Abstract
The CO2BRIM project pursues a combined technical-social sciences approach for investigating participatory modelling applied to different stages of a characterisation of potential CO2 storage formations. From the technical point of view, the project deals with two topics: The first one is concerned with an early stage site screening, where the Gravitational Number (Gr) is used as an indicator for storage efficiency dependent on the conditions found in German Middle Buntsandstein rock units. The second topic addresses the problem of large-scale salt water displacement due to the injection of CO2. Both topics are accompanied by a method called Participatory Modelling, where third parties, i.e. stakeholders with different background, are involved into the modelling process. This report gives some details about the methodological aspects of participatory modelling for the two technical topics and discusses the results for the Gr-characterisation in detail; first results and preliminary discussions from work on large-scale brine displacement are added at the end.
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