1. Hubei Key Laboratory of Petroleum Geochemistry and Environment, Yangtze University, Wuhan 430100, China
2. Joint International Research Laboratory of Unconventional Energy Resources, Northeast Petroleum University, Daqing 163318, China
3. Key Laboratory of Continental Shale Hydrocarbon Accumulation and Efficient Development, Ministry of Education, Northeast Petroleum University, Daqing 163318, China