Greensand project – transport and offshore storage of CO2 in Denmark – status, outlook and challenges

Søren Reinhold Poulsen1

1INEOS Energy Denmark, Teknikerbyen 5, 2830 Virum, Denmark

1Department of Mathematical Modelling, Faculty of Mathematics and Natural Sciences, Kaunas University of Technology, Kaunas, Lithuania

Baltic Carbon Forum, Vol. 1, 2022, p. 8-8.
Accepted 17 August 2022; published 13 October 2022

Baltic Carbon Forum 2022 in Kaunas, Lithuania, October 13-14, 2022

Copyright © 2022 Søren Reinhold Poulsen. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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The Greensand project includes, beside from safe and efficient geological offshore CO2 storage, offshore transport by ship and/or pipeline of CO2 from key side onshore facilities established to capture, liquefy, onshore transport and temporarily store the CO2 before offloading to storage site. The Greensand project builds on the usage of the offshore Siri complex sandstone reservoirs no longer in use for oil and gas production. The storage sites, offloading and injection systems and transportation means are currently being technically matured. The target is to be able to offer customers safe and reliable transport and storage services from the start of 2026. Currently meanwhile maturing a technical concept, commercial and regulatory activities are ongoing in parallel. The Greensand partners INEOS Energy and Wintershall Dea have also decided to perform an offshore pilot test of injecting liquified CO2 into a particular reservoir serving as candidate for future long terms storage of CO2. Along the pilot testing offshore project, material testing and deployment of monitoring techniques are being matured. The Pilot testing offshore planned to take place late 2022 with a 3-months duration.

Keywords: CO2 storage, pilot testing, ship transport, capacity of up to 8 MTPA, aquifers, oil reservoirs, Denmark, Offshore.

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