Skip to main content
Oil and Gas Drilling Glossary - IADCLexicon.org
  • About
  • Glossary
  • Topics
    • Global Standards
    • IADC Guidelines
    • Legislation
    • National or Regional Standards
    • Regulations
    • Regulatory Guidance
    • Well Control Institute
  • FAQ
  • Contribute
  •  Drilling News
  • Sources

Aa

Oil & Gas Drilling Glossary - IADCLexicon.org

Live Search

Glossary

Browse the IADC Lexicon alphabetically or by category. Get comprehensive definitions of drilling industry terms.

Continue

FAQ

Need help using the IADC Lexicon? The FAQ section will answer most of your questions, and you can also submit questions directly.

Continue

Contribute

Become a Lexicon Contributor. Simply fill out the form, then submit new terms for approval and/or edit existing terms.

Continue
  2. Posts
  3. A
  4. Aa

Definition(s)

Aa

Area ratio.

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

A, Global StandardsArafat Hoque

Related Articles

  • Temperature, Autoignition (AIT)
  • Seal, Explosionproof Conduit
  • Seal, Explosionproof Cable
  • Protection, Type of
  • Protection, Special
  • Pressurization, Type Z
Comments are closed.

Lexicon Categories

  • Legislation
  • Regulations
  • Regulatory Guidance
  • Global Standards
  • IADC Guidelines
  • Well Control Institute

Categories

A-Z Index

  • 0-9
  • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • K
  • L
  • M
  • N
  • O
  • P
  • Q
  • R
  • S
  • T
  • U
  • V
  • W
  • X
  • Y
  • Z

Copyright Info

The IADC Lexicon is © IADC. However, the documents from which the definitions were drawn may be copyrighted by the original sources, and may not be used without express permission of the copyright holders. IADC expressly recognizes the copyrights of contributors to this Lexicon, including API, OGP, ISO, NORSOK and DNV.

Navigation

  • About
  • Glossary
  • FAQ
  • Contribute
  • Drilling News
  • Sources
  • Contact


Learn About Drilling

  • DrillingMatters.org
  • DrillingContractor.org
  • Drilling Contractor Digital Reader
  • IADC.org

Popular Terms

  • Normal Cubic Metres Per Hour (Nm3/h)
  • Standard Cubic Feet Per Hour (SCFH)
  • Exchangeable Sodium Percentage (ESP)
  • “B” Class Divisions (fire divisions)
  • Inside Blowout Preventer (IBOP)
  • Manifold
  • “A” Class Divisions (fire divisions)
  • Wear Bushing
  • LOPC
  • Drilling Operations
  • Well Control Equipment
  • Plug Back Total Depth
  • LMRP
  • Safety-Critical Elements
  • Starting Current Ratio (IA/IN)
  • Bridging Document
  • Mud Cap Drilling
  • Psychological Consequence
  • Critical Equipment
  • Inflow Test

Recent Terms

  • Temperature, Autoignition (AIT)
  • Seal, Explosionproof Conduit
  • Seal, Explosionproof Cable
  • Protection, Type of
  • Protection, Special
  • Pressurization, Type Z
  • Pressurization, Type Y
  • Pressurization, Type X
  • Maintenance, Operational
  • Maintenance,Corrective
  • Line of Demarcation
  • Flameproof
  • Facility, Manned
  • Enclosure, Purged and Pressurized
  • Enclosure, NEMA Type
  • Enclosure, Explosionproof
  • Device, Sealed
  • Device, High-Temperature
  • Device, Hermetically Sealed
  • Device, Arcing
Oil and Gas Drilling Glossary – IADCLexicon.org is © 2024 IADC. However, the documents from which the definitions were drawn may be copyrighted by the original sources, and may not be used without express permission of the copyright holders. IADC expressly recognizes the copyrights of contributors to this Lexicon, including API, OGP, ISO, NORSOK and DNV. Click to View Disclaimer