casing drilling string

常见例句

双语例句

• 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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• The results are useful for adjustment of drilling parameters, design of casing string and prevention of casing damage.
  此项研究成果可用于钻遇盐岩层时的钻井参数调整、套管柱的工程设计、套损井防治。
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• The adapter between the first casing string and either the BOP stack (during drilling) or the wellhead (after completion).
  在第一根套管柱和防喷器组（钻井时）或完井后的井口之间的一个接头。
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