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CLIMIT-Forskning, utvikling og demo av CO2-håndtering

Subsurface storage of CO2 - Risk assessment, monitoring and remediation (SSC - Ramore)

Tildelt: kr 21,7 mill.

Large scale underground storage of CO2 off the coast of Norway is internationally pioneering and stimulates for further development of international leading expertise in the area, expertise which in turn will represent a sound fundamental basis for large scale in situ CO2 reservoir storage experiment. This project aims at establishing technology for risk assessment, monitoring and remediation of carbon dioxide subsurface storage, based on a concentrated research effort to fill critical gaps of knowledge i dentified in this field. Our focus is to study the geochemical interaction of CO2 with cap-rocks as well as engineered material in wells, and corresponding changes in geomechanical properties. This is a prerequisite for any evaluation of potential CO2 l eakage from the subsurface aquifer/reservoir. An extensive experimental test program is planned to study long-term seal integrity and the effect of fluid transport in fractures. A wide range of standard geotechnical tests as well as new constructions and procedures for the CO2 interaction/penetration will be applied. The corresponding geochemical reactions will be traced in the same experiments and in other specificly designed. Complementary theoretical treatment on interfaces is crucial to estimate solid /fluid properties and not least interfacial properties and corresponding penetration pressure for water/CO2 fluid interfaces. Stability and possible extra sealing effects of hydrates in contact with clays in cap-rocks will also be evaluated. Coupled geo chemical - geomechanical models will be implemented into reservoir modeling software, and the projects will give recommendations for material testing procedures, monitoring and remediation techniques.

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CLIMIT-Forskning, utvikling og demo av CO2-håndtering