1. School of Resources & Environment, Henan Polytechnic University, Jiaozuo 454000, China
2. Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Henan Polytechnic University, Jiaozuo 454000, China
3. Henan International Joint Laboratory for Unconventional Energy Geology and Development, Henan Polytechnic University, Jiaozuo 454000, China
4. Collaborative Innovation Center of Coalbed Methane and Shale Gas for Central Plains Economic Region, Henan Province, Henan Polytechnic University, Jiaozuo 454000, China
5. Gas Geology and Engineering Research Center, Henan Polytechnic University, Jiaozuo 454000, China
6. Department of Energy and Mineral Engineering, G3 Center and Energy Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States