Often we come across examples in which the initial processing of a 3D seismic volume results in interpretations that are geologically suspect—e.g., cases involving complex faulted patterns or subtle stratigraphic plays. Similarly, postmortem analysis may cite small fault displacements or obscure seismic data as reasons for dry wells. In such cases, the usual practice is to create a new version of the 3D volume with some target-oriented processing to improve imaging in the zone of interest that will, in turn, lead to more accurate interpretation. This helps in some cases, but in others some questions remain unresolved.

In the latter,...

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