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十八、液动冲击回转钴进，对原用地面设备需要作哪些改动？答：目前国内采用的液动冲击回转钻进方法，基本上是在原有岩心钻探设备条件下进行的所以仍然可以运用原来的设备。但由于液动冲击回转钻进规程有其自己的特点（如要求钻具的回转转速低、水泵的排量大以及泵压高等），所以需要对原用的设备作某些适当的改动。1．钻机以硬质合金磨料为主进行液动冲击回转钻进时，对所用钻机的要求并不高。用手轮式、油压立轴式、油压转盘式及钢丝绳加压的转盘式钻机都可以。但从
Eighteenth, hydraulic impact rotary cobalt into the original ground equipment needs to make any changes? A: At present, the hydraulic impact rotary drilling method adopted in China is basically carried out under the condition of the original core drilling equipment, so the original equipment can still be used. However, due to its own characteristics (such as requiring low rotary speed of the drilling tool, large displacement of the pump and high pump pressure), the hydraulic impact swing drilling procedure requires some appropriate changes to the original equipment. 1. Rig to carbide abrasive mainly hydraulic impact rotary drilling, the drilling rig requirements are not high. Hand wheel, hydraulic vertical shaft, hydraulic turntable and wire rope pressurized rotary drilling rig can be. But from