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Corredor LM, Husein MM, Maini BB. Effect of Hydrophobic and Hydrophilic Metal Oxide Nanoparticles on the Performance of Xanthan Gum Solutions for Heavy Oil Recovery. Nanomaterials (Basel). 2019;9(1)doi: 10.3390/nano9010094.
Corredor, L. M., Husein, M. M., & Maini, B. B. (2019). Effect of Hydrophobic and Hydrophilic Metal Oxide Nanoparticles on the Performance of Xanthan Gum Solutions for Heavy Oil Recovery. Nanomaterials (Basel, Switzerland), 9(1), . https://doi.org/10.3390/nano9010094
Corredor, Laura M, et al. "Effect of Hydrophobic and Hydrophilic Metal Oxide Nanoparticles on the Performance of Xanthan Gum Solutions for Heavy Oil Recovery." Nanomaterials (Basel, Switzerland) vol. 9,1 (2019). doi: https://doi.org/10.3390/nano9010094
Corredor LM, Husein MM, Maini BB. Effect of Hydrophobic and Hydrophilic Metal Oxide Nanoparticles on the Performance of Xanthan Gum Solutions for Heavy Oil Recovery. Nanomaterials (Basel). 2019 Jan 12;9(1). doi: 10.3390/nano9010094. PMID: 30642044; PMCID: PMC6358868.
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Nanomaterials (Basel). 2019 Jan 12;9(1). doi: 10.3390/nano9010094.

Effect of Hydrophobic and Hydrophilic Metal Oxide Nanoparticles on the Performance of Xanthan Gum Solutions for Heavy Oil Recovery.

Nanomaterials (Basel, Switzerland)

Laura M Corredor, Maen M Husein, Brij B Maini

Affiliations

  1. Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada. [email protected].
  2. Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada. [email protected].
  3. Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada. [email protected].

PMID: 30642044 PMCID: PMC6358868 DOI: 10.3390/nano9010094

Abstract

Recent studies revealed higher polymer flooding performance upon adding metal oxide nanoparticles (NPs) to acrylamide-based polymers during heavy oil recovery. The current study considers the effect of TiO₂, Al₂O₃, in-situ prepared Fe(OH)₃ and surface-modified SiO₂ NPs on the performance of xanthan gum (XG) solutions to enhance heavy oil recovery. Surface modification of the SiO₂ NPs was achieved by chemical grafting with 3-(methacryloyloxy)propyl]trimethoxysilane (MPS) and octyltriethoxysilane (OTES). The nanopolymer sols were characterized by their rheological properties and ζ-potential measurements. The efficiency of the nanopolymer sols in displacing oil was assessed using a linear sand-pack at 25 °C and two salinities (0.3 wt % and 1.0 wt % NaCl). The ζ-potential measurements showed that the NP dispersions in deionized (DI) water are unstable, but their colloidal stability improved in presence of XG. The addition of unmodified and modified SiO₂ NPs increased the viscosity of the XG solution at all salinities. However, the high XG adsorption onto the surface of Fe(OH)₃, Al₂O₃, and TiO₂ NPs reduced the viscosity of the XG solution. Also, the NPs increased the cumulative oil recovery between 3% and 9%, and between 1% and 5% at 0 wt % and 0.3 wt % NaCl, respectively. At 1.0 wt % NaCl, the NPs reduced oil recovery by XG solution between 5% and 12%, except for Fe(OH)₃ and TiO₂ NPs. These NPs increased the oil recovery between 2% and 3% by virtue of reduced polymer adsorption caused by the alkalinity of the Fe(OH)₃ and TiO₂ nanopolymer sols.

Keywords: heavy oil; metal oxide; nanoparticle; polymer flooding; xanthan gum

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