By applying a ray-based three-dimensional vector migration process to fully elastic three-component synthetic Vertical Seismic Profiling data, we are able to demonstrate that the process gives an accurate compressional reflection image of the complex formation without much visible artefacts from spatial aliasing, or from ‘migration smiles’ caused by the limited aperture of the receiver array. We demonstrate that the process reconstructs images of both steeply dipping salt flanks, and the sediments that tend to be dragged along by the moving salt and truncated against the sides of the salt body. The process uses raw unseparated data as input, and the wavefield separation of compressional and shear waves are done by projection operators inside the kernel of the migration process. The compressional reflection image appear to have no visible artefacts from the abundance of converted shear.

中文翻译：

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复杂三维结构成像，将三分量矢量偏移应用于合成垂直地震剖面数据

通过将基于射线的三维矢量偏移过程应用于完全弹性的三分量合成垂直地震剖面数据，我们能够证明该过程提供了复杂地层的准确压缩反射图像，而没有太多来自空间混叠的可见伪影，或由接收器阵列的有限孔径引起的“迁移微笑”。我们证明，该过程重建了陡倾盐侧的图像，以及倾向于被移动的盐拖曳并在盐体的侧面被截断的沉积物的图像。该过程使用未分离的原始数据作为输入，压缩波和横波的波场分离由偏移过程内核内的投影算子完成。