WellCAD Basics - Advanced Logic Technology

Editing Methods:
APPENDIX A - 399
New data points and already existing values can be edited using the Tabular Editor
(see 1.3.2.14 The Tabular Editor). If your data is displayed in Projection or Tadpole
style you can use your mouse to insert and edit data points in the log column.
Editing Data in Projection Style:
Usually you superimpose the Structure Log to an Image or RGB Log to pick the
events seen in the images. To insert a new structure and fitting a sine wave:
� Select the log.
� Move your mouse pointer onto the feature you would like to pick and
press the Shift key. Your cursor is displayed as a cross.
� Click to set a point of the sine wave. With your Shift key still pressed
continue to click until the displayed sine wave fits the observed structure.
(Try setting the first points to the min and max of the observed structure.)
� Release the Shift key to lock the sine wave in and derive azimuth and dip
angle.
To delete a sine wave:
� Select the log.
� Press the CTRL key and click on the sine wave you wish to delete.
To measure the aperture:
� Select the log.
� Hold down the CTRL and SHIFT keys.
� Move your mouse pointer onto a sine wave. The cursor’s shape will
change.
� Click and drag the sinusoid apart and fit it to the opening seen on screen.
The aperture value will automatically be saved along with depth, dip and
azimuth angle.