Next-generation IMR vessel
The “Seven Viking” is 106.5m long and 24.5m wide
The ICE-C-class vessel with a length of 106.5m and breath of 24.5m has a crew capacity of 90 and reaches a top speed of 17 knots. It will be employed for Statoil on a five-year contract. “Seven Viking” has been custom-built according to the operator’s specifications to carry out tasks including inspection, maintenance and repair of subsea installations in addition to scale treatment and RFO (ready for operations) work scopes. The “Seven Viking” has an X-BOW® hull line design to reduce motion in transit and give increased stability in the potentially high waves that characterise the North Sea, Ulstein said.
The “Seven Viking” can carry all necessary maintenance equipment on board, ensuring that operational downtime is kept to a minimum.
A customised module handling system (MHS) has been integrated into the ship’s hangar for the safe launch and retrieval of subsea modules weighing up to 70 tonnes through the moon pool.
The “Seven Viking” has been developed to meet the highest working environment standards, and is classified as a comfort class COMF-V (3) vessel. Minimal noise levels in the hangar have been achieved by opting for electric winches for the ROVs, the MHS and other utility equipment.
According to Ulstein and the vessel’s owners, notable environmental initiatives include diesel electric propulsion to reduce emissions, and the electrical winches that nullify the risk of emissions of hydraulic oil.
