Det Norske has won approval for use of the Safe Zephyrus at the Ivar Aasen field in the North Sea.
The company received consent from the Norwegian Petroleum Safety Authority (PSA).
The field has been developed using a production, drilling and accommodation facility on a steel jacket and a jack-up facility for well drilling and completion.
Production from Ivar Aasen is expected to begin in the fourth quarter of this year.
The flotel will be used to accommodate personnel during the completion and start-up phase.
The consent applies until February next year.