很长时间里他们用冲击钻井——基本上就是不停地砸地面，直到砸不动。
For a long time, they used percussion drilling - which basically means they hammered away at the ground to get as deep as they could get.
引进空气钻井、氮气钻井、空气锤冲击钻井在普光气田上部陆相地层试验和应用，并成功拓展到须家河组地层。
Introducing into air drilling, nitrogen drilling and air percussion drilling were applied in Puguang upper continental facies stratum; moreover, drilled successfully into Xujiahe group stratum.
旋转冲击钻井技术依靠冲击器产生冲击载荷并作用在钻头上来破碎岩石。该技术能够有效提高硬地层钻井速度，能够防止硬地层及复杂地层钻井中的井斜问题。
The rotary percussion drilling technology have the advantage to raise the hard rock well drilling speed effectively, prevent the borehole deviation in the hard rock or the complicated geologic strata.
本课题在国内尚属首次系统研究，文中设计的粒子冲击钻井粒子分离方法及相关设备可以很好的适应粒子冲击钻井系统的工作需要，对此技术的后续研究具有借鉴作用。
The separation method and the devices designed in this paper can meet the needs of the PID system, and are well adjustable, can be referenced by the follow-up study.
本课题在国内尚属首次系统研究，文中设计的粒子冲击钻井粒子分离方法及相关设备可以很好的适应粒子冲击钻井系统的工作需要，对此技术的后续研究具有借鉴作用。
The separation method and the devices designed in this paper can meet the needs of the PID system, and are well adjustable, can be referenced by the follow-up study.
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