可退式捞矛在重庆鱼泉锰矿ZK1010号孔孔内事故处理中的应用

Application of Releasing Fishing Spear in Dealing with Accidents in ZK1010 of Yuquan Manganese Mine in Chongqing

摘要:

重庆市秀山县鱼泉锰矿深部勘查ZK1010钻孔，钻进过程中常出现断杆事故，用常规公锥打捞，起钻中途常出现跑钻事故，使事故复杂化。最后采用可退式捞矛多次成功地处理了钻杆折断事故。结合该工程实例，介绍了可退式捞矛的工作原理及优点。

Abstract:

In the drilling process of ZK1010 which is a deep exploration hole of Yuquan manganese mine in Xiushan of Chongqing, drill pipe breaking often happened. Drill pipe falling often occurred during tripping out process, which made the accidents even worse. Finally, by the use of releasing fishing spear, the drill rod breaking is successfully handled for times. The paper introduces the releasing fishing spear about its working principle and advantages.