Drilling Industry Glossary
rabbit
rate of penetration
rathole
ream
reciprocating
riser
RKB
rotating off bottom (ROffB)
rotating on bottom (ROnB)
rotational viscometer
Rotating Off Bottom (ROffB)
Pipe rotates without any axial movement, such as rate of penetration or tripping. There is no weight on bit (WOB) or torque on bit (TOB) because the bit is not engaged with formation.
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