Relationship Between Depth and Hydraulic Conductivity Within the St. Francois Aquifer, Missouri
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Relationship Between Depth and Hydraulic Conductivity
Within the St. Francois Aquifer, Missouri
Emme MayleDr. Charles Rovey
Missouri State University
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Introduction Why do we care about the St. Francois
Aquifer? Water supply CO2 sequestration
Why look for relationships? Money …and money
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Background
Ozark Aquifer
St. Francois Confining UnitSt. Francois Aquifer“Basement”
- Main target for CO2 injection throughout Missouri. - Viability depends on effective caprock and high
permeability injection zone.
Image courtesy of City Utilities of Springfield, 2013
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Image courtesy of Big Sky Carbon Sequestration
Partnership.
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Geologic CO2 Sequestration into an Aquifer Conditions:
Saline Fully confined Large Near emissions source Permeable
Stratigraphic trapping
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Image courtesy of Australian Government Cooperative Research Centres “CO2CRC”2011
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Water Supply
Primary aquifers experiencing low-yield situations
St. Francois could be used where fresh
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Study Area St. Francois Aquifer
Lamotte and Reagan Sandstones
Testing sites
Courtesy of mofossils.com
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Study Area St. Francois Aquifer
Lamotte and Reagan Sandstones
Testing sites
The Confining Units Derby-Doerun and Davis Vertical K as low as 9x10-12 cm/s
- Kleeschulte and Seeger, 2003
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Methods Hydraulic conductivity and transmissivity Field:
Luecke, Florissant, Missouri Thomas Hill, Huntsville, Missouri
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Methods Hydraulic conductivity and transmissivity Field:
Luecke, Florissant, Missouri Thomas Hill, Huntsville, Missouri
Analysis: AQTESOLV
Cooper-Jacob straight line method Theis log-linear method Hantush-Jacob for leaky confined aquifers
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Methods Hydraulic conductivity and transmissivity Field:
Luecke, Florissant, Missouri Thomas Hill, Huntsville, Missouri
Analysis: AQTESOLV Specific capacity
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Methods Hydraulic conductivity and transmissivity Field:
Luecke, Florissant, Missouri Thomas Hill, Huntsville, Missouri
Analysis: AQTESOLV Specific capacity Compare conductivities
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Methods Hydraulic conductivity and transmissivity Field:
Luecke, Florissant, Missouri Thomas Hill, Huntsville, Missouri
Analysis: AQTESOLV Specific capacity Compare conductivities Graph possible correlations
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Results No distance-conductivity correlation
0 20 40 60 80 100 120 140 160 1800.000001
0.00001
0.0001
0.001
0.01
St. Francois Distance-Conductivity
ReaganLamotte
Distance from outcrop (mi)
Hydr
aulic
Cod
uctiv
ity (K
, cm
/s)
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Results Depth-conductivity
0 200 400 600 800 1000 12000.000001
0.00001
0.0001
0.001
0.01
R² = 0.503771548212062
St. Francois Depth-Conductivity
Reagan
Lamotte
Exponential (Lamotte)
Depth (meters)
Hydr
aulic
Con
duct
ivity
(K, c
m/s
ec)
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Results
0 200 400 600 8000.000001
0.00001
0.0001
0.001
0.01St. Francois Depth-Conductivity
Reagan
Lamotte
Exponential (Lamotte)
Depth (meters)
Hydr
aulic
Con
duct
ivity
(K, c
m/s
ec)
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Results
Useful to ~650 meters depth
Early-stage mapping using DNR well logs
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Discussion Final map will include more in-depth
permeability information for sites sponsored by MCSP, and should display closer precision.
Concerns about depth St. Francois Aquifer has definite potential
where shallow for both CO2 storage and water wells.
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Disclaimer This report was prepared as an account of work sponsored by an
agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement. Recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.
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Acknowledgements City Utilities of Springfield Mr. Gary Pendergrass Dr. Tom Plymate Dr. Doug Gouzie MO Department of Natural Resources Everyone involved with MCSPThis material is based upon work sponsored by theDepartment of Energy National Energy TechnologyLaboratory under Award Number DE-NT0006642 to CityUtilities of Springfield, MO.