The results of core flooding experiment and the study of the propagation about the weak gel show that the agent has a high blocking rate and good selection which can modify the water profile well.

Meanwhile, it discusses the pattern cycle water injection rate and effect of cyclic water flooding in the pilot in western area of Fuyu Oil Field.

A numerical simulation of polymer linked profile control flooding was developed to study enhanced oil recovery mechanisms and to predict the recovery rate for polymer linked profile control flooding.