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
Bent Sub
A short cylindrical device installed in the drill pipe between the drill collar and a downhole motor.
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