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The AAPG/Datapages Combined Publications Database

Houston Geological Society Bulletin

Abstract


Houston Geological Society Bulletin, Volume 47, No. 1, September 2004. Pages 23-23.

Abstract: New AVO Classification to Develop High-Quality Prospects in the Gulf Coast

By

Roger A. Young
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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