Layer-induced scattering attenuation and VTI anisotropy - NW Shelf Australia synthetic study

Roman Pevzner; Tobias Muller; Andrej Bona; Boris Gurevich

doi:10.1071/ASEG2015ab014

24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery

ISSN: 2202-0586
E-ISSN:

oa Layer-induced scattering attenuation and VTI anisotropy - NW Shelf Australia synthetic study
Authors Roman Pevzner^a, Tobias Muller^b, Andrej Bona^c and Boris Gurevich^d
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^a Curtin University, Perth, , WA, [email protected] ^b CSIRO, Perth, , WA, [email protected] ^c Curtin University, Perth, , WA, [email protected] ^d Curtin University, , CSIRO Perth, , WA, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2015, Issue 24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery, Dec 2015, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2015ab014
- Published online: 01 Dec 2015

Abstract

Seismic attenuation and anisotropy in the overburden can significantly affect seismic image quality, including amplitudes of the target horizons. Therefore, understanding magnitudes, causes and spatial distribution of attenuation and anisotropy is important for seismic imaging and reservoir characterization. Thin layering can cause both scattering attenuation and anisotropy. These phenomena can only be significant, if there is a strong contrast in elastic properties between the layers. We present a case study from North-West Shelf of Australia, where presence of shallow stiff carbonate layers can be responsible for deterioration of seismic data quality through both attenuation and anisotropy.

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2026-01-15

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References

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Article Type: Research Article

Keyword(s): anisotropy; scattering; seismic attenuation; vertical seismic profiling; VTI

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