HIGHLIGHTS
SUMMARY
The principle of the polymer zone is to increase the hydraulic viscosity through the polymer and thus achieve better recovery. Due to various factors, the viscosity of polymer solution decreases and viscosity loses in the process of water injection, which seriously affects the production effect of oilfield. Viscosity loss According to the research on polymer flooding oil system over the years, it is found that the viscosity of crude oil in polymer flooding oil system is 5% to 15%, with an average of 9.8%. Through the analysis of the experimental results, it is . . .
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