Abstract
Abstract An experimental study was conducted to evaluate the effect of addition of alkali, salts and surfactants on the rheological properties of polyacrylamide (PAM) solution by rheometry. The results show the addition of inorganic salts (NaCl, Na2SO4, MgCl2), alkali (NaOH) and surfactants (CTAB, Gemini-5 and Gemini-6) strongly influence the rheological behavior of polyacrylamide solution. The shear thinning behavior of the solution at low shear rate was observed. The scope of this experimental work also includes the measurements of viscoelastic behavior, transient shear stress response and yield stress. The results are quite interesting and the mixed systems can be used as ASP flooding in Enhance oil recovery.
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