... boring bit钻孔钻头 boring by percussion冲击钻井 boring by rotation旋转钻井 ...
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... percussion bit 冲击钻头 percussion core 冲击钻井取的岩心 percussion drill 冲击钻井；冲击式钻机 ...
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percussive drilling冲击钻探;冲击钻井;[矿业]冲击凿岩 percussive plough冲唤刨煤机;冲击式刨煤机 percussive coalcutter冲唤截煤机;冲击式截煤机 ..
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... pumpless drilling 无泵钻进 punching drilling 冲击钻井 radial drilling 径向钻进 ...
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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.
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