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The AAPG/Datapages Combined Publications Database
Houston Geological Society Bulletin
Abstract
Abstract: New 
AVO
Classification to Develop High-Quality
Prospects in the Gulf Coast
AVO Classification to Develop High-Quality
Prospects in the Gulf CoastBy
eSeis, Inc.
A new classification for AVO (amplitude versus offset) is
proposed that considers all clastic reservoirs regardless of
the polarity of impedance contrast with the overlying shale or its
change with increasing offset. The new classification includes ten
classes of AVO types.
Examples from the Gulf Coast illustrate the application of this
approach in exploration for pressured Wilcox objectives: typical,
type II and less-common, type III AVO responses can be productive.
Other examples include a classic “AVO-flip” where
pressured, brine-filled sand has a negative AVO response and the
gas-filled case has a positive AVO
response.
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