1. School of Energy Resource, 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. Key Laboratory of Strategy Evaluation for Shale Gas, Ministry of Land and Resources, Beijing 100083, China
4. Coal Geological Geophysical Exploration Surveying & Mapping Institute of Shanxi Province, Shanxi 030600, China