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Use the Seismic Control tab for when interpreting horizons.
The In the Data section lets create new or browse for and edit existing interpretations 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:
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you can browse in new interpretations and horizons or you can create new ones. The Edit button lets you change the properties and graphical settings of interpretations and horizons. You can display horizons in the graphical window directly from the interpretation menu without using the regular commands.
Before you can start interpreting you will have to select the seismic line you want to interpret on. Do this by displaying one or several seismic lines from the project and then use the Select button in the interpretation menu and click on the one you want to interpret.
Manual interpretation
Select the Snap mode you want to use. Geocap can snap to either max (peak) or min (trough) or none of them. Using the snap mode will help you increase the precision when interpreting. When you have set the tracking parameters click the Start interpretation button and start digitizing with Y along the horizon. Click the Stop button to stop the digitizing.
Automatic interpretation
Geocap can track a whole seismic line automatically. This saves a lot of time when dealing with strong continuous reflectors. Select a snap mode and set the track mode to Auto. The delta Z value will constrain the auto-tracker to a time interval it is allowed to "jump"
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between each
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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 interpretationshot point. Click the Start interpretation button, point your mouse on the line you want to interpret, press Y and Geocap will interpret the whole line.
You can also partially auto-track a line using the Insert tracking mode. Click the Start interpretation button, point your mouse where you want to start the interpretation, press Y and the point the mouse where you want to end the automatic interpretation and press Y. Geocap will then interpret this segment automatically.
Edit or erasing interpretation
You can edit the interpreted line by clicking the Start interpretation button and simply re-digitize the section you want to edit. Geocap will automatically update the line when you click the Stop button.
There are three options for erasing segments of an interpreted line:
- Between 2 picks - Use Y to select which points to delete between
- Between beginning and pick - Use Y to select end point.
- Between pick and end - Use Y to select start point.
Use the Erase button when erasing.