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Showing 1 to 9 of 9 for “"slug test"”.
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Borehole Measurements of Dynamic Basal Drainage Adjustments During Sliding Accelerations: Bench Glacier, Alaska
… perturbations of borehole water levels, or slug tests, are a commonly employed means of characterizing the glacier hydrologic system. Results documenting the influence of slug testing on a field of boreholes and its change with time, however, are scarce. Slug tests were performed on Bench …
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Borehole Measurements of Dynamic Basal Drainage Adjustments During Sliding Accelerations: Bench Glacier, Alaska
… perturbations of borehole water levels, or slug tests, are a commonly employed means of characterizing the glacier hydrologic system. Results documenting the influence of slug testing on a field of boreholes and its change with time, however, are scarce. Slug tests were performed on Bench …
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Accurate Cylindrical-Coordinate Numerical Models For The Analysis Of Hydrologic Tests
… modeling codes for the simulation of hydrologic tests. One of these numerical modeling codes, the Slug Test Simulator (STS), was designed for the mechanics of a single well test, or slug test. STS can handle a variety of conditions including unconfined flow, partial penetration, layered …
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An Unsteady State Tracer Dilution Method for Characterizing Water Contributing Fractures in Crystalline Bedrock Wells
… of the well; releasing the packer to induce a slug test and fracture flow into the well which dilutes out the dye within the well; monitoring the dilution front movement by profiling the tracer concentration to locate water contributing fractures, calculate their transmissivity values, …
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Electrical resistivity and ground-penetrating radar as tools to characterize groundwater surface water interaction at Mirror Lake, NH
… (averaging-80 cm/day). Core, modeling, and slug test data suggest that these intermediate resistivity values reflect well-sorted, higher-porosity glacial drift. Resistivity surveys of the suspected region of salt contamination revealed a plume-shaped feature of low resistivity. Low …
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Hydrologic factors affecting the discharge of ground water in the Red River of the North Basin, northeastern North Dakota
… during low-flow periods.</p> <p>A pressurized slug test was designed for use in low-permeable sediments. Results indicate that this test provides an approach for estimating hydraulic conductivities in tight formations over short time periods.</p> <p>A ground-water flow model was used to …
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Some contributions to the hydraulic characterization of fractured bedrock formations
… groundwater sampling, formation hydraulic testing, and the conceptual model of formation hydraulics. This dissertation presents a field device, two hydraulic test methods, and one method of hydraulic test analysis developed to assist in the hydraulic characterization of fractured bedrock …
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Temporal Dynamics of Groundwater Flow Direction in a Glaciated, Headwater Catchment
… sediments of the C horizon. I conducted 47 slug tests across the well network to determine hydraulic properties of the aquifer materials surrounding each well. In addition, our team conducted a large-scale auger investigation mapping soil horizon depths and thicknesses. Results show that the …
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Hydrogeology and groundwater geochemistry of two glacigenic aquitard/aquifer systems in north-central and south-central Minnesota
… anions, nutrients, enriched 3H, δ18O, and δ2H. Slug tests were performed to estimate Kh in the till and aquifer tests were performed to estimate the bulk Kv of the aquitards.</p> <p>Hydraulic data at both sites suggest that groundwater flow is vertically downward. Geometric mean Kh values from …