摘要
针对超长工作面瓦斯区域超前治理需要,分析了施工顺煤层超长定向钻孔对关键钻进装备的技术要求,总结对比了国内外几款典型的顺煤层超长孔定向钻进关键装备性能特点。结合保德煤矿超长工作面生产需要,优选钻进装备在保德煤矿二盘区开展了工程实践,完成了3个孔径120mm、孔深2000m以上的顺煤层超长定向钻孔,其中最大孔深达到2570m,创造了煤矿井下顺煤层定向钻孔深度的新纪录。结合钻进工艺参数及测量数据,分析了关键装备的应用效果和局限性,对进一步提高顺煤层超长定向钻孔装备能力进行了展望。
Aiming at the need of regional and advance gas teatment in ultra-long working face,we analyze the technical requirements of key drilling equipment for ultra-long directional drilling along coal seam,summarize and compare the performance characteristics of several typical key drilling equipment for ultra-long directional drilling along coal seam in domestic and abroad.According to the production requirement of ultra-long working face in Baode Coal Mine,optimize the drilling equipment and carry out the engineering practice in the second panel area of Baode Coal Mine.Three ultra-long directional boreholes with diameter of 120 mm and depth of more than 2000 m have been completed,among which the maximum borehole depth is 2570 m,creating a world record of the depth of directional boreholes along coal seam in coal mine.The drilling process parameters and measurement data are combined,the application effect and limitation of key equipment are analyzed,and the prospect for further improving the capability of ultra-long directional drilling equipment along coal seam is presented.
作者
王鲜
许超
刘飞
姜磊
毕志琴
WANG Xian;XU Chao;LIU Fei;JIANG Lei;BI Zhi-qin(CCTEG Xi’an Research Institute,Xi’an 710077,China)
出处
《煤炭工程》
北大核心
2019年第11期46-50,共5页
Coal Engineering
基金
国家科技重大专项资助课题(2016ZX05045-003)
中国煤炭科工集团西安研究院有限公司科技创新资助项目.
关键词
顺煤层钻孔
超长定向钻孔
钻进装备
钻进效果
drilling along coal seam
ultra-long directional drilling
drilling equipment
drilling effect
作者简介
王鲜(1991—),男,陕西咸阳人,硕士,助理研究员,主要从事钻探工艺技术研发及推广工作,E-mail:wangxian@cctegxian.com。
