Frederick D. Day-Lewis (Former Employee)
Science and Products
Filter Total Items: 13
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Use of borehole radar methods and borehole geophysical logs to monitor a field-scale vegetable oil biostimulation pilot project at Fridley, Minnesota Use of borehole radar methods and borehole geophysical logs to monitor a field-scale vegetable oil biostimulation pilot project at Fridley, Minnesota
Cross-hole and surface-to-borehole radar and conventional borehole geophysical logs were used to monitor subsurface injections of vegetable oil emulsion conducted as part of a field-scale biostimulation pilot project at the Anoka County Riverfront Park (ACP), located downgradient of the Naval Industrial Reserve Ordnance Plant (NIROP), in Fridley, Minnesota. The pilot project was...
Authors
John W. Lane, Clifton C. Casey, Frederick D. Day-Lewis, A. Witten, Roelof J. Versteeg
Assessing the resolution-dependent utility of tomograms for geostatistics Assessing the resolution-dependent utility of tomograms for geostatistics
Geophysical tomograms are used increasingly as auxiliary data for geostatistical modeling of aquifer and reservoir properties. The correlation between tomographic estimates and hydrogeologic properties is commonly based on laboratory measurements, co-located measurements at boreholes, or petrophysical models. The inferred correlation is assumed uniform throughout the interwell region...
Authors
F. D. Day-Lewis, J.W. Lane
Application of cross-borehole radar to monitor fieldscale vegetable old injection experiments for biostimulation Application of cross-borehole radar to monitor fieldscale vegetable old injection experiments for biostimulation
Cross-borehole radar methods were used to monitor a field-scale biostimulation pilot project at the Anoka County Riverfront Park (ACP), located downgradient of the Naval Industrial Reserve Ordnance Plant, in Fridley, Minnesota. The goal of the pilot project is to evaluate biostimulation using emulsified vegetable oil to treat ground water contaminated with chlorinated hydrocarbons...
Authors
John W. Lane, Frederick D. Day-Lewis, Roelof J. Versteeg, C.C. Casey, Peter K. Joesten
Object-based inversion of crosswell radar tomography data to monitor vegetable-oil injection experiment Object-based inversion of crosswell radar tomography data to monitor vegetable-oil injection experiment
Crosswell radar tomography methods can be used to dynamically image ground-water flow and mass transport associated with tracer tests, hydraulic tests, and natural physical processes. Dynamic imaging can be used to identify preferential flow paths and to help characterize complex aquifer heterogeneity. Unfortunately, because the raypath coverage of the interwell region is limited by the...
Authors
John W. Lane, Frederick D. Day-Lewis, Roelof J. Versteeg, C.C. Casey
Time‐lapse imaging of saline‐tracer transport in fractured rock using difference‐attenuation radar tomography Time‐lapse imaging of saline‐tracer transport in fractured rock using difference‐attenuation radar tomography
Accurate characterization of fractured‐rock aquifer heterogeneity remains one of the most challenging and important problems in groundwater hydrology. We demonstrate a promising strategy to identify preferential flow paths in fractured rock using a combination of geophysical monitoring and conventional hydrogeologic tests. Cross‐well difference‐attenuation ground‐penetrating radar was...
Authors
Frederick D. Day-Lewis, John W. Lane, Jerry M. Harris, Steven M. Gorelick
Time‐lapse inversion of crosswell radar data Time‐lapse inversion of crosswell radar data
The combination of differential radar tomography with conventional tracer and/or hydraulic tests facilitates high‐resolution characterization of subsurface heterogeneity and enables the identification of preferential flow paths. In dynamic imaging, each tomogram is typically inverted independently, under the assumption that data sets are collected quickly relative to changes in the...
Authors
Frederick D. Day-Lewis, Jerry M. Harris, Steven M. Gorelick
Science and Products
Filter Total Items: 13
No Result Found
Filter Total Items: 94
Use of borehole radar methods and borehole geophysical logs to monitor a field-scale vegetable oil biostimulation pilot project at Fridley, Minnesota Use of borehole radar methods and borehole geophysical logs to monitor a field-scale vegetable oil biostimulation pilot project at Fridley, Minnesota
Cross-hole and surface-to-borehole radar and conventional borehole geophysical logs were used to monitor subsurface injections of vegetable oil emulsion conducted as part of a field-scale biostimulation pilot project at the Anoka County Riverfront Park (ACP), located downgradient of the Naval Industrial Reserve Ordnance Plant (NIROP), in Fridley, Minnesota. The pilot project was...
Authors
John W. Lane, Clifton C. Casey, Frederick D. Day-Lewis, A. Witten, Roelof J. Versteeg
Assessing the resolution-dependent utility of tomograms for geostatistics Assessing the resolution-dependent utility of tomograms for geostatistics
Geophysical tomograms are used increasingly as auxiliary data for geostatistical modeling of aquifer and reservoir properties. The correlation between tomographic estimates and hydrogeologic properties is commonly based on laboratory measurements, co-located measurements at boreholes, or petrophysical models. The inferred correlation is assumed uniform throughout the interwell region...
Authors
F. D. Day-Lewis, J.W. Lane
Application of cross-borehole radar to monitor fieldscale vegetable old injection experiments for biostimulation Application of cross-borehole radar to monitor fieldscale vegetable old injection experiments for biostimulation
Cross-borehole radar methods were used to monitor a field-scale biostimulation pilot project at the Anoka County Riverfront Park (ACP), located downgradient of the Naval Industrial Reserve Ordnance Plant, in Fridley, Minnesota. The goal of the pilot project is to evaluate biostimulation using emulsified vegetable oil to treat ground water contaminated with chlorinated hydrocarbons...
Authors
John W. Lane, Frederick D. Day-Lewis, Roelof J. Versteeg, C.C. Casey, Peter K. Joesten
Object-based inversion of crosswell radar tomography data to monitor vegetable-oil injection experiment Object-based inversion of crosswell radar tomography data to monitor vegetable-oil injection experiment
Crosswell radar tomography methods can be used to dynamically image ground-water flow and mass transport associated with tracer tests, hydraulic tests, and natural physical processes. Dynamic imaging can be used to identify preferential flow paths and to help characterize complex aquifer heterogeneity. Unfortunately, because the raypath coverage of the interwell region is limited by the...
Authors
John W. Lane, Frederick D. Day-Lewis, Roelof J. Versteeg, C.C. Casey
Time‐lapse imaging of saline‐tracer transport in fractured rock using difference‐attenuation radar tomography Time‐lapse imaging of saline‐tracer transport in fractured rock using difference‐attenuation radar tomography
Accurate characterization of fractured‐rock aquifer heterogeneity remains one of the most challenging and important problems in groundwater hydrology. We demonstrate a promising strategy to identify preferential flow paths in fractured rock using a combination of geophysical monitoring and conventional hydrogeologic tests. Cross‐well difference‐attenuation ground‐penetrating radar was...
Authors
Frederick D. Day-Lewis, John W. Lane, Jerry M. Harris, Steven M. Gorelick
Time‐lapse inversion of crosswell radar data Time‐lapse inversion of crosswell radar data
The combination of differential radar tomography with conventional tracer and/or hydraulic tests facilitates high‐resolution characterization of subsurface heterogeneity and enables the identification of preferential flow paths. In dynamic imaging, each tomogram is typically inverted independently, under the assumption that data sets are collected quickly relative to changes in the...
Authors
Frederick D. Day-Lewis, Jerry M. Harris, Steven M. Gorelick