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Well intervention vessel design - UT 777 CD well intervention

Tailor-made for subsea tasks in harsh weather. Mobile offshore drilling unit for subsea tasks, including top-hole drilling, subsea construction and deep water IMR. 

Optimised for Norwegian Continental Shelf and harsh environments

The UT 777 is a mobile offshore drilling unit designed to undertake a variety of subsea tasks, including top-hole drilling, subsea construction and inspection, and maintenance and repair work in deep waters. It can also be adapted to undertake light well intervention.

The design has been developed with particular focus on the special requirements valid for the Norwegian Continental Shelf, and also for further work in more northern harsh and cold environments. This tailor-made vessel will incorporate an enclosed module handling tower to ensure a safe and comfortable working environment for the crew while operating in harsh and cold conditions. The Ice-class vessel will have DP3 dynamic positioning and comfortable accommodation for 91 people. The propulsion system is based on a diesel electric generating system with azimuthing propulsion system.

Tailor-made for subsea tasks in harsh weather

  • Side
  • Aerial
  • Front
  • Aft


Integrated systems tailored to your needs

Innovation underpins everything we do. Our world-leading technology, coupled with decades of operational experience, enables us to design, build, deliver and support fully integrated system solutions for the marine industry.

These bespoke systems, developed in close co-operation with our customers, are designed to deliver lower life-cycle costs and reduce the environmental impact of operations.

Services & aftermarket support

Our support teams, located worldwide, are committed to helping you manage the vital balance between operational availability and cost. Wherever your vessel is located, our support is close at hand.

Services and support

  • 24/7 Technical support

    Our 24/7 technical support team is there to help at any time, day or night, wherever your vessel is.


    We understand the importance of having the right parts, available in the right place, at the right time.

  • Training

    Ensure that your crew is properly and thoroughly trained. This will reduce operational risk, downtime and maximise return on asset investment.