1. School of Earth Science and Resources, Chang’an University, Xi’an 710054, China
2. Unconventional Oil & Gas Cooperative Innovation Center, China University of Petroleum, Beijing 102249, China
3. National Engineering Laboratory for Exploration and Development of Low Permeability Oil and Gas Fields, Xi’an 710018, China
4. Key Laboratory of Deep Oil and Gas, School of Geosciences, China University of Petroleum, Qingdao 266580, China
5. No.1 Gas Production Plant, PetroChina Changqing Oilfield Company, Xi’an 710018, China
6. College of Geophysics, China University of Petroleum, Beijing 102249, China