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Optimizing Illumination Using Multiples - Application to Seismic Acquisition Analysis
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 76th EAGE Conference and Exhibition 2014, Jun 2014, Volume 2014, p.1 - 5
Abstract
A subsurface image is often biased by the acquisition deficiencies, the so-called acquisition footprint. Often, this footprint cannot be predicted straight-forwardly, especially when the subsurface structures are complex. The method of focal beam analysis enables a proper evaluation of the influence of the acquisition geometry, overburden, and the migration. This method is in accordance with wave theory, and therefore it enables a quantitative analysis of image quality at the target. So far, this method makes use of the primaries-only wavefield. However, the subsurface is not only illuminated by the primary source wavefield but also by the secondary source wavefield as generated by surface-related as well as internal multiples. We extended the focal beam theory such that it makes use of all multiply scattered waves.