abrasion n drilling 冲蚀钻井
All of those were expected to provide reference for further studying of erosion abrasion in gas drilling.
这将为更深入地研究气体钻井钻柱冲蚀磨损工作提供了依据和参考。
Heavy torque and abrasion on casing are serious problems in drilling in slim hole.
高钻柱扭矩和套管过度磨损是小井眼钻井中存在的严重问题。
The wear of the matrix of a bit is severe when drilling through super abrasion strata.
钻头在钻进超研磨性地层时，胎体的磨损非常严重。
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