Statoil has awarded Sevan Marine a study of the potential application of a Sevan FPSO for Statoil’s Skrugard / Havis development in the Norwegian Barents Sea. This field is located approximately 200 kilometers from IngÃ¸ya in MÃ¥sÃ¸y municipality in Finnmark in approximately 300 meters of water.
In a conversation with Sevan Marine CEO Carl Lieungh this morning, he reiterated that this announcement marks the start of a study and few details have yet been sorted out, although this vessel’s capacity will be at or above 1 million barrels, which is somewhat larger than the Goliat FPSO currently under development in the Barents Sea.
“We will be looking at power generation options as well. The Goliat FPSO, which is currently under development nearby, will be partially powered via land. We will be looking at using produced gas to power four or possibly five GE LM2500 gas turbine electrical generators, which equates to around 80-100MW of power.”
“The production riser configuration will also be of a standard flexible-type” he mentioned.
The study will be performed in the period from April 2012 to May 2013 and will be focused on further development of the Sevan FPSO as basis for future preferred concept.
The Sevan design developed for offshore installations meets the oil and gas industry’s long standing challenge for versatility, flexibility, and fast deployment. The Sevan design has proved to be an efficient basis for Floating Production, Storage and Offloading (FPSO) units as well as for deep water Mobile Offshore Drilling Units (MODU). The three Sevan FPSO’s currently installed at their respective locations; FPSO Sevan Piranema in Brazil, and FPSO Sevan Hummingbird and FPSO Sevan Voyageur in the North Sea, have demonstrated to meet these challenges and provide confidence that the Sevan technology will continue to perform successfully also on future developments.
The main components of the Sevan FPSO’s and MODU are the cylindrical hull. The FPSOs utilize the hull for cargo storage and segregated ballast tanks as well as for marine and utility systems.
The MODU has mud and drill water storage in the hull as well as cargo and ballast tanks. Pumps and other utility systems related both to the drilling equipment and to the marine systems are located inside the hull. A large moon pool is arranged in the centre of the MODU hull.
The Sevan hull is suitable for operation in water depths ranging from 30m to more than 3,000m and Sevan units may operate in both benign and harsh environments. Model tests have been made for the most extreme North Atlantic conditions as well as for the toughest cyclonic conditions with excellent results.
Main features of the design are:
Circular hull with symmetry of the design
High capacity for oil storage and deck loads
No turret or swivel
Any number of risers may be carried by the FPSOs
Excellent motion characteristics
High safety standards
The symmetry of the design and the simplicity of the structural arrangement make the construction of the hull simple and efficient. No special facilities or infrastructure are required, thus standard shipyard facilities existing worldwide are sufficient to construct Sevan units.
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