Monitoring technology ranking methodology for CO2-EOR sites using the Weyburn-Midale Field as a case study

摘要

In a carbon dioxide (CO2) enhanced oil recovery (EOR) operation, CO2 is injected into a hydrocarbon reservoir to enhance hydrocarbon production. Much of this CO2 is recycled for reinjection when the hydrocarbons are produced; however, a large amount is permanently stored in the reservoir. If a CO2-EOR operation intends to claim CO2 storage credit for this stored CO2, it needs to demonstrate that the CO2 is safely stored in the subsurface by strategically deploying monitoring technologies. For the operation to maintain profitability goals, these monitoring technologies also need to be cost-effective. If the safety of the CO2 storage is demonstrated, the project will be classified a carbon capture, utilization, and storage (CCUS) project.