1887
ASEG2010 - 21st Geophysical Conference
  • ISSN: 2202-0586
  • E-ISSN:
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Abstract

Summary

There has been considerable interest recently in data acquisition using simultaneous sources because of the enormous improvements in acquisition efficiency and source sampling that the method proffers. Realizing these improvements in practice requires an appropriate combination of survey design, acquisition technology and data processing capabilities. Given a suitably-designed survey, I show that simultaneous-source data can be separated effectively into equivalent datasets for each source. These datasets may then be processed using conventional techniques, which benefit naturally from any improvements in sampling.

Several field datasets, employing a variety of acquisition geometries, illustrate the viability and limitations of this approach. The main limitation comes from ambiguities in the separation process, which can be resolved to a large degree by using source dithering techniques in combination with a separation algorithm that includes an effective sparseness constraint. The use of more than two sources simultaneously adds to the potential of the method and is shown to be viable provided the survey is designed appropriately.

© 2010 ASEG
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/content/journals/10.1081/22020586.2010.12042002
2010-12-01
2026-01-25

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References

  1. Beasley, C.J., Chambers, R.E., and Jiang, Z., 1998, A new look at simultaneous sources: 68th Meeting, SEG, New Orleans, Expanded Abstracts, 133-135.
  2. Beasley, C.J., 2008, Simultaneous sources: A technology whose time has come: 78th Meeting, SEG, Las Vegas, Expanded Abstracts, 2796-2800.
  3. Dragoset, W.H., Li, H., Cooper, L., Eke, D., Kapoor, J., Moore, I. and Beasley, C.J., 2009, A 3D wide-azimuth field test with simultaneous marine sources: 71st Conference and Exhibition, EAGE, Amsterdam, Extended Abstracts, Z037.
  4. Lin, T.T.Y. and Herrmann, F.J., 2009, Unified compressive sensing framework for simultaneous acquisition with primary estimation: 79th Meeting, SEG, Houston, Expanded Abstracts, 3113-3117.
  5. Moldoveanu, N., Kapoor, J. and Egan, M., 2008, Full-azimuth imaging using circular geometry acquisition: The Leading Edge, 27, 908-913.
  6. Moore, I., Dragoset, W., Ommundsen, T., Wilson, D., Ward, C. and Eke, D., 2008, Simultaneous source separation using dithered sources: 78th Meeting, SEG, Las Vegas, Expanded Abstracts, 2806-2810.
  7. Sava, P., 2007, Stererographic imaging condition for wave‐equation migration: 77th Meeting, SEG, San Antonio, Expanded Abstracts, 2245-2249.
  8. Stefani, J., Hampson, G. and Herkenhoff, E.F., 2007, Acquisition using simultaneous sources: 69th Conference and Exhibition, EAGE, London, Extended Abstracts, B006.
  9. Verschuur, D.J. and Berkhout, A.J., 2009, Target‐oriented, least‐squares imaging of blended data: 79th Meeting, SEG, Houston, Expanded Abstracts, 2889-2893.
/content/journals/10.1081/22020586.2010.12042002
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  • Article Type: Research Article
Keyword(s): blended data; Radon; separation; simultaneous source

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