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ABSTRACT: The Use of Amplitude vs. Offset (AVO) Technique in the Pierce Road Previous HitGasNext Hit Field, Sutter County, California

TOLMACHOFF, WAYNE, Dekalb Energy, Bakersfield, CA

The AVO (amplitude vs. offset) technique became an important exploration tool for Dekalb following our initial Sutter County Previous HitgasNext Hit discovery in 1981. This technique requires the acquisition of seismic data with close horizontal resolution and an adequate range of station offsets to identify Forbes Previous HitgasNext Hit sands. Many different ways to display the AVO information have been used and the only preference is having access to many analysis techniques. This work resulted in the discovery of Pierce Road Previous HitgasNext Hit field in 1987. Successive field developments has resulted in 11 completed wells out of 12 attempts, with the single failure showing excellent AVO out of noncommercial Previous HitgasNext Hit sand. This above-average probability of success is a result of incorporating other geologic information into the prospect des ription and by understanding the limitations of the AVO technique. The ability to predict the presence of productive sands is enhanced by the use of the personal computer and the incorporation of measured shear wave velocities.


AAPG Search and Discovery Article #91016©1992 AAPG-SEPM-SEG-Previous HitEMDTop Pacific Section Meeting, Sacramento, California, April 27-May 1, 1992 (2009)