1. Department of Civil and Environmental Engineering, School of Mining and Petroleum Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
2. Engineering Technology Research Institute of Xinjiang Oilfield Company, Karamay 834000, China
3. School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
4. Beijing Key Laboratory of Unconventional Natural Gas Geology Evaluation and Development Engineering, China University of Geosciences (Beijing), Beijing 100083, China