1. Key Laboratory of Petroleum Resources Research; Institute of Geology and Geophysics; Chinese Academy of Sciences; No. 19, Beitucheng Xilu Chaoyang District Beijing 100029 China
2. University of Chinese Academy of Sciences; Beijing 100049 China
3. Wuxi Research Institute of Petroleum Geology; SINOPEC; Wuxi 214151 China
4. Department of Geology; University of Regina; Regina SK S4S0A2 Canada