Model

Model

Definition(s)


Model

Tool design with unique components and operating characteristics, which differentiate it from other tool designs of the same type.

Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards

Model

SSSV equipment with unique components and operating characteristics which differentiate it from other SSSV equipment of the same type. NOTE The same model can have any of a variety of end connections. Source: API SPEC 14A, Specification for Subsurface Safety Valve Equipment, Eleventh Edition, October 2005 (Reaffirmed June 2012). Global Standards

Model

A model is defined as a physical, mathematical, or otherwise logical representation of a system, entity, phenomenon, or process [81]. Source: API TR 1PER15K-1, Protocol for Verification and Validation of High-pressure High-temperature Equipment, First Edition, March 2013. Global Standards  

Model

Approximation, representation, or idealization of selected aspects of the structure, behavior, operation, or other characteristics of a real-world process, concept, or system Sample Usage: To assess risk for over 400 events, analysts created a model based on only the most important factors. Source: DHS Risk Lexicon, U.S. Department of Homeland Security, 2010 Edition. September 2010 Regulatory Guidance
May

May

Definition(s)


May

“May” is used to state that a provision is optional. Source: API RP 17L2, Recommended Practice for Flexible Pipe Ancillary Equipment, First Edition, March 2013. Global Standards

May

The term “may” is used to express permission or a provision that is optional. Source: API RP 96, Deepwater Well Design and Construction, First Edition, March 2013. Global Standards

May

MAY is used to indicate that a provision is OPTIONAL. 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 5DP, Specification for Drill Pipe, First Edition, August 2009. Global Standards

May

Indicates a permission, or an option, which is permitted as part of conformance with the standard. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global Standards

May

Verbal form used to indicate a course of action permissible within the limits of this NORSOK standard. Source: NORSOK D-002, Well intervention equipment, Rev. 2, June 2013. Global Standards Source:  NORSOK D-010, Well integrity in drilling and well operations, Rev. 3, August 2004. Global Standards

May

May indicates a course of action that is permissible within the limits of the standard (a permission). Source: NORSOK D-007, Well Testing Systems, Rev. 1, January 1996. Global Standards

May

verbal form used to indicate a course of action permissible within the limits of this guideline. 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

May

Verbal form used to indicate a course of action permissible within the limits of the OSS. Source: Verification of Lifting Appliances for the Oil and Gas Industry, DNV-OSS-308, October 2010, Det Norske Veritas AS, Global Standards
Length (L)

Length (L)

Definition(s)


Length (L)

Length (L) means 96% of the total length on a waterline at 85% of the least moulded depth measured from the top of the keel, or the length from the foreside of the stem to the axis of the rudder stock on that waterline, if that be greater. In ships designed with a rake of keel, the waterline on which this length is measured shall be parallel to the designed waterline. The length (L) shall be measured in metres. Source: Resolution MEPC.119(52), 2004 amendments to the International Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in Bulk (IBC Code), 15 October 2004. Regulatory guidance, International Maritime Organization 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  

Length (L)

Length (L) is the length as defined in the International Convention on Load Lines in force. <Chapter II-1, regulation 2>. 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  

Length (L)

“Length (L)” means 96% of the total length on a waterline of 85% at the least moulded depth measured from the top of the keel, or the length from the foreside of the stem to the axis of the rudder stock on that waterline, if that be greater. In ships designed with a rake of keel, the waterline on which this length is measured should be parallel to the designed waterline. The length (L) should be measured in metres. Source: IMO Resolution MSC.266(84), Code of Safety for Special Purpose Ships, 2008 (2008 SPS Code), 13 May 2008, International Maritime Organization. Regulatory Guidance  
Length

Length

Definition(s)


Length (or Joint)

Complete section of pipe. Source: API RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. Global Standards  

Length

Piece of pipe that may be plain-end, threaded, or threaded and coupled, that is in accordance with the range requirements in Table C.27 or Table E.27 of this Standard. Source: API SPEC 5CT, Specification for Casing and Tubing, Upstream Segment, Ninth Edition, July 2011 (Errata September 2012). Global Standards  

Length

“Length” means the length as defined in the International Convention on Load Lines, 1966, as modified by the Protocol of 1988 relating thereto, or any successor Convention. Source: International Convention on the Control of Harmful Anti-fouling Systems on Ships,2001. Legislation  

Length

Length (L) has the same meaning as defined in regulation 3 of the 1988 LL Protocol. Source: IMO Resolution A.1023(26), Code for the Construction and Equipment of Mobile Offshore Drilling Units (2009 MODU Code), 2009. Global Standards  

Length

Length of a ship means its length overall. <Chapter V, regulation 2>. Source: Resolution MSC.142(77), amendments to the International Convention for the Safety of Life at Sea, 1974, as amended, 5 June 2003, International Maritime Organization, Legislation  

Length

"Length" means the length as defined in the International Convention on Load Lines, 1966, as modified by the Protocol of 1988 relating thereto, or any successor convention. Source: Resolution MEPC.195(61), 2010 Guidelines for Survey and Certification of Anti-fouling Systemson Ships, 1 October 2010, International Maritime Organization, Regulatory Guidance  

Length

Length (a) The length (L) shall be taken as 96% of the total length on a waterline at 85% of the least moulded depth measured from the top of the keel, or as the length from the fore side of the stem to the axis of the rudder stock on that waterline, if that be greater. (b) For ships without a rudder stock, the length (L) is to be taken as 96% of the waterline at 85% of the least moulded depth. (c) Where the stem contour is concave above the waterline at 85% of the least moulded depth, both the forward terminal of the total length and the fore-side of the stem respectively shall be taken at the vertical projection to that waterline of the aftermost point of the stem contour (above that waterline) (see figure 3.1). figure 3.1 (d) In ships designed with a rake of keel the waterline on which this length is measured shall be parallel to the designed waterline at 85% of the least moulded depth Dmin, found by drawing a line parallel to the keel line of the vessel (including skeg) tangent to the moulded sheer line of the freeboard deck. The least moulded depth is the vertical distance measured from the top of the keel to the top of the freeboard deck beam at side at the point of tangency (see figure 3.2). figure 3.2 <Chapter I, regulation 3>. Source: IMO Resolution MSC.143(77), amendments to Annex B to the 1988 Load Lines Protocol, 5 June 2003, International Maritime Organization. Legislation  

Length

Length means the length overall. Source: IMO Resolution MSC.253(83), Recommendation on Performance Standards for Navigation Lights, Navigation Light Controllers and associated equipment, 8 October 2007, International Maritime Organization. Regulatory Guidance  

Length

Length is 96% of the total length on a waterline at 85% of the least moulded depth measured from the top of the keel, or the length from the fore-side of the stem to the axis of the rudder stock on that waterline, if that be greater. In ships designed with a rake of keel the waterline on which this is measured shall be parallel to the designed waterline. <Chapter III, Part A, regulation 3>. 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
Label 2

Label 2

Definition(s)


Label 2

Dimensionless designation for the mass per unit length or wall thickness, used when ordering OCTG. Source: API RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. Global Standards  

Label 2

Dimensionless designation for the linear density that may be used when ordering pipe. NOTE Linear density is sometimes designated by the deprecated term “mass per unit length”. 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  

Label 2

Dimensionless designation for the mass per unit length or wall thickness that may be used when ordering pipe. Source: API SPEC 5CT, Specification for Casing and Tubing, Upstream Segment, Ninth Edition, July 2011 (Errata September 2012). Global Standards Source: API TR 5C3, Technical Report on Equations and Calculations for Casing, Tubing, and Line Pipe Used as Casing or Tubing; and Performance Properties Tables for Casing and Tubing, Upstream Segment, First Edition, December 2008. Global Standards  

Label 2

Dimensionless designation for the drill-pipe-body mass per unit length that may be used when ordering. Source: API SPEC 5DP, Specification for Drill Pipe, First Edition, August 2009. Global Standards
Label 1

Label 1

Definition(s)


Label 1

Dimensionless designation for the size or specified outside diameter, used when ordering OCTG. Source: API RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. Global Standards  

Label 1

Dimensionless designation for the size or specified outside diameter that may be used when ordering pipe. 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  

Label 1

Dimensionless designation for the drill-pipe-body size that may be used when ordering. Source: API SPEC 5DP, Specification for Drill Pipe, First Edition, August 2009. Global Standards  

Label 1

Dimensionless designation for the size or specified outside diameter that may be used when ordering pipe. Source: API TR 5C3, Technical Report on Equations and Calculations for Casing, Tubing, and Line Pipe Used as Casing or Tubing; and Performance Properties Tables for Casing and Tubing, Upstream Segment, First Edition, December 2008. Global Standards
Kelly

Kelly

Definition(s)


Kelly

The square or hexagonal shaped steel pipe connecting the swivel to the drill string. The kelly moves through the rotary table and transmits torque to the drill string. 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  

Kelly

Square- or hexagonal-shaped steel pipe connecting the swivel to the drill pipe. NOTE The kelly moves through the rotary table and transmits torque to the drill stem. Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards  

Kelly

Square or hexagonally shaped steel pipe connecting the swivel to the drill pipe that moves through the rotary table and transmits torque to the drill stem. Source: API SPEC 7-1, Specification for Rotary Drill Stem Elements, First Edition, March 2006 (Addendum April 2011). Global Standards  

Kelly

The square, hexagonal or other shaped steel pipe connecting the swivel to the drill pipe. The kelly moves through the kelly bushings, rotary table and rotates the drill string. 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  

Kelly

The uppermost component of the drill string; the kelly is an extra-heavy joint of pipe with flat or fluted sides that is free to move vertically through a “kelly bushing” in the rotary table; the kelly bushing imparts torque to the kelly and thereby the drill string is rotated. Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global Standards  

Kelly

The uppermost component of the drill string; the kelly is an extra-heavy joint of pipe with flat or fluted sides that is free to move vertically through a “kelly bushing” in the rotary table; the kelly bushing imparts torque to the kelly and thereby the drill string is rotated. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards  

Kelly

“Kelly” means a 3 or more sided shaped steel pipe connecting the swivel to the drill pipe. The kelly moves through the kelly bushing and the rotary table and transmits torque to the drill string. [Mich. Admin. Code R 408 (2013)]. Source: Oil and Gas Drilling and Servicing Operations, Michigan Administrative Code R 408, February 8, 2013. Regulations  

Kelly

The square or other shaped steel pipe connecting the swivel to the drill pipe. The kelly moves through the rotary table and transmits torque to the drill string. Source: Petroleum Safety Orders--Drilling and Production, Definitions, California Code of Regulations, 8 CCR § 6505, December 2012. Regulations  
Interflow

Interflow

Definition(s)


Interflow

The control fluid lost (vented) during the travel of the piston in a control valve during the interval when the control valve’s inlet and vent points are temporarily interconnected. 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
ID

ID

Definition(s)


ID

Inside Diameter. Source: API Specification 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, Second 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 SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards Source: API RP 17B, Recommended Practice for Flexible Pipe, Fourth Edition, July 2008. 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 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 11D1, Packers and Bridge Plugs, Upstream Segment, Second Edition, July 2009. Global Standards Source: API SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). Global Standards Source: API STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 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: Oil & Gas UK, Guidelines on subsea BOP systems, Issue 1, July 2012, Global Standards

ID

Internal Diameter. 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 RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. Global Standards Source: API SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). Global Standards Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. 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: NORSOK D-010, Well integrity in drilling and well operations, Rev. 3, August 2004. Global Standards  

I.D.

Inside diameter. Source: API SPEC 16RCD, Specification for Drill Through Equipment—Rotating Control Devices, Upstream Segment, First Edition, February 2005. Global Standards  

ID

Inside diameter (mathematical symbol: d). Source: API SPEC 17E, Specification for Subsea Umbilicals, Upstream Segment, Fourth Edition, October 2010. Global Standards  

ID

Inside diameter of a pipe. Calculated by the difference between the nominal (outside) pipe diameter and twice the wall thickness (w.t.). Source: IADC UBO / MPD Glossary, December 2011. Global Standards  

ID

Relative density.

Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global Standards
Hydrostatic Pressure

Hydrostatic Pressure

Definition(s)


Hydrostatic Pressure (hydrostatic head)

The pressure that exists at any point in the well bore due to the weight of the vertical column of fluid above that point. Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global Standards  

Hydrostatic Pressure (hydrostatic head)

The pressure that exists at any point in the wellbore due to the weight of the vertical column of fluid above that point. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards  

Hydrostatic Pressure

Maximum external pressure of ambient ocean environment (maximum water depth) that equipment is designed to contain and/or control. 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  

Hydrostatic Pressure

See Hydrostatic head. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
HSE

HSE

Definition(s)


HSE

Health and Safety Executive. Source:  DNVGL-RP-G108, Cyber security in the oil and gas industry based on IEC 62443, DNV GL, September 2017. 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 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 Source: Commercial Diving Projects Offshore, Diving at Work Regulations 1997, Approved Code of Practice (UK HSE L103), First Edition, 1998. Regulatory Guidance Source: NOGEPA Guideline 14, Helideck Operations and Procedures Manual, Netherlands, Version 2, December 2011. Global Standards Source: NORSOK D-010, Well integrity in drilling and well operations, Rev. 3, August 2004. Global Standards Source: Oil & Gas UK, Guidelines on subsea BOP systems, Issue 1, July 2012, Global Standards 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  

HSE

Health, Safety and Environment. Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards Source: API  Bulletin 97, Well Construction Interface Document Guidelines, First Edition, December 2013. Global Standards Source: Deep Water Well Control  Guidlines. IADC Guidelines 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: 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 Source: 117 OLF, Norwegian Oil and Gas Association recommended guidelines for Well Integrity, No. 117, Revision No. 4, June 2011. Global Standards 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  

HSE

United Kingdom Health and Safety Executive. Source: NOPSEMA Guidance Note: ALARP, N-04300-GN0166, Australia, Revision 4, December 2012. Regulatory Guidance

HSE

Health and Safety Executive, UK. 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  

HSE

Health, safety and environmental. Source: ISO 15544:2000, Petroleum and natural gas industries – Offshore production installations – Requirements and guidelines for emergency. Global Standards  

HSE

Health, safety, environment. Source: ISO 20815:2008, Petroleum, petrochemical and natural gas industries – Production assurance and reliability management. Global Standards

HRC

HRC

Definition(s)


HRC

Rockwell hardness C scale. Source: API RP 17A Addendum 1, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, December 2010. Global Standards Source: API SPEC 5CT, Specification for Casing and Tubing, Upstream Segment, Ninth Edition, July 2011 (Errata September 2012). 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 Standards  

HRC

Rockwell hardness scale C. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards  

HRC

Hardness Rockwell C. Source: API SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). Global Standards
ESD

ESD

Definition(s)


ESD

Emergency Shutdown System. Source: API STD 521, Pressure-relieving and Depressuring Systems, Sixth Edition, January 2014. Global Standards

ESD

Emergency shutdown. Source:  DNVGL-RP-G108, Cyber security in the oil and gas industry based on IEC 62443, DNV GL, September 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: ISO 17776:2016, Petroleum and natural gas industries — Offshore production installations — Major accident hazard management during the design of new installations, Second Edition, December 2016. Global Standards Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards

ESD

Shut down of the facility under emergency conditions during which the internal pressure in a production riser can increase above the normal operating pressure. Source: API Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. Global Standards

ESD

Emergency shut-down. Source: API Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. Global Standards 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 Source: API RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. Global Standards Source: API SPEC 17F, Specification for Subsea Production Control Systems, Second Edition, December 2006 (Reaffirmed April 2011). Global Standards Source: 117 OLF, Norwegian Oil and Gas Association recommended guidelines for Well Integrity, No. 117, Revision No. 4, June 2011. 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 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: ISO 15544:2000, Petroleum and natural gas industries – Offshore production installations – Requirements and guidelines for emergency. Global Standards 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: ISO 20815:2008, Petroleum, petrochemical and natural gas industries – Production assurance and reliability management. Global Standards Source: NOPSEMA Guidance Note: Control Measures and Performance Standards, N-04300 GN0271, Australia, Revision 3, December 2011. Regulatory Guidance 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: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. Global Standards  

ESD

Control actions undertaken to shut down equipment or processes in response to a hazardous situation. 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  

ESD

Emergency shutdown system. 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: NORSOK D-001, Drilling facilities, Rev. 3, December 2012. Global Standards
Equipment

Equipment

Definition(s)


Equipment

Components or assemblies to which this specification is applicable. 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

Equipment

Any item or assembled equipment to which this International Standard is applicable. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards  

Equipment

Any single completed unit that can be used for its intended purpose without further processing or assembly. Source: API SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). Global Standards  

Equipment

Any single completed unit that can be used for its intended purpose without further processing or assembly (e.g., a valve, choke, crone, tee, spool, etc.). Source: API SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). Global Standards  

Equipment

“Equipment” means any plant, machinery, apparatus or system used, formerly used or intended to be used (whether on or from an offshore installation or on or from an attendant vessel) in the assembly, reconstruction, repair, dismantlement, operation, movement or inspection of an offshore installation or the inspection of the sea bed under or near an offshore installation. Source: The Offshore Installations (Inspectors and Casualties) Regulations 1973, UK S.I. 1973/1842, 1973. Regulations  

Equipment

Equipment as mentioned in the first subsection, includes personnel winches, personnel baskets and the like. Source: Guidelines Regarding the Facilities Regulations, Norway, updated December 2012. Regulatory Guidance  

Equipment

Equipment as mentioned in the second subsection, includes medication and first aid equipment, stretchers and medical rescue equipment. Source: Guidelines Regarding the Facilities Regulations, Norway, updated December 2012. Regulatory Guidance
Emergency

Emergency

Definition(s)


Emergency

“Emergency” means an exceptional situation resulting from an accident or incident (urgence). 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  

Emergency

Hazardous event which cannot be handled by normal measures and requires immediate action to limit its extent, duration or consequences. Source: ISO 15544:2000, Petroleum and natural gas industries – Offshore production installations – Requirements and guidelines for emergency. Global Standards

Emergency

Emergency, in relation to a facility, means an urgent situation that presents, or may present, a risk of death or serious injury to persons at the facility. 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  

Emergency

An emergency includes any unexpected event of whatever nature with the potential to cause harm and to require the evacuation, escape and rescue of one or more persons from the 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 Guidance  

Emergency

“Emergency” means an emergency of a kind which can require evacuation, escape or rescue. Source: The Offshore Installations (Prevention of Fire and Explosion, and Emergency Response) Regulations 1995, S.I. 1995/743, 1995. Regulations  

Emergency

an unforeseen combination of circumstances or the resulting state that calls for immediate action NOTE: Action to safeguard the health and the safety of persons. 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
Electrically (Armed) Before Ballistically Armed (EBBA)

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 Standards
EBBA

EBBA

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 Standards
Drill Pipe

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 Standards  

Drill 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 Standards  

Drill 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 Standards  

Drill 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 Standards  

Drill pipe

Drill-pipe body with weld-on tool joints. Source: API SPEC 5DP, Specification for Drill Pipe, First Edition, August 2009. Global Standards  

Drill 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. Regulations  
Drill Floor Substructure

Drill 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 Standards  

Drill 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 Standards
Downstream

Downstream

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 Standards  

Downstream

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 Standards

Downstream

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 Standards  

Downstream

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 Standards  
Discrete Hydraulic Control System

Discrete 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 Standards
Diagnostic Testing

Diagnostic 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 Standards  
Design Safety Factor

Design 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 Standards
Defect

Defect

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 Standards  

Defect

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 Standards

Defect

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 Standards  

Defect

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 Standards  

Defect

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 Standards  

Defect

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 Standards  

Defect

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 Standards  

Defect

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 Standards  

Defect

"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. Regulations
Critical Component

Critical 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 Standards  

Critical 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 Standards  

Critical 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 Standards  

Critical 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 Standards
CRA

CRA

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).
Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global Standards

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 Standards
Contractor

Contractor

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.
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  

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 Standards  

Contractor

'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. Legislation  

 

Contractor 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). Regulations

 

Contractor

"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. Regulations  

Contractor

"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. Regulations  

Contractor

“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. Regulations  

Contractor

Contractor has the meaning given by clause 8. Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. Legislation  

Contractor

For the purposes of this Schedule, if an individual does work at a facility under a contract for services between:
  1. a person (the relevant person); and
  2. either:
    1. the individual; or
    2. the employer of the individual;
the individual is taken to be a contractor of the relevant person. Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. Legislation  

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. Regulations  

Contractor

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 Standards  

Contractor

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. Legislation  

Contractor

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 Guidance  

Contractor

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 Standards

Contractor

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 Standards  

Contractor

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 Standards  

Contractor

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 Standards  

Contractor

“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. Regulations  

Contractor

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 Guidance  

Aannemer (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.
Casing

Casing

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.
  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
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  

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 Standards  

Casing

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 Standards  

Casing

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 Standards  

Casing

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 Standards  

Casing

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 Standards  

Casing

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 Standards  

Casing

“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. Regulations  

Casing

“Casing” means the pipe installed in the wellbore. Source: Oil and Gas Drilling and Servicing Operations, Michigan Administrative Code R 408, February 8, 2013. Regulations    
Calibration System

Calibration 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 Standards  

Calibration 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 Standards
Calibration

Calibration

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 Standards

Calibration

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 Standards  

Calibration

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 Standards  

Calibration

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 Standards  

Calibration

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 Guidance  

Calibration

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 Standards  

Calibration

Comparison and adjustment to a standard of known accuracy. Source:ISO/TS 29001:2010(E).Global Standards