Import SEG-Y

Use the 3D View > Import SEG-Y menu option (geogxnet.dll(Geosoft.GX.SegY.ImportSegy;Run)*), to import SEG-Y files.

This is the first dialog in the SEG-Y Import wizard. Select the SEG-Y file that you wish to import, specify whether it is a 2D profile or a 3D volume, and specify whether its vertical dimension is "Depth" or "Time". If it is a 3D volume, you may also specify a pre-existing survey file that maps Inline & Crossline coordinates to X & Y.

Import SEG-Y dialog options

Input SEG-Y file	Browse to select the SEG-Y file you wish to import.
2D or 3D	Specify whether the input SEG-Y file contains a 2D profile or a 3D volume.
Input survey file	If the input SEG-Y file is a 3D volume, you may also specify a pre-existing survey file that maps Inline & Crossline to X & Y coordinates.
Depth or Time	Specify whether the vertical axis represents depth or time.
[Text Header]	Click this button to view the Text Header in a separate, read-only window.
[Binary Header]	Click this button to view the Binary Header in a separate, read-only window.
[Trace Viewer]	Click this button to view the Trace Viewer in a separate, read-only window, which allows you to view the trace headers and trace data plot for any selected trace.

Application Notes

The SEG-Y Standards (Rev. 0 & 1) specify the appropriate locations for information and the data formats used to store them. However, the specifications are not rigidly followed, and files are written using many, often poorly-documented variations. For instance, the standard states that all trace headers should be written as 2- or 4-byte integer values, but some fields may be stored as floating point values. This wizard and the Trace Viewer are designed to follow the standard but also to allow flexibility in how an SEG-Y file is read, should exceptions be encountered.

*The GX tool will search in the "...\Geosoft\Desktop Applications \gx" folder. The GX.Net tools, however, are embedded in the geogxnet.dll located in the "...\Geosoft\Desktop Applications \bin" folder. If running this GX interactively, bypassing the menu, first change the folder to point to the "bin" folder, then supply the GX.Net tool in the specified format.