Seawell Talisman Case Study North Sea Cold Weather Intervention Campaign
Helix Well Ops UK was contracted by Talisman Energy Inc to execute a series of well maintenance, production, enhancement, and decommissioning workscopes on five different wells in the UKCS sector of the North Sea in the winter of 2012. Over the course of the 68 day operation, the Seawell and her crew successfully completed the following tasks on Talisman fields:
Highlander: Remedial subsurface safety valve operations
Tartan: Well suspension and well integrity operations
Enoch-South Wood: Three plug & abandonment operations with wellhead removal
Tweedsmuir: Pumping and scale-squeeze operations
Claymore: Mechanical repair, well maintenance, and integrity operations
The cold weather campaign was successfully executed, with a total uptime of 74.8 percent, in water depths ranging from 90 to 140 meters.