Print Email Facebook Twitter Fast multifrequency focal beam analysis for 3D seismic acquisition geometry Title Fast multifrequency focal beam analysis for 3D seismic acquisition geometry Author Wei, W. Fu, L. Blacquiere, G. Faculty Civil Engineering and Geosciences Department Geoscience & Engineering Date 2012-02-17 Abstract A method for the efficient computation of multifrequency focal beams for 3D seismic acquisition geometry analysis has been developed. By computing them for all the frequency components of seismic data, single-frequency focal beams can be extended to multifrequency focal beams. However, this straightforward method involves considerable computer time and memory requirements, especially in complex media settings. Therefore, we propose a rapid 3D multifrequency focal beam method in which only a few single-frequency focal beam computations are followed by a number of smart interpolations. The 3D wavefield extrapolation in the focal beam analysis is conducted by the combined applications of a 3D degenerate Fourier migrator and a 3D Born-Kirchhoff interpolation operator, a process that reduces the computational cost for complex media. The multifrequency focal beam analysis is applied to a 3D model from an oil field of China, demonstrating how spatial sampling differences affect seismic imaging. Subject 3Dacquisitionsurvey designwave propagationFourier transform To reference this document use: http://resolver.tudelft.nl/uuid:32cd1f37-7d49-49ce-a837-df02436a375b DOI https://doi.org/10.1190/GEO2010-0327.1 Publisher Society of Exploration Geophysicists ISSN 0016-8033 Source Geophysics, 77 (2), 2012 Part of collection Institutional Repository Document type journal article Rights (c) 2012 Society of Exploration Geophysicists Files PDF Blacquiere_2012.pdf 1.81 MB Close viewer /islandora/object/uuid:32cd1f37-7d49-49ce-a837-df02436a375b/datastream/OBJ/view