CO2 Enhanced Oil Recovery Case Study

Challenges

Reduce uncertainty in reservoir connectivity.
Fluid and pressure distribution in dynamic models unverified with 4D seismic.
Integrate seismic quantitative interpretation with the production engineering workflow

Objectives

Montana Cretaceous Muddy Fm in the USA, sand reservoir undergoing CO2 injection
Collaboration with the EERC on the use of time-lapse seismic monitoring, and facies-based seismic inversion for monitoring the injected CO2

Solutions

Highly heterogeneous reservoir mapped to lithological and litho-fluid facies.
Improved certainty of CO2 and pressure distribution in the reservoir.
Integration of inversion results with reservoir simulation to improve static and dynamic reservoir models.