Presenter: Tore I. Bjørnarå, NGI
This is crucial for CO2 risk assessment in faulted reservoirs. One of the main challenges is to define the hydraulic properties of a fault. Here we apply well-known conceptual models for hydraulic fault characterisation, including shale gouge ratio (SGR) and clay-smear methods. The modelling approach is illustrated through generic examples.
Through a case study, using input parameter from the Vette Fault and surrounding formations, we determine leakage rates for various fault scenarios from the Smeaheia CO2 storage unit and upwards in the overburden.
