Case A - sparse measurablesTwo-dimensional model at lab conditions Pressure in observation pointsMobile CO₂Mobile CO₂ in region AMobile CO₂ in region BDissolved CO₂Dissolved CO₂ in region ADissolved CO₂ in region BImmobile CO₂Immobile CO₂ in region AImmobile CO₂ in region BCO₂ in sealCO₂ in seal in region ACO₂ in seal in region BTotal CO₂ in seal