山东煤炭科技2024，Vol.42Issue(2)：73-77,5.DOI:10.3969/j.issn.1005-2801.2024.02.016
鹤煤三矿41采区煤层增透与瓦斯抽采技术研究
Research on Coal Seam Permeability Enhancement and Gas Extraction Technology in the No.41 Mining Area of Hemei No.3 Mine
尚有仕 1祁乐1
作者信息
- 1. 鹤壁煤电股份有限公司第三煤矿,河南 鹤壁 458000
- 折叠
摘要
Abstract
In view of the drawbacks of traditional drilling technology in the construction of cross layer drilling hole in Hemei No.3 Mine,such as heavy drilling workload,relatively high density of drilling hole layout,and relatively low gas extraction efficiency,an in-depth analysis of coal seam occurrence conditions is conducted.The optimization of extraction process and the method of whole process sieve tube fixing hole are studied to determine the layout form of cross layer drilling hole.Hydraulic punching is implemented through the method of bottom drainage roadways cross layer drilling hole to achieve rapid governance of gas disasters.The practice shows that under the same conditions,implementing cross layer drilling hole hydraulic punching technology can significantly increase the concentration of gas extraction in a single hole,fully release coal seam gas,significantly increase the number and permeability of coal seam cracks,effectively change the initial gas distribution condition,eliminate the phenomenon of stress concentration in coal seams in new built working faces,and achieve the purpose of preventing and controlling gas outbursts.关键词
区域性防突/瓦斯抽采/水力冲孔/卸压增透Key words
regional outburst prevention/gas extraction/hydraulic punching/pressure relief and permeability enhancement分类
矿业与冶金引用本文复制引用
尚有仕,祁乐..鹤煤三矿41采区煤层增透与瓦斯抽采技术研究[J].山东煤炭科技,2024,42(2):73-77,5.
