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11:07 Sep 20, 2007
This question was closed without grading. Reason: Answer found elsewhere
English to Russian translations [PRO] Tech/Engineering - Petroleum Eng/Sci / drilling
English term or phrase:ND
1) ND 30” riser section. Double check measurement from rotary to top of 30” stub.
2) Prior to picking up wellhead, install cut tire on top of 30” stub to act as a seal during cementing.