There is high uncertainty associated with assessing the sealing properties of faults. Although the industry has a lot of experience in evaluating faults, there is a need to look at new methods for calculating how fault properties such as permeability and stability are affected when CO2 is injected into a reservoir. The research activities in FRISK will be linked to the storage prospects that are being developed on the Horda Platform in the North Sea and will focus on developing new methods for calculating how fluid migrates within faults. The work will form the basis for identifying uncertainties associated with faults and contribute to qualification of faulted reservoirs as safe CO2 storage sites.
The main objective in FRISK is to reduce the uncertainty in fault related leakage risk for large-scale CO2 storage by developing an improved fault derisking framework that includes dynamic pressure changes and along-fault fluid migration. The main objective will be addressed by answering to the four secondary objectives:
- Characterize and quantify fault complexity based on seismic interpretation and fault imaging in 3D seismic from Smeaheia
- Improved interpretation of existing experimental data, targeting post-failure flow behaviour and stress-dependent flow properties
- Develop effective fault flow models for use in reservoir simulation tools using fine-scale simulations
- Characterize fault-related leakage rates and quantify uncertainty in key controlling parameters
More information about separate work packages in the project will become available (link above - Sub-projects).
