Integrated Modeling and Simulation for CO2 EOR and CO2 Storage in the Zama Pinnacle Reefs of the Alberta Basin, Canada
The Zama oil field in northwestern Alberta, Canada, has been the site of acid gas injection(70% carbon dioxide [CO2] and 30% hydrogen sulfide [H2S]) for the purpose of enhancedoil recovery (EOR) and CO2 storage since 2006. Oil and gas are produced from Devonianagedpinnacle reefs encountered at an average depth of 1500 m and are typically 16 Ha attheir base and 120 m tall. More than 700 of these reefs have been discovered within theKeg River Formation that have been sealed into closed reservoirs by tight anhydrites ofthe Muskeg Formation. Because of the size of each structure, the number of penetrationsand portfolio of characterization data tend to be limited. The pinnacle reef reservoir withthe most associated data, the Zama F Pool, was selected for detailed modeling activities.The Energy & Environmental Research Center, through its Plains CO2 Reduction (PCOR)Partnership, is working with Apache Canada Ltd. to validate the amount of CO2 storedduring the ongoing EOR operations in the Zama F Pool. This study provided detailed staticgeologic modeling and dynamic reservoir simulation to evaluate future EOR potential and CO2 storage capacity as well as the long-term fate in this closed system.Predictive simulations explored the possibility of additional storage capacity gain bypressure management through water extraction from below the oilwater contactand oView/Download Document
Event/Meeting Information
2014 SEG/SPE/AAPG/SPWLA/EAGE Summer Research Workshop
8/3/2014
San Diego, CA