Shanxi Coal Geological Exploration and Painting Institute School of Geosciences and Information Physics, Central
South University Shanxi Research Institute of Geology and Mineral Resources MOE Key Lab of Coalbed Methane
Resources and Reservoir Formation Process, China University of Mining and Technology Department of Mining
Engineering, Xinjiang Institute of Engineering

为评价我国气、肥煤煤层气开发潜力,在全国范围收集了81件气、肥煤煤样的工业分析、显微煤岩组分数据,并进行了孔隙度、压汞和等温吸附测试,结果表明:我国气、肥煤多属于特低灰煤,气、肥煤各阶段孔隙发育较平衡,微孔最发育,其次为大孔和过渡孔。总比孔容和孔隙度随煤变质程度增加先减小后增大:0.65%

In order to evaluate the coalbed methane development potential of the gas coal and fat coal in China, the proximate analysis and macerals dataof 81 ga s and fat coal samples were collected from the national scope. The tests were conducted on the porosity, mercury injection and other isothermal adsorption.The results showed that the gas coal and fat coal in China mostly were the ultra low ash coal.The crack development of the gas coal and fat coal at each stage would be balance, t he micropore of the gas coal and fat coal would be best developed and the large pore and the transition pore would be the second.The total specific pore volume and th e porosity would be firstly reduced and then increased with the coal metamorphic degree increased.When 0.65%

山西省煤基重点科技攻关资助项目(MQ2014-02；2014012005)；新疆维吾尔自治区科技支疆资助项目(2013911039)；