Sentinel Subsea, a specialist in subsea well integrity monitoring, has successfully delivered a six-figure project involving the deployment of two WellSentinel Coral systems for a major operator in the North Sea.
Supporting a large-scale drilling campaign, the project represents a key step in enhancing offshore safety and operational effectiveness.
The Coral systems provided continuous integrity monitoring throughout the well suspension period, helping to ensure safe operations during this critical phase. The deployment took place entirely in February 2025.
Notably, this is the first time the WellSentinel technology has been deployed at the start of a well’s lifecycle, underscoring the value of passive monitoring early in offshore developments. The operator’s adoption of this strategy aligns with the ALARP (As Low As Reasonably Practicable) principle, reducing risk exposure during planning delays before christmas tree installation.
“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,” said Neil Gordon, CEO of Sentinel Subsea.
The Coral systems were installed onto 18 ¾” wellheads from a jack-up rig via the texas deck using crane wire. As the units were preconfigured for detection before installation, no in-well intervention was required, streamlining operations.
Headquartered in Aberdeen since its founding in 2018, Sentinel Subsea continues to deliver passive monitoring solutions globally for both major and independent operators. This project further establishes its leadership in subsea well integrity monitoring.
