3D SEG-Y using external "Nav" file?
I am wondering if anyone who works with 3D SEG-Y volumes has encountered volumes "in the wild" that get their X,Y trace coordinates from an external "Nav" file? In all of the cases I've seen, either
- The text header or a "load sheet" ties 3 or 4 Inline/Xline coordinates to actual X,Y coordinates,
- the trace headers have proper X,Y coordinate fields, or
- both a & b
Technical Product Manager
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