Jianzhen Chen¹, Yongli Wang², Zhifu Wei³, Gen Wang³, Mingzhen Zhang³, Pengyuan Zhang⁴, Xueyun Ma³, Zengguang Guo², Qian Ming², Gaofeng Kang² and Kai Yan², (1)Institute of Geology and Geophysics, Chinese Academy of Sciences and Northwest Institute of Eco-Environment and Resources, Beijing, China, (2)Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China, (3)Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China, (4)Research Institute of Petroleum Exploration and Development, China National Petroleum Corporation, Beijing, China