The performance difference between air crew drill and mud motor was analyzed under the air drilling condition.

对比分析了空气螺杆钻具与泥浆马达在空气钻井井况下的性能差异。

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The performance difference between air crew drill and mud motor was analyzed under the air drilling condition.

对比分析了空气螺杆钻具与泥浆马达在空气钻井井况下的性能差异。

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