空气螺杆钻具是专为空气钻井而设计的动力装置。
The air screw drill tool was power equipment which was designed for air drilling.
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。
The performance difference between air crew drill and mud motor was analyzed under the air drilling condition.
本发明提出一种带有骨架式定子的螺杆钻具，属于钻井工具领域。
The invention provides a screw drill with a skeleton-type stator, belonging to the field of drilling tools.
本发明涉及一种用于石油钻井的螺杆钻具，具体涉及石油钻探设备技术领域。
The invention relates to a screw rod drilling tool used for petroleum drilling, and particularly relates to the technical field of petroleum drilling equipment.
在钻井施工作业中，螺杆钻具常因砂卡导致螺杆马达工作失效，导致螺杆钻具报废，严重影响了正常钻井作业。
During drilling process, screw drill motor sometimes doesn't work properly or even seriously damaged because of sand jamming.
因此，研究气体螺杆钻具在井下的输出性能对水平井气体钻井有着非常重要的意义。
So the research on the output performance of the air PDM is of great significance for the gas drilling during the horizontal well drilling.
因此，研究气体螺杆钻具在井下的输出性能对水平井气体钻井有着非常重要的意义。
So the research on the output performance of the air PDM is of great significance for the gas drilling during the horizontal well drilling.
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