1. Key Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education, Qingdao 266580, China
2. Research Center of Multiphase Flow in Porous Media, School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
3. School of Energy resources, China University of Geosciences (Beijing), Beijing 100083, China
4. Exploration and Development Research Institute of PetroChina Southwest Oil & Gas Field Company, Chengdu, 610041 Sichuan, China
5. Department of Geological and Mining Engineering and Sciences, Michigan Technological University, Houghton, Michigan, USA