Determination Of Rheological Properties Of Polymer Solutions In Sandpacks

Abstract

There is a correlation between mobility ratio and oil recovery by water displacement in homogeneous and heterogeneous reservoirs. Because of this correlation, it is essential to develop a mobility control process which would be based on the behavior of the mobility ratio factor. It appears that polymer solution is an ideal additive to control the mobility ratio in the operation of waterfloods. This paper describes the rheological behavior of polymer solutions in sand packs and frontal advance rates. Empirical correlations have been developed experimentally to estimate polymer mobility and displacement efficiency in porous medium. The correlations are based on petrophysical properties of the medium, polymer concentration and polymer rheological parameters.