4Subsea Secures Supply Agreement for a Riser Monitoring System on the Bacalhau Field in Brazil

Asker, October 12th, 2021 – 4Subsea has been awarded a supply agreement for a riser monitoring system for steel catenary risers on the FPSO on the Bacalhau field in Brazil. 

The system will use 4insight® Subsea Asset Integrity which combines advanced strain and motion sensors to measure vessel movement and riser load with algorithms. This will be used to calculate riser pressure and hoop stress, accumulated riser fatigue damage and the damage rate to the steel catenary risers on the FPSO. The digital service is delivered as monitoring dashboards and data fed into Equinor’s data platform for further analysis.

The riser monitoring system provided to Bacalhau is based on 4insight® Subsea Asset Integrity, a digital service that continuously monitors the physical integrity of different subsea and offshore infrastructures using retrofittable autonomous sensors and algorithms and machine learning methods optimised for different assets and measurements. The results are presented as easy-to-interpret insights and dashboards, simplifying the complex analysis and effectively support critical decisions. The data is also available through open APIs, which the Operator’s own data platforms can access for further analysis.

“We are pleased to be chosen to provide this riser monitor system for Bacalhau. Our monitoring solutions have proven to reduce operational risk and costs during complex operations and are great demonstrations of the digital transformation of offshore operations to increase safety ”. CEO of 4Subsea, Peter Jenkins.

The same sensors, technology, and algorithms have been adapted to monitor fatigue and integrity on offshore wind installations to monitor the integrity of the construction and cables, demonstrating the versatility and robustness of 4Subsea’s sensor technology and digital services.


About 4Subsea

4Subsea is a leading provider of technology and services that help operators optimise energy production from subsea oil & gas fields and offshore wind farms. They combine domain expertise with data analytics and digital services to maximise lifetime of assets, reduce operational cost and optimise future projects through data-driven design.

4Subsea delivers critical decision support to energy providers on 4insight®, enabling lifetime extension of assets and operational uptime. They combine operational experience with digital capabilities to automate engineering processes and help operators reduce risk and cost.

The company was established in 2007, and its clients include the major energy operators as well as the large suppliers of subsea equipment. 4Subsea is headquartered in Asker, Norway, with additional offices in Bergen, Kristiansand, Stavanger, Rio de Janeiro, and Aberdeen. www.4subsea.com


Media Contact
Digital Marketing Manager Ina Ellingsen – ina.ellingsen@4subsea.com