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在中硬、坚硬的地层和夹卵石的冲积层,采用潜孔锤钻进最有效.在饱和水岩层,例如水敏性页岩,也可应用潜孔锤钻进,但在这种情况下,必须采用充气液体作清洗介质. 在钻进浅孔、中深孔大直径钻孔时,用潜孔锤比较合理.孔深100m,最小孔径一般为76～89mm,打深孔时,孔径可到114mm. 潜孔锤在大涌水量孔段、很软的夹层、陡倾地层、松散的砂-粘土层、饱和硫化氢气体地层、或高压地层的钻进困难.
Downhole hammer drilling is most effective in hard, hard formations and gravel alluvial deposits, and downhole hammer drilling can also be applied in saturated water formations such as water-sensitive shales, but in this case , You must use aerated liquid as the cleaning medium.When drilling shallow hole, medium-deep hole large diameter drilling, the use of downhole hammer more reasonable.Pore depth 100m, the smallest aperture is generally 76 ~ 89mm, playing deep hole, the aperture can be To 114mm. DTH Holes are difficult to drill in large gully sections, very soft mezzanines, steeply dipping beds, loose sand-clay beds, saturated H2S gas stratums, or high-pressure formations.