1887

Abstract

Summary

Due to environmental and cultural heritage constraints, orthogonal acquisition geometries with relatively wide line intervals have been preferred in the deserts of Australia. These designs tend to suffer from a lack of traces in the near- and medium-offset ranges and typically have highly irregular fold distribution in different offset/azimuth sectors, which affects the quality of the final image and extracted seismic attributes. Recent studies have shown that interpolation and regularisation techniques can be used to increase the density of the orginal acquisition grid and remove irregularities introduced during seismic acquisition, thus addressing the inherent limitations of the imaging and inversion engines that assume uniformly regular sampling. This paper describes a case study for a radial domain interpolation approach, where the output sampling is at regular offsets and azimuths, using a Matching Pursuit Fourier Interpolation (MPFI) technique.

The result of applying radial domain interpolation and regularisation to the point-source and point-receiver, full-azimuth, Munathiri 3D survey acquired in 2013 shows an improvement in the sampling for both signal and noise using this technique. This resulted in an improved final full stack image suitable for detailed structural interpretation as well as good quality angle/azimuth gathers potentially suitable for Azimuthal AVO (AVOAz) analysis.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201413182
2015-06-01
2022-01-29
Loading full text...

Full text loading...

References

  1. Chemingui, N., and Biondi, B.
    , [1999] Data regularization by inversion to common offset (ICO): 69th Annual Internat. Mtg., Soc. Expl. Geophys., Extended Abstracts, 1398–1401.
    [Google Scholar]
  2. HuntL, DowntonJ, ReynoldsS, HadleyS, TradD, and HadleyM.
    , [2010] The effect of interpolation on imaging and AVO: A Viking case study, Geophysics, 75(6), November–December2010; WB265–WB274.
    [Google Scholar]
  3. Mackie, S.J., Grasso, C.A. and McGuire, S.R.
    , [1995] Reservoir characterization of the Toolachee Unit ‘C’ in the Moomba/Big Lake area: focusing on minimizing risk. APEA Journal, 35(1), 92–105.
    [Google Scholar]
  4. SchonewilleM, ZhimeiYan, BaylyM and BisleyR
    , [2013] Matching pursuit Fourier interpolation using priors derived from a second dataset: 83rd SEG Annual Meeting, Expanded Abstracts, 36–37.
    [Google Scholar]
  5. Vermeer, G.J.O.
    [2002] 3-D Seismic survey design, 2nd Edition, Society of Exploration Geophysicists.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201413182
Loading
/content/papers/10.3997/2214-4609.201413182
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