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- W2038897213 abstract "Azimuth moveout (AMO) transforms 3-D prestack seismic data from one common azimuth and offset to different azimuths and offsets. AMO in the time-space domain is an integral operator defined in the time and midpoint coordinates. The operator components are the summation path, the weighting function, and the aperture (range of integration). The summation path and the weighting function can be determined by cascading dip moveout (DMO) and inverse DMO for different azimuths the time-space domain. To evaluate the aperture, we apply a geometric approach, defining AMO as the result of cascading prestack migration (inversion) and modeling in three dimensions. The AMO spatial extent found by the proposed procedure depends on the reflection wave velocity and decreases substantially with a decrease of the azimuth rotation. When the azimuth rotation angle approaches zero, AMO converges to the twodimensional offset continuation operator. Thus the aperture limitations provide a consistent description of AMO for small azimuth rotations and justify the economic efficiency of the method in practical applications, such as cable feathering corrections in marine seismics." @default.
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- W2038897213 date "1995-01-01" @default.
- W2038897213 modified "2023-09-24" @default.
- W2038897213 title "The time and space formulation of azimuth moveout" @default.
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- W2038897213 doi "https://doi.org/10.1190/1.1887281" @default.
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