1. State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, Beijing 100083, China
2. Sinopec Key Laboratory of Shale Oil/Gas Exploration and Production Technology, Beijing 100083, China
3. Unconventional Petroleum Research Institute, China University of Petroleum (Beijing), Beijing 102249, China
4. No. 7 Oil Production Plant, PetroChina Changqing Oilfield Company, Qingyang 745700, China