With a 400 ton active heave compensated crane, two Oceaneering Millenium Plus-class ROVs, and a Huisman vertical lay system, the Normand Vision has serious capability to conduct deepwater subsea construction work.
The vessel is owned by Ocean Installer, a company that is focused on growing its market share withing the subsea riser, umbilical and flowline (SURF) market. It is majority-owned by private equity investment group Hitecvision.
This summer, the Normand Vision will continue its contract with Statoil at the Troll B field while conducting a riser replacement job and will then head to the Visund field to install subsea umbilicals in August. The contract for the work extension was signed on Monday.
Main Specifications of the Normand Vision:
- Design: Vard 3 06 L
- Classifications: DNV1A1, SPS, E0 DYNPOS-AUTRO, DK (+),CRANE (N), HELDK-SH, CLEAN DESIGN, NAUT-AW, Comf-V(3) C(3), ICE C, SF, BIS, TMON, VIBR
- DP Class 3
- Length overall 156.7m
- Breadth 27.0 m
- Max draught 8.5 m
- Transit speed up to 16.8 knots
Ocean Installer notes in a statement the work scope at the Visund field will include load out and transport of new umbilical riser, installation of new umbilical riser system including vertical anchor and mud mat for supporting umbilical termination assembly.
The content of the work includes all activities necessary for installation of the pliant wave umbilical riser.
The following image via Technip shows what a pliant wave riser looks like:
In a pliant wave riser configuration, an anchor on the seafloor controls the tension on the riser and maintains a constant touchdown point for the riser on the seafloor.
At Troll B, the Normand Vision will disconnect and remove the existing riser and install a new one.
The water depth in both areas is approximately 330m.
The Visund field is situated in the Tampen Area, in blocks 34/7 and 34/8, approx. 140km West of Sognefjorden and 22km North-East of the Gullfaks field. Troll is located about 80km west of Bergen.