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液动冲击回转钻进是对付坚硬和复杂岩层的先进钻探技术,可以提高钻进效率和钻头寿命,具有较好的防斜效果。在河南省舞阳铁山矿区的勘察钻进中,冲击回转钻进解决了在钻进倾角较大、软硬不均、互层频繁的条带状混合花岗岩地层中的技术难题,提高了钻进效率,有效地防止了钻孔的偏斜。
Hydraulic impact rotary drilling is an advanced drilling technology to deal with hard and complex rock formations, which can improve drilling efficiency and bit life, and has better anti-skew effect. In the investigation and drilling of the Tieshan mining area in Wuyang of Henan Province, impact rotary drilling has solved the technical problems in strip-shaped mixed granite strata with large dip angle, soft and hard unevenness and frequent interbed, and improved drilling Efficiency, effectively preventing the deviation of drilling.