突出区域煤层孔隙瓦斯赋存规律研究

论文以淮南矿业集团丁集煤矿突出煤层为试验点,采用压汞试验法对煤层孔隙进行研究,得出孔隙半径不同时,瓦斯赋存状态不同,游离和吸附的瓦斯含量也不同。在此基础上,利用高压容量法对煤样进行吸附试验,并结合工业分析结果,分析煤层瓦斯吸附量,根据丁集煤矿实际情况,考虑温度因素对瓦斯吸附试验的影响,为煤与瓦斯防突预测提供依据。

Research on Gas Deposit Rules of Coal Pore Structure in Gas Outburst Area

With outburst coal seam in Dingji Coal Mine of Huainan Mining Industry Group as test points,researches the coal seam pore by using pressure mercury testing method.The test results show that gas occurrence is different when pore radius is not the same,and free and adsorption gas content is different.On this basis,by high pressure capacity makes adsorption test of coal samples and combined with industrial analysis resuts,analyses the content of coal-bed methane adsorption,considers the effect of temperature on methane adsorption test according to the realities of Dingji Coal Mine,provides a basis for coal and gas outburst prediction.