The full stack shows a bright spot at 640 ms.600-700-Time(ms) Many dry holes were encountered due to false bright-spots caused by coals.Drilling success was been enhanced through the use of AVO.īasic AVO AnalysisWe will start our AVO analysis by looking at some simple displays of the gas sand example:The CMP stackNear and far trace stacksThe common offset stackAmplitude envelope displays Summary of AVO MethodologyInput Raw GathersOptimum ProcessingRecon MethodsInversionModellingGradient/InterceptPartialStacksPrimaries only WaveEquationĪVO ExampleWe will illustrate AVO with a Cretaceous gas sand example from Alberta.Traditionally, wells were drilled in this area based on bright-spot anomalies. Outline of TalkReview of AVO principlesAVO attributesAVO cross-plotting3D AVOAVO and Anisotropy Brian Russell and Dan HampsonHampson-Russell SoftwareCalgary, Alberta.
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