Binding markers

You can bind a horizon well marker to a fault well marker, which will turn the horizon well marker into a 'truncated zone' well marker. You can use this option when a horizon and fault well marker coincide in a wellbore at the location where a fault truncates a zone. Upon binding, the horizon well marker moves to the position of the fault well marker and once bound, the horizon well marker is 'tied' to the fault well marker. This means that any movement of the horizon well marker (up or down in the wellbore track) can only be done by moving the fault well marker (in the Marker Table, the depth value for the horizon well marker becomes greyed out and the Use for modeling field becomes unchecked).

There are several advantages to creating 'truncated zone' well markers:

  • They can easily be distinguished from 'normal' well markers.
  • When updating/changing the fault position during well correlation, the horizon well marker will automatically move to the same position.
  • 'Truncated zone well markers' are excluded in subsequent modeling steps, i.e. the 3D structural modeling and 3D gridding.

To bind a horizon well marker to a fault well marker

Note that the horizon well marker and zone well marker need to be in the same Marker Set.

  1. In the Well View, display the fault well marker and the horizon well marker that you want to bind.
  2. Open the floating palette (Tools > Editing Tools) and click the Bind Markers icon .
  3. Click successively on the fault well marker and the horizon well marker. The horizon marker will move to the position of the fault marker and a bind symbol appears in the left most track.

In the Marker Table, the Bound to fields are filled in for the bound markers, and the Use for modeling field of the horizon well marker is unchecked.

To unbind two markers, click the Unbind Markers icon in the floating palette, then click the bind symbol in the track. The bound markers will unbind, and the 'truncated zone well marker' will become a 'normal' well marker again.