Processing History

WinPICS saves the processing history of your seismic for any processing done within WinPICS. The first time you process your data, WinPICS saves a history file in your project directory under the name linename.qq1, where linename is the name of your 2D line or 3D area. WinPICS will create a history file named linename.qq2 for the next processing job, and so on. (See Database Filenames for more details on file naming conventions in WinPICS.)

Viewing the History File

Right-click on your seismic and select SEGY Version from the shortcut menu.
Highlight the version of interest and click <History File>.
The history file will open. Here is an example of a history file of a 2D line to which a 30 degree phase correction was applied:

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HISTORY RECORD STARTED Wed Sep 29 14:43:14 1999

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Processing done to line LN75I on Wed Sep 29 14:43:14 1999

Interactive Line Tie [0,0,0,0] Phs: [30]

Tie Parameter file: LN75I.TF1

Input File : D:\Test Data\2d&3dint\LN75I.SGY => Output File : LN75I.YD1

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In the example above, the original line name is LN75I.SGY. The phase-corrected line is LN75I.YD1. The next processed line would be named LN75I.YD2, then LN75I.YD3, and so on. This is WinPICS standard file naming convention for 16-bit data. Please see Database Filenames for more details.
When you process your seismic data, no changes are made to your original data. New versions are created for phase and filter corrections. Corrections made to amplitude, bulk shift, and polarity are stored in a header file and applied to traces and picks for display, picking, plotting, and export.