Acid gas injection and monitoring at the Zama oil field in Alberta, Canada: A case study in demonstration-scale carbon dioxide sequestration

Abstract

The field validation test, conducted in the Zama oil field of northwestern Alberta, Canada, will evaluate the potential for geological sequestration of CO2 as part of a gas stream that includes high concentrations of H2S (20% to 40%). The results of this project will provide insight regarding the impact of H2S, in conjunction with CO2, on sink integrity (i.e., seal degradation); monitoring, mitigation, and verification techniques; and enhanced oil recovery success within a carbonate reservoir. Monitoring activities are focused on the near-pinnacle environment, including cap rock integrity, wellbore leakage, and spillpoint breach.