空气潜孔锤钻进典型事故原因分析及处理措施  

Analysis on the Causes of Typical Accidents of Air DTH Hammer Drilling and the Treatment Measures

作　　者：宋继伟[1] 赵华宣[2] 苏宁[3] 李奇龙 SONG Ji-Wei;ZHAO Hua Xuan;SU Ning;LI Qi-Long(112 Geological Team,Bureau of Geology and Mineral Exploration and Development of Guizhou Province,Anshun Guizhou 561000,China;114 Geological Team,Bureau of Geology and Mineral Exploration and Development of Guizhou Province,Zunyi Guizhou 563000,China;Bureau of Geology and Mineral Exploration and Development of Guizhou Province,Guiyang Guizhou 550008,China)

机构地区：[1]贵州省地质矿产勘查开发局112地质大队,贵州安顺561000 [2]贵州省地质矿产勘查开发局114地质大队,贵州遵义563000 [3]贵州省地质矿产勘查开发局,贵州贵阳550008

出　　处：《探矿工程（岩土钻掘工程）》2018年第5期22-28,共7页Exploration Engineering:Rock & Soil Drilling and Tunneling

基　　金：贵州省科技计划项目"煤系非常规天然气(煤系气)富集规律研究"(编号:黔科合[2016]支撑2807)

摘　　要：贵州省地质矿产勘查开发局就"贵州复杂地层深井钻探工艺应用研究"科研项目中"空气潜孔锤钻进技术"部分进行了试验研究,在试验过程中曾出现了锤头断裂、硬质合金齿折断、冲击器堵塞并阻卡、泥环包裹、卡埋钻、井眼弯曲等典型事故。详细分析了出现这些典型事故的原因,形成了避免和解决这些典型事故的系统技术措施。该成果经现场检验效果良好。本文对该成果进行了全面阐述,以期为同类施工提供借鉴。The research on＂Air DTH Hammer drilling technology＂was carried out by the Bureau of Geology and Mineral Exploration and Development of Guizhou Province,which was a part of the scientific research project of＂Application research on deep well drilling technology in Guizhou complex strata＂.During the test process,some typical accidents happened,such as the hammerhead fracture,hard alloy tooth fracture,impactor blockage and blocking,mud ring wrapping,drill pipe sticking burying and borehole bending.The causes of these typical accidents are analyzed in detail,and the systematic technical measures to avoid and solve these typical accidents have been formed.The results are proved good through field inspection and this paper gives a comprehensive elaboration on this achievement in order to provide reference for the similar construction.

关 键 词：潜孔锤钻进 孔内事故 处理措施 

分 类 号：P631.5[天文地球—地质矿产勘探]