1. State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum, Beijing 102249, PR China
2. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, PR China
3. School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China
4. Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta, Canada T2N 1N4