Glossary
Browse the IADC Lexicon alphabetically or by category. Get comprehensive definitions of drilling industry terms.
Electrically (Armed) Before Ballistically Armed (EBBA)
Definition(s)
Electrically (Armed) Before Ballistically Armed (EBBA)
The electrical attachment of an electro-explosive device to a source of electrical power, prior to the mechanical alignment of all the elements of an explosive train. Source: API RP 67, Recommended Practice for Oilfield Explosives Safety, Upstream Segment, Second Edition, May 2007. Global StandardsEBBA
Definition(s)
EBBA
Electric before Ballistic Arming (see definition above). Source: API RP 67, Recommended Practice for Oilfield Explosives Safety, Upstream Segment, Second Edition, May 2007. Global StandardsDuty Holder
Definition(s)
Duty holder
The ‘duty holder’ is the operator in the case of a fixed installation (including fixed production and storage units); and the owner in the case of a mobile installation. Source: A Guide to the Offshore Installations (Safety Representatives and Safety Committees) Regulations 1989, Guidance on Regulations (UK HSE L110), Third Edition, 2012. Regulatory GuidanceDuty holder
The ‘duty holder’ is defined in regulation 2(1) of MAR. Detailed guidance is set out in the guidance to MAR, regulation 2. Source: Health Care and First Aid on Offshore Installations and Pipeline Works, Offshore Installations and Pipeline Works (First-Aid) Regulations 1989, Approved Code of Practice and Guidance (UK HSE L123), Second Edition, 2000. Regulatory GuidanceDuty holder
Any person with a duty under any listed OHS law. Source: NOPSEMA Guideline – Glossary – Regulatory Operations, N-09000-GL0326, Australia, Revision 5, December 2011. Regulatory GuidanceDuty holder
The duty holder structure for these Regulations is the same as that in SCR (the operator, in the case of a fixed installation, and the owner, in the case of a mobile installation). 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 GuidanceDuty holder
“Duty holder” means- in relation to a fixed installation, the operator; and
- in relation to a mobile installation, the owner.
Duty holder
In regulation 2 (interpretation) of the Offshore Installations (Safety Representatives and Safety Committees) Regulations 1989 (Note: S.I. 1989/971; amended by S.I. 1992/2885.) (“the 1989 Regulations”): after the definition of “appropriate languages” there shall be inserted the following definition: ““duty holder” in relation to an offshore installation means the person who is the duty holder within the meaning of regulation 2(1) of the 1995 Regulations for the purpose of those Regulations”. Source: The Offshore Installations and Pipeline Works (Management and Administration) Regulations 1995, UK S.I. 1995/738, 1995. RegulationsDuty holder
“duty holder” means—- in relation to a production installation, the operator; and
- in relation to a non-production installation, the owner.
Duty holder
For S.I. 1995/738, in regulation 2(1) (interpretation) for the definition of “duty holder”, substitute ““duty holder” means—- in relation to a production installation, the operator; and
- in relation to a non-production installation, the owner.
Drill Pipe
Definition(s)
Drill pipe
A length of tube, usually steel, to which special threaded connections called tool joints are attached. Source: API RP 7G, Recommended Practice for Drill Stem Design and Operating Limits, Upstream Segment, Sixteenth Edition, August 1998 (Addendum 2: September 2009). Global StandardsDrill pipe
Drill pipe body with weld-on tool joints. See Figure 1. Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global StandardsDrill pipe
The heavy seamless tubing used to rotate the drill bit and circulate the drilling fluid. Usually in 30-ft lengths, the joints of drill pipe are coupled together with special threaded connections called tool joints. Source: API RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). Global StandardsDrill pipe
Length of tube, usually steel, to which special threaded connections called tool joints are attached. Source API SPEC 7-1, Specification for Rotary Drill Stem Elements, First Edition, March 2006 (Addendum April 2011). Global StandardsDrill pipe
Drill-pipe body with weld-on tool joints. Source: API SPEC 5DP, Specification for Drill Pipe, First Edition, August 2009. Global StandardsDrill pipe
“Drill pipe” means a length of steel tube to which special threaded connections called tool joints are attached. Several lengths joined together are called a drill string. [Mich. Admin. Code R 408 (2013)]. Source: Oil and Gas Drilling and Servicing Operations, Michigan Administrative Code R 408, February 8, 2013. RegulationsDrill Floor Substructure
Definition(s)
Drill Floor Substructure
The foundation structure on which the derrick, rotary table, draw-works, and other drilling equipment are supported. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global StandardsDrill Floor Substructure
The foundation structure(s) on which the derrick, rotary table, drawworks, and other drilling equipment are supported. Source: API STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. Global StandardsDownstream
Definition(s)
Downstream
Direction of movement away from the reservoir. 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 StandardsDownstream
Away from a component in the direction of flow. Source: API SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). Global StandardsDownstream
Business process most commonly used in the petroleum industry to describe postproduction processes (e.g. refining, transportation and marketing of petroleum products). Source: API STD 689, Collection and Exchange of Reliability and Maintenance Data for Equipment, First Edition, July 2007. Global StandardsDownstream
Business process, most commonly in the petroleum industry, associated with post-production activities. EXAMPLES Refining, transportation and marketing of petroleum products. Source: ISO 20815:2008, Petroleum, petrochemical and natural gas industries – Production assurance and reliability management. Global StandardsDiscrete Hydraulic Control System
Definition(s)
Discrete Hydraulic Control System
A system utilizing pilot hoses to transmit hydraulic pressure signals to activate pilot operated valves assigned to functions. 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 StandardsDiagnostic Testing
Definition(s)
Diagnostic Testing
Tests or techniques performed to evaluate the existence of annular casing pressure, and in some cases, to attempt to determine the source of the annular casing pressure. Included are bleed-down/build-up tests, evaluation of fluids and volumes from bleed-down tests, evaluation of real-time accessible pressure data, production logs, operational observations, etc. Source: API RP 90, Annular Casing Pressure Management for Offshore Wells, Upstream Segment. First Edition, August 2006. Global StandardsDesign Safety Factor
Definition(s)
Design Safety Factor
Factor to account for a certain safety margin between the maximum allowable stress and the specified minimum yield strength of a material. Source: API SPEC 8C, Drilling and Production Hoisting Equipment (PSL 1 and PSL 2), Fifth Edition, April 2012. Global Standards Source:API SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. Global StandardsDefect
Definition(s)
Defect
An imperfection whose type or size exceeds the applicable acceptance criteria and is therefore rejectable.
Source: API 510, Pressure Vessel Inspection Code: In-service Inspection, Rating, Repair, and Alteration, Tenth Edition, May 2014, with Addendum May 2017. Global StandardsDefect
An imperfection of a type or magnitude exceeding the acceptance criteria.
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 StandardsDefect
An imperfection, whose type or size, exceeds the applicable acceptance criteria. Source: API 510, Pressure Vessel Inspection Code: In-Service Inspection, Rating, Repair, and Alteration Downstream Segment, Ninth Edition, June 2006. Global StandardsDefect
An imperfection, fault, or flaw in a component of an existing platform. As used in this recommended practice, the term "defect" does not necessarily denote that the platform is not fit-for-purpose. Source: API RP 2SIM, Structural Integrity Management of Fixed Offshore Structures, First Edition, November 2014. Global StandardsDefect
Imperfection of sufficient magnitude or properties to warrant rejection of OCTG based on the specified acceptance criteria. Source: API RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. Global StandardsDefect
Imperfection having sufficient magnitude to warrant rejection of the product based on the criteria defined in this International Standard. 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 StandardsDefect
Imperfection of sufficient magnitude to warrant rejection of the product based on criteria defined in this Standard. Source: API SPEC 5CT, Specification for Casing and Tubing, Upstream Segment, Ninth Edition, July 2011 (Errata September 2012). Global StandardsDefect
Imperfection of sufficient magnitude to warrant rejection of the product based on criteria defined in this International Standard. [ISO 11960:2004, definition 4.1.11]. Source: API SPEC 5DP, Specification for Drill Pipe, First Edition, August 2009. Global StandardsDefect
"Defect" means any characteristic or condition which tends to weaken or reduce the strength of the tool, object or structure of which it is a part, beyond the recognized operating limitations of the tool, object or structure. Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. RegulationsCritical Component
Definition(s)
Critical Component
Any component of the crane assembly devoid of redundancy and/or auxiliary restraining devices whose failure would result in an uncontrolled descent of the load or uncontrolled rotation of the upper-structure. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global StandardsCritical Component
Part having requirements specified in this American National Standard. Source: API SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). Global StandardsCritical Component
Those parts which have specified requirements in this document. Source: API SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). Global StandardsCritical Component
Structural component, failure of which could cause failure of the whole structure, or a significant part of it. NOTE A critical component is part of the primary structure. [ISO 19902:2007, definition 3.12]. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global StandardsCRA
Definition(s)
CRA
Nonferrous-based alloys where any one or the sum of the specified amount of the elements titanium, nickel, cobalt, chromium, and molybdenum exceeds 50 % mass fraction.- NOTE: This definition is different from that in ISO 15156 (NACE MR0175/ISO 15156; see Clause 2).
CRA
Corrosion-resistant alloy. 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 Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. Global Standards Source: API RP 5C5, Recommended Practice on Procedures for Testing Casing and Tubing Connections, Third Edition, July 2003 (Reaffirmed August 2010). Global Standards Source: API RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. 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 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 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 StandardsContractor
Definition(s)
Contractor
Party which carries out all or part of the design, engineering, procurement, construction and commissioning for a project or operation of a facility.- Note: 1 to entry: The principal (3.1.9) can undertake all or part of the duties of the contractor.
Contractor
An individual or organisation performing work for the company, following verbal or written agreement. "Sub-contractor" is synonymous with "contractor" as applied in this document, so includes an individual or company performing work under contract to either the company or another contractor for the benefit of the company. 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 StandardsContractor
'Contractor' means any entity contracted by the operator or owner to perform specific tasks on behalf of the operator or owner. 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. LegislationContractor and contract personnel
Contractor and contract personnel mean anyone, other than an employee of the lessee, performing well control, deepwater well control, or production safety duties for the lessee. Source: Oil and Gas and Sulphur Operations in the Outer Continental Shelf, 30 CFR 250 (2013). RegulationsContractor
"Contractor" means any person and/or employer (see definition of “person” and/or “employer”) who contracts all or any part of oil and gas well drilling. Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. RegulationsContractor
"Contractor" means any person who contracts with another person for the performance of prescribed work. Source: Corporation Commission, Oil and Gas Conservation, Oklahoma Administrative Code 165:10, February 2013. RegulationsContractor
“Contractor” means any third party engaged by an owner to conduct drilling, producing, and other operations. Source: Division of Mineral Resources Management - Oil and Gas, Ohio Administrative Code, Chapter 1501:9, January 2012. RegulationsContractor
Contractor has the meaning given by clause 8. Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. LegislationContractor
For the purposes of this Schedule, if an individual does work at a facility under a contract for services between:- a person (the relevant person); and
- either:
- the individual; or
- the employer of the individual;
Contractor
Contractor 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. RegulationsContractor
An individual or organization performing work for the reporting company, following verbal or written agreement. ‘Sub-contractor’ is synonymous with ‘Contractor’. Source: OGP Report No. 456, Process Safety – Recommended Practice on Key Performance Indicators, International Association of Oil & Gas Producers, November 2011. Global StandardsContractor
Contractor means a person engaged by any person (otherwise than as an employee) to do any work for gain or reward. Source: Health and Safety in Employment Act 1992, Public Act 1992 No 96, New Zealand, as of 1 July 2011. LegislationContractor
Under the HSE Act means a person engaged by any other person (otherwise than as a employee) to do any work for gain or reward. The gain or reward does not need to be monetary; it can be payment in kind or an exchange of services. Nor does the contract need to be in writing. Source: Guidelines for Occupational Diving 2004, Occupational Safety and Health Service, New Zealand, updated October 2010. Regulatory GuidanceContractor
Any person or company that contracts or subcontracts to perform all or any part of oil and gas well production operations. Source: API RP 74, Recommended Practice for Occupational Safety for Onshore Oil and Gas Production Operation, First Edition, October 2001 (March 2007). Global StandardsContractor
Any person or company that contracts to perform all or any part of oil and gas well drilling or servicing. Source: API RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). Global StandardsContractor
The individual, partnership, firm, or corporation that is hired to do a specific job or service, such as a production operator, drilling or well servicing contractor or to provide contract employees to an owner/operator; a contractor is also the individual, partnership, firm, or corporation retained by the owner or operator to perform other work or provide supplies or equipment. The term contractor shall also include subcontractors. Source: API RP 70I, Security for Worldwide Offshore Oil and Natural Gas Operations, Upstream Segment, First Edition, May 2004. Global Standards Source: API RP 70, Security for Offshore Oil and Natural Gas Operations, Downstream Segment, First Edition, March 2003. Global StandardsContractor
The individual, partnership, firm, or corporation retained by the owner or operator to perform work or provide supplies or equipment. The term contractor shall also include subcontractors. Source: API 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 StandardsContractor
“Contractor” means a person who contracts for work to be performed in a workplace, including installations, but does not include a dependent contractor. Source: Nova Scotia Offshore Petroleum Occupational Health & Safety Requirements, Canada-Nova Scotia Offshore Petroleum Board, Canada, December 2000. RegulationsContractor
A person engaged by any person (otherwise than as an employee) to do any work for gain or reward. *Indicates that the definition has been extracted from the HSE Act. 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 GuidanceAannemer (Dutch)
„aannemer”: elke entiteit die door de exploitant of de eigenaar is gecontracteerd om namens hem specifieke taken uit te voeren.Contractant (French)
«contractant», toute entité à laquelle l’exploitant ou le propriétaire confie l’exécution, pour son compte, de tâches spécifiques.Entreprenør (Danish)
»entreprenør«: enhver enhed, der har indgået kontrakt med operatøren eller ejeren om at udføre specifikke opgaver på operatørens eller ejerens vegne.Contratista (Spanish)
«contratista»: toda entidad contratada por el operador o el propietario para desempeñar funciones particulares en nombre del operador o del propietario.Contractant (Romanian)
„contractant” înseamnă orice entitate contractată de operator sau proprietar pentru a îndeplini atribuții specifice în numele operatorului sau proprietarului.Auftragnehmer (German)
„Auftragnehmer“ eine Einrichtung, die vom Betreiber oder Eigentümer beauftragt wurde, bestimmte Aufgaben in seinem Namen auszuführen.εργολάβος (Greek)
«εργολάβος» σημαίνει οποιαδήποτε οντότητα στην οποία ο φορέας εκμετάλλευσης ή ο ιδιοκτήτης αναθέτει με σύμβαση την πραγματοποίηση συγκεκριμένων καθηκόντων για λογαριασμό του φορέα εκμετάλλευσης ή του ιδιοκτήτη.Contraente incaricato (Italian)
«contraente incaricato»: qualsiasi entità alla quale l’operatore o il proprietario affidano l’incarico di svolgere compiti specifici per conto dell’operatore o del proprietario.Wykonawca (Polish)
„wykonawca” oznacza podmiot, któremu operator lub właściciel zlecił wykonanie określonych zadań w imieniu operatora lub właściciela.Contratante (Portuguese)
«Contratante», uma entidade contratada pelo operador ou pelo proprietário para exercer funções específicas em nome destes.Uppdragstagare (Swedish)
uppdragstagare: en enhet som verksamhetsutövaren eller ägaren har anlitat för att utföra vissa specifika uppgifter för verksamhetsutövarens eller ägarens räkning.Urakoitsijalla (Finnish)
’urakoitsijalla’ tarkoitetaan toimijaa, jolle toiminnanharjoittaja tai omistaja on sopimuksella antanut tehtäväksi tiettyjen tehtävien suorittamisen toiminnanharjoittajan tai omistajan puolesta.Pogodbeni izvajalec (Slovenian)
„pogodbeni izvajalec“ pomeni vsak subjekt, ki ga izvajalec ali lastnik najame, da v njegovem imenu opravi določene naloge.Dodávate (Slovak)
„dodávateľ“ je akýkoľvek subjekt, s ktorým má prevádzkovateľ alebo vlastník zmluvný vzťah na účely výkonu konkrétnych úloh v mene prevádzkovateľa alebo vlastníka.Rangovas (Lithuanian)
rangovas – operatoriaus arba savininko vardu konkrečioms užduotims atlikti operatoriaus arba savininko pasamdytas subjektas.vállalkozó (Hungarian)
„vállalkozó”: minden olyan jogalany, amelyet az üzemeltető, illetve a tulajdonos arra szerződtet, hogy a nevében konkrét feladatokat végezzen.Kuntrattur (Maltese)
‘kuntrattur’ tfisser kwalunkwe entità kuntrattata mill-operatur jew mis-sid biex twettaq kompiti speċifiċi f’isem l-operatur jew is-sid.līgumslēdzējs (Latvian)
“līgumslēdzējs” ir jebkura vienība, ar kuru operators vai īpašnieks ir noslēdzis līgumu par konkrētu pienākumu izpildi operatora vai īpašnieka uzdevumā.Töövõtja (Estonian)
„töövõtja”– ettevõtja, kes on sõlminud käitajaga või omanikuga lepingu täita käitaja või omaniku nimel teatavaid ülesandeid.Dodavatelem (Czech)
„dodavatelem“ subjekt, s nímž provozovatel nebo vlastník uzavřel smlouvu na výkon specifických činností jménem provozovatele nebo vlastníka.изпълнител (Bulgarian)
„изпълнител“ означава всеки субект, с който операторът или собственикът е сключил договор за изпълнение на конкретни задачи от името на оператора или на собственика.Combined Operation
Definition(s)
Combined Operation
An operation carried out from one facility with another facility or facilities that materially affects safety of persons or the protection of the environment on any or all of the affected facilities [e.g. a lift boat or self-elevating mobile offshore drilling unit (MODU) working over a fixed platform]. on the basis of relevant available information and informed professional judgment.
Source: API Bulletin 97, Well Construction Interface Document Guidelines, First Edition, December 2013. Global Standards
Combined Operation
'Combined Operation' means an operation carried out from an installation with another installation or installations for purposes related to the other installation(s) which thereby materially affects the risks to the safety of persons or the protection of the environment on any or all of the installations. 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. LegislationCombined Operation
For the purposes of these Regulations, an installation other than a production installation, the operation of which has not been treated as having commenced in accordance with paragraph (2) of regulation 7, shall be treated as engaged in a combined operation with another such installation or other such installations if an activity carried out from, by means of or on, that installation is carried out temporarily for a purpose related to the other installation or installations and could affect the health or safety of persons on the other installation or installations, and the expression “combined operation” shall be construed accordingly. Source: The Offshore Installations (Safety Case) Regulations 2005, UK S.I. 2005/3117, 2005. RegulationsCombined Operation
Also called SIMOPS (Simultaneous Operations). Source: Guidance Notes on Petroleum and Natural Gas (Safety in Offshore Operations) Rules, 2008, Oil Industry Safety Directorate (India), 2012. Regulatory GuidanceCombined Operation
In this regulation, combined operation means an operation where 2 or more installations carry out a temporary operation concurrently at the same location or, in the case of an offshore installation, within 500 metres of each other. Source: Health and Safety in Employment (Petroleum Exploration and Extraction) Regulations 2013, SR 2013/208, New Zealand, as of May 2013. RegulationsCombined Operation
“Combined operation” means more than one activity such as drilling, production, workover operation, construction, rig move, etc., being undertaken at the same place or in the vicinity at the same time. Source: Petroleum and Natural Gas (Safety in Offshore Operations) Rules, 2008, India, 18th June 2008. RegulationsGecombineerde activiteit (Dutch)
„gecombineerde activiteit”: een activiteit die wordt uitgevoerd vanaf een installatie samen met een andere installatie of andere installaties ten behoeve van aan de andere installatie(s) gerelateerde doeleinden, waarbij de risico’s voor de veiligheid van personen of de bescherming van het milieu op één of alle installaties aanzienlijk worden beïnvloed. 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. LegislationOpération combinée (French)
«opération combinée», une opération menée à partir d’une installation conjointement avec une ou plusieurs autres installations à des fins liées à ces autres installations et qui, de ce fait, modifie sensiblement les risques pour la sécurité des personnes ou la protection de l’environnement dans l’une ou dans l’ensemble de ces installations. 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. LegislationKombineret drift (Danish)
»kombineret drift«: en aktivitet, som udføres fra et anlæg sammen med et eller flere andre anlæg, og hvis formål vedrører det eller de andre anlæg, og som derved i betydelig grad påvirker sikkerhedsrisikoen for personer eller beskyttelsen af miljøet på et, flere eller alle anlæg. 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. LegislationOperación combinada (Spanish)
«operación combinada»: una operación realizada a partir de una instalación conjuntamente con una o varias otras instalaciones con fines relativos a estas otras instalaciones y que, por tanto, modifique sensiblemente el riesgo para la seguridad de las personas o la protección del medio ambiente en alguna o en todas las instalaciones. 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. LegislationOperațiune combinată (Romanian)
„operațiune combinată” înseamnă o operațiune efectuată de pe o instalație împreună cu o altă instalație sau alte instalații în scopuri legate de cealaltă (celelalte) instalație (instalații) și care afectează substanțial riscurile pentru siguranța persoanelor sau protecția mediului de pe oricare dintre instalații sau de pe toate instalațiile în cauză. 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. Legislationkombinierter Betrieb (German)
„kombinierter Betrieb“ Betriebsabläufe, die von einer Anlage zusammen mit einer anderen Anlage oder anderen Anlagen für Zwecke durchgeführt werden, die mit der bzw. den anderen Anlagen zusammenhängen, und die sich dadurch erheblich auf die Risiken für die Sicherheit von Personen oder den Schutz der Umwelt auf einer oder allen Anlagen auswirken. 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. Legislationσυνδυασμένες εργασίες (Greek)
«συνδυασμένες εργασίες» σημαίνει τις εργασίες οι οποίες εκτελούνται από εγκατάσταση από κοινού με άλλη εγκατάσταση ή εγκαταστάσεις για σκοπούς συναφείς με την άλλη εγκατάσταση ή εγκαταστάσεις και επηρεάζουν ουσιωδώς τους κινδύνους για την ασφάλεια προσώπων ή την προστασία του περιβάλλοντος σε μια ή σε όλες τις εγκαταστάσεις. 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. LegislationOperazione combinata (Italian)
«operazione combinata»: un’operazione effettuata da un impianto in combinazione con uno o più altri impianti per finalità relative all’altro o agli altri impianti, che incide materialmente sui rischi per la sicurezza delle persone o la tutela dell’ambiente per uno o per tutti gli impianti. 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. LegislationDziałalność połączona (Polish)
„działalność połączona” oznacza działalność prowadzoną z danej instalacji w połączeniu z inną instalacją lub instalacjami do celów związanych z tą inną instalacją (tymi innymi instalacjami), co istotnie wpływa na ryzyko dla bezpieczeństwa ludzi lub ochrony środowiska na którejkolwiek z tych instalacji lub na wszystkich tych instalacjach. 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. LegislationOperação combinada (Portuguese)
«Operação combinada», uma operação realizada a partir de uma instalação em conjunto com outra ou outras instalações, para fins relacionados com essas outras instalações e que, desse modo, afeta materialmente os riscos para a segurança das pessoas ou a proteção do ambiente numa das instalações ou em todas elas. 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. LegislationKombinerad Verksamhet (Swedish)
en verksamhet som utförs från en anläggning tillsammans med en eller flera andra anläggningar för syften som rör den eller de andra anläggningarna och som därmed i betydande grad påverkar säkerhetsriskerna för personer eller miljöskyddet vid en eller samtliga anläggningar. 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. LegislationYhdistetyllä Toiminnalla (FINISH)
tarkoitetaan toimintaa, joka toteutetaan laitteistolla toisen laitteiston tai toisten laitteistojen kanssa tähän toiseen laitteistoon tai näihin toisiin laitteistoihin liittyvistä syistä, jolloin toiminta käytännössä vaikuttaa henkilöiden turvallisuuteen liittyviin riskeihin tai ympäristönsuojeluun missä tahansa näistä laitteistoista tai kaikilla näillä laitteistoilla. 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. LegislationSkupna Dejavnost (Slovenian)
pomeni dejavnost, ki se opravlja z ene naprave skupaj z drugo napravo ali napravami za namene, povezane z drugo napravo ali napravami, zaradi česar bistveno vpliva na tveganje za varnost oseb ali varstvo okolja na eni od teh naprav ali na vseh napravah. 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. Legislationkombinované operácie (slovak)
sú operácie vykonávané zo zariadenia s iným zariadením alebo zariadeniami na účely súvisiace s takýmto iným zariadením (inými zariadeniami), ktorými sa preto podstatne ovplyvňujú riziká bezpečnosti osôb alebo ochrany životného prostredia na niektorom alebo všetkých takýchto zariadeniach. 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. Legislationmišri operacija (Lithuanian)
peracija, kuri atliekama iš įrenginio su kitu įrenginiu ar įrenginiais, siekiant su kitu (-ais) įrenginiu (-ais) susijusių tikslų, ir dėl kurios bet kuriame įrenginyje ar visuose įrenginiuose iš esmės padidėja rizika asmenų saugai arba aplinkos apsaugai. 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. Legislationegyüttes üzemeltetés (hungarian)
valamely létesítményről más létesítménnyel (létesítményekkel) együtt végzett tevékenység ez utóbbi létesítménnyel (létesítményekkel) kapcsolatos céllal oly módon, amelynek következtében a személyi biztonsági vagy a környezetvédelmi kockázat a létesítmények bármelyikén vagy mindegyikén lényegesen megváltozik. 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. Legislationoperazzjoni kombinata (Maltese)
tfisser operazzjoni mwettqa minn installazzjoni ma’ installazzjoni jew installazzjonijiet oħra għal finijiet relatati mal-installazzjoni(jiet) l-oħra li b’hekk taffettwa materjalment ir-riskji għas-sikurezza tal-persuni jew il-ħarsien tal-ambjent fi kwalunkwe waħda mill-installazzjoni jew fl-installazzjonijiet kollha. 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. Legislationapvienota darbība (Latvian)
ir darbība, ko veic no kādas iekārtas ar citu iekārtu vai iekārtām, lai īstenotu ar citu(-ām) iekārtu(-ām) saistītus mērķus, un kas tādējādi būtiski ietekmē cilvēku drošuma vai vides aizsardzības riskus uz kādas no šīm iekārtām vai uz visām šīm iekārtām. 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. Legislationkombineeritud käitamine (Estonian)
protsess, mida teostatakse rajatises koos ühe või mitme muu rajatisega eesmärgil, mis on seotud muu rajatisega ning mis seega mõjutab olulisel määral ühes või mitmes rajatises töötavate isikute ohutuse või rajatise keskkonnakaitse suhtes avalduvaid riske. 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. Legislationkombinovanou činností (Czech)
činnost prováděná ze zařízení spolu s jiným zařízením nebo jinými zařízeními pro účely spojené s jiným zařízením nebo jinými zařízeními, která tak významně ovlivňuje rizika pro bezpečnost osob nebo ochranu životního prostředí na některém nebo na všech těchto zařízeních. 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. Legislationкомбинирана дейност (Bulgarian)
означава дейност, осъществявана от инсталация съвместно с друга инсталация или инсталации за цели, свързани с другата или другите инсталации, която оказва съществено въздействие върху рисковете за безопасността на хората или опазването на околната среда на някоя инсталация или на всички тях. 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. LegislationCasing
Definition(s)
Casing
Pipe installed in the wellbore and usually cemented in place to retain the borehole dimension and seal off hydrocarbon and water-bearing formations.- Surface casing: The outside and first pipe string installed in the wellbore, except for drive pipe or conductor pipe, to seal off surface sands; provide support for blowout prevention equipment and blowout protection; prevent loss of circulation while drilling deeper; and to protect fresh water sources. This casing is normally run to a depth below the base of the fresh water zones and cemented in place.
- Protective (intermediate) casing: A pipe string extending to the wellhead and installed inside of surface casing in wells of such depth without which drilling fluid cannot be balanced because of simultaneous lost circulation and high pressure entry of another zone, or in regions where abnormal pressure gradients are encountered.
- Production casing: The full length pipe string extending between the wellhead and an elevation at or below the producing formation, inside of protective or surface casing, and cemented in place to seal off productive zones and waterbearing formations.
- Liner: The partial length pipe string extending between the bottom of the borehole to an elevation above the bottom of the previous casing string. The liner may perform the same function as protective or production casing in sealing off producing zones and water-bearing formations. Liner may or may not be cemented in place. This term can also refer to a partial length pipe string set inside casing as a patch string.
- Tubing: Pipe installed in the wellbore inside casing strings and extending from the wellhead to a depth below, at, or above a producing, disposal, or injection formation. This is the pipe through which the produced or injected fluids flow.
Casing
Steel pipe used in oil wells to seal off fluids from the bore hole and to prevent the walls of the hole from sloughing off or caving in. Source: API RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. Global StandardsCasing
Pipe intended to line the walls of a drilled well. 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 StandardsCasing
Pipe run from the surface and intended to line the walls of a drilled well. Source: API SPEC 5CT, Specification for Casing and Tubing, Upstream Segment, Ninth Edition, July 2011 (Errata September 2012). Global StandardsCasing
Pipe run from the surface and intended to line the walls of a drilled well. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global StandardsCasing
Pipe extending from the surface and intended to line the walls of a drilled well. Source: API SPEC 11D1, Packers and Bridge Plugs, Upstream Segment, Second Edition, July 2009. Global StandardsCasing
The casing category is included to store information on individual casing-string sections and associated casing failures. The casing category represents full lengths of individual casing sections and does not represent individual items threaded into the casing string, compared with the production/injection string. Sealing elements that are designed to seal off against leakage of hydrocarbons between the various sections of casing string (casing pack-offs) are not included. Source: API STD 689, Collection and Exchange of Reliability and Maintenance Data for Equipment, First Edition, July 2007. Global StandardsCasing
“Casing” means lengths of steel pipe, coupled or connected together to form a continuous conduit in the well bore. Source: Division of Mineral Resources Management - Oil and Gas, Ohio Administrative Code, Chapter 1501:9, January 2012. RegulationsCasing
“Casing” means the pipe installed in the wellbore. Source: Oil and Gas Drilling and Servicing Operations, Michigan Administrative Code R 408, February 8, 2013. RegulationsCalibration System
Definition(s)
Calibration System
A documented system of gauge calibration and control. Source: API RP 7G, Recommended Practice for Drill Stem Design and Operating Limits, Upstream Segment, Sixteenth Edition, August 1998 (Addendum 2: September 2009). Global StandardsCalibration System
Documented system of gauge calibration and control. Source: API SPEC 7-1, Specification for Rotary Drill Stem Elements, First Edition, March 2006 (Addendum April 2011). Global StandardsCalibration
Definition(s)
Calibration
Comparison to a standard of known accuracy and making any needed adjustment(s) . 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 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 StandardsCalibration
Comparison of an instrument with, or the adjustment of an instrument to, a known reference(s) standard that is often traceable to a national institute such as the National Institute of Standards and Technology. Source: API RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. Global StandardsCalibration
Adjustment of instruments to a known basic reference often traceable to the national standards body. NOTE Calibration typically is documented in a log book and by a tag applied to the instrument. Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global StandardsCalibration
Comparison and adjustment to a standard of known accuracy. 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 Source: API SPEC Q1, Specification for Quality Programs for the Petroleum, Petrochemical and Natural Gas Industry, Upstream Segment, Eighth Edition, December 2007 (Addendum December 2010). Global StandardsCalibration
Calibration is the process of confirming the accuracy of the detector readings by comparison with a standard. Source: IMO MSC.1/Circ.1370, Guidelines for the design, construction and testing of fixed hydrocarbon gas detection systems, 22 June 2010, International Maritime Organization. Regulatory GuidanceCalibration
Process used to determine partial factors using structural reliability analysis and target reliabilities. Source: ISO 19900:2013, Petroleum and natural gas industries – General requirements for offshore structures. Global StandardsCalibration
Comparison and adjustment to a standard of known accuracy. Source:ISO/TS 29001:2010(E).Global StandardsBlowout
Definition(s)
Blowout
Uncontrolled flow of well fluids and/or formation fluids from the wellbore to the surface or into lower pressured subsurface zones (underground blowout). Source: API Specification 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, Second Edition, April 2017. Global StandardsBlowout
An uncontrolled flow of well fluids and/or formation fluids from the wellbore or into lower pressured subsurface zones (underground blowout). 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 Source: API STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. Global StandardsBlowout
A blowout, surface or underwater, is an uncontrolled flow of gas, oil or other well fluids into the atmosphere or between the sea floor and the water surface. A blowout occurs when formation pressure exceeds the pressure applied to it by the column of drilling or other fluids in the wellbore. Source: API 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 StandardsBlowout
Point in time at which nitrogen flows through the sample in a fluid loss test. Source: API RP 10B-2, Recommended Practice for Testing Well Cements, First Edition, July 2005 (Reaffirmed: July 2010). Global StandardsBlowout
An uncontrolled flow of well fluids from the wellbore. 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 StandardsBlowout
An uncontrolled flow of well fluids and/or formation fluids from the well bore. Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global StandardsBlowout
“Blowout” means the unintentional and uncontrolled escape of oil or gas, as from a drilling well when high formation pressure is encountered (éruption). Source: Canada Oil and Gas Drilling and Production Regulations, C.R.C., c. 1517, February 2013. RegulationsBlowout
‘Blowout’ means an uncontrolled flow of well fluids and / or formation fluids from the well bore. Source: Guidance Notes on Petroleum and Natural Gas (Safety in Offshore Operations) Rules, 2008, Oil Industry Safety Directorate (India), 2012. Regulatory GuidanceBlowout
A condition when hydrocarbon containment of a wellbore is lost. Oil and gas 'blow wild' at the surface. Source: IADC UBO / MPD Glossary, December 2011. Global StandardsBlowout
Uncontrolled flow of well fluids from the wellbore. 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 StandardsBlow-out
An uncontrolled escape of reservoir fluid. 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 GuidelinesBlow-out
An uncontrolled discharge of gas, liquid, or mixture of gases and liquids from a well to the atmosphere. Source: Petroleum Safety Orders--Drilling and Production, Definitions, California Code of Regulations, 8 CCR § 6505, December 2012. RegulationsBlowout
“Blowout” means an uncontrolled flow of gas, oil, or other well fluids. Source: Oil and Gas Drilling and Servicing Operations, Michigan Administrative Code R 408, February 8, 2013. RegulationsBlowout
An uncontrolled flow of well fluids and/or formation fluids from the wellbore or into lower pressured subsurface zones (underground blowout). Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global StandardsBOP
Definition(s)
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 StandardsBOP
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 StandardsBOP
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