Requirements for SEG-Y Import

In order for WinPICS to import a SEG-Y file, the data in the file must be arranged in the following format:

All traces in the file must be the same length.
The endian must be the same in trace and binary headers as in trace data samples.
All files must be in SEG-Y structure, and include binary and trace headers.
Only UTMUniversal Transverse Mercator or State Plane coordinates are allowed.
3D datasets must be sorted in the in-line direction.
Before loading, you should scale up any SEG-Y file values < 0 to at least 1.
3D datasets must include all internal traces. Missing external traces can be dropped. However, any missing internal traces must be written as dead traces.

If your headers are missing x/y coordinates, shotpoints, or in-line/cross-lines, you can still import your data.
If your 2D import data is missing values, use a survey file (see 2D Survey Import).
If your 3D data is missing x/y coordinates, see 3D In-line/Cross-Line Import.
If your file is missing in-line/cross-lines, see 3D Coordinate Import.
If your 3D data is missing both x/y coordinates and in-line/cross-lines, see 3D Rectangular Import.
For accurate, simple, and fast SEG-Y import, we recommend you use the Divestco Workstation-Ready SEG-Y format.

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