WinPICS uses filename extensions to keep track of your seismic data for saving processing versions, horizon picks, fence displays, etc. When you create or import a new SEG-Y version for existing data, WinPICS uses the original coordinate files for display and reference. Since all versions of a SEG-Y file use one coordinate file, you can swap versions easily while you work.
The new SEG-Y version file is assigned the same filename as the original data file, but the extension name is incremented. New header and history files are created for the version and assigned the same incremented extension name as the new SEG-Y version file.
In the example below, the original 16-bit file (‘name.yd0’) has three additional 16-bit versions. Each version’s data, header, and history filenames are incremented. Versions do not all have to be of the same data type. The first version could have been a 32-bit file and the second version could have been 16-bit. In that case, the data filenames would be ‘name.fy0’ and ‘name.yd1’, respectively. The header files would be ‘name.fh0’ and ‘name.yh1’.
| Version | Data File Name | WinPICS Header File | WinPICS History File | WinPICS Coordinate File |
|---|---|---|---|---|
| Version 1 | name.yd0 | name.yh0 | name.qq0 | 2D and Well = name.xy 3D = name.3d |
| Version 2 | name.yd1 | name.yh1 | name.qq1 | Shares Coordinate File - name.xy or name.3d |
| Version 3 | name.yd2 | name.yh2 | name.qq2 | Shares Coordinate File - name.xy or name.3d |
| Version 4 | name.yd3 | name.yh3 | name.qq3 | Shares Coordinate File - name.xy or name.3d |
See Database Filenames for the naming convention of 8-bit, 16-bit, and 32-bit data files.