Sentinel Subsea, a prominent provider of subsea well integrity monitoring solutions, has successfully concluded a six-figure project involving the deployment of two WellSentinel Coral systems for a major operator in the North Sea.
The WellSentinel Coral systems were used to monitor well integrity throughout the suspension phase, delivering ongoing surveillance to support safe and effective operations. The deployment was initiated and completed in February 2025.
Notably, this project is the first instance of WellSentinel technology being deployed at the onset of a well’s lifecycle, demonstrating the value of passive monitoring in offshore environments. By using this method, the operator follows the As Low As Reasonably Practicable (ALARP) principle, reducing risks tied to future scheduling ahead of the Christmas tree (XT) installations.
Neil Gordon, CEO of Sentinel Subsea, expressed his satisfaction with the project’s completion: “We are thrilled to have successfully completed this project, which highlights Sentinel Subsea’s commitment to safety, innovation, and growth. This is a key moment for us, as it is the first time our WellSentinel technology has been deployed at the beginning of a well’s lifecycle. Partnering with a major operator in the North Sea strengthens our presence in the region and contributes to our continued global expansion.”
The Coral systems were installed from the jack-up onto 18 ¾” wellheads via crane wire through the Texas deck. Each unit was preconfigured to detect integrity issues before installation, streamlining operations and eliminating the need for in-well intervention.
