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Development of 3D Geological Model of Tuscarora Sandstone for Feasibility of Deep Direct-Use Geothermal at West Virginia University Main CampusSource

The subsurface uncertainty at West Virginia University Main Campus is dominated by the uncertainty in the projections of geofluid flowrate in the target formation, the Tuscarora Sandstone. In this paper, three cores from the heterogeneous reservoir, available through West Virginia Geologic and Economic Survey, are analyzed by performing core analysis using CT scanning and permeability measurements via minipermeameter. Additional geological data are collected through cores, published literature, seismic data, and nearby, existing wells to estimate thickness, fracture network configuration and geothermal gradient to minimize the uncertainty of well deliverability. Using these estimated reservoir properties; a 3D conceptual model for the proposed geothermal site is developed. This dataset includes a GRC conference publication along with the data used to produce results explained in the paper including minipermeability measurement data for Preston -119 core and thin section analysis photos and data for Clay-513 core.

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3DClay-513Core AnalysisDirect UsePreston-119Tuscarora Sandstoneanalysisdataddudeepenergyfeasibilityflow rategeofluidgeologic modelgeologygeothermalgrcminipermeabilitypaperparameter estimationpermeabilityphotospresentationreservoirstudythin sectionwvu
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National Renewable Energy Laboratory (NREL)about 1 year ago
Recovery of Rare Earth Elements from Geothermal Fluids through Bacterial Cell Surface AdsorptionSource

We summarized the FY17 and part of FY18 results of the analysis of the effect of several parameters (e.g., total dissolved solids, specific competing metals, pH, and temperature) on REE recovery from geothermal brine in a manuscript that was submitted to Environmental Science & Technology. In this manuscript, we investigate biosorption as a potential means of recovering REEs from geothermal fluids, a low-grade but abundant REE source. We have previously engineered E. coli to express lanthanide binding tags (LBTs) on the cell surface and the resulting strain showed an increase in both REE adsorption capacity and selectivity. Here we examined how REE adsorption by the engineered E. coli is affected by various geochemical factors relevant to geothermal fluids, including total dissolved solids (TDS), temperature, pH, and the presence of competing trace metals.

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E. coliLBTREEadsorptionbacteriabioadsorptionbioengineeringbiosorptionbrinecellelementsenergyfactorsfluidgeochemicalgeochemistrygeofluidgeothermallanthanide bindingmicrobemicrobialrare earthsurfacetag
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National Renewable Energy Laboratory (NREL)about 1 year ago