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Abstract

Summary

We derive a new reverse-time migration solution that uses a pseudo-analytical, two-way extrapolator in order to compensate for attenuation losses in visco-acoustic media. The algorithm permits large time stepping and shares the advantages of spectral methods in allowing coarse computational grids. The extrapolation accounts for spatial variations in attenuation by using a series expansion approximation of the equations for constant attenuation. We apply the new scheme to a dual-sensor field survey from the North Sea, in which the resolution of the images is clearly improved after compensating for attenuation.

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/content/papers/10.3997/2214-4609.201412618
2015-06-01
2024-04-20

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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201412618
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Visco-acoustic Reverse-time Migration Using the Pseudo-analytical Method
Conference Proceedings 2015, 1 (2015); https://doi.org/10.3997/2214-4609.201412618
/content/papers/10.3997/2214-4609.201412618
/content/papers/10.3997/2214-4609.201412618
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