Storage through CO2-EOR
Download the IEA publication Storing CO2 through Enhanced Oil Recovery
Injecting CO2 into oil reservoirs to enhance oil production has been practiced on a commercial scale for more than 40 years. Over the lifetime of an CO2-EOR operation, virtually all of the CO2 that is injected remains contained in the oil reservoir. Because of this feature CO2-EOR allows reaping the economic benefits of enhancing oil production while reducing anthropogenic CO2 emissions to the atmosphere. Even though the technology could be deployed globally, there are currently hardly any CO2-EOR projects outside of the United States. The majority of the US projects were established during the 1970s for the purpose of bolstering domestic oil production.
Current IEA work examines the role CO2-based enhanced oil recovery could play within efforts to reduce emissions to the atmosphere through capture and long-term geologic storage of CO2. The role of CO2–EOR to serve the dual purpose of enhancing oil recovery and maximising CO2 storage is explored on the basis of different assumptions underpinning the operation of CO2-EOR projects. Not only conventional business-as-usual CO2-EOR practices but also novel practices that aim to co-optimise oil revenue and storage are part of the analysis. The IEA works to provide answers to the following questions:
- What is the technical and economic potential of CO2-EOR to enhance oil production and provide for CO2 storage?
- What are the barriers that need to be overcome and which policy options are available to promote CO2-EOR as a storage option?
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- Carbon Capture and Storage: Legal and Regulatory Review
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- Carbon Capture and Storage:The solution for deep emissions reductions
- 7th CCS Regulatory Network Meeting 2015
- Storing CO2 through Enhanced Oil Recovery
- CCS 2014 - What Lies in Store for CCS?
- Technology Roadmap: Carbon Capture and Storage 2013