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ISSN Druckformat: 2151-4798
ISSN Online: 2151-562X
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RHEOLOGICAL BEHAVIOR OF NANOSILICA SUSPENSIONS AND THE POTENTIAL TO ENHANCE POLYMER FLOODING PERFORMANCE
ABSTRAKT
Nanoparticles with their unique and unpredictable properties have recently attracted much attention in several branches of the petroleum industry. This paper is aimed at studying hydrophilic silica-alumina and slightly hydrophobic silica nanoparticle behaviors to see if they have enough feasibility to be used as an appropriate agent in enhanced oil recovery, especially polymer flooding. The main focus is on the rheological behavior of these nanomaterials in aqueous and polymeric media. Viscosity measurements showed that both nanoparticles had a great ability in rheology modification of aqueous solution. The solution viscosity was studied as a function of nanoparticle concentration and shear rate. The stability improvement of nanoparticle suspensions was also investigated by dissolving fixed amounts of hydrolyzed and sulfonated polyacrylamides. The stability of slightly hydrophobic silica suspensions was significantly improved by low molecular weight polymers. Instead, nanoparticles considerably enhanced polymer solution viscosity. Finally, sand-pack flow experiments, conducted in optimum conditions, revealed how nanoparticles may uniquely enhance polymer flooding performance.
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Gbadamosi Afeez O., Junin Radzuan, Manan Muhammad A., Yekeen Nurudeen, Augustine Agi, Hybrid suspension of polymer and nanoparticles for enhanced oil recovery, Polymer Bulletin, 76, 12, 2019. Crossref
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Elhaei Reza, Kharrat Riyaz, Madani Mohammad, Stability, flocculation, and rheological behavior of silica suspension-augmented polyacrylamide and the possibility to improve polymer flooding functionality, Journal of Molecular Liquids, 322, 2021. Crossref