Sealing rock characteristics under the influence of CO2

To ensure the long-term safety of geological CO2 storage sites, such as saline aquifers or depleted gas- and oilfields, the overburden must be able to effectively retain in place the CO2 (either gaseous, supercritical or in dissolved state). In this study the caprock sealing efficiency and potential petrophysical and mineralogical changes of caprock integrity due to CO2 exposure are being investigated. Analysis techniques include XRD for...