Isotek Electronics have been making control systems for sub-sea operations since 1984. One of our key projects, the Pipeline Repair Spread (PRS), is funded by a consortium of oil companies managed by StatoilHydro. Isotek has been involved with the PRS since its concept design and has developed the primary control system's hardware and software.

The PRS is a sub-sea pipeline repair and construction system developed for use in the North Sea. Work on the system began with the development of computer controlled, hyperbaric, mechanised welding. It has been enhanced over the years to enable it to operate at 1000m depth with ongoing design to cope with greater depths and to include: 

• Hyperbaric welding (both remotely operated and diver assisted)
• Hot Pipeline Tapping
• Habitat installation, control and telemetry
• Pipe manipulators
• Concrete and coating removal
• Pipe cutting
• Mechanical coupling installation & operation
• ROV tooling

Installation and activation of sub-sea units is via power and communication cables that can be interconnected to other live equipment or connected direct to the surface.

The equipment has been deployed on the following fields:

• Oseberg
• Gullfaks
• Snorre-Statfjord
• Haltenpipe
• Zeepipe
• Troll-Zeepipe
• Sleipner Vest
• Llangeled
• Aasgard
• Ormen Lange