1. School of Energy and Resources, China University of Geosciences (Beijing), Beijing 100083, China
2. Key Laboratory of Strategy Evaluation for Shale Gas, Ministry of Natural Resources, Beijing 100083, China
3. Petroleum Exploration and Production Research Institute, China Petroleum and Chemical Corporation (SINOPEC), No. 31 Xueyuan Road, Beijing 100083, China
4. School of Earth Sciences and Engineering, Xi’an Shiyou University, Xi’an 710065, China