AVO Modeling and Interpretation (2 day course)

A common technique employed in the exploration and estimation of hydrocarbons is Amplitude Variation with Offset ( AVO). We will treat this topic from a rock physics modeling view point. We will develop the modeling capabilities from simple fluid substitution and bright spots, stacked amplitudes through classical AVO (slope and intercept) modeling and cross-plotting. AVO parameter sensitivity analysis will be treated. The influence of anisotropic shales will also be covered in the modeling. The emerging converted wave modeling capabilities will also be discussed. You will develop an appreciation for the power and limitations of AVO analysis and its sensitivity to fundamental rock and fluid properties.

Topics to be covered:

1) Introduction to AVO theory, isotropic exact and linearized formulations
2) Discussion of various linearizations
3) Cross-plotting considerations
4) Anisotropic effects on AVO
5) Converted wave AVO
6) AVO sensitivities and case differentiation
7) AVO as a Direct Hydrocarbon Detector (DHD)

 

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Last modified: 08/14/04