Wave-equation common-angle gathers for converted waves
نویسندگان
چکیده
Seismic images obtained by multicomponent wave-equation migration can be decomposed into angle-gathers with a transformation that generalizes the equivalent construction for primary waves. A particularly simple formulation is to use all three components of the offset vector separating sources and receivers at image points. Using full vector offsets, multicomponent angle-gathers are built using simple transformations that are implemented partially in the Fourier domain and partially in the space domain.
منابع مشابه
ave-equation angle-domain common-image gathers for converted waves
Wavefield-extrapolation methods can produce angle-domain common-image gathers ADCIGs . To obtain ADCIGs for converted-wave seismic data, information about the image dip and the P-to-S velocity ratio must be included in the computation of angle gathers. These ADCIGs are a function of the half-aperture angle, i.e., the average between the incidence angle and the reflection angle. We have develope...
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