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Filtering by: Creator Wildenschild, D. Remove constraint Creator: Wildenschild, D. Degree Field Chemical Engineering Remove constraint Degree Field: Chemical Engineering

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  • Pore-scale observations of three-fluid-phase transport in porous media

    Creator:
    Brown, Kendra I.
    Abstract:
    Understanding the transport of three fluid phases through porous media has important applications in subsurface contaminant remediation, oil and gas recovery, and geological CO₂ sequestration. Existing transport models may be improved by including physical phenomena that govern fluid flow at the pore scale. In particular, thermodynamic arguments suggest that hysteresis...
    Resource Type:
    Masters Thesis
    Full Text:
    Observations of Three-Fluid-Phase Transport in Porous Media Abstract approved: Dorthe Wildenschild

  • Saturation, morphology, and topology of nonwetting phase fluid in bentheimer sandstone; application to geologic sequestration of supercritical CO2

    Creator:
    Herring, Anna L.
    Abstract:
    This work examines the impact of a viscosity force parameter, fluid velocity, and a capillary force parameter, interfacial tension, on the saturation, morphology, and topology of NW fluid in Bentheimer sandstone after primary imbibition, drainage, and secondary imbibition. Brine and air (used as a proxy for supercritical CO₂) flow experiments...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: Dorthe Wildenschild This work examines the impact of a viscosity force

  • Exploring the Wettability States and Contact Angle Variation in Porous Media Multi-Phase Flow Systems

    Creator:
    Behnoudfar, Diba
    Abstract:
    The wetting of a surface by a liquid is a crucial part of many natural and industrial processes. Despite numerous existing studies, some elements of wetting-dewetting such as contact angle variation are still poorly understood. Knowledge of contact angle behavior during the flow is necessary for modeling fluid displacements in...
    Resource Type:
    Masters Thesis
    Full Text:
    . Abstract approved: ______________________________________________________ Dorthe Wildenschild

  • Flow processes in the dry regime : the effect on capillary barrier performance

    Creator:
    Jansik, Danielle P.
    Abstract:
    Engineered capillary barriers typically consist of two layers of granular materials designed so that the contrast in sediment hydrologic properties and sloping interface retains infiltrating water in the upper layer. We report here on the results of two bench-top capillary barrier experiments, and associated modeling. These experiments were conducted to...
    Resource Type:
    Masters Thesis
    Full Text:
    Effect on Capillary Barrier Performance D.P. Jansik, D. Wildenschild, and N.D

  • 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

  • Optimization of capillary trapping of CO2 sequestration in saline aquifers, Optimization of capillary trapping of CO₂ sequestration in saline aquifers

    Creator:
    Harper, Elizabeth J.
    Abstract:
    Geological carbon sequestration, as a method of atmospheric greenhouse gas reduction, is at the technological forefront of the climate change movement. During sequestration, carbon dioxide (CO₂) gas effluent is captured from coal fired power plants and is injected into a storage saline aquifer or depleted oil reservoir. In an effort...
    Resource Type:
    Masters Thesis
    Full Text:
    : ___________________________________________________________________________ Dorthe Wildenschild Geological carbon sequestration, as a method of atmospheric greenhouse

  • Steady-State Diffusion in a Spatially Varying Porous Medium

    Creator:
    Ferrero, Peter T.
    Abstract:
    Heterogeneous porous material represents a persistent challenge in the field of engineering. Microscale properties such as the porosity and microchannel torturosity significantly control the macroscale transport characteristics of homogeneous porous medium. Additional complexity is introduced when these small-scale features vary in space. Examples of heterogeneous porous systems include artificial body...
    Resource Type:
    Masters Thesis
    Full Text:
    Diffusion in a Spatially Varying Porous Medium Abstract approved: Brian D. Wood Heterogeneous porous

  • Preasymptotic Dispersion : A Theory that Includes Evolution from the Initial Condition

    Creator:
    Taghizadeh, Ehsan
    Abstract:
    The objective of this study is to investigate the dispersion of solute matter introduced into a fully developed laminar flow in a circular capillary tube under preasymptotic regimes. For this purpose, we have used the method of volume averaging to upscale microscale balance equations for the case of diffusion-convection transport...
    Resource Type:
    Masters Thesis
    Full Text:
    Dispersion: A Theory that Includes Evolution from the Initial Condition Abstract approved: Brian D. Wood

  • Investigation of transport phenomena in a highly heterogeneous porous medium

    Creator:
    Vogler, Daniel
    Abstract:
    This work focuses on solute mass transport in a highly heterogeneous two-region porous medium consisting of spherical low-hydraulic conductivity inclusions, embedded in a high-hydraulic conductivity matrix. The transport processes occuring in the system are described by three distinct time scales. The first time scale reflects the characteristic time for convective...
    Resource Type:
    Masters Thesis
    Full Text:
    Phenomena in a Highly Heterogeneous Porous Medium Abstract approved: Brian D. Wood This work focuses on

  • Numerical Methods for Upscaling Complex Transport Phenomena

    Creator:
    Taghizadeh, Ehsan
    Abstract:
    Transport phenomena specially the ones that occur in the various engineering disciplines such as tissue engineering and natural environment are often complex to analyze mostly due to the dynamic and geometric complexities; as such, they have been the subject of an active and intense area of research in past decades....
    Resource Type:
    Dissertation
    Full Text:
    : Numerical Methods for Upscaling Complex Transport Phenomena Abstract approved: Brian D. Wood Transport