Nippon Kokan To Build Semi-Submersible Rig For Norwegian Firm

Nippon Kokan (NKK), Tokyo, Japan, is building an "Ultra Yatzy" semi-submersible offshore drilling rig for the Norwegian Dyvi Group.

The construction is expected to be completed in May 1986.

The "Ultra Yatzy" will have a maximum deck load capacity of 4,500 tons and a maximum drilling depth of 2,300 feet. It will be able to operate in severe deep-sea conditions.

The semi-submersible offshore rig is larger than the original Yatzytype, for which NKK concluded a technical license agreement in 1983 with Dyvi Engineering A/S. The new contract is covered by a "spot" license.

The rig, which will be operated in the North Sea, will be owned by an international consortium formed by the Dyvi Group and several other firms with actual operation managed by Dyvi Offshore A/S.

The main deck area of the rig will be 66 meters (216.5 feet) by 70 meters (229.6 feet). The living quarters will accommodate 90.

Maritime Reporter Magazine, page 85,  Nov 1985

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Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.