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    Numerical Testing of Virtual Source Method

    152394_26335_Numerical Testing of Virtual Source Method.pdf (996.5Kb)
    Access Status
    Open access
    Authors
    Alonaizi, Faisal
    Hartley, Bruce
    Pevzner, Roman
    Date
    2010
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Alonaizi, F. and Hartley, B. and Pevzner, R. 2010. Numerical Testing of Virtual Source Method, 72nd EAGE Conference and Exhibition, Jun 14 2010. Barcelona: European Association of Geoscientists and Engineers.
    Source Title
    EAGE Conference Proceedings & Exhibitors' Catalogue
    Source Conference
    72nd EAGE Conference and Exhibition
    ISBN
    978-90-73781-86-3
    School
    Department of Exploration Geophysics
    URI
    http://hdl.handle.net/20.500.11937/33591
    Collection
    • Curtin Research Publications
    Abstract

    Cross-well profiling is an important technique that produces a high resolution image between wells and provides a better delineation of rock properties. Yet, using a real downhole source is considered a major obstacle in a well logging operation. Thus, the Virtual Source Method (VSM) was introduced as an emerging technique that can virtually place a downhole source without damaging the well. This allowed us to passively use different source types on the surface with no velocity correction required for the medium between sources and downhole receivers.Using a numerical model, we produced our synthetics and created the Virtual Source gathers. A comparison was then made between the real downhole shot gathers and the VS gathers, and we found that the direct arrivals and the reflections are matching in time. A tomogram section was then produced using the direct P-wave arrivals. Our study demonstrated that cross-well tomography can be used with the Virtual Source Method, as the inversion model that was produced showed a velocity distribution matching with the geological model.

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