Gather Amplitude Operation

Perform specified Extraction Property on selected 4D volume and 4D horizon. Some properties operate on a window of values above and below the horizon. The extraction method is the same as selecting the Property to display in the navigation bar of the Map View.

Where is the Gather Amplitude operation?

The Gather Amplitude operation is found in the Map View, under the Operations tab (along with other Horizon Operations).

  1. Open the Map View.
  2. Expand the left panel and open the Operations tab.
  3. At Operation, select Gather Amplitude Operation.

Tip: Click the Help icon to read more information about this operation.

Configuring Create Gather Horizon operation

  1. In Volume, select the 4D gather volume.
  2. Select the Extraction Property.
  3. Select a 4D Horizon.
    • The above and below window (default 50 m/s)
  4. Select the 4D Operation:
    • Sum: Sum of the extracted property in the 4thD direction
    • Average: Arithmetic mean of the extracted property in the 4thD direction
    • Min: Minimum value of the extracted property in the 4thD direction
    • Max: Maximum value of the extracted property in the 4thD direction
    • Single offset/angle amplitude extraction: Extracted amplitude at a single user defined 4thD value
  5. Click Calculate to start the operation.

Completing the operation

After running the operation:

  • At Class: Choose the Display Class for the results
  • Use min and max from class settings (checked)
    • Use amplitude ranges from the class. Update the range in the display class.
  • Use min and max from class settings (not checked)
    • Set specific a min and max value for this result.
    • Click Adjust to set the Min and Max from the extracted amplitude.
  • Click Discard to cancel this calculation and delete the results.
  • Click Create to create a new horizon containing the extracted values.
  • Click Add property to store the result as a horizon property.

Note: To rename the horizon, see Horizon Details and Configuration.