Chinese offshore designs gain AiP
The WTS has been developed to install offshore wind turbines (Source: DNV GL)
The Arctic single-column drilling unit consists of a round floater with upper and lower hulls, an enclosed deckhouse and a round footing. It has a 16-point mooring system and is designed for well work-over and exploration and development drilling operations in Arctic and sub-Arctic regions with open water and an ice thickness of up to 1.5m. The conical shape of the hull is intended to deflect and break ice, thereby protecting the drilling riser and other equipment in the moonpool against level ice.
The wind turbine shuttle (WTS) has been designed for the installation of turbines at offshore wind farms. The vessel has a small waterplane area twin hull which provides low resistance at the 16m design draught, as well as good seakeeping performance and motion characteristics. It has a transit speed of up to 14 knots. The unit, which can undertake the transport and installation of jacket foundations, piles and other wind farm components, is capable of carrying two fully assembled wind turbines or two wind turbine foundations. The dynamically-positioned unit also has wind turbine hoist tackles that are equipped with active compensation systems to offset any heave motion of the vessel.
