Editor's note: P. Mahob is now employed by BP Exploration International Inc., Anchorage, Alaska, U.S.

An alternative approach to identifying AVO anomalies, presented by Tim Keho at SEG's 2000 Annual Meeting and subsequently published in TLE (November 2001), is to consider the AVO polarization in the intercept-gradient (A–B) plane. This method does not require deviations or separations from a background trend in traditional crossplots such as intercept-gradient (A–B) or near trace-far trace (N–F). A benefit of the hodogram or polarization method is that the wavelet is taken into consideration as it is convolved with the reflection coefficient series. Crossplotted intercept...

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