The Precaspian Basin is one of major and one of the deepest salt dome - type basins in the world The Basin potential reserves essentially exceed the ones of the North Sea Basin. In terms of fits 3D seismic and prestack depth migration (PDM) study, it has fallen behind other salt dome - type basins (Ward et al., 1994) However, due to the salt sediment thickness that can be over 4 - 5 km and to the salt shape that varies from the layer to the most complex dome configuration the application of the two techniques and their combination in the area is quite necessary. The paper deals with efficiency of the PDM on several areas of the Precaspian Basin.


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