1. Academe of Geoscience, Shandong University of Science and Technology, 271019 Taian, Shandong, P. R. China
2. Basin and Reservoir Research Center, University of Petroleum, Beijing, Shuiku Road, Changping, Beijing, 102200, P. R. China
3. China University of Geoscience (Beijing), Xueyuan Road, Haiding Qu, Beijing, 100083
4. Petroleum Exploration Institute of Sinopec, Xueyuan Road, Haiding Qu, Beijing, 100083