Offset Dependent Errors in an Amplitude Preserving

Summary Amplitude variation with offset (AVO) techniques exploit the relative changes in seismic reflection amplitudes at varying incident angles. This can be useful in quantifying the changes in elastic properties at reflection boundaries, thus providing the means to characterize subsurface lithological and fluid properties. Amplitude preservation is therefore critical to ensure accuracy of the technique. Bleistein’s implementation of Kirchhoff migration provides the means to preserve the relative amplitudes during the imaging stage. Bleistein’s method is applied to a dataset from the Rocky Mountain House area in central Alberta to investigate the errors present after migration. The migration results are compared against a synthetic result generated from measured well data.