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Data for Uncontained Ruptures Reduce Energetics of Triggered Seismicity: Laboratory Fault Reactivation Experiments

Apr 13, 2026
43.25 MB
Publicly accessible
The dataset contains raw mechanical data from laboratory fault reactivation experiments on pre-stressed granite/granitoid samples, along with experimental parameters and MATLAB processing code for data deduction. The raw time-series data were recorded using a triaxial-shear appara...
Authors
Elsworth, D. et al Pennsylvania State University
injection-induced seismicityfault pre-stressseismic moment scalingrupture regimesinduced seismicitytriggered seismicityfault reactivationfluid injectionearthquake magnitudeforecastingrupture mechanicscontained ruptureuncontained ruptureseismic momentlaboratory experimentsraw datatriaxial sheargranitegranitoidgeomechanicsshear displacementaxial displacementmatlab

Utah FORGE: Laboratory Shear Experiments Linking Fault Roughness, Friction, Permeability, and P-Wave Characteristics

Aug 20, 2025
23.22 GB
Publicly accessible
This dataset contains results from five laboratory shear experiments on gneiss and granitoid samples from the Utah FORGE site, conducted at Penn State University. The experiments investigate links between fault surface roughness, frictional behavior, permeability, and P-wave acous...
Authors
Eijsink, A. et al Pennsylvania State University
geothermalenergyfrictionroughnessutah forgeegslaboratory datamodeled datashear experimentsfault mechanicspermeabilityp-waveacoustic transmissivityfault roughnessrate-and-state frictionbiaxial deformationgneissgranitoidoptical profilometrykeyencersfit3000mechanical dataacoustic datafault zone propertiesgeomechanicsrock physicsgeothermal reservoir characterization

Fallon FORGE: Analogue Outcrop Samples

Mar 12, 2018
1.94 MB
Publicly accessible
Compilation of results for mechanical and fluid flow properties of analogue outcrop samples experimental data for compressional and shear wave velocities, tensile strengths, and compressive strengths. Outcrop location and sample orientation data are documented in a separate csv file.
Authors
Blankenship, D. et al Sandia National Laboratories
geothermalenergyforgeegsfallonnevadageologyanaloguehand samplesvetted-nooutcropmechanicsnv

Community Geothermal: Mechanical, Electrical, and Plumbing Design Report and Drawings Wallingford, CT

Jul 31, 2024
4.85 MB
Publicly accessible
Included here are the mechanical, electrical, and plumbing design report and drawings for the proposed community geothermal system at an affordable housing complex in Wallingford, Connecticut. The report and drawings were developed by LN Consulting, in partnership with the Univers...
Authors
Donahue, I. Connecticut Department of Energy and Environmental Protection (CT DEEP)
geothermalmechanicalelectricalplumbingdesignconnecticutaffordable housingheating and coolingcommunity geothermaldrawingsreportgeothermal systemtechnologyequipmentheat pumpwater source heat pumpborehole fieldgldengineeringwallingfordcommgeo

Utah FORGE: Direct Shear Tests on Saturated Sierra White Granite Joints at Elevated Temperatures

Nov 24, 2025
2.38 MB
Publicly accessible
This dataset contains results from laboratory direct shear experiments performed on tension-induced fractures in Sierra White granite under saturated conditions at target temperatures of 50 C and 100 C. The data were collected using a custom water-pressurized chamber equipped with...
Authors
Han, K. et al Purdue University
geothermalenergyutah forgesaturationgranitesierra white granitelab testdirect shear testshear strengthshear stressgeophysicsp-waves-waveelastic wave propagationegslaboratory datafracturesdirect shearraw datageomechanicssaturated fracturesshear displacementeffective normal stresspore pressureultrasonic measurementsgeophysical responserock mechanicsstimulation

Utah FORGE: Results of Direct Shear Tests on Saturated Joints in Sierra White Granite

Dec 31, 2022
1.18 MB
Publicly accessible
This dataset includes an Excel file with the results of direct shear tests to investigate the mechanical and geophysical response of saturated joints. Tests were conducted on induced tension-fractured Sierra White granite joints in a custom water pressurized chamber. The preparati...
Authors
Han, K. et al Purdue University
geothermalenergyutah forgesaturationrock saturationgranitesierra white granitelab testdirect shear testshear strengthshear stressgeophysicsseismic wavep-wavegeologyexcelprocessed data

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 5-2565: Final Report on the Evolution of Permeability and Strength Recovery of Shear Fracture Under Hydrothermal Conditions

Aug 24, 2025
3.52 MB
Publicly accessible
This report discusses the results of research on the ability to create and/or reactivate and subsequently sustain fracture systems which are strongly influenced by complexly coupled mechanical (M) and chemical (C) processes in reservoirs forced from equilibrium by hydraulic stimul...
Authors
Jeppson, T. et al United States Geological Survey
geothermalenergyutah forgeegsenhanced geothermal systemsfluid-rock interactionsthmc processesfracture evolutionusgsfracturesgeothermal resorvoirsfracture reactivationthmcmechanicalchemicalhydraulic stimulationthermal drawdownfinal reporttechnical report

Flow and Geomechanical Modeling for the VESTA Project

Oct 07, 2025
705.82 MB
Awaiting release
This dataset contains flow and geomechanical modeling results developed for the VESTA project, which investigates high-temperature aquifer thermal energy storage (ATES). Both generic and site-specific models were constructed to evaluate reservoir thermal and mechanical performance...
Authors
Zhang, Y. and Rutqvist, J. Lawrence Berkeley National Laboratory
geothermalenergyhigh-temperature aquifer thermal energy storagecoupled thermal-hydrological-mechnical modelvestaaquifer thermal energy storageatesht-atestough-flactoughitough2thmgeomechanical modelingflow simulationheat transportberngeneric modelgroundwater flowpressure distributiontemperature profilesmodeled datastrainpermeabilityflac3dreservoir simulationates simulation

Community Geothermal: Community Thermal Energy Network Report and Design Drawings Carbondale, CO

Sep 30, 2024
16.44 MB
Publicly accessible
This dataset provides an overview of the design, development, and technical specifications of for a community-scale geothermal heating and cooling system in Carbondale, Colorado. This thermal energy network (TEN) within the town's Three-Two Zero Energy District (32ZED) is part of ...
Authors
Fox-Rubin, J. Clean Energy Economy for the Region (CLEER)
geothermalenergycommgeocase studydesign drawingsretrofitthermal energy networkten32zedtechnical reportcommunity engagementambient temperature loopborefieldhigh temperature loopmechanicalelectricaldesignsspecificationsatlhtlpumpsheat pumpsblueprintscarbondalecolorado

Utah FORGE 5-2557: Final Report and Presentation for the Role of Fluid and Temperature in Fracture Mechanics and Coupled THMC Processes for Enhanced Geothermal Systems

Nov 30, 2025
163.74 MB
Publicly accessible
This contains a final technical report and closeout presentation recording summarizing the results from Utah FORGE Project 5-2557 on the role of fluid pressure and temperature in fracture mechanics and coupled thermo-hydro-mechanical-chemical (THMC) processes relevant to enhanced ...
Authors
Pyrak-Nolte, L. Purdue University
geothermalenergythermo-hydro-mechanical-chemicalthmcutah forgeegstechnical reportlaboratory experimentstheoretical developmentsnumerical simulationscirculation testsfracture slippermeability evolutionseismicaseismicmoose farmfriction theoryaijoint inversion

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

Geocellular Model of Mt. Simon Sandstone for University of Illinois at Urbana-Champaign DDU feasibility study

Dec 31, 2018
111.49 MB
Publicly accessible
The geocellular model of the Mt. Simon Sandstone was constructed for the University of Illinois at Urbana-Champaign DDU feasibility study. Starting with the initial area of review (18.0 km by 18.1 km [11.2 miles by 11.3 miles]) the boundaries of the model were trimmed down to 9.7 ...
Authors
Damico, J. University of Illinois
geothermalenergygeocellular modelingmt. simon sandstoneillinois basinddudeep direct-use3-duniversity of illinois at urbana champaignfeasibilitycharacterizationillinoisstructuralgeologygeologicmodeldensityporositypermeabilitythermal conductivityheat capacitythicknessdepthst. peterthermalhydrologicmechanicalpetrophisicalproperties3dreservoir

Geocellular model of St. Peter Sandstone for University of Illinois at Urbana-Champaign DDU Feasibility Study

Dec 31, 2018
68.79 MB
Publicly accessible
The geocellular model of the St. Peter Sandstone was constructed for the University of Illinois at Urbana-Champaign DDU feasibility study. Starting with the initial area of review (18.0 km by 18.1 km [11.2 miles by 11.3 miles]) the boundaries of the model were trimmed down to 9.7 ...
Authors
Damico, J. University of Illinois
geothermalenergyst. peter sandstoneillinois basinddudeep direct-useuniversity of illinois at urbana-champaign3-dgeocellular modelingfeasibilitycharacterizationillinois3dstructuralgeologymodelreservoirgeologicthermalhydrologicmechanicalpropertiespetrophysicalthermal conductivityspecific heat capacityheat capacityporositydensitypermeabilitythicknessdepthmt simon

A Thermal-Hydrological-Chemical Model for the EGS Demonstration Project at Newberry Volcano, OR

Jan 30, 2012
Size unavailable
Publicly accessible
Newberry Volcano in Central Oregon is the site of a Department of Energy funded Enhanced Geothermal System (EGS) Demonstration Project. Stimulation and production of an EGS is a strong perturbation to the physical and chemical environment, giving rise to coupled Thermal-Hydrologic...
Authors
Sonnenthal, E. et al National Energy Technology Laboratory
geothermalnewberryoregonegsenhanced geothermal systemnewgenthermalhydrologychemicalmodelcross-sectionsstimulationinjectionhydrologicaldemonstrationmechanical

Thermal-Hydrological-Mechanical Modelling of Stockton University Reservoir Cooling System, Fine Scale Stress Test Modelling

Feb 22, 2021
132.27 MB
Publicly accessible
Mesh, properties, initial conditions, injection/withdrawal rates for modelling thermal, hydrological, and mechanical effects of fluid injection to and withdrawal from ground for Stockton University reservoir cooling system (aquifer storage cooling system), Galloway, New Jersey, fo...
Authors
Smith, J. et al Lawrence Berkeley National Laboratory
geothermalcoolingthermal-hydrological-mechanicalmodelingground sourcestress teststress modelingmodelstressinjectionwithdrawalfluidsimulationaquifer storage cooling systemreservoir cooling systemstockton universitynew jerseygeothermal coolingcfdflow simulationfea

Utah FORGE 2-2439v2: Report on Predicting Far-Field Stresses Using Finite Element Modeling and Near-Wellbore Machine Learning for Well 16A(78)-32

Aug 30, 2024
973.4 kB
Publicly accessible
This report presents the far-field stress predictions at two locations along the vertical section of Utah FORGE Well 16A (78)-32 using a physics-based thermo-poro-mechanical model. Three principal stresses in far-field were obtained by solving an inverse problem based on the near-...
Authors
Lu, G. et al University of Pittsburgh
geothermalenergyutah forgein-situ stress estimationphysics-based modelingfinite element methodmachine learning modelthermo-poro-mechanical effectwell loggingvelocity-to-stress relationshipmachine learningfemreporttechnical report16a78-32mlegs2-2439v2principal stressstress predictionfar-fieldpre-cooling

Thermal-Hydrological-Mechanical Modelling of Stockton University Reservoir Cooling System, Large Scale Grid

Feb 26, 2021
248.07 MB
Publicly accessible
Mesh, properties, initial conditions, injection/withdrawal rates for modeling thermal, hydrological, and mechanical effects of fluid injection to and withdrawal from ground for Stockton University reservoir cooling system (aquifer storage cooling system), Galloway, New Jersey, on ...
Authors
Smith, J. et al Lawrence Berkeley National Laboratory
geothermalcoolingthermal-hydrological-mechanicalmodelingground sourcesimulationflowcfdflow simulationmodelreservoir coolinginjectionreservoir cooling systemaquifer storage cooling systemgroundground coolinggeothermal coolingreservoirnew jerseystockton universitywithdrawalfea

Stability of Elastomers Subjected to Geothermal Well-Like Conditions

Aug 10, 2014
1.45 MB
Publicly accessible
The aim of this study is to understand how commercially available elastomers perform under geothermal well-like conditions and make recommendations to the community based on these results. This poster highlights the mechanical performance of several elastomers (including EPDM, Vit...
Authors
Redline, E. et al Sandia National Laboratories
geothermalelastomershigh temperaturedownholeperformancewello-ring

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

SMP Preparation, Programming, and Characterization

Oct 01, 2021
1.04 MB
Publicly accessible
The problem of loss circulation in geothermal wells is inherently challenging due to high temperatures, brittle rocks, and presence of abundant fractures. Because of the inherent challenges in geothermal environments, there are limitations in selecting proper lost circulation mate...
Authors
Salehi, S. et al University of Oklahoma
geothermalenergylost circulationfracture sealingshape memory polymerdiscrete element methodsmodelingeconomicdrillingtechnologylost circulation materiallcmsmpprocessed datacfdcomputational fluid dynamicsdem

Geomechanical Modeling for Thermal Spallation Drilling

Aug 24, 2011
382.95 kB
Publicly accessible
Wells for Engineered Geothermal Systems (EGS) typically occur in conditions presenting significant challenges for conventional rotary and percussive drilling technologies: granitic rocks that reduce drilling speeds and cause substantial equipment wear. Thermal spallation drilling,...
Authors
Walsh, S. et al Lawrence Livermore National Laboratory
geothermalgeomechanical modelingthermal spallation drillingengineered geothermal systemsegsgeodynnumerical modeling

Utah FORGE 5-2557: Trixial Shear and Wellbore Breakout Tests Report and Data

Apr 19, 2023
2.96 MB
Publicly accessible
Included are a report and data from triaxial shear tests on simulated Sierra White fault gouge and a borehole stimulation experiment. This serves as a progress report for the Role of Fluid and Temperature in Fracture Mechanics and Coupled Thermo-Hydro-Mechanical-Chemical (THMC) P...
Authors
Choens, C. and Yoon, H. Sandia National Laboratories
geothermalenergyutah forgetriaxial shear testwellbore breakout testsierra white graniteegsenhanced geothermal system5-2557snlpurduesandia national laboratoriesborehole stimulationexperimental designraw databorehole breakoutfriction testgeomechanicsslip mechanismsaxial strain

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

Microhole drilling technology utilizing a golden section search algorithm

Jun 23, 2021
812.35 MB
Publicly accessible
A fundamental issue in microhole drilling is that delivering high weight-on-bit (WOB), high torque rotational horsepower to a conventional drill bit does not scale down to the hole sizes necessary to realize the envisioned cost savings An optimization algorithm called a golden sec...
Authors
Su, J. et al Sandia National Laboratories
geothermalpercussive hammerweight-on-bitoptimizationmicroholesslimholesdrillingexplorationmonitoringtechnical assessmentfeasibilitywobgssgolden section searchalgorithmblue canyon domenew mexico tech energetic materials research and testing centersocorronew mexico
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