1. State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Sinopec Petroleum Exploration and Production Development Research Institute, Beijing 100083, China
2. Unconventional Oil and Gas Science and Technology Institute, China University of Petroleum (Beijing), Beijing 102249, China
3. School of Petroleum Engineering, Yangtze University, Wuhan 430100, China
4. Department of Geosciences, University of Padova, 35131 Padova, Italy