[1] Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou,510760, China
[2] Gas Hydrate Engineering Technology Center, China Geological Survey, Guangzhou,510760, China
[3] Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou,511458, China
[4] Center of Oil & Natural Gas Resource Exploration, China Geological Survey, Beijing,100083, China
[5] School of Energy Resources, China University of Geosciences, Beijing,100083, China
[6] State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing,102249, China