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    Effect of the Temperature on CO2/Brine/Dolomite Wettability: Hydrophilic versus Hydrophobic Surfaces

    Access Status
    Fulltext not available
    Authors
    Al-Yaseri, A.
    Roshan, H.
    Zhang, Y.
    Rahman, T.
    Lebedev, Maxim
    Barifcani, Ahmed
    Iglauer, Stefan
    Date
    2017
    Collection
    • Curtin Research Publications
    Type
    Journal Article
    Metadata
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    Abstract

    The water contact angle in a system of brine (20 wt % CaCl 2 ) and CO 2 was measured on a smooth dolomite surface [root mean square (RMS) surface roughness of 45 nm] with both hydrophilic and hydrophobic behaviors as a function of the pressure (0.1, 5, 10, 15, and 20 MPa) and temperature (308, 323, and 343 K). The experimental results show that the contact angle of brine/CO 2 increases slightly with the temperature when the dolomite surface is hydrophilic but, interestingly, reduces when the surface is hydrophobic. The results also illustrate that the brine/CO 2 contact angles increase with increasing pressure. We interpreted the experimental observations using the concept of alteration in van der Waals potential (substrate surface chemistry) with thermodynamic properties, including pressure and temperature.

    Citation
    Al-Yaseri, A. and Roshan, H. and Zhang, Y. and Rahman, T. and Lebedev, M. and Barifcani, A. and Iglauer, S. 2017. Effect of the Temperature on CO2/Brine/Dolomite Wettability: Hydrophilic versus Hydrophobic Surfaces. Energy and Fuels. 31 (6): pp. 6329-6333.
    Source Title
    Energy and Fuels
    URI
    http://hdl.handle.net/20.500.11937/54262
    DOI
    10.1021/acs.energyfuels.7b00745
    Department
    Department of Exploration Geophysics

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