Unmanned minimum-facility platforms are a cost-effective alternative to subsea production systems. Statoil contracted Ramboll to carry out a study on an unmanned wellhead platform (UWP) for their Oseberg field.
The current jacket platform in the Tor field in the Norwegian North Sea is expiring, but there are reserves still to be produced. The operator had developed a platform concept base case, and Total awarded Ramboll a platform concept study for the Tor field. The main purpose of the study was to evaluate an alternative concept based on a lower reservoir potential.
ConocoPhillips awarded Ramboll a conceptual design study update for an unmanned stand-alone minimum-facility wellhead platform in the Greater Ekofisk Area.
As part of the Tyra field development in the Danish North Sea, operator, Maersk Oil, contracted Ramboll to assist with a number of engineering services for the design of the Tyra South East A platform. Tyra South East A came on stream in 2002.
BHP Billiton were extending their activities in the Gulf of Mexico, West Cameron area, a with an unmanned wellhead platform. Ramboll was awarded the design of this minimum-facility platform.
As part of the development of the Valhall field, BP commissioned Ramboll and alliance partners Heerema Tønsberg and IV Oil & Gas to engineer, construct and install two unmanned wellhead platforms at Valhall Flank.