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    Processing of land 4D seismic data in case of limited area of repeated survey - a case study from Otway Basin, Australia

    132553_12796_049EAGEPevzner.pdf (1.525Mb)
    Access Status
    Open access
    Authors
    Shulakova, V.
    Pevzner, Roman
    Urosevic, Milovan
    Date
    2009
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Shulakova, V. and Pevzner, Roman and Urosevic, Milovan. 2009. Processing of land 4D seismic data in case of limited area of repeated survey - a case study from Otway Basin, Australia, in EAGE Publications (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/20.500.11937/21311
    Collection
    • Curtin Research Publications
    Abstract

    Time lapse 3D seismic is an important part of monitoring and verification program of the Otway Project - an Australian first demonstration of the deep geological storage of CO2 located on-shore in Victoria. From March, 2008 CO2-rich gas is being injected into a depleted gas reservoir at a depth of around 2050 metres. In year 2000 3D pre-production seismic data were acquired over large area, covering Naylor field, our CO2 sequestration site and also several adjacent small gas fields. Baseline 3D seismic data were acquired in December 2007, however due to logistical problems and cost of the survey size of the area was much smaller (only 3 sq. km). Processing of land time-lapse seismic surveys is a challenging task and in this case it was additionally complicated since limited migration aperture was determined to be one of main problems affecting imaging of the target horizon. To overcome this limitation we adopted an approach which is based on joint processing of two different 3D vintage sets with different size of survey area.

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