Sentinel Subsea, a leading provider of subsea well integrity monitoring solutions, is pleased to announce the successful completion of a six-figure project involving deploying two WellSentinel Coral systems for a key operator in the North Sea. This project supports a large-scale drilling operation and is a significant milestone in the company’s ongoing efforts to enhance offshore safety and operational efficiency.

Sentinel Subsea Business Development Director Elliot Kinch with the WellSentinel Clam System

The WellSentinel Coral systems continuously monitored the integrity of the wells throughout the suspension period, ensuring safe and efficient operations during this crucial phase. The deployment began and was completed in February 2025.

This project marks the first time WellSentinel technology has been implemented at the start of a well’s lifecycle, showcasing the benefits of passive monitoring in multiple offshore operations. By adopting this approach, the operator is adhering to the As Low As Reasonably Practicable (ALARP) principle, minimising risks related to future operational scheduling while awaiting the installation of the christmas trees (XT).

Neil Gordon, CEO of Sentinel Subsea, expressed his satisfaction with the project’s completion, saying, 
“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.”

WellSentinel Clam Deployment

The WellSentinel Coral systems were installed from the jack up onto 18 ¾” wellheads through the texas deck via crane wire. Preconfigured for detection before installation, the systems streamlined the deployment process, eliminating the need for in-well intervention.

Founded in 2018 and based in Aberdeen, Sentinel Subsea has successfully deployed WellSentinel™️ passive monitoring solutions for both major and independent operators worldwide. This latest project further reinforces its position as a leader in subsea monitoring technologies.

KeyFacts Energy Industry Directory: Sentinel Subsea