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冲击钻井
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| valign="top" | - Unlike any other drilling method, percussion can remove boulders and break harder formations, effectively and quickly through most types of earth.与其它钻井方式不同， 冲击钻井可以去除卵石并击碎更硬的地质构造，快速有效地穿过大多数地质种类。 <br> - Percussion drilling can in principle deal with most ground conditions.一般而言，冲击钻井能够应对大多数地质状况。<br>- Can drill hundreds of feet (one well hand-drilled in China in 1923 was over 4000 feet deep).能够钻井几百英尺（中国一座1923年手工挖掘的井深达4000余英尺）。 <br>- Can drill further into the water table than dug wells, even drilling past one water table to reach another.与挖井相比，冲击钻井能深入地下水位更深，甚至可以超过一个地下水位而达到另一个。 <br>| valign="top" | - The equipment can be very heavy and relatively expensive.钻井设备可能很重， 相对而言也较昂贵。<br>- Especially in harder rock the method is slow (weeks, rather than days).尤其当岩石更为坚硬时，这一钻井方法较慢（需要几周，而不仅是几天）。 尤其当岩石较为坚硬时，这一钻井方法较慢（需要几周，而不仅是几天）。 <br>- When temporary casing has to be used, the time taken driving and removing it can significantly increase drilling time.在必须使用临时套管的情况下，花费在的装卸套管上的时间会大量增加钻井时间。<br>- Equipment costs are high and the method is slow (resulting in high cost / drilled meter).设备成本昂贵，且方法较慢（导致每米的钻井成本高昂）。 设备成本高昂，且方法较慢（导致每米的钻井成本高昂）。 <br>
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