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    Seismic inversion for Geotechnical properties relevant to coal mining

    Access Status
    Fulltext not available
    Authors
    Hatherly, Peter
    Urosevic, Milovan
    Zhou, B.
    Date
    2008
    Type
    Conference Paper
    
    Metadata
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    Citation
    Hatherly, Peter and Urosevic, Milovan and Zhou, B. 2008. Seismic inversion for Geotechnical properties relevant to coal mining, in EEGS (ed), 21st SAGEEP Symposium, Apr 6 2008, pp. 577-584. Philadelphia, Pennsylvania: Environmental and Engineering Geophysical Society
    Source Title
    21st SAGEEP Symposium 2008
    Source Conference
    21st SAGEEP Symposium
    ISSN
    1554-8015
    Faculty
    Department of Exploration Geophysics
    Faculty of Science and Engineering
    WA School of Mines
    URI
    http://hdl.handle.net/20.500.11937/26661
    Collection
    • Curtin Research Publications
    Abstract

    The 3D seismic reflection method has an established role in Australia in mapping geological structures, faults and discontinuities that might affect the operation of an underground coal mine. However, successful longwall mining also requires knowledge of geotechnical properties of the roof and floor strata. Most geotechnical information is obtained from core drilling, geophysical logging and underground mapping. In particular, log analysis can now be used to determine geotechnical properties of the strata through the Geophysical Strata Rating (GSR). However such “point” measurements need to be extrapolated into a full three dimensional geotechnical model for longwall mining operations. Geotechnical variability is related to lithological variations that can be inferred from high resolution seismic reflection data. Hence geotechnical variability could be studied directly from seismic data or a particular seismic attribute. Here we investigate a relationship between acoustic impedance derived from seismic data and log-derived GSR values to produce a 3D geotechnical model.

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