1887

Abstract

Summary

Biot’s theory of poroelasticity provides a theoretical basis for phenomena understanding of the attenuation due to the elastic wave propagation. Carbonate rocks have complex pore system with a variety of pore types and a wide range of pore size. Many studies indicate that pore size, pore shape and geometry, and amount of micropores are important factors influencing P-wave attenuation in rock pores, and can explain the variation of attenuation at the same porosity. Therefore, the effects of the pore structure and its properties on elastic wave attenuation cannot be neglected. In this work, the petrophysical and physical properties of carbonates data set were obtained from literature and the P-wave attenuation was estimated through the Dvorkin-Mavko model to investigate the influence of petrophysical, mineralogy, geometrical parameters and porosity scale in P-wave propagation and attenuation. The results allowed to correlate the pore geometry properties of the medium such as DomSize and PoA to attenuation effects and contributed to the understanding of the attenuation in seismic studies of carbonates and complexities of the pore system.

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/content/papers/10.3997/2214-4609.201800864
2018-06-11
2024-03-29
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References

  1. Assefa, S., McCann, C. and Sothcott, J.
    [1999] Attenuation of P-and S-waves in limestones. Geophysical Prospecting, 47(3), 359–392. Doi: 10.1046/j.1365‑2478.1999.00136.x
    https://doi.org/10.1046/j.1365-2478.1999.00136.x [Google Scholar]
  2. Biot, M.A.
    [1956] Theory of propagation of elastic waves in a fluid saturated porous solid. I. Low frequency range and II. Higher-frequency range. J. Acoust. Soc. Am., 28, 168–191. Doi: 10.1121/1.1908239
    https://doi.org/10.1121/1.1908239 [Google Scholar]
  3. Dvorkin, J.P. and Mavko, G.
    [2006] Modeling attenuation in reservoir and non-reservoir rock: The Leading Edge, 25, 194–197, Doi: 10.1190/1.2172312
    https://doi.org/10.1190/1.2172312 [Google Scholar]
  4. Fabricius, I. L. and Eberli, G. P.
    [2009] Dispersion of elastic waves in carbonate rocks, 79th Annual International Meeting., SEG, Expanded Abstracts, 1955–1959. Doi: 10.1190/1.3255238
    https://doi.org/10.1190/1.3255238 [Google Scholar]
  5. Koroteev, D., Mutina, A. and Sasov, A.
    [2011] Using X-ray microCT for 3D mineral mapping. Micro-CT user meeting, Abstract book, 40–45.
    [Google Scholar]
  6. Mavko, G., Mukerji, T. and Dvorkin, J.
    [2009] The Rock Physics Handbook, Tools for Seismic Analysis of Porous Media, Cambridge University press, 2nd edition. 511.
    [Google Scholar]
  7. Najibi, A. R., Ghafoori, M., Lashkaripour, G. R., and Asef, M. R.
    [2015] Empirical relations between strength and static and dynamic elastic properties of Asmari and Sarvak limestones, two main oil reservoirs in Iran. Journal of Petroleum Science and Engineering, 126, 78–82.
    [Google Scholar]
  8. Oliveira, L. C., Missagia, R., Neto, I. L. and Ceia, M.
    [2017] Estimation of P-wave dispersion and attenuation under pore-texture complexities in carbonates. 87th Annual International Meeting, SEG, Expanded Abstracts, 3935–3939. Doi: 10.1190/segam2017‑17795428.1
    https://doi.org/10.1190/segam2017-17795428.1 [Google Scholar]
  9. Saloman, E. B., Hubbell, J. H. and Scofield, J. H.
    [1988] X-ray attenuation cross sections for energies 100 eV to 100 keV and elements Z= 1 to Z= 92. Atomic Data and Nuclear Data Tables, 38(1), 1–196. Doi: 10.1016/0092‑640X(88)90044‑7
    https://doi.org/10.1016/0092-640X(88)90044-7 [Google Scholar]
  10. Verwer, K., Eberli, G.P. and Weger, R. J.
    [2011] Effect of pore structure on electrical resistivity in carbonates. AAPG bulletin, 95(2), 175–190. Doi: 10.1306/06301010047
    https://doi.org/10.1306/06301010047 [Google Scholar]
  11. Weger, R. J.
    [2006] Quantitative pore/rock type parameters in carbonates and their relationship to velocity deviations: Ph.D. dissertation thesis, University of Miami, Coral Gables, 232 p.
    [Google Scholar]
  12. Weger, R. J., Eberli, G. P., Beachle, G. T., Massaferro, J. L. and Sun, Y.
    [2009] Quantification of pore structure and its effect on sonic velocity and permeability in carbonates. AAPG Bulletin., 93(10), 1297–1317. Doi: 10.1306/05270909001
    https://doi.org/10.1306/05270909001 [Google Scholar]
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