1. Key
Laboratory of Coalbed Methane Resources and Reservoir Formation Process,
Ministry of Education, School of Mineral Resource and Geoscience, China University of Mining and Technology, Xuzhou 221116, China
2. School
of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, China
3. Low
Carbon Energy Institute, China University of Mining and Technology, Xuzhou 221116, China