煤矿安全2017，Vol.48Issue(7)：70-73,77,5.DOI:10.13347/j.cnki.mkaq.2017.07.018
松软突出煤层采煤工作面水力压裂增透技术应用
Application of Hydraulic Fracturing and Permeability Improvement Technology in Mining Face of Soft Outburst Coal Seam
甘林堂 1刘吉祥1
作者信息
- 1. 淮南矿业集团安全监察局,安徽淮南232001
- 折叠
摘要
Abstract
In order to solve the problems of poor permeability in outburst coal seam,small gas flow of drilling extraction in original coal seam and long pre-pumping time in Huainan Coal Mine,we carried out a study of hydraulic fracturing and permeability improvement technology.The experiment was carried out in 1351 (3) working face,and the effect of hydraulic fracturing was investigated.Experiments show that hydraulic fracturing and permeability improvement technology can expand the pores and cracks in the coal seam,increase the permeability of coal seam,and the hydraulic fracturing radius is not less than 60 meters;compared with the original coal area affected by hydraulic fracturing,the single-hole extraction rate increased by 260％,and the net amount per unit area increased by 45％,the drilling volume reduced by 40％.关键词
水力压裂/采煤工作面/增透/瓦斯抽采/松软突出煤层Key words
hydraulic fracturing/coal mining working face/permeability improvement/gas extraction/soft and outburst coal seam分类
矿业与冶金引用本文复制引用
甘林堂,刘吉祥..松软突出煤层采煤工作面水力压裂增透技术应用[J].煤矿安全,2017,48(7):70-73,77,5.
