Recent exploration and subsequent drilling in the Gulf of Mexico has demonstrated significant reservoir potential below salt structures. Conventional seismic methods fail to image beneath them because of the complex nature of the salt body and the high velocity contrast at the salt-sediment interface. Ratcliff, Gray and Whitmore (TLE, April 1992), among others, have demonstrated the need for full-volume 3-D prestack depth migration for imaging beneath salt. However, the development of these algorithms is very complex and requires appropriate test data.

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