作者单位:Wenfeng Wang,Weiduo Hao,Yong Qin(Department of Source and Earth Science, China University of Mining and Technology, Xuzhou 221008, Jiangsu Province, China;Key Laboratory of Coalbed Methane Resource and Reservoir Formation Process, China University of Mining and Technology,Ministry of Education, Xuzhou 221008, Jiangsu Province, China)Jian Li(Shanxi Institute of coal research, Taiyuan 030000, Shanxi Province, China)