煤矿井下取心钻进技术与装备研究现状及发展趋势  

Research status and development direction of coring drilling technology and equipment in coal mine

作　　者：杨冬冬 赵江鹏 王四一 YANG Dong-dong;ZHAO Jiang-peng;WANG Si-yi(xi'an Research Institute Co.,Ltd.,China Coal Technology and Engineering Group,Xi'an 710077,China)

机构地区：[1]中煤科工集团西安研究院有限公司,陕西西安710077

出　　处：《煤炭工程》2021年第6期176-181,共6页Coal Engineering

基　　金：国家科技重大专项任务(2016ZX05067-001-003);晋煤集团公司技术委托合作开发项目(JMJS-JSKF-2017-0006)。

摘　　要：为了测定煤层瓦斯含量、查明煤层顶底板含水层分布和富水性以及工作面地质异常体赋存情况,均需要通过钻探取心获得符合相关规定的煤心、煤样及岩心。文章根据煤矿井下取心钻孔施工工艺及装备的发展情况,结合密闭取心技术、绳索取心技术及水力反循环连续取心技术,介绍了煤矿井下获取煤层、岩层相关地质信息的主要技术方法,概述了各自的技术原理、相关配套装备、应用情况,结合上述3种煤矿井下取心钻进技术在各个矿区的应用情况,总结了上述3种取心技术在煤矿井下应用的技术难点。最后指出煤矿井下取心钻进技术的研究前景及发展趋势,并为加速煤矿井下取心技术的发展提出了相关建议,为煤矿井下取心钻进技术的发展提供参考。In order to measure the content of coal seam gas, find out the distribution of aquifer, the water-rich features in the roof and floor of coal seam and the occurrence of geological abnormal body on working face, it is necessary to obtain the coal core, coal sample and rock core in accordance with relevant regulations through drilling coring. According to the development of coring drilling technology and equipment in coal mine, combining with sealed coring technology, wireline coring technology and hydraulic reverse circulation coring technology, the main technical methods are introduced which can gain related geological information of coal seam and rock formations in coal mine, the technical principle, auxiliary equipment and application situation are summarized, and the technical difficulties of above three kinds of coring drilling technology are analyzed combining with specific application of above three kinds of coring drilling technology in the underground coal mine. Finally, the research prospects and development direction of coring drilling technology in coal mine are pointed out and relevant suggestions are provided to accelerate the development of coring drilling technology in coal mine.

关 键 词：密闭取心 绳索取心 水力反循环连续取心 

分 类 号：TD41[矿业工程—矿山机电]