钱家营矿地面井超前抽采瓦斯可行性研究

Feasibility Study on Advanced Gas Drainage from Surface Wells in Qianjiaying Coal Mine

针对钱家营矿向三水平延伸,瓦斯含量和瓦斯压力增大,煤矿安全生产风险突显的问题,通过井下观测和实验室测试等方法研究了钱家营矿主力煤层物性特征,认为钱家营矿4层主力煤层中7煤最具备地面井超前抽采瓦斯的地质条件。通过综合评价分析,认为钱家营矿地面井超前抽采治理瓦斯是可行的。

Because of the problem that Qianjiaying Coal Mine extends to the third level,the gas content and gas pressure increase,and the coal mine safety production risk is highlighted,the physical characteristics of coal seams are studied through underground coal wall observation,on-site collection of coal samples,and laboratory testing,It is considered that the Coal Seam 7 of the four main coal seams of the Qianjiaying Mine has the best geological conditions for advanced pumping of Watts by surface wells.Through comprehensive evaluation and analysis,it is concluded that it is feasible to extract and control gas in the surface shaft of Qianjiaying Mine.