Method for determining the principal axes of azimuthal anisotrop

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type

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367 56, 364421, G01V 130

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055089739

ABSTRACT:
A method for measuring the principal axis of fracture-induced formation anisotropy. Amplitude vectors are measured from CMP gathers oriented along in-line and cross-line wavefield trajectories. The amplitude vectors are resolved with the known orientations of the seismic lines of survey to estimate the azimuth of the anisotropic axis.

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