A

A

Definition(s)

A

Shackle jaw width.

Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards

A

Cross-sectional area. Source: API Technical Report 17TR7, Verification and Validation of Subsea Connectors, First Edition, April 2017. Global Standards  

A

Spudcan maximum cross sectional area.

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

A

Activity. Source: NOGEPA Industrial Guideline No. 16, Working with Naturally Occurring Radioactive Materials (NORM), Netherlands, Version 1, January 2009. Global Standards
A 60 Bulkhead or Deck

A 60 Bulkhead or Deck

Definition(s)

A 60 bulkhead or deck

A 60 bulkhead or deck means an A class bulkhead or deck that
  1. Is insulated with approved insulation, bulkhead panels, or deck covering;
  2. If subjected to the standard fire test for 60 minutes, has an average temperature rise on the unexposed side of the insulated bulkhead or deck of less than 139 °C (250 °F) above the temperature before the standard fire test and has a temperature rise at any point on the unexposed surface, including any joint, of less than 180 °C (325 °F) above the temperature before the standard fire test.
Source: Mobile Offshore Drilling Units, 46 CFR 107-109 (2013). Regulations
A Class Bulkhead or Deck

A Class Bulkhead or Deck

Definition(s)

A class bulkhead or deck

A class bulkhead or deck means a bulkhead or deck that.
  1. Is made of steel or other equivalent material; and
  2. Prevents the passage of flame and smoke for 60 minutes if subjected to the standard fire test.
Source: Mobile Offshore Drilling Units, 46 CFR 107-109 (2013). Regulations
A-annulus

A-annulus

Definition(s)

A-annulus

Designation of the annulus between production tubing and production casing. [SOURCE: API RP 90, modified]. Source: ISO 16530-1:2017, Petroleum and natural gas industries - Well integrity – Part 1: Life cycle governance, First Edition, March 2017. Global Standards  

“A” annulus

Annulus between the production tubing and production casing. Source: API RP 96, Deepwater Well Design and Construction, First Edition, March 2013. Global Standards  

“A” annulus

The annulus designation between the production tubing and production casing. Source: API RP 90, Annular Casing Pressure Management for Offshore Wells, Upstream Segment. First Edition, August 2006. Global Standards

A-annulus

Annuli between the tubing and the production casing. Source: NORSOK D-010, Well integrity in drilling and well operations, Rev. 3, August 2004. Global Standards
A-Scan

A-Scan

Definition(s)

A-Scan

Data presentation utilizing a horizontal base line that indicates distance, or time, and a vertical deflection from the base line that indicates amplitude. Source: API RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. Global Standards  

A-Scan

Ultrasonic instrument display where distance is represented on the horizontal axis and signal strength on the vertical axis. Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards
A-Scan Display

A-Scan Display

Definition(s)

A-Scan Display

Ultrasonic instrument display in which the received signal is displayed as a vertical height or “pip” from the horizontal-sweep time trace, while the horizontal distance between two signals represents the material distance for time of travel between the two conditions causing the signals. Source: API SPEC 7-1, Specification for Rotary Drill Stem Elements, First Edition, March 2006 (Addendum April 2011). Global Standards  
A.D.A.S.

A.D.A.S.

Definition(s)

A.D.A.S. The Australian Diver Accreditation Scheme. Source: Guidelines for Occupational Diving 2004, Occupational Safety and Health Service, New Zealand, updated October 2010. Regulatory Guidance
A.S.M.E.

A.S.M.E.

Definition(s)

A.S.M.E.

American Society of Mechanical Engineers. Source: Petroleum Safety Orders--Drilling and Production, Definitions, California Code of Regulations, 8 CCR § 6505, December 2012. Regulations

 

A.S.T.M.

A.S.T.M.

Definition(s)

A.S.T.M.

American Society for Testing Materials. Source: Petroleum Safety Orders--Drilling and Production, Definitions, California Code of Regulations, 8 CCR § 6505, December 2012. Regulations

 

Aa

Aa

Definition(s)

Aa

Area ratio.

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

AAA

Definition(s)

AAA

Authentication, authorization and accounting. Source:  DNVGL-RP-G108, Cyber security in the oil and gas industry based on IEC 62443, DNV GL, September 2017. Global Standards
AAV

AAV

Definition(s)

AAV

Annulus access valve. Source: API RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. Global Standards
AB

AB

Definition(s)

AB

Accommodation Block. 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
Abandon

Abandon

Definition(s)

Abandon

Abandon, in relation to a well, means to seal the well in order to render it permanently inoperative, and abandonment has a corresponding meaning. Source: Health and Safety in Employment (Petroleum Exploration and Extraction) Regulations 2013, SR 2013/208, New Zealand, as of May 2013. Regulations

Abandon

"Abandon" means to plug a well in accordance with 20 AAC 25.112 and without the commission's approval of well suspension under 20 AAC 25.110. Source: Alaska Oil and Gas Conservation Commission, Definitions, Alaska Admin. Code tit. 20, § 25.990, December 7, 2012. Regulations

Abandoned

Abandoned

Definition(s)

Abandoned

“Abandoned”, in relation to a well, means a well or part of a well that has been permanently plugged (abandonné). Source: Canada Oil and Gas Drilling and Production Regulations, SOR/2009-315, February 2013. Regulations Source: Nova Scotia Offshore Petroleum Drilling and Production Regulations, SOR/2009-317, Canada, current to May 31, 2012. Regulations 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
Abandoned-in-place

Abandoned-in-place

Definition(s)

Abandoned-in-place

Piping system, circuit or contiguous sections thereof meeting all of the following: has been decommissioned with no intention for future use; has been completely de-inventoried/purged of hydrocarbon/chemicals; and is physically disconnected (e.g. air-gapped) from all energy sources and/or other piping/equipment.

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
Abandonment

Abandonment

Definition(s)

Abandonment

Abandonment is characterised by the severance of ties between the shipowner and the seafarer. Abandonment occurs when the shipowner fails to fulfil certain fundamental obligations to the seafarer relating to timely repatriation and payment of outstanding remuneration and to provision of the basic necessities of life, inter alia, adequate food, accommodation and medical care. Abandonment will have occurred when the master of the ship has been left without any financial means in respect of ship operation. Source: IMO Resolution A.930(22), Guidelines on Provision of Financial Security in Case of Abandonment of Seafarers, 17 December 2001, International Maritime Organization. Regulatory Guidance  

Abandonment

Act of personnel onboard leaving an installation in an emergency. 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  

Abandonment

Abandon, in relation to a well, means to seal the well in order to render it permanently inoperative, and abandonment has a corresponding meaning. Source: Health and Safety in Employment (Petroleum Exploration and Extraction) Regulations 2013, SR 2013/208, New Zealand, as of May 2013. Regulations
Abate

Abate

Definition(s)

Abate

“Abate” means to investigate, contain, remove or mitigate water pollution. Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. Regulations      
Abatement

Abatement

Definition(s)

Abatement

“Abatement” means the investigation, containment, removal or other mitigation of water pollution. Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. Regulations      
Abatement Plan

Abatement Plan

Definition(s)

Abatement Plan

“Abatement plan” means a description of operational, monitoring, contingency and closure requirements and conditions for water pollution’s prevention, investigation and abatement. Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. Regulations    
Ability

Ability

Definition(s)

Ability

An individual’s knowledge, skills, abilities, and behavioral attributes that enable him or her to perform his or her work consistently, precisely, and reliably.

Source: International Association of Drilling Contractors, Competence Assurance-Guidelines for Building a Successful Program Revision April 2015. IADC Guidelines  

Ability

capacity to perform an activity. Source: ISO/IEC TS 17027:2014, Conformity assessment – Vocabulary related to competence of persons used for certification of persons, Global Standards
Abnormal Level Earthquake

Abnormal Level Earthquake

Definition(s)

Abnormal Level Earthquake

Intense earthquake of abnormal severity under the action of which the structure should not suffer complete loss of integrity.
  • NOTE: The ALE event is comparable to the abnormal event in the design of fixed structures which are described in API 2A-WSD and ISO 19903. When exposed to the ALE, a manned structure is supposed to maintain structural and/or floatation integrity for a sufficient period of time to enable evacuation to take place.
Source:API RP 2EQ, Seismic Design Procedures and Criteria for Offshore Structures, First Edition, November 2014. Global Standards
Abnormal Pressure

Abnormal Pressure

Definition(s)

Abnormal Pressure

Reservoir pore fluid pressure that is not similar to normal saltwater gradient pressure. The term is usually associated with higher than normal pressure, increased complexity for the well designer and an increased risk of well control problems. Abnormal pressure gradients exceed a 10-ppg equivalent fluid density (0.52 psi per foot). Gradients below normal are called subnormal. Source: IADC UBO / MPD Glossary, December 2011. Global Standards

Abnormal Pressure

Pore pressure in excess of that pressure resulting from the hydrostatic pressure exerted by a vertical column of water with salinity normal for the geographic area. Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global Standards  

Abnormal Pressure

Formation pore pressure in excess of that pressure resulting from the hydrostatic pressure exerted by a vertical column of water with salinity normal for the geographic area. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards

Abnormal Value

Abnormal Value

Definition(s)

Abnormal Value

Design value of a parameter of abnormal severity used in accidental limit state checks in which a structure is intended not to suffer complete loss of integrity.
  • NOTE: Abnormal events have probabilities of the order of 10−3 to 10−4 per year. In the limit state checks, some or all of the partial factors are set to 1.0.
Source: API RP 2MET, Derivation of Metocean Design and Operating Conditions, First Edition, November 2014. Global Standards

Abnormal Value

Design value of a parameter of abnormal severity used in accidental limit state checks in which a structure is intended not to suffer complete loss of integrity.
  • Note: 1 to entry: Abnormal events are typically accidental and environmental (including seismic) events having probabilities of exceedance of the order of 10−3 to 10−4 per annum.
Source: ISO 19900:2013, Petroleum and natural gas industries – General requirements for offshore structures. Global Standards
Abnormal Wave Crest

Abnormal Wave Crest

Definition(s)

Abnormal Wave Crest

Wave crest with probability of typically 10-3 to 10-4 per annum. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards
Abnormally Geo-pressured Strata

Abnormally Geo-pressured Strata

Definition(s)

Abnormally Geo-pressured Strata

"Abnormally geo-pressured strata" means subsurface zones where the pore pressure exceeds a gradient of 0.50 psi/ft. Source: Alaska Oil and Gas Conservation Commission, Definitions, Alaska Admin. Code tit. 20, § 25.990, December 7, 2012. Regulations
Abnormally Pressured

Abnormally Pressured

Definition(s)

Abnormally Pressured

Means that the formation/reservoir pressure exceeds the hydrostatic pressure of a seawater column with reference to LAT. Source: NORSOK D-010, Well integrity in drilling and well operations, Rev. 3, August 2004. Global Standards
ABP

ABP

Definition(s)

ABP

Applied back pressure. Source: API Specification 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, Second Edition, April 2017. Global Standards
ABS

ABS

Definition(s)

ABS

American Bureau of Shipping. 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 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 API RP 500, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and Division 2, Third Edition, December 2012, Global Standards Source: API RP 14F, Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class 1, Division 1 and Division 2 Locations, Fifth Edition, July 2008. Global Standards
Absolute Pressure

Absolute Pressure

Definition(s)

Absolute Pressure

Internal pressure that the equipment is designed to contain and/or control, or that is zero-referenced against a perfect vacuum; measured in “psia”. Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global Standards

Absolute Pressure

Hydrostatic pressure plus applied pressure.

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

Absolute Pressure

Pressure measured with respect to zero pressure; the sum of atmospheric pressure and gauge pressure. Source: IADC UBO / MPD Glossary, December 2011. Global Standards