“两堵一注”封孔工艺在银北矿区的应用研究  

Application research of "two sealing and one injection" hole sealing technology in Yinbei Mining Area

作　　者：徐宁武 孙炳兴[2,3] Xu Ningwu;Sun Bingxing(Ningxia Coal Industry Co.,Ltd.,CHN Energy,Yinchuan 750004,China;State Key Laboratory of Gas Disaster Monitoring and Emergency Technology,Chongqing 400037,China;Chongqing Research Institute,China Coal Technology and Engineering Group,Chongqing 400037,China)

机构地区：[1]国家能源集团宁夏煤业有限责任公司,宁夏银川750004 [2]瓦斯灾害监控与应急技术国家重点实验室,重庆400037 [3]中煤科工集团重庆研究院有限公司,重庆400037

出　　处：《能源与环保》2019年第8期11-14,共4页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：国家重点基础研究发展计划(973计划)资助项目(2012CB724206);国家能源集团科技创新项目(SHGF-18-87)

摘　　要：针对银北矿区抽采钻孔普遍存在封孔质量差、抽采浓度低及有效抽采时间短的难题,通过理论分析和现场试验,确定了“两堵一注”带压封孔的工艺技术参数。研究结果表明,赛瑞封孔剂结合“两堵一注”的封孔工艺克服了原封孔工艺中存在的弊端,加长了封孔深度和封孔长度,有效提高了煤层瓦斯的抽采效果,具有较好的适用性。Aiming at the problems of poor quality of sealing hole,low concentration of extraction and short effective extraction time in Yinbei Mining Area,through theoretical analysis and field test,the technological parameters of "two sealing and one injection" were determined.The results proved that the technology of "two sealing and one injection" combined with Sairui pore sealing agent overcomed the disadvantages of the original technology,lengthened hole sealing depth and length and it can effectively improve the extraction effect of coal seam gas and has good applicability.

关 键 词：瓦斯抽采 “两堵一注” 封孔工艺 封孔深度 

分 类 号：TD712.6[矿业工程—矿井通风与安全]