... 多层混合完井 commingled multizone completion 半导体量子井混合 QWI 双层混合套管固井技术 pipe casing string ...
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pipe-in-pipe casing string 双层组合套管固井技术
pipe casing string
套管管柱
以上为机器翻译结果，长、整句建议使用 人工翻译 。
An enlarged pipe at the top of a casing string that serves as a funnel to guide drilling tools into the top of a well.
套管柱顶部的一根大口径管，形如漏斗，以引导钻井工具进入到井眼的顶部。
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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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