1. Key Laboratory of Unconventional Oil & Gas Development (China University of Petroleum (East China)), Ministry of Education, Qingdao, Shandong 266580, People’s Republic of China
2. School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, People’s Republic of China
3. Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, People’s Republic of China
4. School of Chemical and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, People’s Republic of China