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. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China
5. Center of Oil & Natural Gas Resource Exploration, China Geological Survey, Beijing, 100083, China
6. School of Energy Resources, China University of Geosciences, Beijing, 100083, China