Monitoring of Fluid-Rock Interaction and CO sub(2) Storage Through Produced Fluid Sampling at the Weyburn CO sub(2)-Injection Enhanced Oil Recovery Site, Saskatchewan, Canada

• Published in: Applied geochemistry Vol. 20; no. 6; p. 1131
• Main Authors: Emberley, S, Hutcheon, I, Shevalier, M, Durocher, K, Mayer, B, Gunter, W D, Perkins, E H
• Format: Journal Article
• Language: English
• Published: 01.06.2005
• Subjects: Canada, Saskatchewan
• ISSN: 0883-2927
• DOI: 10.1016/j.apgeochem.2005.02.007

An introductory overview is presented of the Weyburn Oil Field, a carbonate reservoir located in south-central Saskatchewan, Canada. This field is the site of a large carbon dioxide injection project, which was originally implemented to promote enhanced oil recovery. Since these operations were initiated in the year 2000, scientists have also been monitoring the project as a good opportunity to evaluate the potential for geological storage of CO sub(2). The study considered 43 baseline samples collected in August 2000, prior to initiation of CO sub(2) injection at Weyburn, and 44 monitoring samples collected in March of 2001. Data from analyses of these samples were used to assess changes in fluid chemistry and isotope composition at the site following initiation of CO sub(2) injection.