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冲击钻井 — 石锤法
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02:15, 13 November 2015
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- 与机械钻井相比,石锤钻井简易得多,且维护问题更少(无需像汽化器、变速箱等等那样的“高科技”部件)。<br>
| valign="top" | - 当钻头锤入地下构造后,难以移除钻头。<br>
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石锤只在卵石较小的情况下才起作用,并不适用于有较大卵石的情况。
石锤只在卵石较小的情况下才起作用,并不适用于卵石较大的情况。
<br>
- 比机械钻井慢。
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