1887

Abstract

Summary

Serial processing of PP and PS waves leads to depth inconsistencies between the PP and PS migrated images. The link between the P- and S-velocity models is the Vp/Vs ratio, whose estimation is an important task in multicomponent analysis because of its applications to lithology and fluid discrimination. We show the advantages of using the Vp/Vs ratio estimated with dynamic image warping as a volumetric constraint for nonlinear slope tomography. Our approach does not require repeated shift estimation between PP and PS events during inversion and does not depend on picked horizons thus reducing human interaction and uncertainty associated with interpretation.

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/content/papers/10.3997/2214-4609.201412705
2015-06-01
2024-03-29
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References

  1. Baek, H., Calandra, H., Demanet, L.
    [2014] Velocity estimation via registration-guided least-squares inversion, Geophysics79, R79–R89.
    [Google Scholar]
  2. Casasanta, L., Gray, S., Grion, S.
    [2013] Converted-wave controlled beam migration with sparse sources or receivers, 75th EAGE Conference & Exhibition, Extended Abstracts.
    [Google Scholar]
  3. Compton, S., Hale, D.
    [2014] Estimating Vp/Vs ratios using smooth dynamic image warping, Geophysics79, V201–V215.
    [Google Scholar]
  4. Gaiser, J.
    [1996] Multicomponent Vp/Vs correlation analysis, Geophysics61, 1137–1149.
    [Google Scholar]
  5. Hale, D.
    [2013] Dynamic warping of seismic images, Geophysics78, S105–S115.
    [Google Scholar]
  6. Guillaume, P., Audebert, F., Berthet, P., David, B., Herrenschmidt, A., Zhang, X.
    [2001] 3D finite-offset tomographic inversion of CRP-scan data, with or without anisotropy, SEG Technical Program Expanded Abstracts 2001.
    [Google Scholar]
  7. Lambaré, G.
    [2008] Stereotomography, Geophysics73, VE25–VE34.
    [Google Scholar]
  8. Mathewson, J., Woodward, M., Nichols, D., Xu, C., LeoneC.
    [2013] Joint PP/PS tomography with floating event constraints, SEG Technical Program, Expanded abstracts 2013.
    [Google Scholar]
  9. Montel, J.P., Deladerriere, N., Guillaume, P., Lambaré, G., Prescott, T., Touré, J.P., Tronmilin, Y., Zhang, X.
    [2009] Kinematic invariants describing locally coherent events: an efficient and flexible approach to non-linear tomography, 71st EAGE Conference & Exhibition, Extended Abstracts.
    [Google Scholar]
  10. Stewart, R., Gaiser, J., Brown, R., Lawton, D.
    [2003], Converted-wave seismic exploration: Applications, Geophysics68, 40–57.
    [Google Scholar]
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