A large valve, usually installed above the ram preventers, that forms a seal in the annular space between the pipe and wellbore or, if no pipe is present, on the wellbore itself is called the ____________.
A
annular blowout preventer
B
annulus
C
accumulator
D
automatic choke
E
İlgili Sorular
BOTH INTERNATIONAL & INLAND A vessel approaching your vessel from 235° relative is in what type of s...With certain exceptions a suitable rescue boat is required ___________.BOTH INTERNATIONAL & INLAND Additional light signals are provided in the Annexes to the Rules for ve...On the cargo manifest, the weight of the cargo inside a box is called the __________.INLAND ONLY At night, a barge moored in a slip used primarily for mooring purposes shall __________.