In recent years, many important discoveries have been made in the deep oil and gas exploration worldwide, which indicates the deep has gradually become one of the most important areas in the current and future hydrocarbon exploration. However, the prediction of deep reservoirs is very challenging for their low porosity and complex pore microstructures characteristics caused by the burial depth and diagenesis. Rock physics model is a prevailing tool to connect the reservoir parameters with seismic parameters, which also has its own limitation and advantages controlled by different geological settings. In this paper, we first establish a rock physics model for deep gas sandstone reservoirs based on the geology and well log analysis, and then combine it with the prestack seismic inversion results to quantitatively characterize the porosity and gas saturation of deep sandstone reservoirs. Application results in the East China Sea shelf basin verify the effectiveness and accuracy of this method, which can provide theoretical and practical guidance for the further exploration of deep-buried gas sandstone reservoirs.


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  1. Berryman, J. G.
    [1992] Single-scattering approximations for coefficients in Biot's equations of poroelasticity. The Journal of the Acoustical Society of America, 91(2), 551–571.
    [Google Scholar]
  2. Jakobsen, M., Johansen, T. A., and McCann, C.
    [2003] The acoustic signature of fluid flow in a complex porous media. Journal of Applied Geophysics, 54, 219–246.
    [Google Scholar]
  3. Johansen, T. A., Drottning, Å., Lecomte, I., et al.
    [2002] An approach to combined rock physics and seismic modelling of fluid substitution effects. Geophysical Prospecting, 50, 119–137.
    [Google Scholar]
  4. Keys, R. G., Xu, S.
    [2002] An approximation for the Xu-White velocity model. Geophysics, 67(5), 1406–1414.
    [Google Scholar]
  5. Mavko, G., Mukerji, T., Dvorkin, J.
    [2009] The Rock Physics Handbook Tools for Seismic Analysis of Porous Media - 2nd edition. Cambridge University Press, New York.
    [Google Scholar]
  6. Xu, S., White, R. E.
    [1995] A new velocity model for clay-sand mixtures. Geophysical Prospecting, 43, 91–118.
    [Google Scholar]

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