Velocity analysis on seismic data

Details Velocity analysis on seismic data Velocity analysis on seismic data

2006-02-07

2006-02-07

Keith, Jack (Department: 3663)

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

C367S038000, C367S052000, C367S073000, C702S014000, C702S018000

Reexamination Certificate

active

06996028

ABSTRACT:
A number of seismic stacks are precomputed (20) for known velocity fields. The velocity fields are chosen to span the range of velocities of interest. The stacks are then arranged (21) in the 3D memory of a graphics computer (10–14) using time and position as first dimensions and the index of the velocity field as the last dimension. In such 3D space, any velocity field to be used for stacking appears as a surface (S) within a volume. Projecting the seismic stacks onto that surface provides the seismic line stacked for the velocity field of interest.

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