Amplitude analysis in the angle domain

Douglas Gratwick

doug@sep.stanford.edu

ABSTRACT

This paper discusses amplitude vs. angle (AVA) analysis using image gathers generated from a wave-equation migration algorithm. An AVA cross-plot muting algorithm is used to highlight parts of an image corresponding to a Class III, low impedance, AVO sand. Processing to eliminate surface multiples is used on the synthetic data, thereby enhancing reflectors. Results show that our AVA muting algorithm is effective for both a synthetic and a real dataset.