1887

Abstract

Summary

Multimeasurement towed streamer data are subject to several different sources of noise that can limit the recoverable signal content. Most existing noise attenuation techniques rely on processing each measurement separately. We propose a simple joint spectral subtraction approach to attenuate the noise in the crossline and vertical pressure gradient data. The approach utilizes the relation between the pressure and its spatial gradients to estimate a maximum threshold that can be applied to the power spectrum of any component of the full particle motion vector measurements limiting the noise leakage while maximizing the protection of the signal. The original phase of the measurements is preserved in the estimated signal, and therefore this method can be considered as a zero phase nonlinear filter with a magnitude between 0 and 1.

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/content/papers/10.3997/2214-4609.201700580
2017-06-12
2024-04-24
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References

  1. Amundsen, L.
    [1993]. Wavenumber-based filtering of marine point-source data. GEOPHYSICS, 58(9), 1335–1348.
    [Google Scholar]
  2. Özbek, A., Vassallo, M., Özdemir, K., van-Manen, D.J. and Eggenberger, K.
    [2010] Crossline wavefield reconstruction from multicomponent streamer data: Part 2 - Joint interpolation and 3-D up/down separation by generalized matching pursuit. Geophysics, 57, WB69–WB85.
    [Google Scholar]
  3. Özdemir, K., Kjellesvig, B.A. and Özbek, A.
    [2012] Digital noise attenuation of particle motion data in a multicomponent 4C towed-streamer. 74th EAGE Conference and Exhibition, Extended Abstracts
    [Google Scholar]
  4. Kamil, Y.I., Vermeer, P.L., Vassallo, M.
    [2015] Noise attenuation in multimeasurement streamer data using weighted vector auto regressive operators. SEG Technical Program Expanded Abstracts 2015, 4636–4640.
    [Google Scholar]
  5. Rentsch, S., Bodyakin, S., Espezua, L.P., Budyn, L., Ozbek, A. and Watterson, P.
    , 2014, October. Signal-Protected Noise Attenuation for Multimeasurement Towed-Streamer Data. In 2014 SEG Annual Meeting. Society of Exploration Geophysicists
    [Google Scholar]
  6. Robertsson, J., Moore, I., Vassallo, M., Özdemir, A.K., van Manen,D-J. and Özbek, A
    . [2008] On the use of multicomponent streamer recordings for reconstruction of pressure wavefields in the crossline direction. Geophysics, 73, A45–A49.
    [Google Scholar]
  7. Vassallo, M., Özbek, A., Özdemir, K. and Eggenberger, K.
    [2010] Crossline wavefield reconstruction from multicomponent streamer data: Part 1—Interpolation by matching pursuit using pressure and its crossline gradient. Geophysics, 75, WB53–WB67.
    [Google Scholar]
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