Journal
GEOPHYSICS
Volume 76, Issue 2, Pages P1-P10Publisher
SOC EXPLORATION GEOPHYSICISTS
DOI: 10.1190/1.3528758
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- University of Oklahoma Attribute-Assisted Seismic Processing and Interpretation (AASPI) Consortium
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Spectral decomposition is a proven, powerful means of identifying strong amplitude anomalies at specific frequencies that are otherwise buried in the broadband response. Most publications focus on using spectral magnitude instead of phase components to identify lateral changes in stratigraphy, wavefield attenuation from the quality factor Q, and unconformities between geologic formations. Although seismic acquisition and processing preserve phase very well, little has been published about interpreting the phase components resulting from spectral decomposition. Morlet complex wavelet transform phase residues can improve seismic spectral decomposition interpretation by detecting the phase discontinuities in the joint time-frequency spectral phase component. Phase singularities can be associated with geologic features, and work with phase residues can improve interpretation of the Anadarko basin Red Fork channels of Oklahoma, U.S.A.
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