1. School of Geoscience and Technology, Southwest Petroleum University, Chengdu, Sichuan, China
2. Key Laboratory of Natural Gas Geology, Southwest Petroleum University, Chengdu, Sichuan, China
3. State Key Laboratory of Reservoir Geology and Development Engineering, Southwest Petroleum University, Chengdu, Sichuan, China
4. No. 5 Oil Extraction Plant, Changqing Petroleum Exploration Bureau, Xi’an, Shanxi, China