Abstract
Beam Pre-stack Depth Migration has provided a fast and reliable method of delivering a depth migrated cube for non-exclusive reprocessing projects in Brasil. The method was tested on a 3D reprocessing project in Sergipe Alagoas Basin with impressive results. The Beam Pre-stack Depth Migration method was developed to overcome limitations in other commercial PSDM techniques and involves three main steps: decomposition, migration and reconstruction. This paper describes the process and presents results comparing pre-stack time migrated data with the beam pre-stack depth migration. The depth migrated data provides a much more accurate image of the subsurface, improving the chance of further discoveries in this new light oil province.
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