Experimental Insights into Viscosifying Behavior of Polyacrylamide Relatedto Oil Recovery Applications

This study investigates the impact of polymer concentration, salinity, and magnesium presence onthe viscosifying behavior of HPAM solutions for oil recovery applications at ۸۰°C. ANOVA analysisof Herschel-Bulkley model parameters reveals polymer concentration as the dominant factor,significantly increasing yield stress (۷۷.۸%) and viscosity (۲۷.۶۲%). Salinity primarily affectsconsistency index (۷۷.۸%) and viscosity (۲۷.۶۲%), controlling shear-thinning behavior. Magnesiumcations, though subtle (۳-۵% contribution), has a statistically significant effect on all rheologicalparameters. The interplay between concentration and salinity significantly governs flowcharacteristics, highlighting the need for optimized HPAM concentration for specific reservoirs.Understanding the interplay's physical (entanglement) and chemical (electrostatic interactions)mechanisms is crucial for designing effective HPAM solutions for optimal EOR performance.

کلیدواژه ها:

Polymers for Enery Harvesting ، HPAM ، Rheology ، ANOVA ، Polymer Flooding ، OilRecovery