Petroleum (Submerged Lands) (Management of Safety on Offshore Facilities) Regulations 1996; +the Petroleum (Submerged Lands) (Diving Safety) Regulations 2002; +the Petroleum (Submerged Lands) (Occupational Health and Safety) Regulations 1993; +the Petroleum (Submerged Lands) (Pipelines) Regulations 2001, to the extent that those regulations relate to occupational health and safety matters; +From 1st January 2010 to 7th June 2010: +the Offshore Petroleum (Safety) Regulations 2009; +From 8th June 2010 onwards: +the Offshore Petroleum and Greenhouse Gas Storage (Safety) Regulations 2009. +Source: NOPSEMA Guideline – Glossary – Regulatory Operations, N-09000-GL0326, Australia, Revision 5, December 2011. +Regulatory Guidance +Regulations +The regulations means regulations (including these Regulations) made under the Act. +Source: Offshore Petroleum and Greenhouse Gas Storage (Environment) Regulations 2009 (Statutory Rules 1999 No. 228 as amended), Australia, prepared on 1 January 2012. +Regulations +Regulations +Regulations means regulations made under the Act, including these Regulations. +Source: Offshore Petroleum and Greenhouse Gas Storage (Safety) Regulations 2009 (Select Legislative Instrument 2009 No. 382 as amended), Australia, prepared on 1 January 2012. +Regulations +Regulations +Regulations means regulations made for the purposes of this Schedule. +Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. +Legislation +Regulations +Legislation applicable to environmental programs for the Offshore Petroleum industry (listed in Section 1 of these PEGs). +Source:  Offshore Physical Environmental Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, September 2008. +Regulatory Guidance +Regulations +“Regulations” means regulations made by the Board under this Act. +Source: The Petroleum and Natural Gas Regulatory Board Act, 2006, No. 19 of 2006, India, amended as of May 2013. +Legislation + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/12/ +Reportable Release Of Brine +Reportable release of brine—Spilling, leaking, emitting, discharging, escaping or disposing of one of the following: +More than 5 gallons of brine within a 24-hour period on or into the ground at the well site where the total dissolved solids concentration of the brine is equal or greater than 10,000 mg/l. +More than 15 gallons of brine within a 24-hour period on or into the ground at the well site where the total dissolved solids concentration of the brine is less than 10,000 mg/l. +1 +Source: Oil and Gas Wells, Pennsylvania Code, Title 25, Chapter 78, December 2012. +Regulations + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/13/ +Responsible Party +Person, business, or entity that has been identified as owning the vessel or facility that caused the spill. + +NOTE The term does not imply criminal negligence. +Source: +API +RP 98, Personal Protective Equipment Selection for Oil Spill Responders, First Edition, August 2013. +Global Standards +Responsible Party +Plan―any submittal made in accordance with R.S. 30:29 and these rules for the evaluation or remediation of an affected tract as defined herein. +Source: Natural Resources, Office of Conservation – General Operations, Louisiana Administrative Code, Title 43, Part XIX, March 2013. +Regulations +Responsible Party +The operator and others participating in activities covered by these regulations, without being a licensee or owner of an onshore facility. +Source: Regulations relating to health, safety and the environment in the petroleum activities and at certain onshore facilities (the Framework Regulations), Norway, February 2010 (amended December 2011). +Regulations + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/14/ +Regional standard +A standard adopted by a regional organization for standardization. (the Paragraph was introduced by the Federal Law dated 30.12.2009 No. 385-FZ) +Source: Federal Law on Technical Regulation, No. 184-FZ, Russian Federation, December 2002 (amended September 2010). +Regulations + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/15/ +Risk Transfer +Action taken to manage risk that shifts some or all of the risk to another entity, asset, system, network, or geographic area. +Source: +API +STANDARD 780, Security Risk Assessment Methodology for the Petroleum and Petrochemical Industries, First Edition, May 2013. +Global Standards +Risk Transfer +Action taken to manage risk that shifts some or all of the risk to another entity, asset, system, network, or geographic area. +Sample Usage: +A risk transfer may occur after increasing security at one facility because it might make an alternate facility a more attractive target. +Annotation: +Risk transfer may refer to transferring the risk from asset to asset, asset to system, or some other combination, or shifting the responsibility for managing the risk from one authority to another (for example, responsibility for economic loss could be transferred from a homeowner to an insurance company). +Risk transfer is one of a set of four commonly used risk management strategies, along with risk control, risk acceptance, and risk avoidance. +Source: +DHS Risk Lexicon, U.S. Department of Homeland Security, 2010 Edition. September 2010 +Regulatory Guidance +Risk Transfer +Sharing with another party the burden of loss of benefit of gain, for a risk. + +Other Related Terms and Definitions: + +ISO Guide 73 – Sharing with another party the burden of loss of benefit of gain, for a risk. +Source: International Association of Drilling Contractors, Appendix 2 to Health, Safety and Environment Case Guidelines for Offshore Drilling Contractors, Issue 3.3.2, February 2010. +IADC Guidelines + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/16/ +Related title area +Related title area, for a related title, means the title area for the related title mentioned in the table in subsection 572(1). +Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. +Legislation + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/17/ +Riser Pipe +Seamless pipe which forms the principal conduit of the riser joint. EXAMPLE The riser pipe is the conduit for containing the production fluid flow from the well to the surface tree. +Source: +API +RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). +Global Standards +Riser Pipe +Seamless or electric-welded pipe that forms the principal conduit of the riser joint. NOTE The riser main tube is the conduit for guiding the drillstring and containing the return fluid flow from the well. +Source: ISO 13624-1:2009, Petroleum and natural gas industries – Drilling and production equipment – Part 1:Design and operation of marine drilling riser equipment. +Global Standards + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/18/ +Response Amplitude Operator +Ratio of a vessel’s motion to the wave amplitude causing that motion and presented over a wide range of wave periods +Source: +API +Specification 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, Second Edition, April 2017. +Global Standards +Response Amplitude Operator (RAO) +For regular waves, it is the ratio of a vessel's motion to the wave amplitude causing that motion and presented over a range of wave periods. +Source: +API +RP 16Q, Recommended Practice for Design, Selection, Operation and Maintenance of Marine Drilling Riser Systems, First Edition, November 1993 (Reaffirmed August 2001). +Global Standards +Response Amplitude Operator (RAO) +Relationship between wave surface elevation amplitude at a reference location and the vessel response amplitude, and the phase lag between the two. +Source: +API +Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. +Global Standards +Response Amplitude Operator (RAO) +Relationship between wave surface elevation amplitude and the vessel response amplitude, and the phase lag between the two. +Source: +API +RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). +Global Standards +Response Amplitude Operator (Regular Waves) +Ratio of a vessel's motion to the wave amplitude causing that motion and presented over a range of wave periods. +Source: ISO 13624-1:2009, Petroleum and natural gas industries – Drilling and production equipment – Part 1:Design and operation of marine drilling riser equipment. +Global Standards + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/19/ +Residual Field +Remaining magnetic field retained by ferromagnetic materials after they have been exposed to a magnetic force. +Source: +API +RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. +Global Standards + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/2/ +Remote Access +Use of systems that are inside the perimeter of the security zone being addressed from a different geographical location with the same rights as when physically present at the location. +Source:  DNVGL-RP-G108, Cyber security in the oil and gas industry based on IEC 62443, DNV GL, September 2017. +Global Standards +Remote Access +Use of systems that are inside the perimeter of the security zone being addressed from a different geographical location with the same rights as when physically present at the location. +NOTE: The exact definition of “remote” can vary according to situation. For example, access may come from a location that is remote to the specific zone, but still within the boundaries of a company or organization. This might represent a lower risk than access that originates from a location that is remote and outside of a company’s boundaries +Source: ANSI/ISA–99.00.01–2007, Security for Industrial Automation and Control Systems, Part 1: Terminology, Concepts, and Models, 29 October 2007. +National Standard + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/20/ +Rope +Wire rope unless otherwise specified. +Source: +API +RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. +Global Standards +Rope +Refers to wire rope unless otherwise specified. +Source: +API +RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. +Global Standards + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/21/ +Risk-based Inspection +A risk assessment and risk management process that is focused on inspection planning for piping systems for loss of containment in processing facilities, which considers both the probability of failure and consequence of failure due to materials of construction deterioration. See 5.2. +Source: +API +570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, Fourth Edition, February 2016, with Addendum May 2017. +Global Standards +Risk-based Inspection +A risk assessment and management process that considers both the probability of failure and consequence of failure due to material deterioration and that is focused on inspection planning for loss of containment of pressurized equipment in processing facilities due to material deterioration. These risks are managed primarily through inspection in order to influence the probability of failure but can also be managed through various other methods to control the probability and consequence of failure. +Source: +API +510, Pressure Vessel Inspection Code: In-service Inspection, Rating, Repair, and Alteration, Tenth Edition, May 2014, with Addendum May 2017. +Global Standards +Risk-based Inspection (RBI) +A risk assessment and management process that is focused on inspection planning for loss of containment of pressurized equipment in processing facilities, due to material deterioration. These risks are managed primarily through inspection in order to influence the probability of failure. +Source: +API +510, Pressure Vessel Inspection Code: In-Service Inspection, Rating, Repair, and Alteration Downstream Segment, Ninth Edition, June 2006. +Global Standards +Risk-based Inspection +Inspection strategies developed from an evaluation of the risk associated with a platform or group of similar platforms with the intention of tailoring inspection level to risk magnitude and location. +Source: +API +RP 2SIM, Structural Integrity Management of Fixed Offshore Structures, First Edition, November 2014. +Global Standards + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/22/ +Regional Director: +Regional Director means the BSEE officer with responsibility and authority for a Region within BSEE. +Source: Oil and Gas and Sulphur Operations in the Outer Continental Shelf, 30 CFR 250 (2013). +Regulations + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/3/ +Risk Communication and Consultation +Continual and iterative processes that an organization conducts to provide, share or obtain information, and to engage in dialogue with +stakeholders +regarding the management of +risk. +Note 1 to entry: The information can relate to the existence, nature, form, likelihood, significance, evaluation, acceptability and treatment of risk. +Note 2 to entry: Consultation is a two-way process of informed communication between an organization and its stakeholders on an issue prior to making a decision or determining a direction on that issue. Consultation is: +a process which impacts on a decision through influence rather than power; and +an input to decision making, not joint decision making. +Source: ISO/IEC 27000:2014, Information technology — Security techniques — Information security management systems — Overview and vocabulary, Third Edition, January 2014. +Global Standards + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/4/ +Risk Control +Deliberate action taken to reduce the potential for harm or maintain it at an acceptable level. +Sample Usage: +As a risk control measure, security guards screen items to reduce the likelihood of dangerous articles getting inside of office buildings. +Annotation: +Risk control is one of a set of four commonly used risk management strategies, along with risk avoidance, risk acceptance, and risk transfer. +Source: +DHS Risk Lexicon, U.S. Department of Homeland Security, 2010 Edition. September 2010 +Regulatory Guidance +Risk Control +A barrier implemented within an activity designed to eliminate or mitigate a risk or range of risks. + +A risk control may take the form of" hard" barriers based on engineered, physical solutions to prevent or avoid a risk, or "soft:" barriers relying on compliance with operating plans, procedures and competence of the workforce. Normally, multiple risk controls or "layers of protection" are implemented to achieve risk acceptance. +Source: +IOGP Report No. 510, Operating Management System Framework for controlling risk and delivering high performance in the oil and gas industry, International Association of Oil & Gas Producers, June 2014. +Global Standards + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/5/ +Rotating Blowout Preventer +(Rotating annular preventer designed to rotate with pipe and seal on both pipe and kelly while allowing upward and downward movement of the pipe – also known as RBOP) Design specific to underbalance drilling. Models available for both top drive and Kelly drive applications. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/6/ +Rigger +person who is familiarized with rigging hardware, slings and safety issues associated with rigging, lifting loads and lifting planning. +Source: Rules for Classification and Construction, IV Industrial Services, 6 Offshore Technology, 9 Guideline for Personnel Transfers by Means of Lifting Appliances, Edition 2011, Germanischer Lloyd SE, +Global Standards + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/7/ +Reporting And Response Systems +Reporting and response systems enable information to be collected and evaluated to ensure that appropriate remedial actions are taken to maintain control. +Source: Approved Code of Practice for Managing Hazards to Prevent Major Industrial Accidents, Health and Safety in Employment Act 1992, Department of Labour, New Zealand, July 1994. +Regulatory Guidance + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/8/ +Radiation +Radiation means ionising and non-ionising radiation. +Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. +Regulatory Guidance +Radiation +Radiation as mentioned in the first subsection, means ionising and non-ionising radiation. +Source: Guidelines Regarding the Facilities Regulations, Norway, updated December 2012. +Regulatory Guidance +Source: Guidelines Regarding the Technical and Operational Regulations, Norway, updated December 2012. +Regulatory Guidance +Radiation +Radiation as mentioned in fourth subsection, means ionising and non-ionising radiation. +Source: Guidelines Regarding the Technical and Operational Regulations, Norway, updated December 2012. +Regulatory Guidance + +--- + +TERM: R +URL: https://iadclexicon.org/glossary/r/page/9/ +RX +Radio receiver. +Source: +API +SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/1/ +Seal, Explosionproof Conduit +A sealing fitting, filled with a poured potting compound, designed to contain an explosion in the enclosure to which it is attached and to minimize passage of flammable gases or vapors from one location to another. +Source: +API +Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, +Second Edition, May 2013. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/10/ +Scraper +Pigging device for cleaning paraffin or other substances from the inside surface of a pipeline. See pig. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/11/ +Sustainability +A system that is sustainable should meet the needs of the present without compromising the ability of future generations to meet their own needs. (Brundtland Report—WCED, 1987). +Source: Identifying and assessing water sources: Guidance document for the onshore oil and gas industry, International Petroleum Industry Environmental Conservation Association (IPIECA), 2014. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/12/ +Support Units +Support units are units whose primary function is to support offshore installations. They are normally engaged in one or more of the following functions: crane operations, fire-fighting, diving operations, maintenance, construction, pipelaying and accommodation. +Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/13/ +Spurious Failure +failure triggering an action in an untimely manner + +Note 1 to entry: Critical safe failures (see Figure B.1) are the typical spurious failures related to safety systems. + +Note 2 to entry: A spurious failure does not necessarily imply a spurious trip (3.4.14) but a spurious trip is always + +the result of a spurious failure. +Source: ISO/TR 12489:2013(E) Reliability modelling and calculation of safety systems. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/14/ +Stratum +“Stratum” means a layer of rock more or less similar through out a lithological unit. +Source: The Petroleum and Natural Gas Rules, 1959 (As amended from time to time), India, as amended as of May 2013. +Regulations + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/15/ +Signaller +“Signaller” means a person instructed by an employer to direct, by means of visual or auditory signals, the safe movement and operation of materials handling equipment; signaleur. +Source: Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, Canada, current to April 29, 2013. +Regulations + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/16/ +Shotpoint +“Shotpoint” means the surface location of a seismic energy source; point de tir. +Source: Canada Oil and Gas Geophysical Operations Regulations, SOR/96-117, Canada, current to April 29, 2013. +Regulations +Source: Nova Scotia Offshore Area Petroleum Geophysical Operations Regulations, SOR/95-144, Canada, current to May 31, 2012 +. Regulations + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/17/ +Section Identification Capability +Section identification capability +means a system with the capability of identifying the section in which a detector or manually operated call point has activated. . +Source: IMO Resolution MSC.311(88), amendments to the International Code for Fire Safety Systems, 3 December 2010, International Maritime Organization. +Regulatory Guidance + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/18/ +Switch-Off Time +"Switch-off time" means the period of time required for luminous intensity to decrease to 5 +% +of the required luminous intensity after the daylight signalling lamp has been switched off. +Source: IMO Resolution MSC.95(72), Recommendation on Performance Standards for Daylight Signalling Lamps, 22 May 2000, International Maritime Organization. +Regulatory Guidance. + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/19/ +Subsea Termination Interface +Mechanism that forms the transition between the umbilical and the subsea termination. NOTE The interface is comprised typically of an umbilical armour termination and/or a mechanical anchoring device for the tubes, bend stiffener/limiter, and tube or hose-end fittings. If the umbilical contains electric cables/fibre optics, then penetrator(s) and/or connectors may also be incorporated. +Source: +API +SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/2/ +SCW +Security configuration wizard. +Source:  DNVGL-RP-G108, Cyber security in the oil and gas industry based on IEC 62443, DNV GL, September 2017. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/20/ +SCC +Stress corrosion cracking. +Source: +API +570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, Fourth Edition, February 2016, with Addendum May 2017. +Global Standards +Source: +API +TR 1PER15K-1, Protocol for Verification and Validation of High-pressure High-temperature Equipment, First Edition, March 2013. +Global Standards +SCC +Special clearance coupling. +Source: +API +SPEC 5CT, Specification for Casing and Tubing, Upstream Segment, Ninth Edition, July 2011 (Errata September 2012). +Global Standards +SCC +Standards Council of Canada. +Source:  Offshore Waste Treatment Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, December 15, 2010. +Regulatory Guidance +SCC +Cracking of metal involving anodic processes of localized corrosion and tensile stress (residual and/or applied) +NOTE: 1 Parameters that influence the susceptibility to SCC are temperature, pH, chlorides, dissolved oxygen, H2S and CO2. +NOTE: 2 The above definition differs from that of the same term given in ISO 15156-1:2009, definition 3.21, since it includes external environments. +Source: +ISO 21457:2010, Petroleum and natural gas industries — Materials selection and corrosion control for oil and gas production systems, First Edition,September 2010. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/21/ +Stress Corrosion Cracking (SCC) +Cracking of metal involving anodic processes of localized corrosion and tensile stress (residual and/or applied) in the presence of water and H2S. NOTE Chlorides and/or oxidants and elevated temperature can increase the susceptibility of metals to this mechanism of attack. [ISO 15156-1]. +Source: +API +SPEC 14A, Specification for Subsurface Safety Valve Equipment, Eleventh Edition, October 2005 (Reaffirmed June 2012). +Global Standards +Stress Corrosion Cracking +The cracking which results from a combination of corrosion and stress. +Source: +API +SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). +Global Standards +Stress Corrosion Cracking +Cracking induced by a combination of stress and corrosion. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards +Stress Corrosion Cracking +Cracking of metal involving anodic processes of localized corrosion and tensile stress (residual and/or applied). + +NOTE 1 Parameters that influence the susceptibility to SCC are temperature, pH, chlorides, dissolved oxygen, H2S and CO2. + +NOTE 2 The above definition differs from that of the same term given in ISO 15156-1:2009, definition 3.21, since it includes external environments. +Source: +ISO 21457:2010, Petroleum and natural gas industries — Materials selection and corrosion control for oil and gas production systems, First Edition,September 2010. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/22/ +Serialization +Assignment of a unique code to individual parts and/or pieces of equipment to maintain records. +Source: +API +Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. +Global Standards +Source: +API +STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. +Global Standards +Source: +API +SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). +Global Standards +Source: +API +SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). +Global Standards +Source: +API +SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). +Global Standards +Source: +API +SPEC 16RCD, Specification for Drill Through Equipment—Rotating Control Devices, Upstream Segment, First Edition, February 2005. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/23/ +Safety Critical Element +Part of a facility, including computer programs, whose purpose is to prevent or limit the consequences of a major accident, or whose failure could cause or contribute substantially to a major accident +Note: 1 to entry: Safety critical elements include measures for prevention, detection, control and mitigation (including personnel protection) of hazards. +[SOURCE: EU Directive 2013/30/EU, modified] +Source: ISO 16530-1:2017, Petroleum and natural gas industries — Well integrity – Part 1: Life cycle governance, First Edition, March 2017. +Global St +Safety Critical Element +Any component part of structure, equipment, plant or system whose failure could cause a major accidentt. +Source: +API +RP 2FB, Recommended Practice for the Design of Offshore Facilities Against Fire and Blast Loading, First Edition, April 2006. +Global Standards +Safety-Critical Elements +“Safety-critical elements” means such parts of an installation and such of its plant (including computer programmes), or any part thereof— +the failure of which could cause or contribute substantially to; or +a purpose of which is to prevent, or limit the effect of, a major accident. +Source: The Offshore Installations (Safety Case) Regulations 2005, UK S.I. 2005/3117, 2005. +Regulations +Safety Critical Element +Safety Critical Element (SCE) means such part of an installation and such of its plant (including computer programmes) or any part there of, the failure of which would cause or contribute substantially to, or a purpose of which is to prevent, or limit the effect of, a major accident. +Source: NOGEPA Industrial Guideline No. 43, Surface BOP Review, Best Practices Checklist, Netherlands, Version 0, December 2011. +Global Standards +Safety Critical Element +Safety-critical element— +(a) means any part of an installation or its plant (including a computer program)— +(i) that has the purpose of preventing, or limiting the effect of, a major accident; or +(ii) the failure of which could cause or contribute substantially to a major accident; and +(b) without limiting the generality of paragraph (a), includes plant installed at the installation for the purpose of— +(i) detecting smoke, fire, accumulations of flammable (and other hazardous) gases, leakages of flammable liquids, and other events that may require an emergency response; or +(ii) giving warning of an emergency by audible and, where necessary, visual alarm systems; or +(iii) limiting the extent of an emergency, including— +(A) measures to combat fire and explosions: +(B) emergency shut-down systems: +(C) facilities for the monitoring and control of the emergency and for organizing evacuation; or +(iv) protecting petroleum workers from explosion, fire, heat, smoke, hazardous gas, or fumes during any period while petroleum workers may need to remain on an installation during an emergency; or +(v) safely evacuating all petroleum workers to a place of safety; or +(vi) providing safe means of escape in the event that arrangements for evacuation fail. +Source: Health and Safety in Employment (Petroleum Exploration and Extraction) Regulations 2013, SR 2013/208, New Zealand, as of May 2013. +Regulations + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/24/ +Surplus Acreage +Substandard acreage within a lease, pooled unit, or unitized tract that remains unassigned after the assignment of acreage to each applied for, permitted, or completed well in a field, in an amount equaling or exceeding the amount established for standard or optional drilling units. Surplus acreage is distinguished from the term "tolerance acreage,"in that tolerance acreage is defined in context with proration regulation, while surplus acreage is defined by this rule only in context with well density regulation. +Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. +Regulations + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/25/ +Solution Mining Project +“Solution mining project” means a well or group of wells and associated facilities under one owner or operator utilized for the solution mining of minerals. +Source: Division of Mineral Resources Management - Oil and Gas, Ohio Administrative Code, Chapter 1501:9, January 2012. +Regulations + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/26/ +Salt Cavern Waste Disposal Facility +Salt Cavern Waste Disposal Facility―any public, private, or commercial property, including surface and subsurface lands and appurtenances thereto, used for receiving, storing, and/or processing oil and gas exploration and production waste for disposal into a solution-mined salt cavern. +Source: Natural Resources, Office of Conservation – General Operations, Louisiana Administrative Code, Title 43, Part XIX, March 2013. +Regulations + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/27/ +Shipboard Fittings +Shipboard fittings +mean bollards and bitts, fairleads, stand rollers and chocks used for the normal mooring of the ship and similar components used for the normal towing of the ship. Other components such as capstans, winches, etc. are not covered by this guidance. Any weld, bolt or other fastening connecting the shipboard fitting to the supporting hull structure is part of the shipboard fitting and subject to any industry standard applicable to such fitting. +Source: IMO MSC.1/Circ.1175, guidance on shipboard towing and mooring equipment, 24 May 2004, International Maritime Organization. +Regulatory Guidance + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/28/ +Scatter Diagram +Joint probability of two or more (metocean) parameters. + +NOTE 1 A scatter diagram is especially used with wave parameters in the metocean context, see ISO 19901-1:2005, A.5.8. The wave scatter diagram is commonly understood to be the probability of the joint occurrence of the significant wave height (H +s +) and a representative +period (T +z,i +or T +p,i +). NOTE 2 Adapted from ISO 19901-1:2005, definition 3.24. +Source: +API +RP 2MET, Derivation of Metocean Design and Operating Conditions, First Edition, November 2014. +Global Standards +Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/29/ +Soft Hang-Off (Riser Hang-Off) +The riser support at the vessel is either through the tensioners only or the tensioners and the motion compensator. This support is generally like a soft spring that results in very little riser vertical motion. The vessel motions are substantially greater than the riser motions, and the riser load variations are substantially lower in this condition than in the hard hang-off condition. +Source: ISO 13624-1:2009, Petroleum and natural gas industries – Drilling and production equipment – Part 1:Design and operation of marine drilling riser equipment. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/3/ +Sensors and Actuators +Measuring or actuating elements connected to process equipment and to the control system. +Source: ANSI/ISA–99.00.01–2007, Security for Industrial Automation and Control Systems, Part 1: Terminology, Concepts, and Models, 29 October 2007. +National Standard + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/30/ +Spar Platform +Deep-draught, small water-plane area floating structure. +Source: ISO 19901-7:2013, Petroleum and natural gas industries – Specific requirements for offshore structures – Part 7: Stationkeeping systems for floating offshore structures and mobile offshore units. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/31/ +State/territory title +State/Territory title means an instrument under a law of a State or the Northern Territory that confers, in relation to the coastal waters of the State or Territory, some or all of the rights that a Commonwealth title confers in relation to the offshore area of the State or Territory. +Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. +Legislation +State/territory title +State/Territory title means an instrument under a law of a State or the Northern Territory that confers, in relation to the coastal waters of the State or Territory, some or all of the rights that a Commonwealth title confers in relation to the offshore area of the State or Territory. Note: The offshore area of a State or Territory is defined by section 8. +Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. +Legislation + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/32/ +Soft Close-In +To Close-in a well by closing a BOP with the choke and choke line valve open, then closing the choke while monitoring the casing pressure gauge for maximum allowable casing pressure. +Source: +API +RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/33/ +Spider +Device having retractable jaws or dogs used to support the riser on the uppermost connector support shoulder during running of the riser. NOTE The handling spider sits either on the rotary bushing or in the rotary table. It provides a hang-off point for the integral C/WO riser. Some spiders will lock to the rotary via the kelly drive pinholes in the master bushing. With the pins engaged, the spider can resist torque. For non-integral risers, tubing slips and false rotaries are used in lieu of the spider. +Source: +API +RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). +Global Standards +Spider +A device for the purpose of suspending tubular goods of any type from the drilling structure, not capable of being used as elevators, that have some element on the internal diameter to grip the outer diameter surface of the pipe body of various tubular goods, that are operated manually or by spring(s) and/or pneumatic or hydraulic power or other assist device or method. +Source: +API +SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/34/ +Secondary Means of Escape +Fixed stairways or fixed ladders of non-combustible construction or portable flexible ladders, knotted manropes, or other devices, approved by the regulatory agency. +Source: +API +RP 14G, Recommended Practice for Fire Prevention and Control on Fixed Open-type Offshore Production Platforms: Upstream Segment, Fourth Edition, April 2007. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/35/ +Stationkeeping System +DW rigs maintain station (staying positioned over the wellhead location on the seafloor, within an operationally defined radius) by using either a mooring system or a dynamic positioning system. +Source: +API +RP 96, Deepwater Well Design and Construction, First Edition, March 2013. +Global Standards +Stationkeeping System +System capable of limiting the excursions of a floating structure within prescribed limits. +Source: ISO 19901-7:2013, Petroleum and natural gas industries – Specific requirements for offshore structures – Part 7: Stationkeeping systems for floating offshore structures and mobile offshore units. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/36/ +Static Gel Strength (SGS) +The yield stress of fluids at rest. +Source: +API +STD 65 – Part 2, Isolating Potential Flow Zones During Well Construction, Upstream Segment, Second Edition, December 2010. +Global Standards +Static Gel Strength (SGS) +Shear strength (stress) measurement derived from force required to initiate flow of a fluid. +Source: +API +RP 10B-6, Recommended Practice on Determining the Static Gel Strength of Cement Formulations, Upstream Segment, First Edition, August 2010. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/37/ +Stress +Load per unit area. +Source: +API +RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/38/ +Swing (Slewing) +Rotation of the upper-structure for movement of loads in a horizontal direction about the axis of rotation. +Source: +API +RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. +Global Standards +Source: +API +RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/39/ +Static bend restrictor +Design scenario where bend restrictor is subjected to static loads only, and where there is no or negligible intermittent contact between bend restrictor elements induced by wave and current environmental loads. +Source: +API +RP 17L2, Recommended Practice for Flexible Pipe Ancillary Equipment, First Edition, March 2013. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/4/ +S +u_undisturbed +Undisturbed undrained shear strength. +Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/40/ +Secondary marking +Secondary marking is defined as the marking used within a major system or location to identify components such as valves, hydraulically operated components, local tapping points used for sensing equipment, probes, etc. A character height of 50 mm (1,969 in) to 150 mm (5,906 in) should be used. Smaller sizes may be used when the specified size is impractical. +Source: +API +RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/41/ +Swingrope (swingline) +A vertically suspended rope knotted on the lower end to provide hand grips, hung above the boat landing on an offshore platform, and used to facilitate personnel transfer between boat and platform and vice versa. +Source: +API +RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/42/ +Semi-enclosed location +For the purpose of this subpart “semi-enclosed location” means a location where natural conditions of ventilation are notably different from those on open decks due to the presence of structures such as roofs, windbreaks, or bulkheads. +Source: Mobile Offshore Drilling Units, 46 CFR 107-109 (2013). +Regulations +Semi-enclosed locations +Semi-enclosed locations are locations where natural conditions of ventilation are notably different from those on open decks due to the presence of structures such as roofs, windbreaks and bulkheads and which are so arranged that dispersion of gas may not occur. +Source: IMO Resolution A.1023(26), Code for the Construction and Equipment of Mobile Offshore Drilling Units (2009 MODU Code), 2009. +Global Standards +Semi-enclosed +Semi-enclosed locations are locations where natural conditions of ventilation are notably different from those on open decks due to the presence of structures such as roofs, windbreaks and bulkheads and which are so arranged that the dispersion of gas may not occur. +Source: IEC 61892-7, Mobile and fixed offshore units – Electrical installations – Part 7: Hazardous areas. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/5/ +Sealing Element +Device preventing passage (i.e. communication) of liquid and/or gas across the interface in which it is placed. +Source: +API +SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/6/ +Systems Security Analysis +In the NICE Workforce Framework, cybersecurity work where a person: Conducts the integration/testing, operations, and maintenance of systems security. + +From: NICE Workforce Framework. +Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies ( +https://niccs.us-cert.gov/glossary +) as of 11 November 2015, +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/7/ +Sighting Survey +A survey to confirm that the relevant construction or the equipment is in a satisfactory condition and, as far as can be judged, will remain so until the postponed survey has been carried out +Source: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/8/ +System Curve +Line graph that shows how variables like viscosity, density, and flow rate combine with fixed conditions such as length of pipe, inside diameter of pipe, internal roughness of pipe, and changes in elevation influence throughput. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards + +--- + +TERM: S +URL: https://iadclexicon.org/glossary/s/page/9/ +Static +Usually refers to a pipe segment with no flow. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/1/ +Temperature, Autoignition (AIT) +The minimum temperature required to initiate or cause self-sustained combustion of a solid, liquid, or gas independently of the heating or heated element. +Source: +API +Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, +Second Edition, May 2013. +Global Standards + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/10/ +The 1969 Act +“The 1969 Act” means the Employers' Liability (Compulsory Insurance) Act 1969. Note: 1969 c. 57. +Source: The Offshore Installations and Pipeline Works (Management and Administration) Regulations 1995, UK S.I. 1995/738, 1995. +Regulations + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/11/ +Texas Offshore +This term embraces the area in the Gulf of Mexico seaward of the coast line of Texas comprised of: +the three league area confirmed to the State of Texas by the Submerged Land Act (43 United States Code §§1301-1315); and +the area seaward of such three league area owned by the United States. +Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. +Regulations + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/12/ +Type A Facility +Type A Facility—a commercial E and P Waste disposal facility within the state that utilizes technologies appropriate for the receipt, storage, treatment, reclamation, or disposal of E and P Waste solids and fluids (liquids) for a fee or other consideration. +Source: Natural Resources, Office of Conservation – General Operations, Louisiana Administrative Code, Title 43, Part XIX, March 2013. +Regulations + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/13/ +Temporary conditions +Design conditions not covered by operating conditions, e.g. conditions during fabrication, mating and installation phases, transit phases, accidental. +Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. +Global Standards +Temporary conditions +design conditions not covered by operating conditions, e.g. conditions during fabrication, mating and installation phases, dry transit phases temporary equipment equipment intended for use on board for a period not exceeding 30 months and which is covered by class, requires hook-up to systems covered by class and/or is a significant deck load and/or may pose a risk for fire, explosion and escape routes. +Source: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. +Global Standards + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/14/ +TDU +Tool deployment unit. +Source: +API +Recommended Practice 17H, Remotely Operated Tools and Interfaces on Subsea Production Systems, Second Edition, June 2013 (Addendum 1, October 2014). +Global Standards +Source: +API +RP 17H, Remotely Operated Vehicle (ROV) Interfaces on Subsea Production Systems, First Edition, July 2004 (Reaffirmed January 2009). +Global Standards + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/15/ +Thermal ratcheting +Progressive incremental inelastic deformation or strain that can occur in a component subjected to thermal cyclic loading. NOTE Thermal ratcheting causes cyclic straining of the material due to thermal loads, which can result in failure by fatigue and/or cyclic incremental deformation of a structure. +Source: +API +TR 1PER15K-1, Protocol for Verification and Validation of High-pressure High-temperature Equipment, First Edition, March 2013. +Global Standards + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/16/ +Threshold +Investigation level established during EMI or UT inspection, above which indications are further investigated. +Source: +API +RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. +Global Standards + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/17/ +Through-flowline system intervention +TFL servicing can be used in subsea wells to perform various well-servicing operations, including: setting and retrieving flow control devices such as plugs (downhole and wellhead), static chokes, gaslift valves and inserting subsurface safety valves; gathering bottomhole pressure and temperature information via the use of temporary downhole gauges; acidizing, bailing, drifting, fishing, perforating, sandwashing, wax cutting, well killing, etc. + +TFL servicing involves shutting in the target well and then pumping the required tools through a flowline/service line from the host facility to the subsea completion and thence downhole. Once the tools are pumped into position, the required functions are actuated by means of application of differential pressure to shear a pin, shift a sleeve, etc. Upon completion of the required task the TFL toolstring is pumped back to the host facility through the flowline/service line. +Source: +API +RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. +Global Standards + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/2/ +Test Series +Group of tests at the same load condition (i.e. rated, extreme, survival) that are related to each other in some manner, such as capacity or type of test. +EXAMPLE A Rated Capacity Test Series comprises all the tests that are conducted to a load level that corresponds to a rated capacity rating. +Source: +API +Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. +Global Standards +Test Series +Group of tests at the same load condition (i.e. normal, extreme, survival) that are related to each other in some manner such as capacity or type of test. +EXAMPLE A Normal Capacity Test Series is all the tests that are conducted to a load level that corresponds to a normal capacity rating. +Source: +API +Technical Report 17TR7, Verification and Validation of Subsea Connectors, First Edition, April 2017. +Global Standards + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/3/ +Traffic Light Protocol +A set of designations employing four colors (RED, AMBER, GREEN, and WHITE) used to ensure that sensitive information is shared with the correct audience. + +Adapted from: US-CERT. +Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies ( +https://niccs.us-cert.gov/glossary +) as of 11 November 2015, +Global Standards + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/4/ +Tension Tool +On- or off-line simulation that considers dynamic fluid flow characteristics over a specified time span. Also called unsteady state model. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/5/ +Thruster-assist +The use of thrusters, inclusive of their associated equipment, to supplement the unit’s positional mooring system. +Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 3, Functional Unit Types and Special Features, June 2013, Lloyd’s Register, +Global Standards + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/6/ +Transportation Rate +“Transportation rate”, in relation to common carrier or contract carrier or a city or local natural gas distribution network, means such rate for moving each unit of petroleum, petroleum products or natural gas as may be fixed by regulations. +Source: The Petroleum and Natural Gas Regulatory Board Act, 2006, No. 19 of 2006, India, amended as of May 2013. +Legislation + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/7/ +Th +Thorium. +Source: NOGEPA Industrial Guideline No. 16, Working with Naturally Occurring Radioactive Materials (NORM), Netherlands, Version 1, January 2009. +Global Standards + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/8/ +TBD +To be decided. +Source: +API +SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). +Global Standards + +--- + +TERM: T +URL: https://iadclexicon.org/glossary/t/page/9/ +Tubing Hanger Mandrel +Mechanism used to support a tubing string in a tubing head by means of a male or female thread attached to the tubing. +Source: +API +SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). +Global Standards + +--- + +TERM: U +URL: https://iadclexicon.org/glossary/u/page/1/ +Utility Piping +Non-process piping associated with a process unit (e.g. steam, air, water, nitrogen, etc.). +Source: +API +570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, Fourth Edition, February 2016, with Addendum May 2017. +Global Standards + +--- + +TERM: U +URL: https://iadclexicon.org/glossary/u/page/2/ +UOE +pipe fabrication process for welded pipes, expanded. +Source: +API +Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. +Global Standards + +--- + +TERM: U +URL: https://iadclexicon.org/glossary/u/page/3/ +UDL +Uniform distributed load. +Source: NORSOK D-001, Drilling facilities, Rev. 3, December 2012. +Global Standards + +--- + +TERM: U +URL: https://iadclexicon.org/glossary/u/page/4/ +Underground Gas Storage Facility Or Storage Facility +A facility used for the storage of natural gas or any other gaseous substance in an underground salt formation, including surface and subsurface rights, appurtenances, and improvements necessary for the operation of the facility. +Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. +Regulations + +--- + +TERM: U +URL: https://iadclexicon.org/glossary/u/page/5/ +UFJ +Upper flex joint. +Source: +API +Specification 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, Second Edition, April 2017. +Global Standards +Source: ISO 13624-1:2009, Petroleum and natural gas industries – Drilling and production equipment – Part 1:Design and operation of marine drilling riser equipment. +Global Standards + +--- + +TERM: U +URL: https://iadclexicon.org/glossary/u/page/6/ +Ultrasonic Test +NDT method using high-frequency sound waves. +Source: +API +RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. +Global Standards + +--- + +TERM: V +URL: https://iadclexicon.org/glossary/v/page/1/ +Vessel Material(s) +Vessel material(s) are defined as material essential to the structural integrity of the vessel. +Source: +API +510, Pressure Vessel Inspection Code: In-service Inspection, Rating, Repair, and Alteration, Tenth Edition, May 2014, with Addendum May 2017. +Global Standards + +--- + +TERM: V +URL: https://iadclexicon.org/glossary/v/page/2/ +Velocity Transients +Pressure waves occurring when there is a change in flow rate caused by a change in fluid energy in the line or vessel. Also known as pressure transients. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards + +--- + +TERM: V +URL: https://iadclexicon.org/glossary/v/page/3/ +Volunteer +Volunteer— +(a) means a person who— +(i) does not expect to be rewarded for work to be performed as a volunteer; and +(ii) receives no reward for work performed as a volunteer; and +(b) does not include a person who is in a place of work for the purpose of receiving on the job training or gaining work experience. +Source: Health and Safety in Employment Act 1992, Public Act 1992 No 96, New Zealand, as of 1 July 2011. +Legislation + +--- + +TERM: V +URL: https://iadclexicon.org/glossary/v/page/4/ +Validation Test +Test performed to qualify a particular size, type and model of equipment for a specific class of service. NOTE See Annex B for details. +Source: +API +SPEC 14A, Specification for Subsurface Safety Valve Equipment, Eleventh Edition, October 2005 (Reaffirmed June 2012). +Global Standards + +--- + +TERM: V +URL: https://iadclexicon.org/glossary/v/page/5/ +Variability +Variations in performance measures for different time periods under defined framework conditions. NOTE The variations can be a result of the downtime pattern for equipment and systems or operating factors, such as wind, waves and access to certain repair resources. +Source: ISO 20815:2008, Petroleum, petrochemical and natural gas industries – Production assurance and reliability management. +Global Standards + +--- + +TERM: V +URL: https://iadclexicon.org/glossary/v/page/6/ +VTI +Visual thread inspection. +Source: +API +RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. +Global Standards + +--- + +TERM: W +URL: https://iadclexicon.org/glossary/w/page/1/ +Well Control (Choke) Manifold +Part of a specially-designed section of piping installed on a drilling rig for use during well control incidents and not for MPD. This manifold and any associated choke(s) are designed for lower flow rates and higher pressures than those used for drilling. +Source: ABS Guide for Classification and Certification of Managed Pressure Drilling Systems, September 2017. +Global Standards + +--- + +TERM: W +URL: https://iadclexicon.org/glossary/w/page/10/ +Work +All activities to be performed within relevant contract(s) issued by designer, owner, operator, contractor, fabricator or manufacturer. +Source: +API +RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). +Global Standards +Work +Force applied through a distance. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards +Work +Work has the meaning given by clause 3 of Schedule 3 to the Act. +Source: Offshore Petroleum and Greenhouse Gas Storage (Safety) Regulations 2009 (Select Legislative Instrument 2009 No. 382 as amended), Australia, prepared on 1 January 2012. +Regulations +Work +Work means work offshore that is directly or indirectly related to the construction, installation, operation, maintenance or decommissioning of a facility. +Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. +Legislation + +--- + +TERM: W +URL: https://iadclexicon.org/glossary/w/page/11/ +Windshield +Device used to protect the downwind side of an elevated flare burner from direct flame impingement. +NOTE: Windshields are also integral to the design of pilots to avoid flame-outs due to high winds. +Source: +API +STD 521, Pressure-relieving and Depressuring Systems, Sixth Edition, January 2014. +Global Standards +Windshield +Device used to protect the outside of a flare burner from direct flame impingement. +NOTE: The windshield is so named because external flame impingement occurs on the downwind side of an elevated flare burner. +Source: +API +STD 521, Pressure-relieving and Depressuring Systems, Fifth Edition, January 2007 (Addendum May 2008). +Global Standards + +--- + +TERM: W +URL: https://iadclexicon.org/glossary/w/page/12/ +Wire rope +Several wire strands helically laid about an axis. + +Source: +API +RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). +Global Standards +Wire rope +A flexible, multi-wired member usually consisting of a core member around which a number of multi-wired strands are “laid” or helically wound. +Source: +API +RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. +Global Standards +Source: +API +RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. +Global Standards + +--- + +TERM: W +URL: https://iadclexicon.org/glossary/w/page/2/ +Work String Tester Valve +A downhole device that is designed to integrity test the BHA and work string. +Source: +API +SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. +Global Standards + +--- + +TERM: W +URL: https://iadclexicon.org/glossary/w/page/3/ +Wafer Check Valve +Variety of check valve that has a two-piece disk, hinged down the diameter of the pipe. Flow pushes the valve into the open position. When there is no flow, a spring pushes the disk shut to prevent back flow. +Source: IADC UBO / MPD Glossary, December 2011. +Global Standards + +--- + +TERM: W +URL: https://iadclexicon.org/glossary/w/page/4/ +WCID +well construction interface document +Source: +API +Bulletin 97, Well Construction Interface Document Guidelines, First Edition, December 2013. +Global Standards + +--- + +TERM: W +URL: https://iadclexicon.org/glossary/w/page/5/ +Wall Opening +“Wall opening” means an opening at least 750 mm high and 300 mm wide in a wall, partition, or bulkhead. +Source:  Nova Scotia Offshore Petroleum Occupational Health & Safety Requirements, Canada-Nova Scotia Offshore Petroleum Board, Canada, December 2000. +Regulations +Source: Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, Canada, current to April 29, 2013. +Regulations + +--- + +TERM: W +URL: https://iadclexicon.org/glossary/w/page/6/ +Weld, Fabrication +A weld joining two or more parts. +Source: +API +SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). +Global Standards +Source: +API +SPEC 16RCD, Specification for Drill Through Equipment—Rotating Control Devices, Upstream Segment, First Edition, February 2005. +Global Standards + +--- + +TERM: W +URL: https://iadclexicon.org/glossary/w/page/7/ +Written +The instructions need not be on paper to be ‘written’. They can be computer generated, for example, so long as they are capable of being printed out or read (eg on a display screen or electronic sign board) and understood by those who need to see them. +Source: A Guide to the Offshore Installations and Pipelines Works (Management and Administration) Regulations 1995, Guidance on Regulations (UK HSE L70), Second Edition, 2002. +Regulatory Guidance + +--- + +TERM: W +URL: https://iadclexicon.org/glossary/w/page/8/ +WQCC +“WQCC” means the New Mexico water quality control commission. +Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. +Regulations + +--- + +TERM: W +URL: https://iadclexicon.org/glossary/w/page/9/ +WIM +Well Integrity Management. +Source: 117 OLF, Norwegian Oil and Gas Association recommended guidelines for Well Integrity, No. 117, Revision No. 4, June 2011. +Global Standards \ No newline at end of file