High Resolution Processing and Imaging for Subtle Geological Features

We show that by extending bandwidth prior to migration the spatial resolution (lateral and vertical) can be improved, and that velocity analysis can give a more detailed velocity profile which in turn improves image quality. An increase in bandwidth prior to migration reduces both vertical and lateral wavelet widths, and, therefore, increases spatial resolution. Improved spatial resolution allows a more detailed velocity field to be defined both laterally and vertically. This approach can be applied to both time and depth migration flows.