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    Design and deployment of a buried geophone array for CO2 geosequestration monitoring: CO2CRC Otway Project, Stage 2C

    Access Status
    Fulltext not available
    Authors
    Pevzner, Roman
    Tertyshnikov, Konstantin
    Shulakova, V.
    Urosevic, Milovan
    Kepic, Anton
    Gurevich, Boris
    Singh, R.
    Date
    2015
    Type
    Conference Paper
    
    Metadata
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    Citation
    Pevzner, R. and Tertyshnikov, K. and Shulakova, V. and Urosevic, M. and Kepic, A. and Gurevich, B. and Singh, R. 2015. Design and deployment of a buried geophone array for CO2 geosequestration monitoring: CO2CRC Otway Project, Stage 2C, in Proceedings of the Society of Exploration Geophysicists 85th Annual Meeting, Oct 18-21 2015, pp. 266-270. New Orleans: Society of Exploration Geophysicists.
    Source Title
    SEG Technical Program Expanded Abstracts 2015
    Source Conference
    Society of Exploration Geophysicists 85th Annual Meeting
    DOI
    10.1190/segam2015-5902309.1
    School
    Department of Exploration Geophysics
    URI
    http://hdl.handle.net/20.500.11937/20990
    Collection
    • Curtin Research Publications
    Abstract

    Stage 2C of the CO2CRC Otway project aims to demonstrate the stabilization of a gas plume following the injection of approximately 15,000 tonnes of CO2-rich gas mixture into the saline aquifer and examine the capabilities of 4D seismic to detect and track the plume in the subsurface. The ability to detect and monitor the plume is controlled by both strength of the signal and level of the time-lapse noise. Extensive modeling and field trials show that the use of buried receiver arrays for long-term monitoring of the CO2 geosequestration has the potential to reduce both land impact for landowners and cost impact to the project. To this end, a buried receiver array was designed and deployed at the CO2CRC Otway site. The array comprises ∼900 high-sensitivity geophones deployed at 4 m depth below the surface. Preliminary benchmark tests show a significant improvement in raw data quality compared to surface geophones. Absence of cables and other seismic infrastructure on the surface (with the exception of eleven cross-line boxes) significantly reduces the impact of the survey on farming activities as only the sources will need access to the farmland for the future monitor surveys.

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