1. Graduate Student, BIC-ESAT, ERE and SKLTCS, College of Engineering, Peking Univ., No. 5 Yiheyuan Rd., Haidian District, Beijing 100871, P.R. China.
2. Professor, BIC-ESAT, ERE and SKLTCS, College of Engineering, Peking Univ., No. 5 Yiheyuan Rd., Haidian District, Beijing 100871, P.R. China (corresponding author).
3. Undergraduate Student, BIC-ESAT, ERE and SKLTCS, College of Engineering, Peking Univ., No. 5 Yiheyuan Rd., Haidian District, Beijing 100871, P.R. China.
4. Undergraduate Student, Yuanpei College, Peking Univ., No. 5 Yiheyuan Rd., Haidian District, Beijing 100871, P.R. China.
5. Senior Engineer, State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, SINOPEC Group, Beijing 100083, P.R. China.