1. School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, People’s Republic of China
2. Key Laboratory of Unconventional Oil & Gas Development, Ministry of Education, Qingdao, Shandong 266580, People’s Republic of China
3. Hildebrand Department of Petroleum and Geosystems Engineering, The University of Texas at Austin, Austin, Texas 78712, United States