Definition(s)


BHA

Bottomhole assembly

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

BHA

“BHA” means bottom-hole assembly.

Source: Alaska Oil and Gas Conservation Commission, Definitions, Alaska Admin. Code tit. 20, § 25.990, December 7, 2012. Regulations

BHA

Bottom hole assembly.

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

Source: API STD 65 – Part 2, Isolating Potential Flow Zones During Well Construction, Upstream Segment, Second Edition, December 2010. 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: 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: NOGEPA Industrial Guideline No. 44, Standards and Acceptance Guidelines, Enhance QA/QC for Critical Well Components, Netherlands, Version 0, July 2011. Global Standards

Source: NORSOK D-010, Well integrity in drilling and well operations, Rev. 3, August 2004. Global Standards

Source: NORSOK D-001, Drilling facilities, Rev. 3, December 2012. Global Standards

Source: NORSOK D-002, Well intervention equipment, Rev. 2, June 2013. Global Standards

 

BHA

Assembly composed of the bit, stabilizers, reamers, drill collars, various types of subs, etc., that is connected to the bottom of a string of drillpipe.

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 

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