Co-optimization of Enhanced Oil Recovery and Carbon Sequestration
In this paper, we present what is to our knowledge the first theoretical economic analysis of CO2- enhanced oil recovery (EOR). This technique, which has been used successfully in a number of oil plays (notably in West Texas, Wyoming, and Saskatchewan), entails injection of CO2 into mature oil fields in a manner that reduces the oil's viscosity, thereby enhancing the rate of extraction. As part of this process, significant quantities of CO2 remain sequestered in the reservoir. If CO2 emissions are regulated, oil producers using EOR should therefore be able to earn sequestration credits in addition to oil revenues. We develop a theoretical framework that analyzes the dynamic co-optimization of oil extraction and CO2 sequestration, through the producer's choice at each point in time of an optimal CO2 fraction in the injection stream (the control variable). We find that the optimal fraction is likely to decline monotonically over time, and reach zero before the optimal termination time. Numerical simulations, based on an ongoing EOR project in Wyoming, confirm this result. They show also that cumulative sequestration is positively related to the oil price, and is in fact much more responsive to oil-price increases than to increases in the carbon tax. Only at very high taxes does a tradeoff between oil output and sequestration arise.
|Date of creation:||Jun 2009|
|Date of revision:|
|Publication status:||published as Leach, Andrew & Mason, Charles F. & Veld, Klaas van ât, 2011. "Co-optimization of enhanced oil recovery and carbon sequestration," Resource and Energy Economics, Elsevier, vol. 33(4), pages 893-912.|
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- Robert D. Cairns and Graham A. Davis, 2001. "Adelman's Rule and the Petroleum Firm," The Energy Journal, International Association for Energy Economics, vol. 0(Number 3), pages 31-54.
- Davis, Graham A & Cairns, Robert D, 1999. "Valuing Petroleum Reserves Using Current Net Price," Economic Inquiry, Western Economic Association International, vol. 37(2), pages 295-311, April.
- de Coninck, Heleen, 2008. "Trojan horse or horn of plenty? Reflections on allowing CCS in the CDM," Energy Policy, Elsevier, vol. 36(3), pages 929-936, March.
- Adelman, M A, 1990. "Mineral Depletion, with Special Reference to Petroleum," The Review of Economics and Statistics, MIT Press, vol. 72(1), pages 1-10, February.
- Dermot Gately & Hiliard G. Huntington, 2002. "The Asymmetric Effects of Changes in Price and Income on Energy and Oil Demand," The Energy Journal, International Association for Energy Economics, vol. 0(Number 1), pages 19-55.
- Thompson, Andrew C., 2001. "The Hotelling Principle, backwardation of futures prices and the values of developed petroleum reserves -- the production constraint hypothesis," Resource and Energy Economics, Elsevier, vol. 23(2), pages 133-156, April.
- Dermot Gately, 2004. "OPEC's Incentives for Faster Output Growth," The Energy Journal, International Association for Energy Economics, vol. 0(Number 2), pages 75-96.
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