rotary percussion drilling
... 旋转打浆机:rotary beater 旋转冲击钻井:rotary percussion drilling 旋转充填丢手工具:rotary compactor releasing tool ...
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冲击旋转钻井 percussive-rotary drilling ; impact-rotary drilling
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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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