Introduction
The seismic interpretation tool lets you interpret horizons, faults and observations. This can be done both manually and automatically.
The structure of a horizon in Geocap is as follows:
- One horizon can contain interpretation for several seismic lines
- Each line can have many segments
- Each segment can have many picks
This means that each horizon will normally contain thousands of picks along different seismic lines. Each pick is stored with the following information:
- Time value
- Seismic line name
- Shot point
The seismic interpretation tool can be found under Tools -> XI Interpretation.
The interpretation menu
The way Geocap stores its horizon data is compatible with most other seismic interpretation systems.
On this page:
Interpreting horizons
Use the Seismic Control tab for interpreting horizons.
The Data section lets you browse in, create new or edit existing interpretation folder and horizons. There are also options for selecting which seismic line to interpret and what to display for each seismic line and horizon
The Tracking section lets you decide how to interpret the horizon. You can make the tracker snap to either max or min, or leave it off. The tracking mode has three different options:
- Manual works the same way as normal digitizing, inserting a straight line between each point you digitize.
- Insert lets you automatically track a section between two points in an existing line. The interval option decides the interval between traces.
- Auto lets you automatically track a whole line. The delta Z option decides how many milliseconds it is allowed to "jump" up or down between each trace.
The Erase section lets you delete segments of an interpreted line. You can delete a segment between two selected points, between the start of the line and a selected point or between a selected point and the end of the line.
Manual interpretation
Automatic interpretation