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我队外协钻机施工的新庄孜矿Ⅳ15号地质孔,于2012年3月30日开钻,当7月26日施工至1306m时,提钻因钻杆锁节磨损过大超出安全使用范围,提引器豁口磨损过大,锁节没有被提引器卡口卡牢,造成跑钻事故,孔内钻具1297m。迫于工期进度的要求,经与勘探处和矿方同意C13煤终孔。
I team outside the Association of drilling rig construction Xinzhuangzi Geological No. Ⅳ15 geological hole drilling on March 30, 2012, when the construction on July 26 to 1306m, due to excessive wear drill drill lock section beyond the safe use of the range, Lift the indexer wear too large, the lock is not card holder stuck stuck, resulting in running accident, hole drill 1297m. Due to the progress schedule requirements, with the exploration and mining side agreed C13 coal terminal hole.