1. School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
2. Key Laboratory of Unconventional Oil Gas Development, (China University of Petroleum (East China)), Ministry of Education, Qingdao 266580, China
3. National Key Laboratory of Deep Oil and Gas, China University of Petroleum (East China), Qingdao 266580, China
4. The Key Laboratory of Gas Hydrate, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China
5. PipeChina West-East Gas Pipeline Company, Beijing 100728, China