1. Xi’an Shiyou University, Xi’an 710065, China
2. CNOOC Research Institute, Beijing 100028, China
3. China University of Petroleum (East China), Qingdao 266580, China
4. Technology Monitoring Center of PetroChina Changqing Oilfield Company, Xi’an 710018, China
5. Sanya Offshore Oil and Gas Research Institute, Northeast Petroleum University, Sanya 572025, China