If pre-drilling mode was taken in an offshore oil development, PGB-free well drilling technology might be adopted for supplementary wells when the PGB slots were totally occupied.

  • 采用预钻井方式开发的海上油气田,对水下钻井基盘钻井槽孔用完后增钻的调整井,可采用无基盘钻井方式作业。

  • 互联网摘选 2025-01-20 17:39:23

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