New technology combines logging and mechanical solutions for rig time savings

Based on previous operations, an operator anticipated scale build-up on a producing, horizontal, offshore well and planned to run a Multi-Fingered Caliper (MFC) to confirm the internal diameters over its length. This would allow the determination of the optimum depth for plug setting and tubing cutting.

Welltec®, selected as the tractor supplier, proposed an effective solution whereby the MFC and plug setting could be combined in a single run for increased efficiency.

A new innovation in downhole, wireless tool communication from Welltec enabled the plug and setting tool to be run below the MFC tool without the requirement for thru-wiring.

The tool assembly was conveyed to depth by the Well Tractor® and then the caliper was logged in real time to determine the optimal plug setting depth. The tool was conveyed back down to the required depth where a command was issued using the Welltec Downhole Wireless Bridge to a non-explosive, electrically activated bridge plug. The setting sequence was initiated and completed successfully.

After the plug was set, further real-time caliper logging was acquired providing tubing status and access confirmation for subsequent e-line runs.