Page 16: of Marine Technology Magazine (September 2014)
Ocean Observation: Gliders, Buoys & Sub-Surface Networks
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Vessels
The Ulstein Verft subsea newbuild,
Island Performer, was delivered to
Island Offshore. The fl exible, state-of- the-art RLWI/IMR vessel will serve her fi rst fi ve years for FTO in the Gulf of
Mexico. “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 3,000m, and the contracted work start at year’s end,” said Managing
Director Håvard Ulstein, Island Off- shore. “However, the very fi 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-meter main moon pool.
She is equipped with a 250-metric-ton
AHC (active heave compensated) off- shore 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 star- board side,” Ulstein said.
Island Performer is the next genera- tion subsea vessel from Ulstein, with large accommodation, storage and lifting capacities. She meets the highest standards for station keeping, redun- dancy and dynamic positioning (DNV
GL class notation DYNPOS AUTRO, equivalent to DP3). Additionally, operability in DYNPOS AUTR (DP2) operational mode is maximized due to the Operation+ feature with a three-split confi guration on main machinery. This set-up allows the vessel to retain system integrity and to continue operations uninterruptedly even after a substantial single system failure.
A shelterdeck is stretching all the way past the main moon pool and aft to the main crane. This increases the operational 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-metric-ton skidding pallets. The design also includes a heavy-load cargo deck for transporting equipment for a multitude of operations and construction work.
North Sea
Atlantic Joins
Technip fl eet
In late July a ceremony was held in Bergen, Norway to offi cially name the latest new subsea construction vessel to join the Technip fl eet, the North
Sea Atlantic. More than 200 guests from shipowner North
Sea Shipping, ship charterer
Technip and supply chain part- ners, gathered to attend the ceremony held at the NorYards
BMV AS shipyard (previously
Bergen Group) in Laksevåg,
Bergen, Norway. The event was hosted by North Sea Shipping
CEO, Hallvard Klepsvik, and his wife, Sigrid Anne Våge, acted as the vessel godmother.
Technip announced in 2012 that it had signed a long term charter agreement with North
Sea Shipping for an advanced new build construction vessel.
During the two year construc- tion period, teams from the two companies worked together closely to ensure the project was delivered to expectations.
Designed to Technip’s specifi - cations, this multi-purpose ves- sel is capable of undertaking pipelay, subsea construction and IRM projects.
The vessel’s design meets the highest requirements for subsea work and although she will work predominantly in the North Sea, she is also suitable for deepwater opera- tions worldwide. This advanced
DP class 3 vessel is equipped with a 550 ton active heave- compensated crane and a 2,000 ton underdeck carousel for product storage. She can accommodate an Openable
Vertical Lay System for pipelay of fl exibles and umbilicals.
Island Performer for Deep-Sea Subsea Work (Photo: Uls tein Group/Marius Bec k Dahle)
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