ABSTRACT
This chapter explains one of the very few examples of certain kind that aims to history match a reservoir simulation model of Carbon dioxide (CO2) injection in Citronelle Dome. The available field data for history matching comprises ten months of CO2 injection rates as well as pressure data coming from two gauges installed in the observation well. Calculations of the storage capacity require estimations of total affected space which represents the whole region that is impacted by the CO2 injection. The void space required to store injected CO2 is created by compressing the fluids in the formation and, as a result, increasing the reservoir pressure. The storage efficiency factor is another parameter in storage capacity calculations and can be determined in a manner similar to an "original oil in place" calculation. The "available space" that is covered by sealing with the cap-rock includes the total pore space for CO2 storage.
