Topic:
How to load shot points when the SEGY file contains duplicate shot points

Description:
Sometimes when there are two traces per shot point, the SEGY file contains
duplicate shot point numbers. The Data Loader cannot handle this properely but
you can use an expression during the load to get around this.
     

Solution:
1) In Define input data format, under Key parameter source: select Expression
   for SP.

2) Click on the 'Shot point/CDP expressions' button and where 'SP =' input the
   following expression:

   SP=SP; IF(SP.EQ.FA); THEN; SP=FA+.5,ENDIF; FA=SP

   OR

3) You can input the starting shot point in 'S1 =' field and input increment by
   .5(or -.5)



Last Modified on: 07-APR-00