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  • Microbial enhanced oil recovery : a pore-scale investigation of interfacial interactions

    Creator:
    Armstrong, Ryan T.
    Abstract:
    Current oil production technologies recover only about one‐third to one‐half of the oil originally present in an oil reservoir. Given current oil prices, even a modest increase in oil recovery efficiency is fiscally attractive. One novel approach to increase oil recovery efficiency is a process called microbial enhanced oil recovery...
    Resource Type:
    Dissertation
    Full Text:
     Investigation of Interfacial Interactions      Abstract approved:      Dorthe Wildenschild    Current oil

  • Investigating the pore-scale mechanisms of microbial enhanced oil recovery

    Creator:
    Armstrong, Ryan T. and Wildenschild, Dorthe
    Abstract:
    Microbial Enhanced Oil Recovery (MEOR) is a process where microorganisms are used for tertiary oil recovery. Numerous mechanisms have been proposed in the literature through which microorganisms facilitate the mobilization of residual oil. Herein, we focus on the MEOR mechanisms of interfacial tension reduction (via biosurfactant) and bioclogging in water-wet...
    Resource Type:
    Article
    Full Text:
    Wettability of Porous Rock, Trans., AIME, 216, 127-20. Armstrong, R. T. and Wildenschild, D. (2012

  • Linking pore-scale interfacial curvature to column-scale capillary pressure

    Creator:
    Armstrong, Ryan T., Porter, Mark L., and Wildenschild, Dorthe
    Abstract:
    Synchrotron-based tomographic datasets of oil–water drainage and imbibition cycles have been analyzed to quantify phase saturations and interfacial curvature as well as connected and disconnected fluid configurations. This allows for close observation of the drainage and imbibition processes, assessment of equilibrium states, and studying the effects of fluid phase disconnection...
    Resource Type:
    Article
    Full Text:
    2005;41:W11419. [15] Porter ML, Wildenschild D. Image analysis algorithms for estimating porous media