1. Shandong Key Laboratory of Oil-Gas Storage and Transportation Safety, China University of Petroleum (East China), Qingdao 266550, Shandong, China
2. College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266550, Shandong, China
3. Shenzhen Gas Corporation Ltd., Shenzhen 518049, Guangdong, China