Effect of Polymer Adsorption on Permeability Reduction in Enhanced Oil Recovery

  • Mishra S
  • Bera A
  • Mandal A
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Abstract

In order to reduce the permeability to water or brine, there is a possibility of polymer injection into the reservoir. In the present work, special focus has been paid in polymer [partially hydrolyzed polyacrylamide (PHPA)] injection as a part of chemical method. Tests were conducted in the laboratory at the ambient temperature to examine the reduction in permeability to water or brine in the well-prepared sand packed after the polymer injection. The experiments were performed to study the effect of polymer adsorption on permeability reduction by analyzing residual resistance factor values with different concentrations of polymer solutions. The rheological behavior of the polymer has also been examined. The experimental results also indicate that the adsorption behavior of polymer is strongly affected by salinity, solution pH, and polymer concentration. To investigate the effect of polymer adsorption and mobility control on additional oil recovery, polymer flooding experiments were conducted with different polymer concentrations. It has been obtained that with the increase in polymer concentrations, oil recovery increases.

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Mishra, S., Bera, A., & Mandal, A. (2014). Effect of Polymer Adsorption on Permeability Reduction in Enhanced Oil Recovery. Journal of Petroleum Engineering, 2014, 1–9. https://doi.org/10.1155/2014/395857

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