18 July 2017
Carrying on drilling operations while maintaining a seal at the top of the wellbore to prevent the well fluids from blowing out.
18 July 2017
(also, “drilling margin”) The drillable pressure profile, bounded on the low side by formation pressure, below which formation fluids will enter the wellbore, and on the […]
18 July 2017
A ship constructed to permit a well to be drilled from it at an offshore location. Although not as stable as semisubmersible MODUs, drillships are capable […]
18 July 2017
Device used to transmit torque from the rotary table to the kelly but allow vertical movement of the kelly while drilling. It may have pins fitting […]