Abstract:
Dagang Oilfield has entered the middle and high water cut development period, and the applica-tion of polymer flooding technology will be more and more extensive. However, at present, there are some prominent problems in the polymer injection zone, such as serious sand production in the polymer injection well and the decrease of the liquid amount after the sand control in the beneficial well. The effect of sand control is not ideal, and the effect of the polymer flooding zone is seriously restricted. By optimizing the sand control process of polymer flooding, the problem of sand production in the injection zone has been effectively solved, and good results have been achieved in field applications, resulting in better economic and social benefits.