Abstract
Improved seismic imaging below a complex fault zone, more continuity of reflections, better focusing of faults and less noise are achieved by anisotropic Prestack depth migration (PreSDM). It improves the image quality by reducing noise, more continuity of reflections and better fault definition. The obtained results had a major impact on drilling of new wells. The technology of PreSDM may improve imaging of other Libyan prospects that are located below complex fault zones. To achieve success, this technology requires significantly more attention and involvement from oil company’s geophysicists and area geologists than standard seismic processing techniques.