Statoil and the partners in the Johan Sverdrup oil field have decided on a concept for development of the field off Norway, for which investment in the first phase is estimated at up to NOK120bn ($19.6bn).
Johan Sverdrup phase 1 development will involve a field centre consisting of four installations and power from shore with a transformer on Kårstø delivering direct current to the riser platform, ensuring an estimated 80MW.
According to Statoil, the development is expected to reduce total CO2 emissions from the Utsira High area by 60%-70%.
The field will be developed in multiple phases and first phase design capacity is said to be 315,000bpd field capacity.
Production from the field is expected to commence at the end of 2019 and will be between 315,000bpd and 380,000bpd in the early phase.
Johan Sverdrup field senior vice-president Øivind Reinertsen said: "The ambition is a recovery rate of 70% for the full field."
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Investments in the first phase, which will facilitate measures for improved oil recovery, include the field centre, wells, export solutions for oil and gas, power supply, contingencies and provisions for market adjustments.
The field centre in the first phase has been designed so as to facilitate future development and comprises a process platform, drilling platform, riser platform and living quarter.
Water depth of the field is approximately 120m in the area and the installations have steel jackets that are linked by bridges.
Alternative power solutions for the future phases will be described as part of the plan for development and operations, scheduled to be delivered in early 2015.
Power from shore to the whole Utsira High area will serve as one of the alternatives, based on updated power requirements.
The oil will be transported through dedicated pipelines to the Mongstad terminal in Hordaland county and gas through Statpipe to Kårstø in Rogaland county for processing and transportation.
Image: Johan Sverdrup oil field on the Norwegian shelf. Photo: courtesy of Statoil.