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Enhanced CO2 Storage as a Result of CO2-Water-Silicate Mineral Reactions; Evidence from Produced Fluid Geochemistry and Geochemical Modeling at the IEA Weyburn Project
| Content Provider | Semantic Scholar |
|---|---|
| Author | Raistrick, Mark Hutcheon, Ian D. Shevalier, Maurice Thomas Mayer, Bernhard |
| Copyright Year | 2008 |
| Abstract | Summary Geological CO2 storage with or without the added benefit of CO2 EOR provides a means of reducing CO2 emissions to the atmosphere. To confirm the efficiency of storage and obtain credit for avoided CO2 emissions a range of monitoring data needs to be collected and interpreted. Chemical data collected over four years of produced fluid monitoring at Weyburn suggest that alteration of Kfeldspar has buffered the pH decrease resulting from CO2 injection, enhancing aqueous CO2 storage and possibly leading to mineral storage of CO2 as CaCO3. Using geochemical modeling software, reaction path simulations over 100s of years, calibrated via history matching over the first few years, show that reaction of K-feldspar and other silicate minerals present in the Weyburn oilfield reservoir will lead to further storage of injected CO2 in the aqueous phase and as carbonate minerals. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://cseg.ca/assets/files/resources/abstracts/2008/203.pdf |
| Alternate Webpage(s) | http://www.searchanddiscovery.com/abstracts/pdf/2013/90170cspg/abstracts/ndx_rais.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
