1. Chinese Academy of Sciences, Key Laboratory of Petroleum Resource Research, Institute of Geology and Geophysics, 19 Beitucheng Western Road, Chaoyang District, Beijing 100029, China, Chinese Academy of Sciences, Institutions of Earth Science, 19 Beitucheng Western Road, Chaoyang District, Beijing 100029, China, and University of Chinese Academy of Sciences, 19(A) Yuquan Road, Shijingshan District, Beijing 100049, China..
2. China University of Petroleum (East China), Key Laboratory of Deep Oil and Gas, 66 Changjiang West Road, Huangdao District, Qingdao 266580, China.(corresponding author).