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CO2 storage atlas: Norwegian Sea
CO2 storage atlas: Norwegian Sea

5th February 2013

Organisation(s): Norwegian Petroleum Directorate (NPD)

Topic(s): Carbon capture, CO2 storage, Use and storage (CCUS)

The Norwegian Sea may be able to store 5.5 gigatonnes of carbon dioxide (CO2). This is more than 100 times Norway’s total CO2 discharge in 2012. The CO2 storage atlas of the Norwegian Sea has been prepared by the Norwegian Petroleum Directorate, at the request of the Ministry of Petroleum and Energy. The studied areas are in opened parts of the Norwegian continental shelf (NCS). The main objectives have been to identify the safe and effective areas for long-term storage of CO2 and to avoid possible negative interference with ongoing and future petroleum activity. This study is based on detailed work on all relevant geological formations and hydrocarbon fields in the Norwegian Sea. The work is based on several studies as well as data from more than 40 years of petroleum activity on the Norwegian continental shelf. A new geological study of the coastal-near aquifers in the Norwegian Sea, is included. A study of the CO2 storage potential in relevant dry-drilled structures and mapped structures in the area is provided, together with a summary of the CO2 storage potential in oil and gas fields. CO2 storage in enhanced oil recovery projects is also discussed. The methodology applied for estimating storage capacity is based on previous assessments, but the storage efficiency factor has been assessed individually for each aquifer based on simplified reservoir simulation cases. The assessed aquifers have been ranked according to guidelines developed for the CO2 storage atlas of the Norwegian part of the North Sea (2011).

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