Suggestions on further study on EOR In Daqing oilfield

According to the existing EOR work in Daqing oilfield and its problems, this paper illustrates the important points of the further study. For polymer flooding, numerical simulation technology should be used to consider comprehensively well arrangement, profile control, polymer injection and successive water flooding. The tracking and adjustment in the process of polymer injection must be strengthened, and the polymer flooding control of salt-resistance polymer, CDC and pre-crosslinked body must also be strengthened. It proposes the direction of the study on the geology, laboratory experiment and numerical simulation of the polymer flooding of the second type of the reservoirs. For chemical compound flooding, it emphasizes the combination among core study, numerical simulation and pilot test, and secondary mechanism study in the view of reservoir engineering. Finally, it stresses on the feasibility of foam compound flooding, MEOR and thermal flooding after polymer flooding.