摘要
辛安矿216采区水害区域治理工程中,?178 mm×8.05 mm二开套管的切割、起拔是一项关键性节点的施工工艺。通过采用ND-178型机械式内割刀对二开套管进行切割施工,已成功完成6个分支钻孔的套管切割,且将切割点上部的套管全部拔出孔外。结合工程实例,重点介绍了该割刀的结构和工作原理,以及性能特点,分析了该割刀在施工过程中切割工艺参数的控制。
The cutting and drawing of Ф178 mm×8.05 mm second opening casing is a key node constructi on technology in regional control project of Xin＇an Mine 216 mining area water hazard.Through the use of ND-178 mechanical internal cutter on the second opening casing cutting construction,six branch drilling casing were successfully cut,and all cutting the upper part of the casing were pulled out the drilling.Combined with practical work,the structure and working principle of the cutter,as well as the c haracteristics of the cutter are introduced,and the control of the cutting process parameters is analyzed.
出处
《煤矿机械》
2017年第2期144-146,共3页
Coal Mine Machinery
关键词
机械式内割刀
煤矿水害区域治理
顶驱钻机
套管
分支钻孔
mechanical internal cutter
regional control of coal mine water hazard
top drive rig
casing
branch drilling
