In this paper,borehole accident condition for the 40104 working face transport tunnel in a mine was introduced,the possible reasons for borehole accident were analyzed,drilling tool fishing projects were analyzed and optimized.
针对大佛寺矿40104工作面运顺钻孔抱钻、掉钻事故的具体状况,经分析钻孔事故发生的可能原因,对钻具打捞方案进行分析优选,通过理论分析与现场实践相结合,成功打捞了孔内钻具,为采煤排除了安全隐患。
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