... tapered drill collar string 塔式钻铤组合 ; 踏式钻铤组合 drill pipe string 钻杆柱 drill string mechanics 钻柱力学 ...
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drill-pipe string 钻杆柱
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What is the drill pipe string weight in air?
钻杆在空气中的重量是多少?
youdao
The new pipe will be placed right next to the small section of abandoned pipe where the drill string got stuck.
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Allen said that in preparation for the storm, crews had pulled the drill string out, put a plug known as a "packer" in the casing pipe and filled the riser with seawater so the pipe would be stable.
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