Page 64: of Marine Technology Magazine (July 2014)

MTR MTR 100 100Norway?s Ulstein is the  rst name in design and construction for vessels serving the offshore industry. The Ulstein Verft subsea new- build, Island Performer, was delivered to ship owner Island Offshore, yet an- other in a long line of  exible, state-of- the-art RLWI/IMR vessels from innova- tor and MTR100 company Ulstein Verft. ?The vessel is customized to suit the scope of work in the FTO contract, in which RLWI (Riser-less Light Well In- tervention) and IMR (Inspection/Main- tenance/Repair) are the main tasks. She is able to perform operations at depths down to 3,000 m, and the contracted work start at year?s end,? said Håvard Ulstein, Managing Director, Island Off- shore. ?However, the very  rst assign- ment will be for the RogFast connection in Norway, in which the scope of work will be to investigate the sea bottom.? ?A large intervention tower is placed over the 8 x 8-m main moon pool. She is equipped with a 250-ton AHC (ac- tive heave compensated) offshore crane with a below-deck winch, and carries two deep-sea work ROVs, one to be launched through a dedicated moon pool and the other from the starboard side,? said Ulstein. ?Island Performer? is the next genera- tion subsea vessel from Ulstein, with large accommodation, storage and lift- ing capacities. She meets the highest standards for station keeping, redun- dancy and dynamic positioning (DNV GL class notation DYNPOS AUTRO, equivalent to DP3). Additionally, oper- ability in DYNPOS AUTR (DP2) op- erational mode is maximized due to the ?Operation+? feature with a three-split con guration on main machinery. This set-up allows the vessel to retain sys- tem integrity and to continue operations uninterruptedly even after a substantial single system failure. A shelter deck is stretching all the way past the main moon pool and aft to the main crane. This increases the operation- al window for moon pool work and offers a shielded space for various equipment. Arranged on the shelter deck is a multi-skidding system for handling 100-tonne skidding pallets. The design also includes a heavy-load cargo deck for transporting equipment for a multitude of operations and construction work. ?Island Offshore has previous expe- rience with this design,? said Håvard Ulstein. ?The two SX121 designed ves- sels already in our  eet have proved to be very successful to us. We are certain that the ?Island Performer? will achieve good results in complex deep water op- erations in the Gulf of Mexico.? FTO is a joint venture between FMC Technologies, Edison Chouest Offshore and Island Offshore. CEO Gunvor Ulstein, Ulstein Group, said ?The three contracting companies combined have extensive competence in the advanced subsea segment. Together, we have developed a solution which is particularly adapted to both RLWI and IMR work, and we strongly believe that the ?Island Performer? will prove her value in the years to come.? Ulstein Photo: Ulstein Group, Tonje Alvestad July/August 2014 64 MTRMTR #6 (50-65).indd 64MTR #6 (50-65).indd 647/31/2014 10:01:11 AM7/31/2014 10:01:11 AM