The AVO Template: A tool for AVO interpretation

Document Type

Conference Proceeding

Publication Date

1-1-2020

Abstract

Since the mid 1980's, amplitude versus offset (AVO) data have been used by earth scientists to help in the prediction of lithology using seismic data. Although previous work has greatly aided in our ability to interpret AVO data, the AVO response cannot be easily visualized with respect to changes in rock properties, lithology, porosity, fluid type, and fluid saturation utilizing available techniques. The "AVO Template" we introduce allows for this visualization. The AVO Template is a graphical display that predicts the AVO responses at a lithologic interface using rock properties and Shuey's parabolic approximation to Zoeppritz equations. The AVO Template allows an interpreter to visualize the changes in AVO response caused by changes in rock properties. In conjunction with a Rock Physics Template, the AVO Template can also be used to help estimate fluid type, porosity, and fluid saturation. Given the proper choice of parameters, the AVO Template can be used to help predict the probability of hydrocarbons in a prospective reservoir. Possible applications of the AVO Template include conventional and unconventional exploration and production, 4D seismic interpretation, and other applications where seismic data are used to predict lithology.

Publication Source (Journal or Book title)

Seg Technical Program Expanded Abstracts

First Page

265

Last Page

269

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