Import seismic data and extract a wavelet from it. Apply this wavelet to a model to improve the tie between the seismic and the model.
To extract wavelets:
1. From the Edit menu, select Wavelet
(
).
The Wavelet
dialog box opens.
2. Beside the Extractionlabel, click Extract.
The Wavelet Extraction dialog box opens.
3. Click Import and navigate to the seismic section upon which to base the extracted wavelet. If you launch the above dialog box from the Seismic Properties dialog box or there are already seismic lines in the model, the Seismic Data drop-down list is already populated.
The Set Time Range dialog box opens, where you specify the time
range and number of traces to sum, and then click OK.
4. Using the Frequency Wavelet Extraction dialog box, specify the extraction method, and then click Next to display the Extracted Wavelets panes.
In the above dialog box, in the pane to the left, the GeoSyn model trace is displayed with a portion of the seismic section on either side. In the Seismic Selection pane, a bird's eye view of the well header with respect to the seismic is displayed. In the Extracted Wavelet pane in the top-right, the wavelet that will be extracted is displayed.
5. Modify the processing options as follows:
To restrict the extracted range, using the left pane, drag the green arrows (
) up from the bottom or down from the top of the range.
OR
Type the top and bottom of the extraction range in the Seismic Selection pane in the bottom-right of the Frequency Wavelet Extraction dialog box.
Click the arrows in the bottom-left of the model display pane to zoom.
6. Click Next to display the Save Options dialog box.
7. Select from the following options:
Select a current model(s) in the display pane, and then click Replace Model Wavelet to overwrite its wavelets. CTRL+Click or SHIFT+Click for multiple selection.
Add to Library to save wavelets that can then be imported using a centralized library of wavelets you create. The wavelet library is shared by all GeoSyn projects.
Export to a SEGY file.