1. . . State Key Laboratory of Offshore Oil Exploitation, CNOOC, Beijing 100028, PR China
2. . . Research Institute of Exploration and Development, Xinjiang Oilfield Company, Petro China, Karamay 834000, PR China
3. . . Key Laboratory of Petroleum Drilling and Production, School of Petroleum Engineering, Yangtze University, Wuhan 430100, PR China
4. ..Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu 610500, PR China