1887

Abstract

Summary

We demonstrate a method for simultaneous source separation using encoded source sequences that would be enabled by firing individual sub-elements of an airgun array sequentially. Such source sequences can be chosen so that they are close to orthogonal to each other and can be separated using a coherency based approach. The separation method that uses the source sequence signatures is solved by sparse inversion. Simple synthetic examples show that the separation results of the method are comparable to the separation results using dithered sources. We outline further development of the separation technique and optimization of the source sequences that may enhance the performance of the method.

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/content/papers/10.3997/2214-4609.20141457
2014-06-16
2024-04-19
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References

  1. Abma, R. and Ross, A.
    [2013] Popcorn shooting: Sparse inversion and the distribution of airgun array energy over time. SEG Technical Program Expanded Abstracts 2013, 31–35.
    [Google Scholar]
  2. Akerberg, P., Hampson, G., Rickett, J., Martin, H. and Cole, J.
    [2008] Simultaneous source separation by sparse Radon transform. SEG Technical Program Expanded Abstracts 2008, 2801–2805.
    [Google Scholar]
  3. Berkhout, A.J.
    [2008] Changing the mindset in seismic data acquisition. The Leading Edge, 27(7), 924–938.
    [Google Scholar]
  4. Halliday, D. et al.
    [2012] Full-wavefield, towed-marine seismic acquisition and applications. SEG Technical Program Expanded Abstracts 2012, 1–5.
    [Google Scholar]
  5. Moore, I., Dragoset, B., Ommundsen, T., Wilson, D., Ward, C. and Eke, D.
    [2008] Simultaneous source separation using dithered sources. SEG Technical Program Expanded Abstracts 2008, 2806–2810.
    [Google Scholar]
  6. Paige, C.C. and Saunders, M.A.
    [1982] LSQR: An Algorithm for Sparse Linear Equations and Sparse Least Squares. ACM Transactions on Mathematical Software, 8(1), 43–71.
    [Google Scholar]
  7. Robertsson, J.O.A., van Manen, D.J., Halliday, D. and Laws, R.
    [2008] Seismic data acquisition and source-side derivatives generation and application. Patent No.: US 7,492,665 B2.
    [Google Scholar]
  8. Vasconcelos, I., Robertsson, J.O.A., Vassallo, M. and van Manen, D.J.
    [2012] Reverse-time imaging of dual-source 4C marine seismic data using primaries, ghosts, and multiples. 74th EAGE Conference & Exhibition.
    [Google Scholar]
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