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ENHANCED MIGRATION OF SEISMIC DATA 1
Author(s) -
CARRION PHILIP M.
Publication year - 1990
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1111/j.1365-2478.1990.tb01869.x
Subject(s) - reflection (computer programming) , diffraction , tomography , wavefront , geology , diffraction tomography , amplitude , inversion (geology) , seismology , seismic tomography , optics , mineralogy , physics , tectonics , computer science , programming language
A bstract The so‐called ‘enhanced migration’ which uses diffraction tomography as the ‘repair tool’ for correction of amplitudes (reflection coefficients) of migrated sections is discussed. As with any linearized procedure, diffraction tomography requires knowledge of the initial model. It is suggested that the initial model is taken as the migrated image. It will be demonstrated that diffraction tomography applied to the data residuals improves the amplitudes of the migrated images. Migration is redefined as the reconstruction of the wavefront sets of distributions (reflection interfaces), and the inversion process as tomographic correction of migrated images.