Carbon storage: caught between a rock and climate change
Royal Society TV presents: Professor Herbert Huppert lecture on Carbon Storage technology.
This technology may combat the rise in greenhouse gases by storing CO2 in vast porous geological formations. For the last fifteen years there has been considerable effort devoted to storing some of the millions of tons of CO2 resulting from the burning of fossil fuels which otherwise would have been emitted into the atmosphere.
- Gravity and larger permeability act in opposition
- Anisotropic heterogeneous permeability
- Chemical Reactions with hot rock
- Convection thermal and/or volatile/dissolution driven)
- Possible dissolution leading to changes in viscosity and density
- Fluid mechanics can help quantitatively in the interpretation of carbon dioxide injection and spreading
- Simple models for flow in one layer describe aspects of the evolution at Sleipner (oldest storage site)
- Convective dissolution of carbon dioxide into the surrounding brine can be quantified
- Leakage through a fracture can be substantial
Economics of capturing carbon is not part of the lecture.