1. National Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
2. School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China
3. PetroChina Southwest Oil and Gas Field Company, Chengdu 610051, China
4. Research Institute of Exploration and Development, PetroChina, Beijing 100083, China
5. Research Institute of Shale Gas, PetroChina Southwest Oil & Gas Field Company, Chengdu 610500, China
6. Institute of Exploration and Development, Shengli Oil Field, SINOPEC, Dongying 257015, China
7. National Key Laboratory of Deep Oil and Gas, China University of Petroleum (East China), Qingdao 266580, P.R. China