Statoil and its partners submitted the plan for development and operation (PDO) of the North Sea Oseberg Vestflanken 2 to the authorities on December 18, 2015. The development will provide in excess of 100 million barrels of oil equivalent.
Statoil and its licence partners have decided to develop the Oseberg Vestflanken 2 covering the Alpha, Gamma and Kappa oil and gas structures. They are located around eight kilometres northwest of the Oseberg field centre.
The Oseberg Vestflanken development will consist of an unmanned wellhead platform with 10 well slots. The wells will be remote-controlled from the Oseberg field centre. Two existing subsea wells will also be reused.
Wellhead platforms with no facilities, helicopter deck or lifeboats represent a new solution in Norway, but it has been thoroughly tested in other areas, such as the Danish and Dutch continental shelves.
Statoil has focused on cutting investment costs throughout the project planning phase, and has now reduced total investment costs by around NOK 1 billion following the concept selection earlier this year. Maturing of the resource base, leading to higher volumes, has also helped realise the project.
Oseberg Vestflanken 2 is an important element in further developing the Oseberg infrastructure for the future, and is a result of long-term licence decisions and uniform area development.
The well stream will be routed to Oseberg field centre via a new pipeline. Production start is scheduled for the second quarter of 2018.
Oseberg Vestflanken 2 is the first of three planned phases for developing the remaining reserves in the Oseberg area.
The licensees are: Statoil (operator) (49.3%), Petoro (33.6%), Total (14.7%) and ConocoPhillips (2.4%).