复杂地质条件下近水平钻孔孔内事故发生原因分析

Cause analysis of near horizontal hole drilling accident under complicated geological conditions

随着近几年煤矿防治水形势的日益严峻,煤矿坑道底板超前钻孔做为矿井水害防治的重要手段,钻探工程量逐年增加。针对在复杂地质条件下近水平钻孔施工过程中造成钻孔孔内事故影响钻探施工的内因和外因进行了逐一分析,并给出了相应的措施,保证复杂地质条件下近水平钻孔的施工安全,提高钻探效率。

With the increasingly serious situation of prevention and control of mine water,the pre-drilling as an important means of mine disaster prevention,drilling engineering increasing year by year,due to drilling hole accidents under complicated geological conditions in horizontal drilling process,the influence of drilling construction of internal and external causes were analyzed one by one,and the corresponding measures to ensure the safety of construction of nearly horizontal drilling under complicated geological conditions were given to improve drilling efficiency.