1887
Volume 57, Issue 5
  • E-ISSN: 1365-2478

Abstract

ABSTRACT

Interval velocity analysis in complex geological areas is often considered as an unresolved problem. A novel approach to improve the velocity analysis process is to perform the analysis in a non‐conventional domain and to use seismic events that are usually ignored during standard data processing and imaging. In this study, a method to analyse diffraction data for migration velocity analysis in the time‐ or depth‐domain is presented. The method is based on the clear distinction between diffractions and reflections in the post‐migration dip‐angle domain. The attractive possibility to perform the analysis, using only stacked data as an input, is demonstrated on synthetic and real data examples.

Loading

Article metrics loading...

/content/journals/10.1111/j.1365-2478.2008.00773.x
2008-12-22
2024-04-26
Loading full text...

Full text loading...

References

  1. AudebertF., FroidevauxP., RakotoarisoaH. and Svay‐LucasJ.2002. Insights into migration in the angle domain. 72nd SEG meeting, Salt Lake City , Utah , USA , Expanded Abstracts.
  2. BansalR. and ImhofM.2005. Diffraction enhancement in prestack seismic data. Geophysics70, V73–V79.
    [Google Scholar]
  3. Brandsberg‐DahlS. and BilletteF.J.2005. The 2004 BP velocity benchmark. 67th EAGE meeting, Madrid , Spain , Expanded Abstracts, B035.
  4. FomelS., LandaE. and TanerT.2007. Poststack velocity analysis by separation and imaging of seismic diffractions. Geophysics72, U89–U94.
    [Google Scholar]
  5. HarlanW., ClaerbautJ. and RoccaF.1984. Signal to noise separation and velocity estimation. Geophysics49, 1869–1880.
    [Google Scholar]
  6. KanasewichE. and PhadkeS.1988. Imaging discontinuities on seismic sections. Geophysics53, 334–345.
    [Google Scholar]
  7. KhaidukovV., LandaE. and MoserT.J.2004. Diffraction imaging by focusing‐defocusing: an outlook on seismic super resolution. Geophysics69, 1478–1490.
    [Google Scholar]
  8. Klem‐MusatovK.1994. Theory of Seismic Diffractions . SEG
    [Google Scholar]
  9. LandaE., GurevichB., KeydarS. and TrachtmanP.1999. Application of multifocusing method for subsurface imaging. Applied Geophysics42, 283–300.
    [Google Scholar]
  10. LandaE. and KeydarS.1998. Seismic monitoring of diffraction images for detection of local heterogeneities. Geophysics63, 1093–1100.
    [Google Scholar]
  11. LandaE., ShtivelmanV. and GelchinskyB.1987. A method for detection of diffracted waves on common‐offset sections. Geophysical Prospecting35, 359–374. doi:DOI: 10.1111/j.1365-2478.1987.tb00823.x
    [Google Scholar]
  12. LiuE, CrampinS. and HudsonJ.1997. Diffraction of seismic waves by cracks with application to hydraulic fracturing. Geophysics62, 253–265.
    [Google Scholar]
  13. MoserT.J. and HowardC.B.2008. Diffraction imaging in depth. Geophysical Prospecting56, 627–642. doi:DOI: 10.1111/j.1365-2478.2007.00718.x
    [Google Scholar]
  14. ReshefM.2007. Velocity analysis in the dip‐angle domain. 69th EAGE meeting, London , UK , Expanded Abstracts.
  15. ReshefM. and RuegerA.2008. Influence of structural dip angles on interval velocity analysis. Geophysics73, U13–U18.
    [Google Scholar]
  16. SavaP., BiondiB. and EtgenJ.2005. Wave‐equation migration velocity analysis by focusing diffractions and reflections. Geophysics70, U19–U27.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journals/10.1111/j.1365-2478.2008.00773.x
Loading
/content/journals/10.1111/j.1365-2478.2008.00773.x
Loading

Data & Media loading...

  • Article Type: Research Article

Most Cited This Month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error