WEYBURN-MIDALE CO2 STORAGE & MONITORING PROJECT
SaskPower was a sponsoring partner in the IEAGHG Weyburn-Midale CO2 Monitoring and Storage Project for more than ten years.
This research program, which began in 2000 and was completed in 2012, sought to measure, monitor and verify the CO2 being injected into two depleted oil reservoirs in southeastern Saskatchewan. Cenovus Energy (at the initial time of injection PanCanadian and later EnCana) began injecting CO2 into the Weyburn Reservoir in 2000 to enhance oil production, and Apache Canada began injecting into the Midale Reservoir in 2005.
Both operations have ensured that the injected CO2 has been kept in place; any recycled amounts that come up with the oil are re-injected along with the 8000 tonnes of new CO2 that arrive daily from the Dakota Gasification Company’s coal gasification plant in North Dakota.
Since 2000, some 22 million tonnes of CO2 have been successfully stored underground in these two reservoirs; the research program has successfully demonstrated that the CO2 remains safely underground, and in 2012 provided a publicly available Best Practices Manual to assist other jurisdictions and companies thinking of storing CO2 in similar formations.
Specific data remain confidential to paid sponsors of the Weyburn-Midale Project; however two books are available for scientists and the general public. The first highlights the initial four years of research (2000-2004) and the second is titled Best Practices for Validating CO2 Geological Storage: Observations and Guidance from the IEAGHG Weyburn-Midale CO2 Monitoring and Storage Project. This book examines crucial topics related to CO2 storage including site characterization, measurement, geomechanical and geophysical monitoring, risk assessment, wellbore integrity, and public outreach and communication
The Expert Panel on Harnessing Science and Technology to Understand
the Environmental Impacts of Shale Gas Extraction