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Abstract

Summary

Multichannel UHR seismic data are a key source of information gathered in support of offshore site investigations, enabling mapping of stratigraphic units, identification of shallow hazards and helping to form the basis of an integrated ground model. There is also potential for making greater use of seismic data for quantitative estimation of soil properties such as via amplitude-versus-offset (AVO) analysis, for which a key pre-processing step is the removal of offset-varying acquisition artefacts such as ghost reflections. De-ghosting seismic data enables quantitative interpretation and extends the bandwidth and resolution of images. However, it can be a challenging step, particularly when the sea-surface is acoustically rough and streamer depth is not accurately measured. We show the benefit of using a variable depth algorithm with an adaptive step for estimation of the receiver ghost delay as a function of channel for each shot.

© EAGE Publications BV
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/content/papers/10.3997/2214-4609.202476004
2024-08-14
2026-02-08

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References

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/content/papers/10.3997/2214-4609.202476004
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Pre-Processing UHR Seismic Data for Improved Quantitative Interpretation
Conference Proceedings 2024, 1 (2024); https://doi.org/10.3997/2214-4609.202476004
/content/papers/10.3997/2214-4609.202476004
/content/papers/10.3997/2214-4609.202476004
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