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Description
Function for transformation of V RMS-COMFinto map migrated velocity
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. Unlike ZOMF(map migration), COMF map migration calculated for each offset class and final velocity is the sum of all velocities of offset classes.
Input data – CO-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 CO-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
Use all offsets
Will use all offset classes for map migration
Create images before run
Threshold semblance
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
Stack mig type
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