• 震击连接一起进行作业井下工具

    The drilling jar which is connected with drill tool and worked with drill string is a downhole stuck freeing tool in drilling operation .

    youdao

  • 针对过程常见井下事故,研制新型液压震击器

    In light of the commonly seen downhole breakdown of drilling pipe sticking in the drilling process, the new-type fully hydraulic while-drilling bumper sub was developed.

    youdao

  • 针对过程常见井下事故,研制新型液压震击器

    In light of the commonly seen downhole breakdown of drilling pipe sticking in the drilling process, the new-type fully hydraulic while-drilling bumper sub was developed.

    youdao

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