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"Reservoir Thermal Energy Storage"×
Utah FORGE, UT×

Utah FORGE: 2024 Discrete Fracture Network Model Data

Sep 08, 2024
1.4 GB
Publicly accessible
The Utah FORGE 2024 Discrete Fracture Network (DFN) Model dataset provides a set of files representing discrete fracture network modeling for the FORGE site near Milford, Utah. The dataset includes four distinct DFN model file sets, each corresponding to different time frames and ...
Authors
Finnila, A. and Jones, C. Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgedfndiscrete fracture modellingfracturesstochastic fracturestensile fracturesdiscrete fracture network modelegsplanar fracturespermeabilityporositycompressibilitystoragemeqhydraulic stimulationmodelmodelingprocessed data

Utah FORGE: 2024 Annual Report on Activities and Advancements

Jan 27, 2025
19.87 MB
Publicly accessible
This 2024 annual report for Phase 3B Year 2 at Utah FORGE provides an in-depth account of activities and advancements made at the site. Key achievements include drilling and stimulating the production well 16B(78)-32, creating a geothermal reservoir, and achieving commercial-scale...
Authors
McLennan, J. et al Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgephase 3byear 2yearly reportreportutah forge reportdrillingreservoir creationutah forge phase 3b report2024 annual reportegswell 16b78-32stimulationcirculationfiber optic monitoringdrilling technologiesseismic monitoringresearch and developmenttechnical reportannual report

Utah FORGE: Native State Numerical Model 2025 Update

Jan 30, 2026
456.3 MB
Publicly accessible
This dataset contains a three-dimensional native-state numerical model of the Utah FORGE site, updated in 2025, representing thermal, hydraulic, and stress conditions within the granitic reservoir and overlying sedimentary formations. The model domain extends 6 km by 6 km laterall...
Authors
Vazic, B. et al Idaho National Laboratory
geothermalenergyforgenative state modelutah forgeegsnumerical simulationgeothermal reservoirthermal-hydraulic modelingin-situ stressgranitic reservoirmoosesubsurface temperaturepore pressuremesh

Utah FORGE 5-2565: Hydrothermal Evolution of Fracture Properties 2023 Annual Workshop Presentation

Sep 08, 2023
99.84 MB
Publicly accessible
This is a presentation on the Evolution of Permeability and Strength Recovery of Shear Fractures Under Hydrothermal Conditions project by the U.S. Geological Survey, presented by Dr. David Lockner. The project's objective was to determine how thermal, hydraulic, mechanical, and ch...
Authors
Lockner, D. et al United States Geological Survey
geothermalenergyannual workshop2023utah forgeegsfracture propertiesthmcpermeabilityfracture strengthmicromechanicalempiricalfracture modelsgeophysicsnumerical modelthermal couplingreservoir longevityfracture evolutionhydrothermalgeomechanicalgeochemicalpresentation

Utah FORGE: Evaluation of Potential Geochemical Responses to Injection in the FORGE Geothermal Reservoir

Apr 03, 2019
324.78 kB
Publicly accessible
Plugging of fracture porosity from mineral precipitation due to injecting cold water into a a geothermal reservoir can impact the overall permeability of the fracture network in the reservoir. This can have serious ramifications on the efficiency of the geothermal resource. Geoche...
Authors
Patil, V. and Simmons, S. Energy and Geoscience Institute at the University of Utah
geothermalenergyforge-utahgeochemistrynumerical modelingfractureinjection testporosityfracture networkmodelingwell 58-32well datastimulationdrillingroosevelt hot springswell 45-3reservoirmineralsthermalaqueousquartzcalciteillitekaolinitephpolythermalreaction pathutah forgeegsmilfordutahenergy geoscience institute

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

Utah FORGE 5-2428: Fracture Permeability Impact on Reservoir Stress and Seismic Slip Behavior 2025 Workshop Presentation

Sep 18, 2025
129.18 MB
Publicly accessible
This is a presentation on the Fracture Permeability Impact on Seismic Slip Behavior project by Lawrence Livermore National Laboratory, presented by Dr. Kayla A. Kroll. The project's objective is to develop, apply and validate a holistic thermal, hydrologic, mechanical, and chemica...
Authors
Kroll, K. Lawrence Livermore National Laboratory
geothermalenergyutah forgeegs2025 annual workshopfracture permeabilityinduced seismicityseismic slipthmcreservoir modelinghydromechanical behaviorpresentationpresentation recordingpresentation slidesreport

Utah FORGE 2-2446: Report on Laboratory Block Experiments with Six Different Combinations of Stresses and Rock Fabrics

Jan 30, 2025
15.21 MB
Publicly accessible
This report documents a series of block-scale hydraulic fracturing experiments, simulating Utah FORGE conditions to investigate how different combinations of in situ stress regimes, well orientations, and thermal stress conditions influence fracture initiation and propagation. The...
Authors
Bunger, A. and Lu, Y. Lawrence Livermore National Laboratory
geothermalenergyutah forgehydraulic fracturingtriaxial loadingegsblock-scalein situ stressthermal stimulationbreakdown pressurefracture propagationrock mechanicsfracture mappinglaboratory experimentsreservoir stimulationtechnical report

Utah FORGE: Optimization of a Plug-and-Perf Stimulation (Fervo Energy)

Feb 08, 2023
6.91 MB
Publicly accessible
Information around the plug-and-perf treatment design at Utah FORGE by Fervo Energy. Objective and Purpose: Develop a multistage hydraulic stimulation approach designed specifically to target the top three factors that control the technical and commercial viability of an EGS sys...
Authors
Norbeck, J. et al Fervo Energy
geothermalenergyutah forgeplug-and-perf stimulationwell stimulationfervo energyplug-and-perfplug and perffervotechnicalassessmentfeasibilityhydraulicstimulationinjection testprocessed datablue mountainnevadaegswell 73-22well 34a-22well 34-22near-field egshorizontal drillingproppantheat in placestate of stressfiber optic sensing

Utah FORGE: Well Data for Student Competition

Dec 07, 2018
33.96 MB
Publicly accessible
Well 58-32 (previously labeled MU-ESW1) was drilled near Milford Utah during Phase 2B of the FORGE Project to confirm geothermal reservoir characteristics met requirements for the final FORGE site. Well Accord-1 was drilled decades ago for geothermal exploration purposes. While ...
Authors
Podgorney, R. et al Idaho National Laboratory
geothermalenergyforgestudent competition58-32accord-1egsroosevelt hot springsmilfordutahreservoir characteristicswell loggeophysicalgeophysicslithologythermal conductivityx-ray diffractionwell surveysonicwell locationsdensitycaliperhole diametergammagrradiationresistivityneutronporositysptemperatureconductivityspecific potentialmu-esw1welldatawell dataresourcecharacterizationexplorationutah forge

Utah FORGE 5-2565: Evolution of Permeability and Strength Recovery of Shear Fractures Under Hydrothermal Conditions 2024 Annual Workshop Presentation

Sep 15, 2024
82.63 MB
Publicly accessible
This is a presentation on the Evolution of Permeability and Strength Recovery of Shear Fractures Under Hydrothermal Conditions by United States Geological Survey, presented by Tamara Jeppson. This video slide presentation, by the USGS, discusses the determination of how thermal, ...
Authors
Jeppson, T. et al Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgeusgsthmcthermalhydrologicmechanicalchemicalfracture networksfractures propertiesfracturesmodes of reactionempirical fracture modelsmicromechanical

Utah FORGE 2439: Report on Minifrac Tests for Stress Characterization

Feb 22, 2024
21.49 MB
Publicly accessible
This report describes minifrac tests conducted in the 16B(78)-32 well at the Utah FORGE site to characterize subsurface stresses, including the magnitude and orientation of the minimum and maximum horizontal stresses and the magnitude of the vertical stress. A minifrac test was co...
Authors
Kelley, M. et al Battelle Memorial Institute
geothermalenergyutahforgeegsstressgeomechanicsminifracin-situ stress16b16b78-32geophysicshydraulic fracturingvertical stressminimum horizontal stressmaximum horizontal stressstress regimeflowback datare-opening pressurepressure responsethermal coolingrcxcirculationtechnical report

Utah FORGE 8-3637: Integrated Diagnostics for Interpreting Doublet Heat Sweep Efficiency 2025 Workshop Presentation

Sep 18, 2025
78.44 MB
Publicly accessible
This is a presentation on the Integrated Diagnostics for Interpreting Doublet Heat Sweep Efficiency by Texas Tech University, presented by Smith Leggett. This video slide presentation discusses the ID squared technical objectives to develop and integrate diagnostic tools to determ...
Authors
Leggett, S. Texas Tech University
geothermalenergyutah forgeegs2025 annual workshopheat sweep efficiencyfracture diagnosticsflow distributionheat exchangereservoir characterizationthermal efficiencydiagnostic toolspresentationpresentation recordingpresentation slidesreport

Utah FORGE 2-2439v2: A Multi-Component Approach to Characterizing In-Situ Stress Final Report

Dec 22, 2025
2.43 MB
Publicly accessible
This comprehensive technical report documents a multi-component approach to in-situ stress characterization at the Utah FORGE EGS site that integrates Machine Learning (ML) methods for predicting near-well principal stresses around geothermal wells with the physics-based finite el...
Authors
Bunger, A. et al University of Pittsburgh
geothermalenergyin-situ stress estimationutah forgewave velocitythermo-poro-elastic modelingmachine learningegsnear-wellbore stressfar-field principal stressstress anisotropyphysics-based modelingfinite element modelingsonic logtuvtechnical reportreservoir characterization

Utah FORGE 2-2439v2: Reports on Stress Prediction and Modeling for Well 16B(78)-32 May 2025

Jun 05, 2025
20.34 MB
Publicly accessible
These two reports from the University of Pittsburgh document related efforts under Utah FORGE Project 2-2439v2 to estimate in-situ stresses in well 16B(78)-32 using laboratory data, machine learning models, and physics-based simulations. One report focuses on developing and valida...
Authors
Lu, G. et al University of Pittsburgh
geothermalenergyutah16b78-32in-situ stressultrasonic velocityutah forgeegs16bmachine learningtrue triaxial testingsonic logsstress predictionfar-field stressthermo-poro-mechanicalmodelingdeep learningfinite element modelgeothermal reservoirstress profilingstress anisotropytechnical report

Utah FORGE 4-2541: Optimization and Validation of a Plug-and-Perf Stimulation Treatment Design 2023 Annual Workshop Presentation

Sep 08, 2023
62.84 MB
Publicly accessible
This is a presentation on the Optimization and Validation of a Plug-and-Perf Stimulation Treatment Design at Utah FORGE project by Fervo Energy, presented by Sireesh Dadi. The project's objective was to develop a multistage hydraulic stimulation approach designed specifically to t...
Authors
Dadi, S. and Norbeck, J. Fervo Energy
geothermalenergyannual workshop2023utah forgeegsinjectivitycross-well flowflow ratesflow distributionheat mining efficiencysustained heat transferplug-and-perfstimulationstress heterogeneitystress shadowingthermal breakdownpresentation

Utah FORGE 5-2428: Fracture Permeability Impact on Reservoir Stress and Seismic Slip Behavior 2023 Annual Workshop Presentation

Sep 08, 2023
79.68 MB
Publicly accessible
This is a presentation on the Fracture Permeability Impact on Seismic Slip Behavior project by Lawrence Livermore National Laboratory, presented by Dr. Kayla A. Kroll. The project's objective is to develop, apply and validate a holistic thermal, hydrologic, mechanical, and chemic...
Authors
Kroll, K. et al Lawrence Livermore National Laboratory
geothermalenergyannual workshop2023utah forgeegsthmcinduced seismicityseismic slipearthquake simulationspressure statestress statepredictionsseismic hazardresource optimizationmitigationgeomechanicalgeochemicalslip-induced permeabilitycoupled processesfracture permeabilitypresentationstochastic parameter estimationslip simulation

Utah FORGE: Well 58-32 Granite Core Thermal Properties Test Results Report (Oct. 2021)

Oct 29, 2021
1.12 MB
Publicly accessible
This is a presentaiton from Metarock Laboratories on the thermal properties of Utah FORGE well 58-32 granite core. The presentation includes pictures of core samples, core details for the samples (sample depths and size), sample thermal expansion test results, and radial velocity ...
Authors
Laboratories, M. Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgeegswell 58-32well 58-32 granite thermal propertiesutah forge granite thermal propertieswell 58-32 graniterock thermal propertiesthermal expansiontesttestinggranite testingcore testinggranite core testingradial velocity testingradial velocitythermal expansion testingutah forge granitethermal propertiesforgetemperaturepresentationtemperature monitoringwell datacharacterizationcore data

Utah FORGE: Laboratory Experiments Examining the Effect of Thermal and Mechanical Processes on Hydraulic Transmissivity Evolution

Apr 03, 2023
858.13 kB
Publicly accessible
Using laboratory slide-hold-slide experiments, at temperatures from 22 to 200 degrees C, to examine effects of fracture reactivation and quasi-static loading on the evolution of fluid transport properties of simulated fractures in Westerly granite. At all temperatures, the in-plan...
Authors
Lockner, D. et al United States Geological Survey
geothermalenergyutah forgehydraulic transmissivityfluid-rock interactionsshear fracturessealinggranite

Utah FORGE: Report on the Thermal Properties of Wells 16A(78)-32 & 58-32 Granite

May 04, 2021
2.71 MB
Publicly accessible
This is a report from Metarock Laboratories on the thermal properties of Utah FORGE wells 16A(78)-32 & 58-32 granite. The report includes pictures of core samples, core details for the samples (where the sample was taken and the size of the sample), sample thermal expansion test r...
Authors
Laboratories, M. et al Energy and Geoscience Institute at the University of Utah
geothermalutah forgeegswell 16a78-32 granite thermal propertieswell 58-32 granite thermal propertiesutah forge granite thermal propertieswell 58-32 granitewell 16a78-32 graniterock thermal propertiesmetarock reportwell 58-32well 16a78-32granite thermal propertiesthermal expansiontestteststestinggranitesamplecore samplereportcore datahydrostaticradial velocitymeasurement

Utah FORGE: Final Topical Report 2018

Apr 07, 2018
173.06 MB
Publicly accessible
This is the final topical report for the Phase 2B Utah FORGE project, which is located near Roosevelt Hot Springs, Utah. This PDF format report details results associated with the conceptual geologic model, deep well 58-32, rock geomechanics, reservoir temperatures, seismic survey...
Authors
Moore, J. et al Energy and Geoscience Institute at the University of Utah
geothermalenergyforgeutah forgeroosevelt hot springsutah forge phase 2butah forge 2b final reportutah forge final reportutah forge 2bconceptual geologic modelgeologystructuralsoil gas surveyseismic reflectiontemperature profilewell 58-32geomechanical propertiesstress analysisseismic monitoringmicroseismicityinduced seismicityseismicitytemtransient electromagneticspermeabilitypetrology cuttingsco2hecarbon dioxideheliumismpinduced seismicity mitigation planenvironmental impact assessmenttechno-economic assessmentoutreachgeophysicswellpetrologyhydrochemistryfracturesgravitypermittinginfrastrutureseismic mitigationenvironmental assessmentrock stressgeomechanicssoil gasdfnconstructionquaternary faultsutahegsmilford

Utah FORGE: Well 58-32 Stimulation Conference Paper and Data

Apr 24, 2019
1.8 MB
Publicly accessible
The U.S. Department of Energy's (U.S. DOE) Frontier Observatory for Research in Geothermal Energy (FORGE) is a field laboratory that provides a unique opportunity to develop and test new technologies for characterizing, creating and sustaining Enhanced Geothermal Systems (EGS) in ...
Authors
Best, S. Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgeopen hole stimulationwell 58-32 stimulationwell 58-32utah geothermalgrgegsdisccrete fracture flowreservoir stimulationstimulationhydraulic fracturingphase 2cforgepressureflowbackratetemperaturehydraulicflowutahopen-holemilfordroosevelt hot springspre-processedupper perforationlower perforationmicroseismicitydasdistributed acoustic sensinggeophysics

Utah FORGE: Well 16B(78)-32 Extended Dual Well Circulation Testing Fiber Optic Monitoring Report August 2024

Aug 30, 2024
10.95 MB
Publicly accessible
This report documents the post-hydraulic fracturing extended circulation test between Utah FORGE wells 16A and 16B conducted in August 2024. In well 16B, fiber optic measurements of Rayleigh frequency shift distributed strain sensing (RFS-DSS) and distributed temperature sensing ...
Authors
Jurick, D. et al Neubrex Energy Services (US), LLC
geothermalenergycirculation testscross well circulationfiber opticsrfs dssdtsstrain changethermal sluggingthermal strainpltproduction logging toolutah forgeegsstimulaitonhydraulic fracturingdssdistributed temperature sensingdistributed strain sensingfiber optic monitoringprocessed datatechnical reportneubrexgeophysics16b78-32

Utah FORGE 2-2404: Application of Advanced Techniques for Determination of Reservoir-Scale Stress State 2024 Annual Workshop Presentation

Aug 28, 2024
83.22 MB
Publicly accessible
This is a presentation on the Application of Advanced Techniques for Determination of Reservoir-Scale Stress State at FORGE by the University of Oklahoma, presented by Ahmad Ghassemi. This video discusses how magnitude and orientation of natural in-situ principal stresses at dept...
Authors
Ghassemi, A. et al Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgein-situ stressreservoir stress stateuniversity of oklahomadfitwellbore stressnormal-strike-slip faultgeomechanicscore testingvideopresentationegs

Utah FORGE: Groundwater Data

Jul 20, 2016
621.85 kB
Publicly accessible
This submission includes two modeled drawdown scenarios with new supply well locations, a total dissolved solids (TDS) concentration grid (raster dataset representing the spatial distribution of TDS), and an excel spreadsheet containing well data.
Authors
Moore, J. Energy and Geoscience Institute at the University of Utah
geothermalmilfordutahegsforgegroundwaterdrawdownwellsupplytdsconcentrationgeochemistrywellsconcentrationsmodelaquifertesttransducerdataflow ratescenariowater tablemodelledpredictedpotentialgeospatial dataarcgisgisshapefileshape fileutah forgelocationwell locationreservoirsupply wellroosevelt hot springsresourcecharacterizationwell data
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