The Openness Degree Study of the Jiaoshiba Shale Gas, Sichuan Basin, China–Potential Factor Responsible for Reversed Isotope Series

Heng ZHAO

Key Laboratory of Mineral Resources in Coal Measures, China National Administration of Coal Geology, Key Laboratory of Shale Gas, China National Administration of Coal Geology, Jiangsu Geology and Mineral Resources Design and Research Institute, Xuzhou 221006 Jiangsu, China

Gansu Provincial Key Laboratory of Petroleum Resources, Key Laboratory of Petroleum Resources Research, Lanzhou Center for Oil and Gas Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 730000 China

Wuxi Research Institute of Petroleum Geology, Sinopec Petroleum Exploration & Production Research Institute, Wuxi 214151 Jiangsu, China

University of Chinese Academy of Sciences, Beijing 100049 China

Corresponding Author

Wenhui LIU

• [email protected]

Northwest University, Xian 710069 China

Xiaofeng WANG

Northwest University, Xian 710069 China