In recent years, the technology of high concentration polymer flooding has received wide attention and detailed study, due to the large extent of enhancing oil recovery, the relative simplicity of technology and less damage to the reservoir. So domestic and foreign oil workers pay wide attention to and focus on the technology and show a good prospect. In this paper, with the analysis of the injected situation of high concentration polymer flooding, mined case, oil use conditions as well as the effective features of high concentration polymer flooding and other aspects, sums up the development effect of high concentration polymer flooding in the Daqing oilfield, then put forward the limitation parameter of permeability and connectivity ratio for the high concentration of polymer flooding applications in the Daqing oilfield. The purpose is to provide experience for other fields, which are now applying the technology of high concentration polymer flooding.
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