... 标配钻杆型号standard drilling rod model 潜孔锤钻进down hole hammer drilling 旋转钻进rotating drilling ...
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在水文水井中，气动潜孔锤钻进仍可发挥它高效率、高速度的作用。
The air-driven down-hole hammer drilling is still very effective and speedy in well drilling in karst limestone area.
本文论述了潜孔锤钻进的岩石破碎机理以及影响潜孔锤碎岩效果的因素。
This paper discusses the rock crushing mechanism of DTH hammer drilling and factor influencing the effect of DTH hammer broken rock.
钻机可适用多种钻进工艺方法，如合金回转钻进螺旋钻进潜孔锤钻进跟管钻进等。
8 the rig is suitable for various drilling methods such as carbide bit drilling, auger drilling, DTH hammer drilling, follow - up casing drilling, etc. 3.
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