API Screen Number

API Screen Number

Definition(s)


API Screen Number

Mesh, obsolete. Mesh count, obsolete. Number in an API system used to designate the D100 separation range of a mesh screen cloth. cf. D100 separation (3.1.23). NOTE 1 The term mesh was formerly used to refer to the number of openings (and fraction thereof) per linear inch in a screen, counted in both directions from the centre of a wire. This term is being replaced by the API screen number. NOTE 2 Mesh count was formerly used to describe the fineness of a square or rectangular mesh screen cloth. For example, a mesh count such as 30 × 30 or often 30 mesh indicates a square mesh, while a designation such as 70 x 30 mesh indicates rectangular mesh. This term is being replaced by the API screen number. NOTE See 9.6 for further information. Source: API RP 13C, Recommended Practice on Drilling Fluids Processing Systems Evaluation, Upstream Segment, Fourth Edition, December 2010. Global Standards  
API Specified Requirements

API Specified Requirements

Definition(s)


API Specified Requirements

Those requirements, including performance requirements, set forth in API Specification Q1, the applicable API product specification and those Licensee-specified requirements necessary to meet them. 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
API Threads

API Threads

Definition(s)


API Threads

Threads as specified in API Spec 5B. Source: API SPEC 5CT, Specification for Casing and Tubing, Upstream Segment, Ninth Edition, July 2011 (Errata September 2012). Global Standards
APME

APME

Definition(s)


APME

Association of Plastic Manufacturers in Europe. Source: API SPEC 13A, Specification for Drilling Fluids Materials, Eighteenth Edition, February 2010. Global Standards  
Apparatus

Apparatus

Definition(s)


Apparatus, intrinsically safe

Apparatus in which all the circuits are intrinsically safe. 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  

Associated apparatus

Apparatus used in intrinsically safe systems in which the circuits are not necessarily intrinsically safe themselves but affect the energy in the intrinsically safe circuits and are relied on to maintain intrinsic safety, see NEC Article 504-4 for additional details. 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  

Simple apparatus (as applied to intrinsic safety)

A device that will not generate or store more than 1.2 V, 0.1 A, 25 mW, or 20 microJ. Examples are switches, thermocouples, light-emitting diodes, connectors, and resistance temperature detectors (RTDs). Apparatus reliant on voltage or current limiting or suppression devices for remaining within the limits given in the definition, and sensors (e.g. certain gas detector sensors) that utilize catalytic reaction or other electrochemical mechanisms are excluded by IEC 60079-11 from the category of "simple apparatus". Temperature limitations as described in 4.2 are applicable to simple apparatus. 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
Apparatus, Intrinsically Safe

Apparatus, Intrinsically Safe

Definition(s)


Apparatus, Intrinsically Safe

Apparatus in which all the circuits are intrinsically safe.

Source: API Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, Second Edition, May 2013. Global Standards
Apparent Power

Apparent Power

Definition(s)


Apparent Power

Combination of real and reactive power. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Apparent Viscosity

Apparent Viscosity

Definition(s)


Apparent Viscosity

Slope of the shear stress versus velocity gradient for a fluid. For Newtonian fluids, the apparent viscosity equals the absolute viscosity. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Apparent Weight

Apparent Weight

Definition(s)


Apparent Weight

Weight minus buoyancy (commonly referred to as weight in water, wet weight, submerged weight, or effective weight). Source: API RP 16Q, Recommended Practice for Design, Selection, Operation and Maintenance of Marine Drilling Riser Systems, First Edition, November 1993 (Reaffirmed August 2001). Global Standards  

Apparent Weight

Submerged weight including content minus buoyancy. Source: API RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). Global Standards  

Apparent Weight

Weight minus buoyancy. NOTE Apparent weight is commonly referred to as weight in water, wet weight, submerged weight, or effective weight. 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    
Appeal

Appeal

Definition(s)


Appeal

Request by a CAB for reconsideration of any adverse decision made by the accreditation body related to its desired accreditation status. NOTE Adverse decisions include - refusal to accept an application, - refusal to proceed with an assessment, - corrective action requests, - changes in accreditation scope, - decisions to deny, suspend or withdraw accreditation, and - any other action that impedes the attainment of accreditation. Source: ISO/IEC 17011:2004, Conformity assessment – General requirements for accreditation bodies accrediting conformity assessment bodies. Global Standards  

Appeal

request by applicant, candidate or certified person for reconsideration of any decision made by the certification body related to his/her desired certification status [SOURCE: ISO/IEC 17024:2012, 3.19]. Source: ISO/IEC TS 17027:2014, Conformity assessment – Vocabulary related to competence of persons used for certification of persons, Global Standards  

Appeal

“Appeal” means an appeal under regulation 24. Source: The Offshore Installations (Safety Case) Regulations 2005, UK S.I. 2005/3117, 2005. Regulations
Applicable Code

Applicable Code

Definition(s)


Applicable Code

The code, code section, or other recognized and generally accepted engineering standard or practice to which the piping system was built or which is deemed by the owner/user or the piping engineer to be most appropriate for the situation, including but not limited to the latest edition of ASME B31.3.

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
Applicable Construction Code

Applicable Construction Code

Definition(s)


Applicable construction code

The code, code section, or other recognized and generally accepted engineering standard or practice to which the pressure vessel was built or that is deemed by the owner/user or the engineer to be most appropriate for the situation.

Source: API 510, Pressure Vessel Inspection Code: In-service Inspection, Rating, Repair, and Alteration, Tenth Edition, May 2014, with Addendum May 2017. Global Standards

Applicable construction code

The code, code section, or other recognized and generally accepted engineering standard or practice to which the pressure vessel was built or which is deemed by the owner/user or the engineer to be most appropriate for the situation. Source: API 510, Pressure Vessel Inspection Code: In-Service Inspection, Rating, Repair, and Alteration Downstream Segment, Ninth Edition, June 2006. Global Standards
Applicant

Applicant

Definition(s)


Applicant

“Applicant” or “person” means a natural person, corporation, association, partnership, receiver, trustee, executor, administrator, guardian, fiduciary, or other representative of any kind, and includes any government or a political subdivision or agency thereof. The masculine gender, in referring to a person, includes the feminine and the neuter genders. Source: Division of Mineral Resources Management - Oil and Gas, Ohio Administrative Code, Chapter 1501:9, January 2012. Regulations  

Applicant

person who has submitted an application to be admitted into a certification process. [SOURCE: ISO/IEC 17024:2012, 3.13]. Source: ISO/IEC TS 17027:2014, Conformity assessment – Vocabulary related to competence of persons used for certification of persons, Global Standards

Applicant

A natural person or legal entity which in order to prove compliance adopts the compliance declaration or applies for or receives a compliance certificate. (as amended by the Federal Law dated 01.05.2007 No. 65-FZ) Source: Federal Law on Technical Regulation, No. 184-FZ, Russian Federation, December 2002 (amended September 2010). Regulations  

Applicant

APPLICANT shall mean the person who institutes a proceeding before the Commission which it has standing to institute under these rules. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. Regulations  

Applicant

A person who has filed an application for a permit to construct a sour gas pipeline facility, or a representative of that person. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations
Application

Application

Definition(s)


Application

Software program that performs specific functions initiated by a user command or a process event and that can be executed without access to system control, monitoring, or administrative privileges [9]. Source: ANSI/ISA–99.00.01–2007, Security for Industrial Automation and Control Systems, Part 1: Terminology, Concepts, and Models, 29 October 2007. National Standard

Application

IT solution, including application software, application data and procedures, designed to help an organization’s users perform particular tasks or handle particular types of IT problems by automating a business process or function. [ISO/IEC 27034-1:2011] Source: ISO/IEC 27032:2015, Information technology — Security techniques — Guidelines for cybersecurity, First Edition, July 2012. Global Standards

Application

Application for a Permit to Construct a Sour Gas Pipeline Facility, and all required attachments. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations
Application Service Provider

Application Service Provider

Definition(s)


Application Service Provider

Operator who provides a hosted software solution that provides application services which includes web based or client-server delivery models EXAMPLE Online game operators, office application providers and online storage providers. Source: ISO/IEC 27032:2015, Information technology — Security techniques — Guidelines for cybersecurity, First Edition, July 2012. Global Standards  
Application Services

Application Services

Definition(s)


Application Services

Software with functionality delivered on-demand to subscribers through an online model which includes web based or client-server applications. Source: ISO/IEC 27032:2015, Information technology — Security techniques — Guidelines for cybersecurity, First Edition, July 2012. Global Standards
Application Software

Application Software

Definition(s)


Application Software

Software designed to help users perform particular tasks or handle particular types of problems, as distinct from software that controls the computer itself. [ISO/IEC 18019] Source: ISO/IEC 27032:2015, Information technology — Security techniques — Guidelines for cybersecurity, First Edition, July 2012. Global Standards
Appropriate Authority

Appropriate Authority

Definition(s)


Appropriate Authority

Governmental body and/or classification society with whose rules a unit is required to comply. Source: IEC 61892-6, Mobile and fixed offshore units – Electrical installations – Part 6: Installation. Global Standards Source: IEC 61892-7, Mobile and fixed offshore units – Electrical installations – Part 7: Hazardous areas. Global Standards  

Appropriate Authority

In this section, “appropriate authority” means
  1. with respect to a navigable water, the Minister of Transport; and
  2. [Repealed, 1996, c. 10, s. 239]
  3. with respect to any other facility, the Board.
Source: National Energy Board Act, R.S.C., 1985, c. N-7, Canada, current to April 29, 2013. Legislation  

Appropriate Authority

In this section and sections 110 and 111, “appropriate authority” means
  1. with respect to a navigable water, the Minister of Transport, and
  2. [Repealed, 1996, c. 10, s. 244]
  3. with respect to any other utility, the Board; autorité compétente.
Source: National Energy Board Act, R.S.C., 1985, c. N-7, Canada, current to April 29, 2013. Legislation
Approval

Approval

Definition(s)


Approval

Denotes acceptance by DNV GL of documentation showing design solutions, arrangements and equipment that complies with the Rules Source: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. Global Standards
Approval of Persons

Approval of Persons

Definition(s)


Approval of Persons

procedure based on predefined factors and an issuance of a documented statement by which the governmental or other designated body recognizes persons to perform specific activities Note 1 to entry: Certification or other conformity assessment procedures can be a prerequisite for approval. Source: ISO/IEC TS 17027:2014, Conformity assessment – Vocabulary related to competence of persons used for certification of persons, Global Standards
Approved

Approved

Definition(s)


Approved

Denotes acceptance by DNV GL of documentation showing design solutions, arrangements and equipment that complies with the Rules. Source: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. Global Standard  

Approved

Acceptable to the authority having jurisdiction. [Electrical devices that are listed or approved by a NRTL (e.g. UL, FM or CSA) normally are acceptable].
  • NOTE: The means for identifying listed equipment may vary for each organization concerned with product evaluation, some of which do not recognize equipment as listed unless it is also labeled. The authority having jurisdiction should utilize the system employed by the listing organization to identify a listed product.
Source: API Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, Second Edition, May 2013. Global Standards  

Approved

"Approved" means sanctioned, endorsed, accredited, certified, or accepted by a duly constituted and recognized authority or agency. Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. Regulations  

Approved

Approved means approved by the Commandant, unless otherwise indicated. Source: Outer Continental Shelf Activities, 33 CFR 140-147 (2013). Regulations  

Approved

Approved:
  1. when used in any of the following provisions:
    1. Chapter 3;
    2. section 775;
  2. means approved in writing by the responsible Commonwealth Minister; or
  3. in any other case—means approved in writing by the Titles Administrator.
This definition does not apply to:
  1. the expression approved site plan; or
  2. section 286A; or
  3. section 650; or
  4. subsection 695B(3); or
  5. section 695F; or
  6. section 774.
Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. Legislation  

Approved

Acceptable to the authority having jurisdiction. 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

Approved

Acceptable to the authority having jurisdiction. (Electrical devices that are listed or approved by UL, FM or CSA normally are acceptable.) NOTE: The means for identifying listed equipment may vary for each organization concerned with product evaluation, some of which do not recognize equipment as listed unless it is also labeled. The authority having jurisdiction should utilize the system employed by the listing organization to identify a listed product. 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  

Approved

Sanctioned, endorsed, accredited, certified, or accepted by a duly constituted and recognized authority or agency. 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 RP 74, Recommended Practice for Occupational Safety for Onshore Oil and Gas Production Operation, First Edition, October 2001 (March 2007). Global Standards

Approved

  1. where applied to specification, means that the specification is authorized by the Chief Controller;
  2. where applied to an appliance or fitting, means that the appliance or fitting bears a label of a designated test organization certifying conformity with a specification approved by the Chief Controller or with a laboratory test report accepted by the Chief Controller, or
  3. where applied to any facility for petroleum means that it conforms to these rules.
Source: The Petroleum Rules, 1976, India, 1976. Regulations  

Approved

  1. Where applied to a specification, means that the specification authorized by the Chief Controller including the following Oil Industry Safety Directorates Standards: OISD-105, OISD-116, OISD-117, OISD-118, OISD-141 and OISD-156.
  2. where applied to an appliance or fitting, means that the appliance or fitting bears a label of a designated testing organization certifying conformity with a specification approved by the Chief Controller or with a laboratory test report accepted by the Chief Controller.
  3. where applied to any facility for petroleum, means that it conforms to these rules.
Source: The Petroleum Rules, 1976, India, 1976. Regulations
Appurtenance

Appurtenance

Definition(s)


Appurtenance

part of the structure that is installed to assist installation, to provide access or protection. Source: ISO 19900:2013, Petroleum and natural gas industries – General requirements for offshore structures. Global Standards
AQL

AQL

Definition(s)


AQL

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

AQL

Acceptable quality level. 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  

AQL

Acceptance quality limit. Source: API SPEC 11D1, Packers and Bridge Plugs, Upstream Segment, Second Edition, July 2009. Global Standards Source: API SPEC 14A, Specification for Subsurface Safety Valve Equipment, Eleventh Edition, October 2005 (Reaffirmed June 2012). Global Standards
Aquifer

Aquifer

Definition(s)


Aquifer

"Aquifer" means a geological formation, group of formations, or part of a formation that is capable of yielding a significant amount of water to a well or spring. Source: Corporation Commission, Oil and Gas Conservation, Oklahoma Administrative Code 165:10, February 2013. Regulations  

Aquifer

“Aquifer” means a geological formation, group of formations, or part of a formation that is capable of yielding a significant amount of water to a well or spring. Source: Division of Mineral Resources Management - Oil and Gas, Ohio Administrative Code, Chapter 1501:9, January 2012. Regulations

Aquifer

A subsurface formation that is sufficiently permeable to hold and conduct groundwater and to yield economically significant quantities of water to wells and springs. Source: Identifying and assessing water sources: Guidance document for the onshore oil and gas industry, International Petroleum Industry Environmental Conservation Association (IPIECA), 2014. Global Standards

Aquifer

AQUIFER shall mean a geologic formation, group of formations or part of a formation that can both store and transmit ground water. It includes both the saturated and unsaturated zone but does not include the confining layer which separates two (2) adjacent aquifers. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. Regulations  

Aquifer

“Aquifer” means a geological formation, group of formations or a part of a formation that is capable of yielding a significant amount of water to a well or spring. Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. Regulations      
AR (acid resistant) glass

AR (acid resistant) glass

Definition(s)


AR (acid resistant) glass

Glass fibre or synthetic veil having a specific chemical resistance against acids, alkalis or other aggressive chemicals.
  • Note: 1 to entry: Such glass can be used as a reinforcement for the resin-rich internal liner of GRP pipe or as a reinforcement in the structural portion of GRP pipe.
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
Arc

Arc

Definition(s)


Arc (verb)

Create intense heat and light by passing an electric current across a gap. Source: API RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. Global Standards  
Arc Burn

Arc Burn

Definition(s)


Arc Burn

Localised point of surface melting caused by arcing between an electrode or ground (earth) and the product surface. NOTE Contact marks, which are intermittent marks adjacent to the weld line of EW pipe resulting from electrical contact between the electrodes supplying the welding current and the pipe surface, or contact marks resulting from the use of a spectrometer for the detection of steel chemical composition, are not arc burns. Source: API SPEC 5CT, Specification for Casing and Tubing, Upstream Segment, Ninth Edition, July 2011 (Errata September 2012). Global Standards
Arc-fault circuit interrupter

Arc-fault circuit interrupter

Definition(s)


Arc-fault circuit interrupter

A device intended to provide protection from the effects of arc faults by recognizing characteristics unique to arcing and by functioning to de-energize the circuit when an arc fault is detected.

Source: API Recommended Practice 14FZ, Recommended Practice for Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class I, Zone 0, Zone 1, and Zone 2 Locations, Second Edition, May 2013. Global Standards
Area Classification

Area Classification

Definition(s)


Area Classification

Division of an installation into hazardous areas and non-hazardous areas and the sub-division of hazardous areas into zones Note 1 to entry: This classification is based on the materials which can be present and the probability of a flammable atmosphere developing. Area classification is primarily used in the selection of electrical equipment to minimize the likelihood of ignition if a release occurs. 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

Area Classification

Assessed division of a facility into hazardous and non-hazardous areas, and the subdivision of the hazardous areas into zones. Source: IEC 61892-7, Mobile and fixed offshore units – Electrical installations – Part 7: Hazardous areas. Global Standards
Area Of Influence

Area Of Influence

Definition(s)


Area Of Influence

Area along a sour gas pipeline facility represented by all possible areas of exposure using the 100 ppm radius. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations  

Area Of Influence

The spatial extent of the project’s impact due to water abstraction and discharge. Source: Identifying and assessing water sources: Guidance document for the onshore oil and gas industry, International Petroleum Industry Environmental Conservation Association (IPIECA), 2014. Global Standards