Kirchhoff prestack depth scalar migration of complete wave fields in a simple velocity model with triclinic anisotropy: PP, PS1 and PS2 waves

Vaclav Bucha

Summary

We test 3-D ray-based Kirchhoff prestack depth scalar migration and calculate migrated sections in a simple anisotropic velocity model. The velocity model is composed of two homogeneous layers separated by a curved interface. The upper layer has triclinic anisotropy and the bottom layer is isotropic. The synthetic complete seismic wave field is calculated using the Fourier pseudospectral method. We apply a scalar imaging to each component of the complete wave field in a single-layer velocity model with the same triclinic anisotropy as in the upper layer of the velocity model used to calculate the recorded wave field. We display and discuss resulting migrated sections.

Keywords

Fourier pseudospectral method, 3-D Kirchhoff prestack depth scalar migration, anisotropic velocity model, triclinic anisotropy, complete wave field

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Seismic Waves in Complex 3-D Structures, 30 (2020), 29-40 (ISSN 2336-3827, online at http://sw3d.cz).