How to Create a Fence Using the Fence Gap Method

If you are attempting to add a well synthetic to a fence that will require that you to skip over 2D line segments, use the fence gap method.

  1. To begin creating a fence, click Enter Fence Mode from the Fence toolbar (or press <f> on your keyboard).
  2. Click Fence Mode, and choose from the drop down menu (or press <2> on your keyboard).
  3. Pass your cursor over the map window. Point to the end of a 2D line or to an intersection between 2D lines. A circle is displayed. Click your left mouse to begin the first fence segment.
  4. Hold down the <Shift> key and drag the cursor along the 2D line towards the well synthetic you wish to include.
  5. Click your left mouse button to end the first fence segment and release the <Shift> key.
  6. Press the <f> key to create a fence gap.
  7. Right-click on the map window and select Well Mode from the shortcut menu (or press <w> on your keyboard). Left-click on the well symbol to include the synthetic in your fence.
  8. Press <f> again to create a second fence gap.
  9. Hold down the <Shift> key, place your cursor at the end of the first line segment, and left click.
  10. Release the <Shift> key, then drag the cursor along the 2D line and left click at the end or at the intersection of the 2D line.
  11. After you have finished defining your fence, click Display Fence and choose Drag and Drop Fence  (or press <D> on your keyboard) to display the fence in a new or existing seismic window.

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