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  Spatial resolution of the nonstationary phase estimation method: Ketzin case study

Diersch [Gil], M., Herrera, R. H., van der Baan, M., Lueth, S., Krawczyk, C. (2014): Spatial resolution of the nonstationary phase estimation method: Ketzin case study - Proceedings, 76th EAGE Conference & Exhibition (Amsterdam, The Netherlands 2014).
https://doi.org/10.3997/2214-4609.20141315

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Diersch [Gil], M.1, Autor              
Herrera, R. H.2, Autor
van der Baan, M.2, Autor
Lueth, S.1, Autor              
Krawczyk, C.M.3, Autor              
Affiliations:
1CGS Centre for Geological Storage, Geoengineering Centres, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146050              
2External Organizations, ou_persistent22              
32.7 Near-surface Geophysics, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_1412893              

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Schlagwörter: seismic, Ketzin, high resolution
 Zusammenfassung: Local phase analysis can serve as a complementary tool in seismic interpretation because amplitude, peak frequency and phase of the locally observed wavelet are determined by the local reflectivity that is by layer thickness, type of impedance contrast, and boundary shape. To estimate the local phase, statistical methods like kurtosis-based phase estimation, can be applied. Their advantage is that they do not require well logs and analyze the seismic data directly, which allows for instance to analyze whether spatial and/or temporal variations occur in the amplitude and phase spectrum of the seismic wavelet. Here, we investigate the spatial resolution of the kurtosis-based phase estimation for the Ketzin 3D seismic data set from the Northeast German Basin and show that the decrease of phase estimation block size allows to estimate the spatial variations in the local phase and following also the local geology with high resolution. The phase distribution follows the geological structure of the anticline visible already in the amplitudes and may reveal potentially additional details to conventional amplitude imaging.

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 Datum: 2014
 Publikationsstatus: Final veröffentlicht
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Titel: 76th EAGE Conference & Exhibition
Veranstaltungsort: Amsterdam, The Netherlands
Start-/Enddatum: 2014-06-16 - 2014-06-19

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Titel: Proceedings
Genre der Quelle: Konferenzband
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