1. School of Energy Resources, China University of Geosciences (Beijing), Beijing 100083, China
2. Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Enrichment Mechanism, Ministry of Education, Beijing 100083, China
3. Beijing Key Laboratory of Unconventional Natural Gas Geological Evaluation and Development Engineering, Beijing 100083, China
4. PetroChina Huabei Oilfield Company, Renqiu 062550, China