1887

Abstract

Summary

A blended dataset is nothing but an unblended dataset generated by a blended source, and if the source signature of this blended source is known, the dataset can be de-blended by deconvolution. This paper illustrates a new methodology that uses this idea to perform source separation when the source signatures of the blended sources are different and known. This methodology does not require random delays, and can be used jointly with other de-blending methods. The effectiveness of the suggested methodology, alone or combined with other de-blending steps, is demonstrated using a synthetically blended real dataset obtained combining datasets from two different sources firing on the same streamer. The results suggest that, for a similar level of residual overlap energy, the application of de-signature before other deblending steps improves the signal preservation of the whole de-blending processing.

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/content/papers/10.3997/2214-4609.201701367
2017-06-12
2024-04-25
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References

  1. Aaron, P., Byerley, G. and Monk, D.
    [2016]. Assessing marine 3D seismic acquisition with new technology: A case history from Suriname. SEG Technical Program Expanded Abstracts 2016.
    [Google Scholar]
  2. Berkhout, A.J.
    [2008]. Changing the mindset in seismic data acquisition. The Leading Edge27, 924.
    [Google Scholar]
  3. Cheng, J. and Sacchi, M.D.
    [2015]. Separation and reconstruction of simultaneous source data via iterative rank reduction. Geophysics, 80 (4), V57–V66.
    [Google Scholar]
  4. Hargreaves, N., Grion, S. and TellingR.
    [2015]. Estimation of air-gun array signatures from near-gun measurements — least-squares inversion, bubble motion and error analysis. SEG Technical Program Expanded Abstracts 2015.
    [Google Scholar]
  5. Kumar, R., Wason, H. and Herrmann, F.J.
    [2015]. Source separation for simultaneous towed-streamer marine acquisition — A compressed sensing approach. Geophysics80 (6), WD73–WD88.
    [Google Scholar]
  6. Mahdad, A., Doulgeris, P. and BlacquiereG.
    [2011]. Separation of blended data by iterative estimation and subtraction of blending interference noise. Geophysics76 (3), Q9–Q17.
    [Google Scholar]
  7. Maraschini, M., Dyer, R., Stevens, K. and Bird, D.
    [2012]. Source separation by iterative rank reduction — Theory and applications. 74th EAGE, Extended Abstracts, A044.
    [Google Scholar]
  8. Maraschini, M., Kielius, A. and Grion, S.
    [2016]. Rank-reduction de-blending for record length extension: The example of the Carnarvon basin. SEG Technical Program Expanded Abstracts 2016.
    [Google Scholar]
  9. Robertsson, J. O. A., Amundsen, L., Pedersen, Å. S., Eggenberger, K., Andersson, F. and van Manen, D.-J.
    [2016]. Wavefield signal apparition: Simultaneous source separation. SEG Technical Program Expanded Abstracts 2016.
    [Google Scholar]
  10. Seher, T. and ClarkeR.
    [2016]. Accelerating deepwater seismic acquisition through continuous recording. SEG Technical Program Expanded Abstracts 2016.
    [Google Scholar]
  11. Telling, R., Denny, S., Grion, S. and Williams, R. G.
    [2014]. Evaluation of a broadband marine source. First Break, Vol 32, No 11, November 2014 pp. 71–76.
    [Google Scholar]
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