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AVO ANALYSIS
COURSE OUTLINE
Definitions of amplitude variation with offset (AVO)
Zoeppritz equations review
Gassmann equations review
Offset-dependent reflectivity
Approximations to the Knott and Zoeppritz Equations
Information Content
Petrophysics fundamentals and bases for equations and hypotheses
Complicating problems
Near surface considerations
General data quality issues
Curvature and structural complexity
Geometrical spreading normal moveout errors
Overburden effects
Processing considerations
Naïve applications of Rock Physics principles or uncooperative petrophysical circumstances
Seismic data processing for AVO analysis
Interpretation of AVO data
Enhanced oil recovery monitoring
Lithology identification
Porosity identification
Land vs. marine AVO
Interpretation techniques
Elastic inversion
Multicomponent AVO
Effects of AVO on conventional interpretation
Critical angle effects
Future Directions
Conclusions
Exercises
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