[[Amplitude]] versus [[offset]] anomalies at sites in the vicinity of previous detailed modeling can be [[Seismic inversion|inverted]] to obtain acoustic parameter information. Using the layered model from the previous step as the starting point for the inversion process, the final [[compressional velocity]], [[density]], and [[Poisson's ratio]] information can be found. This is then used to predict the probable geological circumstances at the inversion site.
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[[Amplitude]] versus [[offset]] anomalies at sites in the vicinity of previous detailed modeling can be [[Seismic inversion|inverted]] to obtain acoustic parameter information. Using the layered model from the previous step as the starting point for the inversion process, the final [[compressional velocity]], [[density]], and [http://en.wikipedia.org/wiki/Poisson%27s_ratio Poisson's ratio] information can be found. This is then used to predict the probable geological circumstances at the inversion site.
A successful inversion of an AVO response provides the following:
A successful inversion of an AVO response provides the following:
Line 87:
Line 87:
* The thickness of the pay zone
* The thickness of the pay zone
* The value of Poisson's ratios near the anomaly
* The value of Poisson's ratios near the anomaly
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* The [[lithology]], [[porosity]], and [[fluid content]] of a given layer
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* The [[lithology]], [[porosity]], and fluid content of a given layer