First storage of CO2 in Denmark's underground a reality

Project Greensand has completed the first underground storage of CO2 in Denmark, paving the way for fulfilling the storage potential in the Danish part of the North Sea.

Challenge

Capture and storage of CO2 will be one of the essential elements in achieving the Danish 2030 reduction target. Large-scale CO2 capture plants for fossil-based CO2 are being prepared, which is why safe storage of CO2 is needed.

Solution

The project will investigate how the Nini field in the North Sea can be used for CO2 storage. The underground soil conditions will be investigated so that the risk of leakage and other risks can be identified and prevented. The project will also demonstrate the cost savings that can be achieved by using former oil and gas fields for storage rather than new excavations. In addition, the project will demonstrate a safe and cost-effective transport of CO2 from the capture site to storage.

Result

The knowledge gathered will be used to achieve the greatest possible capacity of the Nini field in the North Sea and apply that knowledge to comparable empty fields. The potential is that up to 8 million tons of CO2 can be sequestered by 2030, approximately 40% of the target of 70% CO2 reduction by 2030.