1. School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
2. Collaborative Innovation Center of Coalbed Methane and Shale Gas for Central Plains Economic Region, Jiaozuo, Henan 454000, China
3. Key Laboratory of Tectonics and Petroleum Resources, China University of Geosciences, Ministry of Education, Wuhan 430074, China
4. Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, China