Publication History: This article is based on "Crain's Seismic Petrophysics" by E. R. (Ross) Crain, P.Eng., first published in 2003, and updated annually until 2016. This webpage version is the copyrighted intellectual property of the author.
Do not copy or distribute in any form without explicit permission.

Amplitude Versus Offset Case History
An AVO model and case history is shown below for a Cretaceous Glauconitic channel sand. It shows how easily AVO can be used to identify different geological scenarios.
 


AVO models (wet, gas, shale) and real data                                                            


AVO models (oil, gas, shale) and real data


AVO model, seismic section, and final interpretation map
 
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