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Wave Equation Based Multiple Modelling - Comparison of Nominal and Dense Acquisition Geometries
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 68th EAGE Conference and Exhibition incorporating SPE EUROPEC 2006, Jun 2006, cp-2-00200
- ISBN: 978-90-73781-00-9
Abstract
Marine seismic data acquired over seafloors with rough topography are characterized by the presence of complicated multiple energy patterns. We present a model-based surface-related multiple modelling technique free from any constraint relating to the shot position and distribution. This technique may require streamer interpolation/extrapolation, but does not require any sail lines reconstructions. We are comparing results with conventional and dense acquisition geometries on a Norwegian Sea dataset. The sail lines were shot with 50% overlap for testing of 3D SRME techniques with special attention to the acquisition geometry. The results achieved with nominal and dense acquisition geometries are equivalent, as a consequence the proposed approach does not require dense cross sail line acquisition geometries neither dense cross sail line data reconstruction.