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Description
The procedure of map migration is a spatial transition (migration) of the velocity field to the accurate position that is connected with the normal ray. For this purpose, the velocity is displaced from the stack domain to the migration domain for subsequent migration. This performed according to optimal values of radius of curvature RCRE and emergency angle Beta for the imaging point at each time sample.
Input data ZO-MF database data handle
Output data Map migrated velocity filled/unfilled
Visual VMF-RMS, Map migrated velocity, Map migrated velocity filled, semblance
Input data
Storage file
Link to storage file containing calculated database of ZO-MF
GMFPickingItem
Link to velocity constrain picking that can be taken from another procedure
Parameters
Max aperture for migration
Migration aperture that will be used for map migration of the velocity field
Image creation parameters
Create images before run
Threshold semblance
Threshold for event participation in migration
•Default:0
•Range:0-100
Vrms mig type
Type of optimal velocity selection. During the migration can occur situation when few velocities migrated into the same sample. The final velocity can be chosen or by maximum correlation, or can be calculated an average of all velocities migrated into this sample.
Vrms mig type
Switch between selection types
•Default:Max correlation
•Values: Max correlation, Average
Stack mig type
Switch between selection types
•Default:Max correlation
•Values: Max correlation, Average
Semblance mig type
Switch between selection types
•Default:Max correlation
•Values: Max correlation, Average
Create migrated direction's collection
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