12.4 Markers and Links to Geological Boundaries

A specialized wellbore marker frame is used to carry marker interpretations along the well ( Figure 12.5-1 , blue boxes). Each measured depth node can be associated with a marker. Each marker has full traceability through a citation element. Markers can also be associated with individual geological boundary elements through optional references to a geologic, fluid, or contact feature. When a wellbore marker defines a fluid contact, fluid marker, or geologic boundary, it is highly recommended that you provide a related boundary feature interpretation. If you don't have a real boundary feature interpretation, then just create an empty one to house the UUID.

Markers can also be associated with a WITSML formation marker.