1. State Key Laboratory of Mechanical Transmission, School of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
2. Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China
3. Jinhai Oil Production Plant, PetroChina Liaohe Oilfield, Panjin 124000, China