1. National Center for International Research on Deep Earth Drilling and Resource Development, Faculty of Engineering, China University of Geosciences, Wuhan 430074, China
2. Graduate School of Science and Technology for Innovation, Yamaguchi University, Yamaguchi 755-0097, Japan
3. CAS Key Laboratory of Gas Hydrate, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou Institute of Energy Conversion, Guangzhou 510640, China