1887

Abstract

Summary

This paper presents how an interactive method in spectral decomposition can facilitate and improve processes in exploration. This study focuses on the Maui field, located offshore New Zealand, in the Taranaki basin. Its aim is to emphasize specific geological features by interactively performing spectral decomposition at different locations on surfaces generated from a Relative Geological Time (RGT) model. This model is obtained thanks to seismic interpretation based on horizon auto-tracking trough a grid (Pauget et al., 2009) and its refinement. It provides a new way to achieve a strata-slicing into the seismic data and allowing a quick and interactive navigation throughout the surfaces. By combining this workflow with the analysis of frequency variations along geological events, it is possible to get an enhanced spectral decomposition of geological features from their averaged spectral signature (low, medium and high frequencies). Each one of these key frequencies was mapped on surfaces and blended into a Red-Green-Blue (RGB) viewer. Such a technique allows the interpreter to better highlight turbidite channels which were then extracted as geobodies with a high rate of confidence.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201700526
2017-06-12
2020-05-26
Loading full text...

Full text loading...

References

  1. Beller, M., Lacaze, S., Pauget, F. and Mangue, M.
    Fast Leveraging of Seismic Information over Large Areas — A Central North Sea Case Study. EAGE Extended Abstract, June2012.
    [Google Scholar]
  2. Gupta, R., Cheret, T., Pauget, F. and Lacaze, S.
    Automated Geomodelling a Nigeria Case Study. EAGE Extended Abstracts, B020, June2008.
    [Google Scholar]
  3. LacazeS., PaugetF., LopezM., GayA., MangueM.
    , 2011. Seismic Stratigraphic Interpretation from a Geological Model — A North Sea case Study. Eliis — University of Montpellier II. SEG Annual Meeting, San Antonio2011.
    [Google Scholar]
  4. LemaireR., PaugetF., LacazeS., CheretT., MangueM. & Horno KortC.
    A Multi Scale Approach on Large Seismic Volumes — Tunisia Case Study. EAGE Extended abstracts, 72nd EAGE Conference & Exhibition, June2010.
    [Google Scholar]
  5. Pauget, F., Lacaze, S., and Valding, T.
    , 2009. A global approach to seismic interpretation base on cost function and minimization. SEG, Expanded Abstract, 28, no. 1, 2592–2596, (2009)
    [Google Scholar]
  6. Schmidt, I., Lacaze, S. and Paton, G.
    Spectral Decomposition combined with geo-model interpretation: Creating new workflows by integrating advanced technologies for seismic imaging and interpretation., EAGE, Abstract, June2013.
    [Google Scholar]
  7. Strogen, D.P., Bland, K.J., Bull, S., Fohrmann, M.F., Scott, G.P.L. and Zhu, H.
    Regional seismic transects of selected lines from Taranaki Basin. GNS Data Series 7b, 2014.
    [Google Scholar]
  8. Thrasher, G.P.
    Late Cretaceous Geology of Taranaki Basin, New Zealand, 16–20. 1992.
    [Google Scholar]
  9. Vidalie, M., van Buchem, Frans., Schmidt, I., Uldall, A.
    , Seismic Stratigraphy of the lower Cretaceous Valhall Fromation (Danish Graben, North Sea) — evidence for eustatic and local tectonic control. EAGE Extended Abstract, June2012.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201700526
Loading
/content/papers/10.3997/2214-4609.201700526
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