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Hydro International -
Polarcus is building two seismic vessels of the new generation type SX134 at the Ulstein Verft shipyard, to be delivered in 2012. ULSTEIN has designed and built a number of seismic vessels the past few years already. The two new generation ULSTEIN SX134s will receive their ICE-1A* class notation from DNV. This notation allows these vessels to operate in Arctic waters under harsh ice conditions without the assistance of icebreakers.
The entire vessel is ice-reinforced with thicker ribs and skin plates. The vessel has de-icing and ice-preventing systems at critical tanks and pipelines. Propellers, gears and thrusters are chosen and dimensioned based on specific rules for withstanding operation in ice. The two propellers are driven by two electric motors each; this ensures continuous operation and manoeuvring if parts of equipment are damaged. In addition, the ship has the DNV notation WINTERIZED BASIC. Escape corridors and rescue equipment are also protected against icing during Arctic operations. The vessel will have two workboats and an MOB on board.
The two vessels will be equipped for 3D seismic, and will get three additional lead-in winches on deck and two extra towing points adding up to fourteen towing points in all (fourteen streamers).The additional winches provide added flexibility to enable personnel to easily replace or repair components during operations, avoiding costs related to downtime. The SPS code provides added safety and enables operations worldwide. The vessel also carries the Clean Design Certificate.
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