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Effect of carbon dioxide on rheological properties and structure of polyacrylamide solutions

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Abstract

The effect of CO2 on rheological properties and structure of polyacrylamide solutions was studied as a function of pressure, treating time, polymer type and presence of inorganic electrolytes and natural formation rocks. It was found that the serious deterioration of the solution viscosity can be attributed mostly to the change of the solution structure, while the actual molecular degradation plays negligible role in the process. The phenomena are explained by modification of the dissociation equilibrium of poly-electrolytes in presence of high hydrogen ion concentration. The experimental results may contribute significantly to elaboration of new stabilization concepts in special enhanced oil recovery technologies based on joint application of carbon dioxide and polymers.

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Authors and Affiliations

  1. Research Laboratory for Mining Chemistry, Hungarian Academy of Sciences, P.O. Box 2, 3515, Miskolc-Egyetemvaros, Hungary

    I. Lakatos & J. Lakatos-Szabó

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  1. I. Lakatos
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  2. J. Lakatos-Szabó
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Lakatos, I., Lakatos-Szabó, J. Effect of carbon dioxide on rheological properties and structure of polyacrylamide solutions. Colloid Polym Sci 274, 959–965 (1996). https://doi.org/10.1007/BF00656625

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  • DOI: https://doi.org/10.1007/BF00656625

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