Johan Sverdrup oil field

Johan Sverdrup oil field is a major petroleum discovery located in the North Sea, approximately 140 kilometers west of Stavanger, Norway. Situated on the Utsira High, it is one of the largest oil fields on the Norwegian continental shelf and a cornerstone of Norway's petroleum industry. Operated by Equinor, the field is renowned for its high production volumes, low operating costs, and extensive use of renewable energy for its operations.

Overview

The field is named after Johan Sverdrup, a prominent 19th-century Norwegian politician and prime minister. It is developed in multiple phases, with the first oil achieved in October 2019. The development concept centers on four large offshore installations—a process platform, a riser platform, a drilling platform, and a living quarters platform—all interconnected by bridges. The entire complex is powered by electricity from shore, significantly reducing its carbon footprint compared to traditional offshore developments. Key partners in the licensing and operation include Aker BP, Petoro, and TotalEnergies.

Discovery and development

The discovery was made in 2010 by Lundin Petroleum (now part of Aker BP) through the exploration well 16/2-6, which encountered a significant Jurassic sandstone reservoir. Following appraisal drilling, the Norwegian Petroleum Directorate confirmed a substantial find, leading to a rapid and large-scale development plan. The Norwegian Ministry of Petroleum and Energy approved the Plan for Development and Operation (PDO) for Phase 1 in 2015. Phase 2, sanctioned in 2019, involved the addition of another processing platform and further subsea installations to boost capacity. The project was executed under the management of Equinor with major contracts awarded to suppliers like Aker Solutions, Kvaerner, and Siemens.

Geology and reserves

The reservoir is located in the Utsira High area, a structural high within the North Sea basin. The primary reservoir rocks are sandstones of the Draupne Formation and the underlying Hugin Formation, deposited during the Late Jurassic period. These formations are characterized by excellent porosity and permeability, facilitating high flow rates. Original recoverable reserves are estimated at approximately 2.7 billion barrels of oil equivalent. The field also contains associated gas, which is transported via the Statpipe pipeline system to Kårstø for processing and export.

Production and technology

Production from the first phase began in 2019, with Phase 2 coming on stream in December 2022. At plateau, the field can produce up to 755,000 barrels of oil per day, making it a significant contributor to Norwegian output. The oil is transported to the Mongstad terminal in Hordaland via the Mongstad oil pipeline, while gas is sent to the Sleipner field for processing. A defining technological feature is its full electrification from shore, with power supplied via cables from the Mongstad power plant and later supplemented by the Utsira High power-from-shore project, involving new cables from Haugalandet. The development utilizes advanced subsea technology and digital twin systems for optimized operations.

Economic and environmental impact

The field is a major economic asset for Norway, expected to generate substantial revenues for the state and the companies involved over its 50-year projected lifespan. It has a break-even price among the lowest on the Norwegian continental shelf, ensuring profitability. Environmentally, its shore-based power supply avoids annual emissions of hundreds of thousands of tonnes of CO2 and NOx that would result from traditional gas turbine power. The field's development and operation adhere to strict regulations set by the Norwegian Petroleum Directorate and the Ministry of Climate and Environment, aiming to align with Norway's climate goals. Its success influences broader industry trends towards electrification and low-carbon extraction.

Category:Oil fields in Norway Category:North Sea oil fields