CO2 Sequestration1
In response to the climate change issue, CO2 sequestration projects are being pursued in Canada. The largest project is at Weyburn, Saskatchewan, where CO2 is being injected and stored in a reservoir as part of an enhanced oil recovery project. The volume of CO2 to be sequestered makes it one of the largest projects of its kind in the world.
The Weyburn2 field is the largest medium sour oil reservoir in Canada, with over 200 million cubic metres of original oil-in-place. Discovered in 1954, the field has been under waterflood since 1964. The project injects three million cubic metres of CO2 per day from the Great Plains Synfuels plant in North Dakota. An estimated 20 million tonnes of CO2 will be sequestered over the projects lifetime and the fields productive life will be extended by at least 25 years. The injected CO2 is expected to add 21 million cubic metres of medium gravity oil to total production.
Weyburn is also the test site for the first, large-scale geological study of CO2 storage in an oilfield.
