1887
Volume 25 Number 1
  • E-ISSN: 1365-2478

Abstract

A

A satisfactory attenuation of the multiples in marine seismic may be obtained by the application of the principle of “Antiaveraging”.

This principle in a first step consists in getting the model of the organized noise, which one tries to eliminate by using an averaging method, and in a second step to subtract that model from the initial information.

Obviously the elimination of the model should not simultaneously cause the elimination of useful signals.

The model may be obtained if the considered organized noise keeps a constant shape or if its time‐space deformation is known. Besides one has to assume the time‐distance curve of the organized noise can be determined. Thus noise arrivals may be detected on the records.

The “antiaveraging” is very often efficient when organized noises are stronger than signals or when a signal, once identified, exploited and then considered as an organized noise, can be attenuated in order to make the detection of the other signals easier.

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2006-04-27
2020-05-28
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References

  1. D'Hoeraene, J., 1966, Filtrage spatiotemporel des courbures, Geoph. Prosp.14, 27–44.
    [Google Scholar]
  2. Embree, P., Burg, J. P. and Backus, M., 1963, Wide‐band velocity filtering. The pie‐slice process, Geophysics28, 948–974.
    [Google Scholar]
  3. Fail, J. P. et Grau, G., 1963, Les filtres en éventail, Geoph. Prosp.11, 131–163.
    [Google Scholar]
  4. Lamer, A., 1973, Atténuation des multiples dus à la couche d'eau en prospection sismique marine, Revue de l'Institut Français du Pétrole28, 259–260.
    [Google Scholar]
  5. Lamer, A., 1974, Antimoyenne, Revue de l'Institut Français du Pétrole29, 759–761.
    [Google Scholar]
  6. Mayne, W. H., 1962, Common reflection point horizontal data stacking techniques, Geophysics27, 927–938.
    [Google Scholar]
  7. Robinson, J. C., 1970, Statistically optimal stacking of seismic data, Geophysics35, 436–446.
    [Google Scholar]
  8. Schneider, W. A., Prince, E. R., and Giles, B. F., 1965, A new data‐processing technique for multiple attenuation exploiting differential normal move‐out, Geophysics30, 348–362.
    [Google Scholar]
  9. Smith, M. K., 1956, Noise analysis and multiple seismometer theory, Geophysics21, 337–367.
    [Google Scholar]
  10. White, R. E., 1973, The estimation of signal spectra and related quantities by means of the multiple coherence function, Geoph. Prosp.21, 660–703.
    [Google Scholar]
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