Glossary
Browse the IADC Lexicon alphabetically or by category. Get comprehensive definitions of drilling industry terms.
Displacement Method
Definition(s)
Displacement Method
"Displacement method" means pumping a cement slurry or other material into a well through a drillpipe or other tubular string and recovering displaced fluids on the surface. Source: Alaska Oil and Gas Conservation Commission, Definitions, Alaska Admin. Code tit. 20, § 25.990, December 7, 2012. RegulationsDisposal
Definition(s)
Disposal
“Disposal” means:- the delivery of crude oil to a refinery or a storage place for refining, notwithstanding whether such refinery or storage place is owned by the concessionaire;
- the delivery of natural gas to a gas separation plant, a liquefied natural gas plant, a compressed natural gas plant or a gas storage place for such activities, notwithstanding whether such plant or storage place is owned by the concessionaire;
- appropriation of petroleum for use in any activity of the concessionaire or other persons without sale; or
- transfer of petroleum without consideration.
Disposal
The discharge, deposit, injection, dumping, spilling, leaking, or placing of any hazardous waste into or on any land or water so that such waste or any constituent thereof may enter the environment or be emitted into the air or discharged into any waters, including ground waters. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. RegulationsCrude Oil
Definition(s)
Crude Oil
“Crude oil” means crude mineral oil, asphalt, ozokerite, all kinds of naturally occurring hydrocarbons and bitumens, whether solid, semi-solid or liquid and also includes natural gas liquid. Source: Law of Information Energy, Petroleum Act (No. 4) B.E. 2514 (1989), Thailand, as of June 2013. LegislationCrude Oil
Crude oil is any oil occurring naturally in the earth whether or not treated to render it suitable for transportation and includes crude oil where certain distillate fractions may have been removed from or added to. <Chapter II-2, part A, regulation 3>. Source: IMO Resolution MSC.99(73), amendments to the International Convention for the Safety of Life at Sea, 1974, as amended, 5 December 2000, International Maritime Organization. LegislationCrude Oil
"Crude oil" means petroleum in its natural state before it is refined or otherwise treated but from which water and foreign substances have been extracted. Source: The Oil Industry (Development) Act, 1974, Act No. 47 of 1974, India, as amended as of May 2013. LegislationCrude Oil
“Crude oil” means petroleum in its natural state before it has been refined or otherwise treated but from which water and foreign substances have been extracted. Source: The Petroleum and Natural Gas Rules, 1959 (As amended from time to time), India, as amended as of May 2013. RegulationsCrude Oil
Crude oil is any oil occurring naturally in the earth, whether or not treated to render it suitable for transportation, and includes:- crude oil from which certain distillate fractions may have been removed; and
- crude oil to which certain distillate fractions may have been added.
Committee
Definition(s)
Committee
“Committee” means the Oil and Gas Committee established by section 6; Comité. Source: Canada Oil and Gas Operations Act, R.S.C., 1985, c. O-7, Canada, current to April 29, 2013. LegislationCommittee
“Committee” means the Oil and Gas Committee established pursuant to section 145; Comité. Source: Canada-Nova Scotia Offshore Petroleum Resources Accord Implementation Act, S.C. 1988, c. 28, Canada, current to May 26, 2013. LegislationCommittee
In this section, “Committee” means the Oil and Gas Committee established by the Canada Oil and Gas Operations Act. Source: Canada Petroleum Resources Act, R.S.C. 1985, c. 36 (2nd Supp.), current to April 29, 2013. LegislationCommittee
An occupational health and safety committee comprised of employer and worker representatives whose primary role is to monitor the health, safety and welfare of workers at the workplace. Note: 5 C-NAAIA 152; Section 37 of the Newfoundland and Labrador Occupational Health and Safety Act; C-NLOPB Other Requirements Respecting Occupational Health & Safety and OSH (NS) Element 1, Part 5. Source: 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 GuidanceCommittee
"Committee" means the Marine Environment Protection Committee of the Organization. Source: International Convention on the Control of Harmful Anti-fouling Systems on Ships, 2001. Legislation Source: International Convention for the Control and Management of Ships’ Ballast Water and Sediments, 2004. LegislationCommittee
“Committee” means the Petroleum Committee. Source: Law of Information Energy, Petroleum Act B.E. 2514 (1971), Thailand, as of June 2013. LegislationCommittee
“Committee” means a joint occupational health and safety committee. Source: Nova Scotia Offshore Petroleum Occupational Health & Safety Requirements, Canada-Nova Scotia Offshore Petroleum Board, Canada, December 2000. RegulationsCommittee
“Committee” has the same meaning as in section 2 of the Occupational Health and Safety Act, S.N.S. 1985 C.3, as amended. Source: Nova Scotia Offshore Petroleum Occupational Health & Safety Requirements, Canada-Nova Scotia Offshore Petroleum Board, Canada, December 2000. RegulationsCommittee
Technical committee soil movement. Source: Mining Act of the Netherlands, Netherlands, 2003 (as amended up to 2012). LegislationSale
Definition(s)
Sale
“Sale” includes exchange and transfer with consideration. Source: Law of Information Energy, Petroleum Act B.E. 2514 (1971), Thailand, as of June 2013. LegislationSale
“Sale” includes offer for sale, expose for sale and distribute. 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. RegulationsDevelopment Well
Definition(s)
Development Well
"Development well" means a well drilled to a known productive pool. Source: Alaska Oil and Gas Conservation Commission, Definitions, Alaska Admin. Code tit. 20, § 25.990, December 7, 2012. RegulationsDevelopment Well
Development well In these Regulations, “delineation well”, “development well” and “exploratory well” have the same meaning as in subsection 101(1) of the Canada Petroleum Resources Act. Source: Canada Oil and Gas Drilling and Production Regulations, SOR/2009-315, February 2013. RegulationsDevelopment Well
“Development well” means a well that is so located in relation to another well penetrating an accumulation of petroleum that it is considered to be a well or part of a well drilled for the purpose of production or observation or for the injection or disposal of fluid into or from the accumulation. 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: Canada Petroleum Resources Act, R.S.C. 1985, c. 36 (2nd Supp.), current to April 29, 2013. Legislation Source: Canada-Nova Scotia Offshore Petroleum Resources Accord Implementation Act, S.C. 1988, c. 28, Canada, current to May 26, 2013. LegislationDevelopment Well
In these Regulations, “delineation well”, “development well” and “exploratory well” have the same meaning as in subsection 122(1) of the Act. Source: Nova Scotia Offshore Petroleum Drilling and Production Regulations, SOR/2009-317, Canada, current to May 31, 2012. RegulationsDay
Definition(s)
Day
"Day" means a calendar day. Source: Alaska Oil and Gas Conservation Commission, Definitions, Alaska Admin. Code tit. 20, § 25.990, December 7, 2012. RegulationsDay
"Day" means a period of 24 consecutive hours. For reporting purposes, it shall be from 7:00 a.m. to 7:00 a.m. the following day. Source: Corporation Commission, Oil and Gas Conservation, Oklahoma Administrative Code 165:10, February 2013. RegulationsDay
DAY shall mean a period of twenty-four (24) consecutive hours. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. RegulationsConductor
Definition(s)
Conductor
Additional casing run below structural casing (i.e. for shallow flow risks). Normal clearance casing OD in.: 26. Tight clearance casing OD in.: 28 or 26. NOTE These are examples only. Each well can have variations in number of casing strings and sizes. Naming conventions can vary. The heavy-wall surface casing designs may allow 13 5/8 in. to be run as a liner and not tied back. Source: API RP 96, Deepwater Well Design and Construction, First Edition, March 2013. Global StandardsConductor
tubular pipe extending upward from or beneath the sea floor containing pipes that extend into the petroleum reservoir Source: ISO 19900:2013, Petroleum and natural gas industries – General requirements for offshore structures. Global StandardsConductor
Conductor— (a) means material used or placed in position for the conveyance of electricity; but (b) does not include the wire of an electric fence. Source: Health and Safety in Employment (Mining—Underground) Regulations 1999, SR 1999/331, New Zealand, as of 8 October 1999. RegulationsCompletion Operation
Definition(s)
Completion Operation
"Completion operation" means work performed in a well after the casing and cementing of the wellbore; "completion operation" includes plugging, perforating, stimulating, testing, and equipping the well to produce or inject fluids. Source: Alaska Oil and Gas Conservation Commission, Definitions, Alaska Admin. Code tit. 20, § 25.990, December 7, 2012. RegulationsComplete
Definition(s)
Complete
"Complete" means to equip and condition a well as an oil, gas, or service well so that it is capable of producing or injecting fluids; in the case of a well branch in a previously completed well, "complete" means to equip and condition a well branch so that it is capable of contributing to the well's production or injection of fluids. Source: Alaska Oil and Gas Conservation Commission, Definitions, Alaska Admin. Code tit. 20, § 25.990, December 7, 2012. RegulationsBottom-hole Location
Definition(s)
Bottom-hole Location
"Bottom-hole location" means the subsurface point at the greatest measured penetration of a well or a well branch. Source: Alaska Oil and Gas Conservation Commission, Definitions, Alaska Admin. Code tit. 20, § 25.990, December 7, 2012. RegulationsCasing Stub
Definition(s)
Casing Stub
"Casing stub" means the remnant of a casing string when the upper portion of the casing has been cut and recovered. Source: Alaska Oil and Gas Conservation Commission, Definitions, Alaska Admin. Code tit. 20, § 25.990, December 7, 2012. RegulationsAPI RP
Definition(s)
Resolución Número 40687
Recommended Practices of American Petroleum Institute. Prácticas recomendadas por ellnstituto Americana del Petróleo.
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