Drilling Industry Glossary
back off
balanced cement plug
barite
BBL or bbl
bent sub
bill of lading (B/L)
bit
bit hydraulic horsepower
bit size
blowout
blowout preventer (BOP)
blowout preventer stack
BML
bottomhole
bottomhole assembly
bottomhole plug
bottomhole pressure (BHP)
breakout
bring in a well
buckling
Breakout
Act of unscrewing one section of pipe from another section, particularly when drill pipe is being withdrawn from the wellbore.
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