1887

Abstract

Summary

It has been recognised that the source estimation can play a crucial role in full waveform inversion (FWI). Often the source signature is estimated inside the iteration loop in FWI and is updated with iterations. Due to the trade-off between source signature and subsurface parameters this approach can result in wrong source signature and subsurface model. Exploiting the global source signature might introduce systematic errors in FWI results. We explore the potential of separating the source estimation from the FWI loop and suggest the source estimation for each shot in the dataset. To reduce the subsurface component in the source signature, we incorporate high frequency data in our approach. On various real data examples, we show the advantages of the proposed approach. Using the synthetic data examples, we access sensitivity of the FWI results to the errors in the source signature.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201601015
2016-05-31
2020-03-28
Loading full text...

Full text loading...

References

  1. Pratt, R G, Z.-M.Song, P.Williamson, and M.Warner
    , 1996, Two dimensional velocity models from wide-angle seismic data by wavefield inversion: Geophysical Journal International, 124, 323–340, doi: 10.1111/gji.1996.124.issue‑2.
    https://doi.org/10.1111/gji.1996.124.issue-2 [Google Scholar]
  2. Sirgue, L., Barkverd,O. I.,Van Gestel, J.P., Askim, O. J. Kommendal, J.H.
    , 2009,3D Waveform Inversion On Valhall Wide-Azimuth OBC: 71st EAGE Conference and Exibition incorporating SPE EUROPEC, U038
    [Google Scholar]
  3. Sun, D., Jiao, K., Cheng, X., Vigh, D.,Coates, R
    , 2014, Source wavelet estimation in full waveform inversion: SEG Denver 2014 Annual Meeting, 1184–1188, doi: http://dx.doi.org/101190/segam2014-1632.1
    [Google Scholar]
  4. Warner, M., A.Ratcliffe, T.Nangoo, J.Morgan, A.Umpleby, N.Shah, V.Vinje, I.Štekl, L.Guasch, C.Win, GConroy, and A.Bertrand
    , 2013, Anisotropic 3D full-waveform inversion: Geophysics, 78, no. 2, R59–R80, doi: 10.1190/geo2012‑0338.1.
    https://doi.org/10.1190/geo2012-0338.1 [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201601015
Loading
/content/papers/10.3997/2214-4609.201601015
Loading

Data & Media loading...

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