With the release of the DTI's Carbon Abatement Technology Strategy, monitoring and learning from the existing underground carbon dioxide (CO2)storage project at Sleipner in the North Sea becomes even more important.
Natural gas produced at the Sleipner West field naturally contains about 9.5% CO2, which has to be removed to get the gas to saleable quality. Instead of venting the separated CO2 to the atmosphere, where it would add to the greenhouse problem, Statoil, the operators of the field, and their partners decided to inject it down a 3 km-long well and store it in a porous and permeable reservoir rock called the Utsira Sand (Source: BGS).