Abstract
Principal Component Analysis (PCA) was used to evaluate groundwater quality data acquired in the pre-injection and injection periods for the Illinois Basin - Decatur Project (IBDP), a large-scale carbon capture and storage (CCS) project located in Decatur, Illinois, USA. For the pre-injection and injection periods three principal components explained 76.6% and 80.0% of the total data variance, respectively. Analysis of the pre-injection data set determined that highly positive loadings for total dissolved solids, chloride, bromide, sodium, magnesium, potassium, and electrical conductance designated the first component (PC1) as the salinity factor. High loadings for calcium, iron, and sulfate in component two (PC2) represents an oxidation-reduction component. The third component (PC3) represents groundwater acidity because of highly positive loading of pH. For the injection data set the variables contributed to the first component are bromide, sodium, total dissolved solids, chloride, electrical conductance, potassium, sulfate, iron, and calcium. Sulfate, magnesium, and calcium contribute to the second component and pH to the third component and represent salinity, dissolution, and acidity of groundwater. The results of the PC analysis indicate that water-rock interactions are the primary mechanism governing groundwater quality during both periods. The results of this analysis indicate that CO 2 injection activities have not impacted the quality of the shallow groundwater in the project area.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3182-3194 |
| Number of pages | 13 |
| Journal | Energy Procedia |
| Volume | 63 |
| DOIs | |
| State | Published - Jan 1 2014 |
| Event | 12th International Conference on Greenhouse Gas Control Technologies, GHGT 2014 - Austin, United States Duration: Oct 5 2014 → Oct 9 2014 |
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Keywords
- Carbon storage
- Groundwater
- Illinois basin
- Multivariate evaluation
- Principal component analysis
- Water quality
ASJC Scopus subject areas
- Energy(all)
Cite this
Multivariate statistical evaluation of groundwater compliance data from the Illinois Basin - Decatur Project. / Iranmanesh, Abbas; Locke, Randall Anthony; Wimmer, Bracken T.
In: Energy Procedia, Vol. 63, 01.01.2014, p. 3182-3194.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Multivariate statistical evaluation of groundwater compliance data from the Illinois Basin - Decatur Project
AU - Iranmanesh, Abbas
AU - Locke, Randall Anthony
AU - Wimmer, Bracken T.
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Principal Component Analysis (PCA) was used to evaluate groundwater quality data acquired in the pre-injection and injection periods for the Illinois Basin - Decatur Project (IBDP), a large-scale carbon capture and storage (CCS) project located in Decatur, Illinois, USA. For the pre-injection and injection periods three principal components explained 76.6% and 80.0% of the total data variance, respectively. Analysis of the pre-injection data set determined that highly positive loadings for total dissolved solids, chloride, bromide, sodium, magnesium, potassium, and electrical conductance designated the first component (PC1) as the salinity factor. High loadings for calcium, iron, and sulfate in component two (PC2) represents an oxidation-reduction component. The third component (PC3) represents groundwater acidity because of highly positive loading of pH. For the injection data set the variables contributed to the first component are bromide, sodium, total dissolved solids, chloride, electrical conductance, potassium, sulfate, iron, and calcium. Sulfate, magnesium, and calcium contribute to the second component and pH to the third component and represent salinity, dissolution, and acidity of groundwater. The results of the PC analysis indicate that water-rock interactions are the primary mechanism governing groundwater quality during both periods. The results of this analysis indicate that CO 2 injection activities have not impacted the quality of the shallow groundwater in the project area.
AB - Principal Component Analysis (PCA) was used to evaluate groundwater quality data acquired in the pre-injection and injection periods for the Illinois Basin - Decatur Project (IBDP), a large-scale carbon capture and storage (CCS) project located in Decatur, Illinois, USA. For the pre-injection and injection periods three principal components explained 76.6% and 80.0% of the total data variance, respectively. Analysis of the pre-injection data set determined that highly positive loadings for total dissolved solids, chloride, bromide, sodium, magnesium, potassium, and electrical conductance designated the first component (PC1) as the salinity factor. High loadings for calcium, iron, and sulfate in component two (PC2) represents an oxidation-reduction component. The third component (PC3) represents groundwater acidity because of highly positive loading of pH. For the injection data set the variables contributed to the first component are bromide, sodium, total dissolved solids, chloride, electrical conductance, potassium, sulfate, iron, and calcium. Sulfate, magnesium, and calcium contribute to the second component and pH to the third component and represent salinity, dissolution, and acidity of groundwater. The results of the PC analysis indicate that water-rock interactions are the primary mechanism governing groundwater quality during both periods. The results of this analysis indicate that CO 2 injection activities have not impacted the quality of the shallow groundwater in the project area.
KW - Carbon storage
KW - Groundwater
KW - Illinois basin
KW - Multivariate evaluation
KW - Principal component analysis
KW - Water quality
UR - http://www.scopus.com/inward/record.url?scp=84922896583&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84922896583&partnerID=8YFLogxK
U2 - 10.1016/j.egypro.2014.11.343
DO - 10.1016/j.egypro.2014.11.343
M3 - Conference article
AN - SCOPUS:84922896583
VL - 63
SP - 3182
EP - 3194
JO - Energy Procedia
JF - Energy Procedia
SN - 1876-6102
ER -