1. Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi’an, Shaanxi province, People's Republic of China;
2. College of Chemistry and Chemical Engineering, Xianyang Normal University, Xianyang, Shaanxi province, People's Republic of China;
3. CNOOC Ener Tech-Drilling & Production Company, Tianjin, People's Republic of China