Displaying the Velocity Model Curve

You can display the velocity model curve in the Anisotropy window. The extracted velocity curve will be derived from the velocity volume set in the Settings tab. The velocity model curve is displayed as the interval velocity along the well bore.

Generate a velocity model curve

  1. In the Anistropy window, navigate to the Settings tab.
Generate a delta curve
  1. Velocity Volume (V0): 3D velocity volume for delta derivation.
  2. Velocity Type: The type of velocity for the V0 volume.
  3. Velocity Units: The units of velocity for the V0 volume.
  4. Delta Volume: Optionally, input interval delta volume. If no volume is selected input delta will be 0 everywhere and the Vnmo used to derive the delta will be identical to V0.
  5. Sample Interval (ms): The sample interval for the computed delta curve. Defaults to the sample interval of the supplied V0 velocity. If the velocity is not in time then defaults to the sample interval of the input delta volume. If an input delta volume is not supplied or is not in time then defaults to 24 milliseconds
  1. The yellow curve is the velocity model curve extracted from the velocity volume you have defined in the Settings tab. The curve is created along the well path by converting depth to time and calculating the interval velocities.
  2. By default, the velocity model curve is activated for display. To hide the curve, go to the Tracks tab, and click the green circle at Velocity Model (V0 supplied) under the Curves: Velocity section. The green circle will turn amber, indicating that the velocity model curve is hidden.
  3. You can change the colour and thickness of the velocity model curve. Click the colour box to change the colour and type the thickness value for the velocity curve.