煤矿安全2012，Vol.43Issue(9)：1-3,3.
应用水力压裂技术提高单一低渗煤层瓦斯抽采效果
Using Hydraulic Fracturing Technology to Improve Gas Extraction Effect of Single Low- Permeability Coal Seam
唐远游 1陶云奇2
作者信息
- 1. 河南煤业化工集团有限责任公司,河南郑州450046
- 2. 河南煤业化工集团有限责任公司,河南郑州450046 永城煤电控股集团有限公司博士后科研工作站,河南永城476600
- 折叠
摘要
Abstract
Aiming at the problem of gas extraction difficulties in single low - permeability coal seam, the method of using hydraulic frac- turing technology to fracture coal seams and increase permeability is proposed, which can improve the effects of gas extraction. Taking 33071 drainage roadway in Hebi Zhongtai mining industry as the test point, through investigating parameters changing situations of drill- ing gas flow, gas extraction concentration and drainage flow before and after fracturing in hectometer boreholes, the results show that gas flow in hectometer boreholes is improved from 1.80 to 2.68 times ; single - hole extraction concentration and flow are increased 7. 5 times and 95 times respectively; seam permeability coefficient is increased by 9 to 18 times, while the attenuation coefficient is de- creased from 210% to 280%.关键词
水力压裂/瓦斯抽采/低渗煤层/增透Key words
hydraulic fracturing/gas extraction/low permeability coal seams/increasing permeability分类
矿业与冶金引用本文复制引用
唐远游,陶云奇..应用水力压裂技术提高单一低渗煤层瓦斯抽采效果[J].煤矿安全,2012,43(9):1-3,3.
