1. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China
2. Unconventional Oil and Gas Science Technology Research Institute, China University of Petroleum (Beijing), Beijing 102249, China
3. Department of Earth Sciences, Simon Fraser University, Burnaby V5A1S6, Canada
4. School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610000, China