Horizon-based residual depth migration velocity analysis

Details Horizon-based residual depth migration velocity analysis Horizon-based residual depth migration velocity analysis

2006-06-20

2006-06-20

Keith, Jack (Department: 3663)

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

C367S037000, C367S038000, C367S050000, C367S052000, C702S018000

Reexamination Certificate

active

07065004

ABSTRACT:
A method is disclosed for processing seismic data. The method includes prestack depth migrating the seismic data to generate common image gathers using an initial velocity-depth model. Horizons in the migrated seismic data are selected. Residual migration velocity analysis in the depth-offset domain is performed with respect to each selected horizon, and the velocity-depth model is updated based on the residual migration velocity analysis.

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