3D Field-Scale Geomechanical Modeling of Potential CO2 Storage Site Smeaheia, Offshore Norway

Injection-induced rock mechanical failure risks are critical in CO2 sequestration, and thus there is a need to evaluate these occurrences ensure safe reliable subsurface storage. A stress–strain-based numerical simulation can reveal the potential of any sites. This study investigated hydromechanical effect on geomechanical due injection-induced stress pore pressure changes prospective storage site Smeaheia, offshore Norway. An inverted-seismic-property-driven 3D field-scale model was carried out Smeaheia area deformation various pressure-build-up scenarios. one-way coupling between before- after-injection scenarios nine different models has been iterated using finite element method. The sensitivity total volume compressibility also evaluated. Although illustrated comparative variability potential, no predicted caprock or fracture based Mohr–Coulomb envelope. Moreover, lateral variation among locations indicated possibility identify safer injection point with less chances leakage. In addition, significantly influence behavior reservoir rocks. this analysis could predict better behavior, fluid needs be simulated for assessing vertical plume migration before making an decision.