1. College
of Energy Resources, Chengdu University of Technology, Chengdu, Sichuan 610059, P. R. China
2. Post-Doctoral
Research Cente, Tarim Oilfield Company, PetroChina, Korla, XinJiang 841000, P. R. China
3. Research Institute
of Petroleum Engineering, Sinopec, Beijing 100101, P. R. China