Summary It is well known that seismic imaging under complex salt is a challenging endeavor and the industry is still struggling despite all the progress that has been achieved. However, it is possible, with high-quality data and careful analysis, to extract reservoir information from subsalt amplitudes. In this paper, we present an example from the deep-water GoM and illustrate the possibility of mapping reservoir fluids under complex salt structures. The sand package we investigate lies below 12000 ft of salt in 3000 ft of water. (Figure 1).
Stacking is one of the most routinely used geophysical algorithms and is applied in both the data and the image domain. Nowadays, it is common to decompose image volumes as a function of opening angles, vector offsets, shot directions and various other attributes. However, they need to be combined in order to obtain a high quality final image stack. This has led to a renewed interest in the process of stacking. In this abstract we propose a general framework to perform the task of optimal stacking. We present the results on synthetic and field data examples using an algorithm that fits within this general framework.