1. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100020, China
2. Southern Sichuan Gas District of PetroChina Southwest Oil & Gasfield Company, Luzhou 646000, China
3. Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
4. School of Geosciences, Yangtze University, Wuhan 430100, China