Introduction
In this section we will go through the import of 2D seismic lines in SEG-Y format and navigation lines in UKOOA format. Sometimes it can be very difficult to import seismic lines because different companies use different settings, the header could be missing or wrong and so on. However, the SEG-Y reader in Geocap is very flexible, so you should be able to import any SEG-Y line. Read more about the SEG-Y import here: Importing SEG-Y
Exercises
2D SEG-Y
The demo dataset contains numerous seismic 2D lines. In this example, the user will import seismic lines from 2 different seismic 2D surveys. (Note: It was previously four, but for rational reasons it is cut down to two).
Exercise
Import 2D SEG-Y files
- Create 2 sub-folders under your 2. Seismic Data folder called Survey3 and Survey4.
- Right-click on the Survey3 folder and select Import > SEG-Y 2D...
- Browse in the first file in the \inbox\03Seismic\S3_UTM50S folder, to investigate the format settings before reading all the lines.
- Set Shot point to byte position 5-8 (typical Kingdom export).
- Press the Scan button and select the Scan results tab. Your result should like the
- Check that the X and Y coordinates, Z and shot points looks reasonable.
- Browse in all the SEG-Y files in the \inbox\03Seismic\S3_UTM50S folder.
- Click Execute and close the dialogue when completed.
- Repeat this procedure for Survey 4
Exercise
Import UKOOA navigation files
- Create a Generic top level folder called 4. Navigation with two sub level folders called Survey3 and Survey4.
- Right-click on the Survey3 folder under 4. Navigation and select Import > UKOOA Lat Lon...
- Browse in the file UKOOA_Survey4.asc in the \04Navigation folder.
- Make sure your import menu looks like the image below
- Click Execute
