Conclusions

Given a satisfactory image perturbation, TIF WEMVA successfully produces a velocity model that completely eliminates FEAVO anomalies through prestack depth migration. However, TIF WEMVA ceases to converge to the desired result when the Born approximation is not fulfilled because of a velocity starting model that is too far from the correct model. Fortunately, there are several possible fixes to this problem. Extracting the image perturbation proves somewhat more complicated than expected, but we have identified and are studying possible new solutions to the problem.