Abstract
Geological storage of CO2 by subsurface injection into porous rocks in deep saline aquifers is one of the options to reduce CO2 emissions. Several projects concerning estimation of geological storage of CO2 in Europe has revealed a considerable storage potential, latest the EU GeoCapacity project estimated a total storage capacity of ~360Gt for Europe. Compared to the estimate of 2Gt for the annual CO2 emission from large stationary CO2 sources, sufficient capacity seems to be available. The combination of certain point sources with storage facilities might even obtain negative emission budget, when power plants with significant biomass fuelling are incorporated.
Analyses demonstrate that geological storage of CO2 is a realistic option in the majority of the European countries, with the largest storage potential concentrated in the North Sea region. Widespread geological formations and structures with CO2 storage potential are found in Norway, United Kingdom and Denmark. In Denmark the subsurface is relatively well known from a large number of exploration wells and various seismic surveys, and the existence of both reservoir layers and sealing units with large areal
extension is verified. In addition the occurrence of geological structures with closure makes it very likely that several suitable CO2 storage sites can be identified, both on- and offshore. The Skagerrak area seems promising as several structures with reservoir rocks are documented with overlying sealing cap rock sections. The Kattegat area may also have potential structures due to block faulting. The combination of burial depth and reservoir properties makes the Triassic – Jurassic Gassum Formation the most attractive storage layer option. The thickness of the Lower Triassic Bunter Sandstone/Skagerrak
Formations provides huge storage volumes although probably with low injectivity. Locally the lower Triassic formations may form excellent reservoirs, for example in the Copenhagen-Malmö area.
Analyses demonstrate that geological storage of CO2 is a realistic option in the majority of the European countries, with the largest storage potential concentrated in the North Sea region. Widespread geological formations and structures with CO2 storage potential are found in Norway, United Kingdom and Denmark. In Denmark the subsurface is relatively well known from a large number of exploration wells and various seismic surveys, and the existence of both reservoir layers and sealing units with large areal
extension is verified. In addition the occurrence of geological structures with closure makes it very likely that several suitable CO2 storage sites can be identified, both on- and offshore. The Skagerrak area seems promising as several structures with reservoir rocks are documented with overlying sealing cap rock sections. The Kattegat area may also have potential structures due to block faulting. The combination of burial depth and reservoir properties makes the Triassic – Jurassic Gassum Formation the most attractive storage layer option. The thickness of the Lower Triassic Bunter Sandstone/Skagerrak
Formations provides huge storage volumes although probably with low injectivity. Locally the lower Triassic formations may form excellent reservoirs, for example in the Copenhagen-Malmö area.
| Original language | English |
|---|---|
| Title of host publication | Energy systems and technologies for the coming century |
| Subtitle of host publication | Proceedings. Risø International Energy Conference 2011 |
| Editors | Leif Sønderberg Petersen, Hans Larsen |
| Publisher | Danmark Tekniske Universitet |
| Pages | 48-55 |
| Number of pages | 8 |
| ISBN (Electronic) | 978-87-550-3903-2 |
| Publication status | Published - May 2011 |
| Event | Risø International Energy Conference 2011 - Risø, Danmark Duration: 10 May 2011 → 12 May 2011 |
Conference
| Conference | Risø International Energy Conference 2011 |
|---|---|
| City | Risø, Danmark |
| Period | 10/05/11 → 12/05/11 |
Programme Area
- Programme Area 3: Energy Resources