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    Seismic monitoring and verification for the Co2CRC Ottway Basin project

    117668_9908_47128 Paper.pdf (3.441Mb)
    Access Status
    Open access
    Authors
    Urosevic, Milovan
    Campbell, A
    Dahlhaus, L
    Gendrin, A
    Leaney, W
    Tcherkashnev, S
    Verliac, M
    Date
    2008
    Type
    Conference Paper
    
    Metadata
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    Citation
    Urosevic, Milovan and Campbell, A. and Dahlhaus, L. and Gendrin, A. and Leaney, W. and Tcherkashnev, S. and Verliac, M. 2008. Seismic monitoring and verification for the Co2CRC Ottway Basin project, in Gale, J. and Herzog, H. and Braitsch, J. (ed), 9th International Conference on Greenhouse Gas Control Technologies GHGT, Nov 16 2008, pp. 3135-3140, Washington DC, USA: Elsevier.
    Source Title
    GHGT 9 Conference Papers
    Source Conference
    GHGT 9th International Conference on Greenhouse Gas Control Technologies
    DOI
    10.1016/j.egypro.2009.02.095
    Faculty
    Department of Exploration Geophysics
    Faculty of Science and Engineering
    The Western Australian School of Mines
    Remarks

    The link to the journa's home page is: http://www.elsevier.com/wps/find/journaldescription.cws_home/718157/description#description

    Copyright © 2009 Elsevier Ltd. All rights reserved

    URI
    http://hdl.handle.net/20.500.11937/12176
    Collection
    • Curtin Research Publications
    Abstract

    The Otway Project conducted under the Australian Cooperative Research Centre for Greenhouse Gas Technologies (CO2CRC) is the first of its kind, where CO2 is injected into a depleted gas reservoir. The use of depleted fields for CO2 storage is likely to become widely adopted globally and, therefore, the project will provide important experience for monitoring under these conditions. However, such scenario is not favorable for the application of geophysical techniques for the purpose of CO2 monitoring and verification (M&V) because the injection of CO2 into a CH4 depleted reservoir is modeled to produce very subtle changes in elastic properties of the reservoir rock which may be very difficult to measure. Consequently geophysical program for the Otway site was design according to the expected time-lapse effects. It combines both surface and borehole seismic methods. Surface seismic should provide a global vision of the underground and an indirect confirmation of the CO2 containment by recording no differences between the successive time-lapse experiments. Vertical Seismic Profile (VSP) surveys are expected to provide an improved characterization of the reservoir and hopefully a direct indication of the fluid distribution and/or its potential upward migration along the reservoir bounding fault pattern. Indeed the results of the current analysis of both pre-base line (test) and base-line 2D and 3D VSP data are encouraging. The availability of vector wave field (three-component) data recorded in VSP surveys should significantly improve the outcomes of M&V program at Naylor site.

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