DNV GL awards CMHI AIPs for arctic SCDU

4/17/2019

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China Merchants Heavy Industry design for an arctic single column driling unit. Photo: DNV GL.

SHANGHAI — DNV GL’s Head of Technical Centre China Falk Rothe handed over the two certificates to Dr. Lixin Xu from China Merchants Offshore Technology and Research Center (CM-OTRC). The management team and project members from CM-OTRC also joined the ceremony.

“CMHI and DNV GL have been partners in strategic cooperation for many years. Together, we both aim to not only set industry standards in ship and offshore unit designs, but contribute to safer and more environmental-friendly operation,” said Norbert Kray, DNV GL’s regional manager Greater China. “We are very grateful that CMHI have made us their first choice for classification services for these two projects and we look forward to strengthening our cooperation in the future.”

The arctic single column drilling unit (SCDU) consists of a round floater with an upper and a lower hull, an enclosed deckhouse, and a round footing. It is designed for well work-over, exploration, and development drilling operations in water depths up to 2,296.6 ft (700 m) in moderate environments, including Arctic and sub-Arctic areas (open water and up to 1.5 m ice thickness), moored by a 16-point mooring system. The round conical shape of the strengthened hull structure is designed to deflect and break the ice, protecting the drilling riser and other equipment in the moonpool against level ice. DNV GL assessed the design according to a high-spec class notation string: 1A Cylindrical Drilling Unit(N) Crane-offshore(N) DRILL(N) E0 POSMOOR Non-self-propelled HELDK (S, H, N) DAT (-40) Ice(L) PC(5) Winterized(Polar, -45°C) BIS BWM(T) Clean(Design).

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