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09:02 Sep 20, 2007
English to Russian translations [PRO] Tech/Engineering - Petroleum Eng/Sci / drilling
English term or phrase:valve assembly
This section will be drilled using the “Casing Drilling” drilling system.
This technique uses the casing to transmit rotary torque and weight to the drill bit, a drillable drill bit and valve assembly is made up and run with the first joint of casing, the casing string is rotated during drilling with a spear assembly that provides rotation to the casing. Upon reaching TD, there is no need for an additional trip and the casing can be cemented immediately.