A decade of CO2 injection into depleting oil fields: Monitoring and research activities of the IEA GHG Weyburn-Midale CO2 Monitoring and Storage Project

作者：Steve Whittaker, Benjamin J. Rostron, Chris Hawkes, Craig Gardner, Don White, James W. Johnson, Rick Chalaturnyk, D. Seeburger · 发表于：Energy Procedia · 年份：2011 · DOI：10.1016/j.egypro.2011.02.612 · 被引用次数：123 · 研究领域：CO2 Sequestration and Geologic Interactions、Hydrocarbon exploration and reservoir analysis、Reservoir Engineering and Simulation Methods

Injection of CO2 into the Weyburn Oil Field, Saskatchewan, Canada, began October 2000 and 10 years later approximately 18 MT of CO2 will have been stored in the geological reservoir. The CO2 injection is part of an ongoing enhanced oil recovery effort that will extend to 2035 and likely beyond. Both Weyburn and the adjacent Midale oil field are highly suitable for CO2-EOR and it is expected that, combined, more than 40 MT CO2 will eventually be stored in these carbonate reservoirs. Currently about 2.4 MT and 0.4 MT CO2/year are being stored in the Weyburn and Midale fields, respectively, which now represent the largest site of monitored geological storage of CO2 globally. The Weyburn Field is operated by Cenovus Energy and the Midale Field by Apache Canada. The anthropogenic CO2 used at Weyburn-Midale is a by-product of coal gasification at the Great Plains Synfuels Plant in North Dakota, USA. The compressed CO2 is delivered to the oil fields through a 323 km pipeline that crosses the international boundary. The IEA GHG Weyburn-Midale CO2 Monitoring and Storage Project was established prior to the onset of CO2 injection at Weyburn to assess monitoring methods and subsurface processes associated with the injection of CO2 into geological storage sites. This research program is now in its second phase of research. Baseline 3D seismic surveys were performed over the Weyburn Field before injection and subsequent repeat 3D seismic surveys have been taken during the course of inject...