1. College of Environmental Science and EngineeringOcean University of ChinaQingdao 266100 Shandong China
2. Laboratory for Marine Mineral ResourcesPilot National Laboratory for Marine Science and Technology (Qingdao)Qingdao 266071 Shandong China
3. The Key Laboratory of Gas Hydrate, Ministry of Natural ResourcesQingdao Institute of Marine GeologyQingdao 266071 Shandong China
4. Drilling Technology Research Institute of Shengli Petroleum Engineering Corporation LimitedSINOPECDongying 257017 Shandong China
5. Linyi UniversityLinyi 276000 Shandong China