Subsea control systems incorporating high-bandwidth communications and electrical power supply for offshore Oil & Gas production facilities. The solution called DC/FO, co-developed with Equinor, is based on DC power transport and fiber optics communications and addresses cost-efficiently tieback field architectures. It targets near-unlimited distances and deep water operations, with superior reliability and resiliency and is considered as the base for “all electric” subsea control solutions allowing significant cost-savings. The solution is based on standard product whatever the project configuration, avoiding cost and delay required for new qualification of equipment.

DC/FO Subsea Control which allows :

- Long distance reach of subsea wells (long tie back) with high power supply.
- Use of standart, low costs, field proven products from telecom industry to lower capex requirement.
- Expendability of the field. Possibility to phase the development.
- Repair of failing umbilicals (Electrical insulation fault)

Recently, ASN has been awarded by Equinor a fiber optics cable subsea deployment project in the North sea, one with the newly qualified DCFO technology for the subsea control of the Johan Castberg development.