Description of a Glauconitic channel by AVO analysis

Yong Xu and John C. Bancroft


AVO analysis is performed on vertical component seismic data from a line in Blackfoot. P wave reflectivity (R P ) and S wave reflectivity (R S ) are extracted from the CDP gathers of vertical component data after true amplitude processing. A fluid factor section is obtained from R P and R S sections using the mud-rock line derived from local dipole sonic logs. By combining R P and R S sections and well logs, the Glauconitic channel can be better interpreted. On the fluid factor section, the Glauconitic channel exhibits a stronger and more detailed anomaly.

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