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    A new model for squirt-flow attenuation and dispersion in fluid-saturated rocks

    132551_12108_052EAGEMakarynska.pdf (324.5Kb)
    Access Status
    Open access
    Authors
    Gurevich, Boris
    Makarynska, Dina
    Pervukhina, M.
    De Paula, Osni
    Date
    2009
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Gurevich, Boris and Makarynska, D. and Pervukhina, Marina and De Paula, Osni. 2009. A new model for squirt-flow attenuation and dispersion in fluid-saturated rocks, in Technical Programme Committee, Beeke,S. (ed), 71st EAGE Conference & Exhibition, Jun 8 2009. Amsterdam: EAGE.
    Source Title
    EAGE Programme & Catalogue
    Source Conference
    71st EAGE Conference & Exhibition
    ISBN
    9789073781672
    Faculty
    Department of Exploration Geophysics
    Faculty of Science and Engineering
    WA School of Mines
    URI
    http://hdl.handle.net/20.500.11937/11474
    Collection
    • Curtin Research Publications
    Abstract

    We develop a new simple model of squirt-flow model attenuation and dispersion, in which most parameters can be independently measured or estimated from measurements. The pore space of the rock is assumed to consist of stiff porosity and compliant (or soft) pores present at grain contacts. The effect of isotropically distributed soft pores is modeled by considering pressure relaxation in a disk-shaped gap between adjacent grains. This derivation gives the complex and frequency-dependent effective bulk and shear moduli of a rock, in which the soft pores are liquid-saturated and stiff pores are dry. The resulting squirt model is consistent with Gassmann s and Mavko-Jizba equations at low and high frequencies, respectively.

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