Технология и свойства пористого гранулированного стеклокристаллического материала из высокодисперсного кремнеземистого сырья

This paper reports on the regional screening, selection and geological characterisation of a potential on-shore CO2 storage site (saline aquifer) in north-eastern Germany. The main objective of this study was to identify and investigate a candidate storage site, capable to accommodate the total amount of approximately 400 million tons of CO2. Such a volume is produced by a modern, lignite-fired power plant within its operation lifetime of approximately 40 years. Within north-eastern Germany, several saline aquifers of Triassic, Jurassic and Cretaceous age have been evaluated with respect to their regional occurrence, storage potential and basic reservoir properties. Subsequent to a ranking, considering different criteria, the anticlinal structure Schweinrich holding suitable saline aquifers of the uppermost Triassic and lowest Jurassic has been selected from a number of identified candidate sites. According to results of the geological site characterisation, including structural geological investigations and 3D reservoir modelling, the structure Schweinrich seems to be a suitable site for industrial large scale CO2 storage. Further data acquisition (new wells and 3D seismics) and research (more detailed and comprehensive modelling) is needed in order to prove the structural integrity of the storage site and assure long-term safety. © 2007 Springer-Verlag

Development of a monitoring plan for the Vedsted structure in Denmark

Vattenfall is considering a Carbon Capture and Storage (CCS) project in the North Jutland region of mainland Denmark. The project would involve the post-combustion capture of CO2 from the Nordjyllandsværket coal fired power plant at Aalborg followed by geological storage of the CO2 in a nearby, onshore, saline aquifer within the Vedsted structure. A thorough monitoring plan is considered to be an essential element of the start-up phase of the project based on risk evaluation. This paper describes the first design of such a monitoring plan that was developed for Vattenfall by a team from CO2GeoNet in discussions involving the company and the Danish Geological Survey (GEUS). The monitoring methodologies to be deployed include downhole tools via a monitoring well, 2D and 3D surface seismic for subsurface imaging of the plume, shallow geophysics for the fresh-saline water interface and surface, atmospheric and remote sensing tools for leakage integrity