INEOS Energy, Wintershall Dea, and a consortium of 29 companies, research institutes and univer-sities signed an agreement to support the next phase of the Greensand pilot project to demon-strate the safe and permanent storage of CO2 in the Danish North Sea, INEOS said in an Aug. 17 statement.
The Greensand consortium will now file a grant application with the Energy Technology Develop-ment and Demonstration Program in Denmark. If the application is successful, the consortium plans to begin work by yearend, with the offshore injection pilot expected in late 2022. The consortium will demonstrate that CO2 can be injected into the offshore Nini West reservoir in a cost-effective and environmentally safe manner, Wintershall Dea said in a separate statement Aug. 17.
Emissions will be captured at the Danish cement producer, Aalborg Portland, and transported to the Nini West reservoir by ship, it continued.
A full-scale project final investment decision could come after proof of concept, in second-half 2023, with storage in Nini West field by 2025, subject to funding and regulatory conditions.
The reservoir lies in the Siri area where Paleocene sandstone fields lie at a depth of 1.5-2.2 km and are encased “in one of the most competent cap rocks in the North Sea,” INEOS said.
Overall, the area is expected to hold storage potential of 0.5-1 million tonnes/year (tpy) of CO2 by 2025, increasing to a potential 4-8 million tpy of CO2 by 2030, Wintershall said.
