Successful use of PhaseTrace at the Ringhorne Field.

Inflow Tracers from Completion Tracer were installed in the latest production well at the Ringhorne oil field offshore Norway, operated by Vår Energi. Oil- and water-soluble tracer rods were installed in the toe and heel of the well, which is completed with a 5 1/2” open-hole screen. The tracer rods were installed in outward-vented tracer carriers.

Ringhorne’s location, off of the west coast of Norway. This oil field is operated by Vår Energi.

The objectives of using PhaseTrace in this well are to confirm oil inflow along the completed interval during clean-out, and later to identify which part of the well that has water inflow.  

Tracer chemicals will be continuously be released from the rods into the surrounding liquid and transported to surface when the well is producing. Each tracer has its own unique fingerprint. The oil-soluble tracers will dissolve when the rods are exposed to oil, and water-soluble into surrounding water. The presence of tracers in produced surface samples will therefore identify inflow and phase (oil/water) in the zones where the tracers are located.

The tracer carrier on its way offshore.

The well at the Ringhorne field was completed during April 2023 and started 5 weeks later. The collected surface sampled oil has been analyzed by Completion Tracer’s tailor-made method and clearly verify inflow from both the heel and toe of the well.

After water break-through samples over time will be collected to identify where water is produced into the wellbore.

Diagram showing cross-section of the reservoir, wellbore (dashed red line) and tracer locations at the heel and toe (orange and blue rectangle).