Glossary
Browse the IADC Lexicon alphabetically or by category. Get comprehensive definitions of drilling industry terms.
C
Definition(s)
C
Specified minimum yield strength.
Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global StandardsC
Distance from the neutral axis to the reference section. Source: API Technical Report 17TR7, Verification and Validation of Subsea Connectors, First Edition, April 2017. Global StandardsC
“C” is the ship’s total volume of oil fuel, including that of the small oil fuel tanks, in m3, at 98% tank filling. <Annex 1, regulation 12A>. 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. LegislationC Class Bulkhead or Deck
Definition(s)
C Class Bulkhead or Deck
C class bulkhead or deck means a bulkhead or deck made of approved noncombustible material. Source: Mobile Offshore Drilling Units, 46 CFR 107-109 (2013). RegulationsC glass
Definition(s)
C 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.
C&K
Definition(s)
C&K
Choke and kill. Source: API RP 96, Deepwater Well Design and Construction, First Edition, March 2013. Global Standards Source: Deepwater Well Control Guidelines. IADC GuidelinesC&K Line
Definition(s)
C&K Line
External conduit arranged laterally along the riser pipe and used for circulation of fluids into and out of the wellbore to control well pressure. 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 StandardsC-NAAIA2
Definition(s)
C-NAAIA2
Canada-Newfoundland Atlantic Accord Implementation Act. Incident Reporting and Investigation Guidelines, The Canada-Nova Scotia Offshore Petroleum Board and Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada, November 30, 2012. Regulatory GuidanceC-NLOPB
Definition(s)
C-NLOPB
Canada – Newfoundland and Labrador Offshore Petroleum Board. Source: Environmental Protection 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 Source: Incident Reporting and Investigation Guidelines, The Canada-Nova Scotia Offshore Petroleum Board and Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada, November 30, 2012. Regulatory Guidance Source: Offshore Physical Environmental Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, September 2008. Regulatory Guidance 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 GuidanceC-R
Definition(s)
C-R
Circumferentially oriented specimen with a radial flaw.
Source: API Technical Report 17TR7, Verification and Validation of Subsea Connectors, First Edition, April 2017. Global StandardsC/K Lines
Definition(s)
C/K Lines
Choke and kill lines. Source: API Specification 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, Second Edition, April 2017. Global StandardsC/K Lines
High-pressure line that allows fluids to be pumped into or removed from the well with the BOPs closed. Source: API Specification 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, Second Edition, April 2017. Global StandardsC/WO
Definition(s)
C/WO
Completion/workover. Source: API Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. 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 RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). Global StandardsCA
Definition(s)
CA
Hydrodynamic added mass coefficient. Source: API Specification 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, Second Edition, April 2017. Global StandardsCA
Certifying authority. Source: Oil & Gas UK, Guidelines on subsea BOP systems, Issue 1, July 2012, Global StandardsCA
Condition on behalf of the flag administration. Source: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. Global StandardCAA
Definition(s)
CAA
Civil Aviation Authority. 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 GuidelinesCab
Definition(s)
Cab
An enclosure for the operator and the machine operation controls. 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 StandardsCAB
Body that performs conformity assessment services and that can be the object of accreditation. NOTE Whenever the word “CAB” is used in the text, it applies to both the “applicant and accredited CABs” unless otherwise specified. Source: ISO/IEC 17011:2004, Conformity assessment – General requirements for accreditation bodies accrediting conformity assessment bodies. Global StandardsCabin Balcony
Definition(s)
Cabin Balcony
Cabin balcony is an open deck space which is provided for the exclusive use of the occupants of a single cabin and has direct access from such a cabin.<Chapter II-2, regulation 53>. 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. LegislationCable
Definition(s)
Cable
Cable: line located in the territorial sea or the continental shelf, between two or more mining installations or between a mining installation and another works, designated by Our Minister, for the transport of electricity or electronic signals. Source: Mining Decree of the Netherlands, Netherlands, 2003 (as amended in 2007) LegislationCable
Cable means: (a) 1 length of single insulated conductor that may or may not have an overall protective covering; or (b) 2 or more lengths of single insulated conductor that are laid up together and may or may not have an overall protective covering. Source: Health and Safety in Employment (Mining—Underground) Regulations 1999, SR 1999/331, New Zealand, as of 8 October 1999. RegulationsCable Ladder System
Definition(s)
Cable Ladder System
assembly of cable supports consisting of cable tray lengths or cable ladder lengths and other system components [SOURCE: IEC 61537:2006, 3.1]. Source: IEC 61892-6, Mobile and fixed offshore units – Electrical installations – Part 6: Installation, Third Edition, December 2013. Global StandardsCable Safety Circuit
Definition(s)
Cable Safety Circuit
A circuit which is an integral portion of the electric wireline unit which opens the electric wireline cable to the application of current and resistively shunts the conductor to the cable armour. Source: API RP 67, Recommended Practice for Oilfield Explosives Safety, Upstream Segment, Second Edition, May 2007. Global StandardsCable Tray System
Definition(s)
Cable Tray System
assembly of cable supports consisting of cable tray lengths or cable ladder lengths and other system components [SOURCE: IEC 61537:2006, 3.1]. Source: IEC 61892-6, Mobile and fixed offshore units – Electrical installations – Part 6: Installation, Third Edition, December 2013. Global StandardsCable, Circuit Integrity
Definition(s)
Cable, Circuit Integrity
Cable that is used for critical circuits to ensure survivability for continued circuit operation for a specified time under fire conditions. See 6.7.8 for recommended applications and cable selection.
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 StandardsCable, Impervious Sheathed
Definition(s)
Cable, Impervious Sheathed
Cable constructed with an impervious metallic or nonmetallic overall covering that prevents the entrance of gases, moisture or vapors into the insulated conductor or cable. 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 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 StandardsCable, ITC
Definition(s)
Cable, ITC
Type ITC instrumentation tray cable is a factory assembly of two or more 300V insulated copper conductors, Nos. 22 through 12 AWG, with or without grounding conductor(s), and enclosed in a nonmetallic sheath with or without an armor as defined by NEC Article 727. 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 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 StandardsCable, ITC-ER
Definition(s)
Cable, ITC-ER
Type ITC instrumentation tray cable is a factory assembly of two or more 300V insulated copper conductors, Nos. 22 through 12 AWG, with or without grounding conductor(s), and enclosed in a nonmetallic sheath with or without an armor as defined by NEC Article 727. This cable is suitable for exposed runs (ER) between cable tray and utilization equipment where the cables are supported and secured.
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 StandardsCable, ITC-HL
Definition(s)
Cable, ITC-HL
Type ITC instrumentation tray cable is a factory assembly of two or more 300V insulated copper conductors, Nos. 22 through 12 AWG, with or without grounding conductor(s), and enclosed in a nonmetallic sheath with or without an armor as defined by NEC Article 727. This cable is suitable for use in Class I Zones 1 and 2. Reference NEC Article 505 for installation details.
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