Abstract
| Language | English |
|---|---|
| Pages | 3149-3155 |
| Number of pages | 7 |
| Journal | Energy Procedia |
| Volume | 1 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 9 Apr 2009 |
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Keywords
- mineral reactions
- CO2 storage
- fluid measurements
- geochemical modeling
- carbon dioxide-water-silicate mineral reactions
- Weyburn
- K-feldspar
- silicate
- monitoring
- ionic trapping
- pH buffer
Cite this
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Carbon dioxide-water-silicate mineral reactions enhance CO2 storage : evidence from produced fluid measurements and geochemical modeling at the IEA Weyburn-Midale project. / Raistrick, Mark; Hutcheon, Ian; Shevalier, Maurice; Nightingale, Michael; Johnson, Gareth; Taylor, Stephen; Mayer, Bernhard; Durocher, Kyle; Perkins, Ernie; Gunter, Bill.
In: Energy Procedia, Vol. 1, No. 1, 09.04.2009, p. 3149-3155.Research output: Contribution to journal › Article
TY - JOUR
T1 - Carbon dioxide-water-silicate mineral reactions enhance CO2 storage
T2 - Energy Procedia
AU - Raistrick, Mark
AU - Hutcheon, Ian
AU - Shevalier, Maurice
AU - Nightingale, Michael
AU - Johnson, Gareth
AU - Taylor, Stephen
AU - Mayer, Bernhard
AU - Durocher, Kyle
AU - Perkins, Ernie
AU - Gunter, Bill
PY - 2009/4/9
Y1 - 2009/4/9
N2 - At the International Energy Agency Greenhouse Gas (IEA GHG) Weyburn-Midale Project in Saskatchewan, Canada, CO2 storage research takes place alongside CO2 enhanced oil recovery (EOR) in the Weyburn oil field. Over four years of production well monitoring at Weyburn, measured changes in chemical and isotopic data for produced aqueous fluids and gases (i.e. an increase in Ca2+, Mg2+, K+, SO42-, HCO3-, and CO2 concentration and a decrease in δ13CHCO3- and δ13CCO2 values), confirm the integrity of CO2 storage, trace CO2 migration and dissolution in the reservoir fluids, and record a range of water-rock- CO2 reactions including carbonate mineral dissolution and alteration of K-feldspar. K-feldspar alteration buffers the pH decrease resulting from CO2 injection, enhances aqueous CO2 storage as HCO3- (ionic trapping) and can lead to mineral storage of CO2 as CaCO3. Geochemical reaction path simulations of the water-mineral- CO2 system reproduce the changes in measured data observed over the first few years, confirming proposed reaction pathways and rates. Extension of these history matched reaction path simulations over 100s of years shows that alteration of K-feldspar and other silicate minerals present in the Weyburn reservoir will lead to further storage of injected CO2 in the aqueous phase and as carbonate minerals.
AB - At the International Energy Agency Greenhouse Gas (IEA GHG) Weyburn-Midale Project in Saskatchewan, Canada, CO2 storage research takes place alongside CO2 enhanced oil recovery (EOR) in the Weyburn oil field. Over four years of production well monitoring at Weyburn, measured changes in chemical and isotopic data for produced aqueous fluids and gases (i.e. an increase in Ca2+, Mg2+, K+, SO42-, HCO3-, and CO2 concentration and a decrease in δ13CHCO3- and δ13CCO2 values), confirm the integrity of CO2 storage, trace CO2 migration and dissolution in the reservoir fluids, and record a range of water-rock- CO2 reactions including carbonate mineral dissolution and alteration of K-feldspar. K-feldspar alteration buffers the pH decrease resulting from CO2 injection, enhances aqueous CO2 storage as HCO3- (ionic trapping) and can lead to mineral storage of CO2 as CaCO3. Geochemical reaction path simulations of the water-mineral- CO2 system reproduce the changes in measured data observed over the first few years, confirming proposed reaction pathways and rates. Extension of these history matched reaction path simulations over 100s of years shows that alteration of K-feldspar and other silicate minerals present in the Weyburn reservoir will lead to further storage of injected CO2 in the aqueous phase and as carbonate minerals.
KW - mineral reactions
KW - CO2 storage
KW - fluid measurements
KW - geochemical modeling
KW - carbon dioxide-water-silicate mineral reactions
KW - Weyburn
KW - K-feldspar
KW - silicate
KW - monitoring
KW - ionic trapping
KW - pH buffer
U2 - 10.1016/j.egypro.2009.02.097
DO - 10.1016/j.egypro.2009.02.097
M3 - Article
VL - 1
SP - 3149
EP - 3155
JO - Energy Procedia
JF - Energy Procedia
SN - 1876-6102
IS - 1
ER -