Investigations on the Influence of Aerobic and Rese rvoir Conditions on the Polyacrylamide Solution Viscosity

Polymers especially HPAM are being widely used to control the mobility ratio in secondary and tertiary oil recovery processes. The viscosity of a polymer solution is a strong function of solution conditions. This investigation presents experimental results of the effect of ambient conditions and mono and bivalent cation salts of the reservoir brine on the mobility of the injected polymer solution. Time dependence of fluid viscosity in the presence of oxygen and cation salts and in the absence of oxygen was also measured. The results of the experiments showed the polymer viscosity is reduced in the presence of oxygen and NaPP+, Ca2+, Mg2+ ions with time, while the viscosity reduction rate of the polymer in the anaerobic condition with with respect to time is very low.

کلیدواژه ها:

polyacrylamide ، viscosity reduction ، cations ، aerobic condition