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    X-ray tomography measurements of power-law cluster size distributions for the nonwetting phase in sandstones.

    Access Status
    Fulltext not available
    Authors
    Iglauer, Stefan
    Favretto, S.
    Spinelli, G.
    Schena, G.
    Blunt, M.
    Date
    2010
    Type
    Journal Article
    
    Metadata
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    Citation
    Iglauer, S. and Favretto, S. and Spinelli, G. and Schena, G. and Blunt, M. 2010. X-ray tomography measurements of power-law cluster size distributions for the nonwetting phase in sandstones.. Physical Review E. 82 (5 Pt 2).
    Source Title
    Physical Review E
    DOI
    10.1103/PhysRevE.82.056315
    School
    Department of Petroleum Engineering
    URI
    http://hdl.handle.net/20.500.11937/35477
    Collection
    • Curtin Research Publications
    Abstract

    Three-dimensional images of sandstones containing residual nonwetting phase were obtained using synchrotron x-ray tomography with a resolution of approximately 9 µm. We determined the size distribution of disconnected nonwetting phase clusters (ganglia); the number of ganglia of size s is N(s)~s(-t) with t=2.05 . The vast majority of the residual phase was contained in large clusters, spanning many pores. This result implies that we have clusters of all sizes providing a huge surface area for geochemical reactions and dissolution while allowing mobilization of the residual phase during improved oil recovery in hydrocarbon reservoirs and carbon dioxide storage in aquifers.

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