1887

Abstract

Summary

Land seismic acquisition requires a dense receiver grid in order to deal with groundroll. Relaxing the spatial sampling requirement will help reduce the field effort and improve the efficiency of the seismic acquisition. In this paper, we show that the spatial sampling interval can be increased by up to 3 times Nyquist when the vertical wavefield and its spatial gradients are used for wavefield reconstruction. To test this approach, a field data set was acquired where spatial gradients were estimated by differencing the response between two geophones. These field data are decimated and subsequently reconstructed to a dense spatial grid using a matching pursuit based method. The results are discussed and evaluated to assess the order of aliasing that can be recovered when gradients are used.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201412592
2015-06-01
2020-06-02
Loading full text...

Full text loading...

References

  1. Barak, O., Jaiswal, P., de Ridder, S., Giles, J., Brune, R. and Ronen, S.
    [2014] Six-component seismic land data acquired with geophones and rotation sensors: Wave-mode separation using 6C SVD. 84th Annual International Meeting SEG, Expanded Abstracts, 1863–1867.
    [Google Scholar]
  2. Goodway, B.
    , [2013] Cost Efficient Acquisition to Reduce Coarse Land 3D Line Spacings through Beyond Nyquist Interpolation and Wavefield Reconstruction for Signal and Noise. CSPG/CSEG/CWLS GeoConvention.
    [Google Scholar]
  3. Özbek, A., Vassallo, M., Özdemir, K., van Manen, D. J. and Eggenberger, K.
    [2013] Reconstruction of Signals from Highly Aliased Multichannel Samples by Generalized Matching Pursuit. Proceedings of the 10th International Conference on Sampling Theory and Applications (SampTA).
    [Google Scholar]
  4. Muyzert, E., Kashubin, A., Kragh, E. and Edme, P.
    [2012] Land seismic data acquisition using rotation sensors. 74th EAGE Conference & Exhibition, Extended Abstracts, X033.
    [Google Scholar]
  5. Vassallo, M., Özbek, A., Özdemir, K., and Eggenberger, K.
    [2010] Crossline wavefield reconstruction from multicomponent streamer data: Part 1 Multichannel interpolation by matching pursuit (MIMAP) using pressure and its crossline gradient, Geophysics, 75, WB53–WB67.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201412592
Loading
/content/papers/10.3997/2214-4609.201412592
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error