1. School of Chemistry and Materials Science
2. Heilongjiang University
3. Harbin 150080
4. P. R. China
5. Key Laboratory of Colloid
6. Interface and Chemical Thermodynamics
7. Institute of Chemistry
8. Chinese Academy of Sciences
9. Beijing 100190
10. Key Laboratory of Oilfield Chemistry
11. Research Institute of Petroleum Exploration and Development (RIPED)
12. CNPC
13. Beijing 100083