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    Effect of temperature and SiO2 nanoparticle size on wettability alteration of oil-wet calcite

    253506.pdf (723.5Kb)
    Access Status
    Open access
    Authors
    Al-Anssari, S.
    Wang, S.
    Barifcani, Ahmed
    Lebedev, Maxim
    Iglauer, Stefan
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Al-Anssari, S. and Wang, S. and Barifcani, A. and Lebedev, M. and Iglauer, S. 2017. Effect of temperature and SiO2 nanoparticle size on wettability alteration of oil-wet calcite. Fuel. 206: pp. 34-42.
    Source Title
    Fuel
    DOI
    10.1016/j.fuel.2017.05.077
    ISSN
    0016-2361
    School
    School of Chemical and Petroleum Engineering
    URI
    http://hdl.handle.net/20.500.11937/54568
    Collection
    • Curtin Research Publications
    Abstract

    Nanofluid treatment of oil reservoirs is being developed to enhance oil recovery and increase residual trapping capacities of CO 2 at the reservoir scale. Recent studies have demonstrated good potential for silica nanoparticles for enhanced oil recovery (EOR) at ambient conditions. Nanofluid composition and exposure time have shown significant effects on the efficiency of EOR. However, there is a serious lack of information regarding the influence of temperature on nanofluid performance; thus the effects of temperature, exposure time and particle size on wettability alteration of oil-wet calcite surface were comprehensively investigated; moreover, the stability of the nanofluids was examined. We found that nanofluid treatment is more efficient at elevated temperatures, while nanoparticle size had no influence. Mechanistically most nanoparticles were irreversibly adsorbed by the calcite surface. We conclude that such nano-formulations are potentially useful EOR agents and may improve the efficiency of CO 2 -storage even at higher reservoir temperatures.

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