3D cube from parallel 2D GPR lines (DZT files) I inserted the X,Y coordinates in the fileheader of each GPR line and exported them in SEG-Y format. I also created a 3D SEG-Y file using the Reflexw software. The GPR survey comprises 14 parallel 22m-width GPR lines spaced 0.5 m with a 70 ns time range. I created the following OpendTect survey:

I can import 2d SEG-Y files without problem.

The SEG-Y Examiner shows that the X,Y coordinates (73, 77) and Inline (189) information of the imported files seems ok, but the Crossline information (193) is always null. Because this problem I choose the X,Y coordinates to import the data. So, an error window popped out, saying that the input data is cross-line sorted and I should use the SEGY-scanned import method. I tried another approach creating a 3D SEG-Y file in Reflexw. This file contains inlines and cross-lines information (see figure below), but the error message comes out, saying that the input data is crossline sorted and I should use the SEGY-scanned import method. From this point on I can’t go further without help. Where can I find the SEGY-scanned import method?

Import 3D SEG-Y file:

3D cube from parallel 2D GPR lines (DZT files) I ... -

The GPR survey comprises 14 parallel 22m-width GPR lines spaced 0.5 m with a ... data is cross-line sorted and I should use the SEGY-scanned import method.

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