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    Effects of mesoscopic flow on ultrasonic velocities

    248001.pdf (392.0Kb)
    Access Status
    Open access
    Authors
    Qi, Q.
    Müller, Tobias
    Gurevich, Boris
    Correia Lopes, Sofia Alexandra
    Lebedev, Maxim
    Date
    2013
    Type
    Conference Paper
    
    Metadata
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    Citation
    Qi, Q. and Müller, T. and Gurevich, B. and Correia Lopes, S.A. and Lebedev, M. 2013. Effects of mesoscopic flow on ultrasonic velocities, in Second International Workshop on Rock Physics: Seismic attenuation and velocity dispersion II, Aug 4 2013. Southampton: EAGE.
    Source Title
    Second International Workshop on Rock Physics
    Source Conference
    Second International Workshop on Rock Physics
    Additional URLs
    http://earthdoc.eage.org/publication/publicationdetails/?publication=73442
    School
    CSIRO Petroleum, Perth, Australia
    URI
    http://hdl.handle.net/20.500.11937/49249
    Collection
    • Curtin Research Publications
    Abstract

    Mesoscopic flow is a significant mechanism of fluid-related seismic attenuation in partiallysaturated rocks. Attenuation due to this mechanism is controlled by spatial distribution of fluids.To study this effect in the laboratory we quantify mesoscale fluid distribution from CTscans and compute its associated acoustic signatures using poroelasticity theory. By comparingthese theoretical estimates with experimentally measured velocities, we find thatmesoscopic flow underestimates elastic wave attenuation at ultrasonic frequencies.

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