4Wang D M. SPE Reservoir Engineering, 1997,11(4) :229 - 233
5Yang C Z,Han D, K. J Petro Sci Eng, 1991, (6) : 175
6Wang Y. Oil Gas : European Magazine, 1991,1 : 16
7Yang C Z Han D K. J Petro Sci Eng, 1998,6:374
8Han D K. The Achievements and Challenges EOR Technology for Onshore Oilfields in China. in:The ISth World Petroleum Congress,London : John Wiley & Sons, 1997
9Jeanes A, Pittsely J E, Senti F R. J Appl Polym Sci, 1961,5(17) :519