可控冲击波增透保德煤矿8~#煤层的先导性试验  

Preliminary Tests of Coal Reservoir Permeability Enhancement by Controllable Shock Waves in Baode Coal Mine 8~# Coal Seam

作　　者：张永民[1,2] 安世岗 陈殿赋 师庆民[4] 张增辉[3] 赵有志 罗伙根[3] 邱爱慈[1,2] 秦勇[4] ZHANG Yongmin;AN Shigang;CHEN Dianfu;SHI Qingmin;ZHANG Zenghui;ZHAO Youzhi;LUO Huogen;QIU Aici;QIN Yong(State Key Laboratory of Electrical Insulation and Power Equipment,Xi’an Jiaotong University,Xi’an 710049,China;State Key Laboratory of Intense Pulsed Radiation Simulation and Effect,Northwest Institute of Nuclear Technology,Xi’an 710024,China;Shenhua Shendong Coal Group Corporation Limited,Yulin 719315,China;Key Laboratory of CBM Resources and Reservoir Process,Ministry of Education,China University of Mining and Technology,Xuzhou 221008,China)

机构地区：[1]西安交通大学电力设备电气绝缘国家重点实验室,陕西西安710049 [2]西北核技术研究所强脉冲辐射环境模拟与效应国家重点实验室,陕西西安710024 [3]神华神东煤炭集团有限公司,陕西榆林719315 [4]中国矿业大学煤层气资源与成藏过程教育部重点实验室,江苏徐州221008

出　　处：《煤矿安全》2019年第10期14-17,21,共5页Safety in Coal Mines

基　　金：国家自然科学基金煤炭联合基金重点资助项目（U13612031）;“十二五”国家科技支撑计划资助项目（2012BAK04B02）

摘　　要：介绍了可控冲击波技术在保德煤矿的煤层增透先导性试验。试验设计了1个试验孔,2个近区观测孔和2个远区观测孔,对作业有效增透区域进行分析。试验结果表明:试验孔近区1号和2号观测孔瓦斯抽采量显著增加且呈明显的递增趋势,远区3号和4号观测孔瓦斯抽采量虽显著增加但递增不明显;揭示可控冲击波作业后裂隙场在近区发育丰富,远区相对较少的增透特点;初步确定冲击波致裂增透煤层的有效半径大于15m。通过数据对比分析证明冲击波增透煤层存在最佳作用次数。This paper presented a series of preliminary tests to enhance the coal seams permeability of Baode Mine with CSW technology.One test hole,two observation holes in the near area and two observation holes in the far area were designed to analyze the effective permeability improvement area.The results show that the gas extraction from 1^#and 2^#holes near the test increases significantly and presents an obvious increasing trend,while the gas extraction from 3^#and 4^#holes in the far area increases significantly,but the increase values are not significantly.It is revealed that the crack field after controlled shock wave operation has abundant development in the near region and relatively few permeability improvement characteristics in the far region.It is preliminarily determined that the effective radius of shock-induced crack permeability improvement coal seam is greater than 15 m.Through data comparison and analysis,it is proved that there are optimal times of action of shockwave permeability improvement coal seam.

关 键 词：可控冲击波 煤层增透 裂隙场 瓦斯抽采 煤层钻孔 

分 类 号：TD712[矿业工程—矿井通风与安全]