煤矿安全2017，Vol.48Issue(4)：9-12,4.DOI:10.13347/j.cnki.mkaq.2017.04.003
水力压裂增透技术在鱼田堡煤矿低透气性突出煤层中的试验研究
Experimental Study on Hydraulic Fracturing Technology in Outburst Coal Seam with Low Permeability in Yutianbao Mine
袁光明 1陈玉涛 2田卫东 1黄文祥1
作者信息
- 1. 重庆工程职业技术学院,重庆400037
- 2. 中煤科工集团重庆研究院有限公司,重庆400039
- 折叠
摘要
Abstract
To solve the problems of low seam permeability,poor drainage effect after the implementation of a single through beds hole and hydraulic fracturing technology,lack of regional outburst prevention measures implementation and causing larger blank space,high pressure hydraulic fracturing permeability increasing technology is carried out in 5# coal seam of 34 zone-350 m west drainage roadway.A suitable hydraulic fracturing process for Yutianbao Coal Mine is determined;the parameter p,of the injection pressure theoretical calculation formula should be about 10％ to 15 ％ of the maximum pumping pressure.Hydraulic fracturing effect analysis showed that within the effective impact range of hydraulic fracturing,the average moisture content of coal seam is 2.15 times that of the original,the average permeability coefficient is 112 times that of the original,the average gas drainage concentration is 2.3 times that of the original,the average gas drainage scalar is 3.9 times that of the original.According to the comprehensive analysis of gas drainage concentration,gas drainage scalar,moisture content,permeability coefficient,as well as other parameters,the effective scope of the single-hole hydraulic fracturing along the trend of the coal seam is about 50 meters.关键词
低透气性煤层/水力压裂/工艺参数/瓦斯抽采/效果分析Key words
low permeability coal seam/hydraulic fracturing/process parameter/gas drainage/effect analysis分类
矿业与冶金引用本文复制引用
袁光明,陈玉涛,田卫东,黄文祥..水力压裂增透技术在鱼田堡煤矿低透气性突出煤层中的试验研究[J].煤矿安全,2017,48(4):9-12,4.
