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Abstract

Summary

Seismic attenuation is an important attribute for reservoir characterization. We propose a new method to estimate the Q-factor in pre-stack seismic data. This method is derived from the centroid frequency formula for the zero-offset and nonzero-offset amplitude spectrum. Through minimizing the misfit of centroid frequency of the nonzero-offset response compensated by Q model parameters and the centroid frequency at zero-offset, we can obtain the optimized Q-factor. This scheme doesn’t use the reference signal or define source shape, so it is more versatile than the spectrum ratio method and frequency shift method. Synthetic models and real data demonstrate that the proposed scheme is effective.

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/content/papers/10.3997/2214-4609.201413255
2015-06-01
2024-04-26

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References

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A New Pre-stack Q Inversion Method Based on Centroid Frequency
Conference Proceedings 2015, 1 (2015); https://doi.org/10.3997/2214-4609.201413255
/content/papers/10.3997/2214-4609.201413255
/content/papers/10.3997/2214-4609.201413255
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