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Improved Rare Earth Element Sorption from Simulated Geothermal Brines: Effect of Gassed versus Degassed Brines

May 24, 2016
167.85 kB
Publicly accessible
A study exploring sorption and stripping characteristics of sorption media when simulated geothermal brines are degassed or not degassed. Experiments were done at 70degC. The brines used in this study were formulated by Tusaar. The two brines used/simulated are labeled 1M and 1C...
Authors
Stull, D. Tusaar Corp.
geothermalmediarare earth elementsmedia sorptiondegassed brinemineral recoverysimulated brinereegasseddegassedstrip-elutionelutionsorption studypacked column

Baseline System Costs for a 50 MW Enhanced Geothermal System 2012

Apr 30, 2012
5.08 MB
Publicly accessible
Substantial unexploited opportunity exists for the US, and the world, in Enhanced Geothermal Systems (EGS). This cost analysis study provides a baseline cost for a 50 MW Geothermal Power Plant in a challenging New England environment. The study then assesses how project costs wo...
Authors
Selman, N. Gas Equipment Engineering Corporation
egsgeothermalworking fluiddrillingcost analysiswestern massachusettsreservoir modelingmountain home idchina lakecaenhanced geothermal systems

Geothermal Resource at the McGee Mountain Prospect, Humboldt County, Nevada

Jul 01, 2010
2.64 MB
Publicly accessible
This report describes the geothermal resource at McGee Mountain, including: 1. Local geology 2. Thermal features 3. Known boreholes and temperature gradients 4. Geophysical surveys 5. Fluid geochemistry and geothermometry 6. Estimate of the heat-in-place Description of the heat-i...
Authors
Zehner, R. Geothermal Technical Partners, Inc.
geothermalnevadamcgee mountaingeologygeochemistrymonte carloheat in place estimatereportthermal featuresborehole gradienttemperature gradientgeophysicsgeophysical surveyboreholebore holegeothermometryfluidheat-in-place

EGS Collab Experiment 1: Second Set Tracer Test Results

Dec 19, 2019
4.94 MB
Publicly accessible
The EGS Collab project is developing ~10-20 m-scale field sites where fracture stimulation and flow models can be validated against controlled, small-scale, in-situ experiments. The first multi-well experimental site was established at the 4850 level in the Homestake Mine in Lead,...
Authors
Neupane, G. et al Idaho National Laboratory
geothermalenergyegs collabsurftracer testssigma-vc-dotsrhodamine-bfluoresceinbreakthrough curvechloridetracer datahydraulicfracturingsimulationtracerexperimentalegssanford underground research facilityinjectionsodium chloridelithium bromidecesium iodinetestbed 1stimulation

Pressure Sensor and Telemetry Methods for Measurement while Drilling in Geothermal Wells

Jan 01, 2012
517.29 kB
Publicly accessible
Project status report as of end of 2011. Key milestones and accomplishments in the year 2011 include: Proof of feasibility of analog and digital components with their lifetime tested for more than 500 hours at 300 degrees C, Demonstration of ceramic-based packaging capable of su...
Authors
Vert, A. GE Global Research
geothermalsicelectronicshigh temperaturemeasurement while drillingmud pulsingpressure sensortelemetrytemperature sensorpressure measurementtechnical reportyear end reportintegrated circuitryegs

Assessing REE Concentrations in Geothermal and Oil and Gas Produced Waters: A Potential Domestic Source of Strategic Mineral Commodities

Mar 08, 2019
11.78 MB
Publicly accessible
The project team collected and analyzed 224 water samples and 101 matching rock samples. INL's improved method of measuring aqueous REEs allows study of samples previously thought too volume limited to measure. The study found that aqueous REEs occur at trace levels in all analyz...
Authors
Quillinan, S. et al University of Wyoming
geothermalenergyreeoil and gasgeochemistryrare earth elementsproduced watertracerecoveryresourcecommoditymineralaqueousconcentrationspatialspatially-dependentvariablechemistrysamplingcoproducedproduced fluid

EGS Collab Experiment 2: Results of Tracer Tests

Jul 26, 2022
3.36 MB
Publicly accessible
Multiple sets of tracer tests were conducted at the EGS Collab Testbed 2 on the 4100 L at the Sanford Underground Research Facility (SURF), Lead, SD. The enclosed data package includes: tracer recovery results, water balance calculations and rationales, water flow measurement for ...
Authors
Neupane, G. et al Idaho National Laboratory
geothermalenergyegs collabegssurfsanford underground research facilityleadsouth dakotacollabfracture transportraw dataprocessed data

Applications of Geothermally-Produced Colloidal Silica in Reservoir Management Smart Gels

Jan 31, 2013
3.56 MB
Publicly accessible
In enhanced geothermal systems (EGS) the reservoir permeability is often enhanced or created using hydraulic fracturing. In hydraulic fracturing, high fluid pressures are applied to confined zones in the subsurface usually using packers to fracture the host rock. This enhances r...
Authors
Hunt, J. et al Lawrence Livermore National Laboratory
geothermalzonal isolationreservoir managementfluid diversioncolloidal silicasilicacoproduction

Experimental Parameters Affecting Stripping of Rare Earth Elements from Loaded Sorptive Media in Simulated Geothermal Brines

May 24, 2016
247.65 kB
Publicly accessible
Experimental results from several studies exploring the impact of pH and acid volume on the stripping of rare earth elements (REEs) loaded onto ligand-based media via an active column. The REEs in this experiment were loaded onto the media through exposure to a simulated geother...
Authors
Stull, D. Tusaar Corp.
geothermalmediarare earth elementsmedia strippingphreemineral recoveryadsorptioncolumnelutionexperimentsimulated brinerare earth elementbrine study

Utah FORGE: Geothermal Resource Assessment Report 2024

Jun 20, 2025
750.87 kB
Publicly accessible
This report provides a first-order assessment of the producible energy from the Utah FORGE EGS reservoir, based on stimulation and circulation testing in 2024. The assessment is based on a stored heat calculation for a cylindrical volume of stimulated hot dry rock enveloping the d...
Authors
Simmons, S. and Barker, B. Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgegeothermal resource assessmentgeothermal resource assessment reportgeothermal energyhot dry rockegsstored heatresource assessmentrecovery factor16b78-32technical reportcirculation testpower productionanalytical solution

OM300 Direction Drilling Module

Aug 22, 2013
39.67 kB
Publicly accessible
OM300 Geothermal Direction Drilling Navigation Tool A prototype directional drilling navigation tool capable of high temperature operation in geothermal drilling with: Accuracies of 0.1 degree Inclination and Tool Face, 0.5 degree Azimuth Environmental Ruggedness typical of existi...
Authors
MacGugan, D. Honeywell International, Inc.
geothermaldirectional drillingsoinavigationhigh temperatureelectronicsmodulesilicon-on-insulatordata archive

Utah FORGE 1-2551: Final Report and Presentation on Development of Multi-Stage Fracturing System and Wellbore Tractor to Enable Zonal Isolation During Stimulation and EGS Operations in Horizontal Wellbores

Jul 08, 2025
143.48 MB
Publicly accessible
This dataset contains the final technical report for the CSM project, conducted by the Colorado School of Mines and project partners to address materials and wellbore challenges in high-temperature geothermal environments. The report documents research activities carried out to de...
Authors
Fleckenstein, W. Colorado School of Mines
geothermalenergyutah forgeegsfrac sleevesseal dragcollet test fixturessleeve actuationeconomic modeldifferential pressuretechnical reportwellbore isolationmultistage fracturestimulation technologyflow controlheat recovery

Harsh Environment Sensors for Geothermal Applications

Jan 01, 2012
2.36 MB
Publicly accessible
Technical papers detailing the development of harsh environment sensors for geothermal applications. Principle Investigator is Prof. Albert P. Pisano (University of California, Berkeley). Submission includes a paper about geothermal environmental exposure testing on encapsulant a...
Authors
Senesky, D. et al Regents of the University University of California
geothermalharsh environmentsensorpressuretemperaturesilicon carbidesapphirealuminum nitridedown-holeloggingmonitoringmemsencapsulationexposureenvironmental exposuredownholemass changesputter xpschemical analysismicroelectromechanical

Caldwell Ranch Exploration and Confirmation Project, Northwest Geysers, CA: 2011 Geothermal Technologies Peer Review Project Summary

Jan 01, 2011
51.4 kB
Publicly accessible
Caldwell Ranch Exploration and Confirmation Project, Northwest Geysers, CA: 2011 Geothermal Technologies Peer Review Project Summary The Caldwell Ranch Exploration and Confirmation Project was to drill, test, and confirm the present economic viability of the undeveloped geothermal...
Authors
Walters, M. Geysers Power Company, LLC
geothermalcaldwell ranchlow temperature zonehigh temperature zonesteamtracernon-condensable gaseswaste water injectionre-completionsidetrackreservoirgeysers fieldpeer reviewsonoma countycalifornia

Hotspot Project: The Snake River Geothermal Drilling Project Initial Report

Jan 01, 2012
1.71 MB
Publicly accessible
The Snake River volcanic province (SRP) overlies a thermal anomaly that extends deep into the mantle; it represents one of the highest heat flow provinces in North America. The primary goal of this project is to evaluate geothermal potential in three distinct settings: (1) Kimama ...
Authors
Shervais, J. et al Utah State University
geothermalhotspot projectbasaltgeophysicalkimamakimberleygravitymagneticseismicloggingidahoaquifersnake rivervolcanic provinceplainhotspotexplorationrhyolitedrillingdownholelithologylithologic logstratigraphic column

CIRES Approach Overview to Using Thermal Infrared Imagery to Find Geothermal Systems in Colorado

Feb 01, 2012
237.36 kB
Publicly accessible
Subsurface geothermal activity has a thermal expression that can be observed at the surface. Such spatial temperature gradients are within the radiometric resolution that is characteristic of a wide range of satellites that carry thermal sensors. For this effort, CIRES (part of ...
Authors
Hussein, K. Flint Geothermal, LLC
geothermalcoloradociresasterlandsatremote sensingthermal infraredtarget areasgeothermal potentialidentifydeep resource wellspotential

Dynamic Earth Energy Storage: Terawatt-Year, Grid-Scale Energy Storage using Planet Earth as a Thermal Battery (GeoTES): Seedling Project Final Report

May 31, 2019
4.48 MB
Publicly accessible
Grid-scale energy storage has been identified as a needed technology to support the continued build-out of intermittent renewable energy resources. As of April 2017, the U.S. had approximately 24.2 GW of energy storage on line, compared to 1,081 GW of installed generation capacity...
Authors
McLing, T. et al Idaho National Laboratory
energy storagegeothermal energythermal energy storagegeotestestemperatureporositymodelingsteamrankine cycleflue gasheatrecoverythermalhydrologylinear stabilitydirect usegoethermalbrinegrid stabilizationinjection testweber formationweber sandstonertes

A Class III Cultural Resources Inventory of Proposed Roads and Drill Pads for the McGee Mountain Geothermal Project, Humboldt County, Nevada

Aug 10, 2010
447.37 kB
Publicly accessible
From July 20th to July 22nd, 2010, Chambers Group personnel conducted a cultural resources inventory of the project area. The recordation and inventory resulted in the recordation a single newly identified prehistoric site (CrNV-2-9605) and five isolated finds (CrNV-2-1490 to 1494...
Authors
Zehner, R. Geothermal Technical Partners, Inc.
geothermalnevadamcgee mountaincultural studycultural resourcesinventoryhumboldt county

Geothermal Thermoelectric Generation (G-TEG) with Integrated Temperature Driven Membrane Distillation and Novel Manganese Oxide for Lithium Extraction Final Report

Mar 01, 2018
1.99 MB
Publicly accessible
This project aims to develop an innovative Geothermal ThermoElectric Generation (G-TEG) system specially designed to both generate electricity and extract high-value lithium (Li) from low-temperature geothermal brines. The process combined five modular technologies including silic...
Authors
Renew, J. et al Southern Research Institute
geothermalenergygteglithium extractionlithium sorbencythermoelectric powerdevelopmentfabricationintegrated membrane distillationmethodstechnical assessmenteconomic assessmenttechnoeconomictechno-economicpower generationmanganese oxide sorbentmn-oxidemno2

Compatibility Study of Nanofiltration and Reverse Osmosis Membranes with 1 Cyclohexylpiperidenium Bicarbonate Solutions

Oct 01, 2015
813.38 kB
Publicly accessible
The switchable polarity solvent forward osmosis (SPS FO) desalination process requires use of a polishing filtration step to remove trace quantities of draw solution from the product water stream. Selected nanofiltration (NF) and reverse osmosis (RO) membranes were tested for thei...
Authors
Adhikari, B. et al Idaho National Laboratory
geothermalswitchable polarity solvent forward osmosisnanofiltrationreverse osmosismembranesps fobrinecoupon testsmodule tests

Finite Volume Based Computer Program for Ground Source Heat Pump System Final Scientific Report

Jul 31, 2013
5.62 MB
Publicly accessible
The goal of this project was to develop a detailed computer simulation tool for GSHP (ground source heat pump) heating and cooling systems. Two such tools were developed as part of this DOE (Department of Energy) grant; the first is a two-dimensional computer program called GEO2D ...
Authors
Menart, J. and Frederick, J. Wright State University
geothermalground source heat pump systemscomputer modelingvertical wellshorizontal wellsheat rate resultscop resultsfinal reportgeo2dgeo3dcodecomputermodelingwellsreportheat pumps

Memos Relating to 2011 Field Checking of CIRES ASTER Thermal Targets

Feb 01, 2012
5.89 MB
Publicly accessible
In 2010 and 2011, Flint Geothermal commissioned CIRES from the University of Colorado to attempt to detect "blind" or buried geothermal systems using remote sensing. CIRES utilized thermal infrared bands from ASTER and LANDSAT satellite imagery to detect areas of warm ground in pa...
Authors
Zehner, R. and Hussein, K. Flint Geothermal, LLC
geothermalcoloradoremote sensingasterlandsatthermal infraredsite assessmentblind geothermal systemsburied geothermal systems

Feasibility of a Deep Direct-Use Geothermal System at the University of Illinois Urbana-Champaign

Dec 31, 2018
6.08 MB
Publicly accessible
Paper authored by Stumpf et al. for the 2018 Geothermal Resources Council Annual Meeting held in Reno, NV USA. Included with the paper is the Microsoft PowerPoint presentation made at the GRC meeting and data tables associated with some of the figures.
Authors
Stumpf, A. et al University of Illinois
geothermalenergyuniversity of illinois at urbana-champaignddudeep direct-useillinois basingeocellular modelingwellbore modelingtemperaturewellwellboremodelingfeasibilitycharacterizationillinois

Magnetic Nanofluid Rare Earth Element Extraction Process Report, Techno Economic Analysis, and Results for Geothermal Fluids

Mar 14, 2016
1.86 MB
Publicly accessible
This GDR submission is an interim technical report and raw data files from the first year of testing on functionalized nanoparticles for rare earth element extraction from geothermal fluids. The report contains Rare Earth Element uptake results (percent removal, mg Rare Earth Ele...
Authors
McGrail, P. Pacific Northwest National Laboratory
geothermalreemofnanofluidrare earth elementmetal organic frameworkgeothermal mineral recoveryneodymiumeuropiumyttriumdysprosiumcesiummagnetic separationmetal uptaketechno economic analysisrare earth element extractiontechno economicsilica sorbentsuptake results

Performance, Cost, and Financial Parameters of Geothermal District Heating Systems for Market Penetration Modeling under Various Scenarios

Mar 23, 2017
Size unavailable
Publicly accessible
The U.S. Department of Energy Geothermal Vision (GeoVision) Study is currently looking at the potential to increase geothermal deployment in the U.S. and to understand the impact of this increased deployment. This paper reviews 31 performance, cost, and financial parameters as inp...
Authors
Beckers, K. and Young, K. National Renewable Energy Laboratory
geothermalenergydirect-usedistrict heatingegsgdhenhancedengineeredgeovisionhydrothermaleconomicfinancialoperation and maintenanceomcostperformancedeploymentmarket
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