空气潜孔锤反循环钻进技术在矿山应急救援中的应用研究

Application Research of Air DTH Reverse Circulation Drilling Technology at the Mine Emergency Rescue

当煤矿井下发生透水、火灾、冒顶等事故后,迅速打通隔离层,进行紧急救援,对降低事故伤亡率、减少经济损失,具有重大意义。然而在应急救援中会遇到地层破碎、裂隙发育等情况采用常规钻进技术钻速慢、效率低、意外因素多等问题,影响救援。针对这些特点,文章提出采用空气反循环潜孔垂快速钻孔方法用于应急救援。

When the coal mine flooding,fire,roof collapse and other accidents,quickly get through isolation layer,emergency rescue,to reduce the casualty rate,reduce economic losses have great significance.However,in emergency rescue formations encountered broken,fractured,etc.Using conventional drilling techniques drilling speed is slow,inefficient,unexpected factors and other issues affecting the rescue.For these characteristics,the paper proposed that the use of air DTH reverse circulation drilling method for rapid vertical emergency rescue was effective.