1. National Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing 102249, China
2. Unconventional Petroleum Research Institute, China University of Petroleum (Beijing), Beijing 102249, China
3. Zhanjiang Branch of China National Offshore Oil Corporation, China National Offshore Oil Corporation, Zhanjiang 524057, China
4. Shale Gas Research Institution, PetroChina southwest Oil & Gasfield company, Chengdu City, Sichuan Province 6100051, China
5. School of Geoscience and Technology, Southwest Petroleum University, Chengdu City, Sichuan Province 610500, China