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Accurate determination of polymer properties in porous media Is an Important Input requirement of the reservoir simulation of polymer EaR. Data pertaining to In-situ viscosity and polymer retention are essential parameters which will govern the performance and economics of the application. At reservoir conditions, the acqUisition of relevant and precise data Is not a straight forward process, but one where extremely careful and reproducible corefloodlng experiments are required. We address the question of coreflood procedures best suited to evaluate polysaccharide polymers for field application.