Summary

In this chapter, I migrate a real 3D seismic dataset from the Gulf of Mexico with shot profile migration. The dataset contains specular water-bottom multiples, peg-leg multiples associated with a large, shallow salt body, and diffracted multiples originating at the salt edges. Both the water bottom and the salt body have significant cross-line dip which makes it difficult to model the trajectory of the multiples and to apply 3D SRME. The location of the multiples in the image domain is severely affected by the presence of the salt and thus do not follow the geometry of the multiple-generating interface. As a consequence, some multiples could easily be interpreted as primaries. I show that primaries and multiples (even subsalt) can be discriminated by their different moveouts in SODCIGs and ADCIGs as in Chapter .