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Abstract

Summary

Absorption in the Earth attenuates high frequency seismic signal progressively with depth, reducing resolution and limiting the interpretability of the data. While absorption may be corrected for in migration, for many geological settings this is not necessary and application of a post-migration Q compensation offers a flexible alternative. Conventional post-migration Q compensation methods often rely on artificial mechanisms to limit amplification of noise, at the cost of unintentionally restricting recovery of signal. In this paper we propose an amplitude Q compensation technique using 3D sparse inversion. Comparisons with a conventional approach on synthetic and field datasets highlight improved signal recovery and noise suppression with the proposed method. We also describe an extension to our technique which additionally accounts for spectral shifting effects inherent in seismic data after migration. Finally, we show how our method may be combined with spectral enhancement techniques to further broaden signal bandwidth.

© EAGE Publications BV
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/content/papers/10.3997/2214-4609.201701332
2017-06-12
2024-04-24

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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201701332
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Structurally Consistent Amplitude Q Compensation Using tau-px-py Inversion
Conference Proceedings 2017, 1 (2017); https://doi.org/10.3997/2214-4609.201701332
/content/papers/10.3997/2214-4609.201701332
/content/papers/10.3997/2214-4609.201701332
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