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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 5-2557: Role of Fluid and Temperature in Fracture Mechanics and Couples THMC Processes for Enhanced Geothermal Systems 2024 Annual Workshop Presentation

Aug 13, 2024
111.95 MB
Publicly accessible
This is a presentation on the Role of Fluid and Temperature in Fracture Mechanics and Couples THMC Processes for Enhanced Geothermal Systems by Purdue University, presented by Laura Pyrak-Nolte. This video slide presentation describes the development and validation of a macroscopi...
Authors
Pyrak-Nolte, L. Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgeperdue universityfalconthmcmacroscopicdeformationfrictionseismicaseismicchemical reactionsx-ray microscopefracturespresentationegsvideoannual workshop

Utah FORGE 5-2557: Fluid and Temperature in Fracture Mechanics and Coupled THMC Processes 2025 Workshop Presentation

Sep 18, 2025
106.89 MB
Publicly accessible
This is a presentation on the Role of Fluid and Temperature in Fracture Mechanics and Coupled Thermo-Hydro-Mechanical-Chemical (THMC) Processes for Enhanced Geothermal Systems project by Purdue University, presented by Distinguished Professor of Physics & Astronomy, Dr. Laura J. P...
Authors
Pyrak-Nolte, L. Purdue University
geothermalenergyutah forgeegs2025 annual workshopfracture mechanicsthmcfluid-rock interactionsrate-and-statefrictioncoulomb failureseismicaseismicgeomechanicspresentationpresentation recordingpresentation slidesreport

Utah FORGE: 2019 ARMA Overview Slide Presentation

Aug 17, 2019
10.13 MB
Publicly accessible
This is an overview presentation of the Utah FORGE project given by Joseph Moore, Ph.D., at the 2019 American Rock Mechanics Associate meeting. It details the state of the Utah FORGE project at on 8/17/2019.
Authors
Moore, J. Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgeforgeamra slidesutah forge presentation2019 amra presentationegsproject overviewoverviewcharacteristicscriteriageologygeologic overviewwell 58-32stratigraphylithologyfracturesfmi logstressinjectionstimulationmonitoringinstrumentationequipmentfailureactivities

Utah FORGE 5-2615: Final Report for the Experimental Determination and Modeling-Informed Analysis of Thermo-Poromechanical Response of Fractured Rock

Jun 30, 2025
6.17 MB
Publicly accessible
This is the final technical report documenting laboratory experiments and modeling conducted to characterize the thermo-poromechanical behavior of fractured crystalline rocks for application to Utah FORGE. The report includes measurements of poroelastic and thermo-poroelastic prop...
Authors
Ghassemi, A. The University of Oklahoma
geothermalenergyutah forgeegslaboratory experimentstechnical reportthermo-poromechanicalfracturingporoelasticthermo-poroelasticpermeability evolutionhydraulic fracturedfitmodeling resultsstressfracture mechanicsgeomechanicsblock-scalebiot effective stressclosure pressurethermal stresstransverse fracturesstimulation

Finite Element Analysis (FEA) for Water-Foam Fracturing of Granite Rock

May 04, 2021
11.74 GB
Publicly accessible
In addition to the foam data that were obtained from literature and that were collected from the current study, simulation data was also generated from finite element analysis (FEA) conducted in this study using COMSOL Multiphysics software. The FEA models were built to simulate t...
Authors
Thakor, V. et al Temple University
finite element analysisenhanced geothermal systemfoam fracturinggraniteegsgeothermalenergysimulationfeamodelcomsolsolid mechanicsfoam fracturing fluidfoamfracturing fluid

Simulating Complex Fracture Systems in Geothermal Reservoirs Using an Explicitly Coupled Hydro-Geomechanical Model

Jan 01, 2011
6.5 MB
Publicly accessible
Low permeability geothermal reservoirs can be stimulated by hydraulic fracturing to create Enhanced (or Engineered) Geothermal Systems (EGS) with higher permeability and improved heat transfer to increase heat production. In this paper, we document our effort to develop a numerica...
Authors
Carrigan, C. et al Lawrence Livermore National Laboratory
geothermalrock mechanicshydraulic fracturingenhanced geothermal systemegssimulationhydrohydrofrackingflowmodelmodelingreservoirfracking

Utah FORGE 5-2557: Fluid and Temperature in Fracture Mechanics and Coupled THMC Processes 2023 Annual Workshop Presentation

Sep 08, 2023
64.42 MB
Publicly accessible
This is a presentation on the Role of Fluid and Temperature in Fracture Mechanics and Coupled Thermo-Hydro-Mechanical-Chemical (THMC) Processes for Enhanced Geothermal Systems project by Purdue University, presented by Distinguished Professor of Physics & Astronomy, Laura J. Pyrak...
Authors
Pyrak-Nolte, L. Purdue University
geothermalenergyannual workshop2023utah forgeegsrupture alogorithmwave motion algorithmmachine learninggeophysicsfalconthmcufalconsimulatorjoint inversioninjectionfracturingshearingpermeability evolutionpore pressure diffusiondynamic crack evolutionslipwave generationpresentation

Thermal Drawdown Induced Flow Channeling in Fractured Geothermal Reservoirs: Rock Mechanics and Rock Engineering

Nov 15, 2015
16.88 MB
Publicly accessible
We investigate the flow-channeling phenomenon caused by thermal drawdown in fractured geothermal reservoirs. A discrete fracture network-based, fully coupled thermal "hydrological" mechanical simulator is used to study the interactions between fluid flow, temperature change, and t...
Authors
Fu, P. et al Lawrence Livermore National Laboratory
geothermalthermal drawdownflow channelingthermomechanical couplingreservoir simulationstimulationegsenhanced geothermal reservoirsexplosive fracturing

Utah FORGE 2-2404: The University of Oklahoma, Application of Advanced Techniques for Determination of Reservoir-Scale Stress State at Utah FORGE Final Report

Jun 30, 2025
3.73 MB
Publicly accessible
This final report summarizes the work done on Utah FORGE project 2-2404. The project aimed to develop a methodology integrating alternative well bore and core-based methods and reservoir-scale focal mechanisms (FM) to better estimate the reservoir stress at FORGE. The project obje...
Authors
Ghassemi, A. The University of Oklahoma
geothermalenergyutah forgeegswell borecore-basedfocal mechanismsreservoir stressfinal reporttechnical reportanelastic strain recoverydifferential strain curvefracture mechanicsdrilling-induced cracksnear-wellbore stress

Shear Induced Permeability Test: Stripa Granite Temperature Pressure and Displacement Data

Jun 21, 2014
12.32 MB
Publicly accessible
Spreadsheet containing the raw measured data, calibrated data, and brief explanation of data for Test1 Stripa Granite Geomechanical/Geochemical Test. Stress on fracture ~20.7 MPa.
Authors
Kneafsey, T. Lawrence Berkeley National Laboratory
geothermalexperimentalegsfracturechemistryaperturemineralogystripagranitemechanics

Shear Induced Permeability Test: Stripa Granite X-Ray CT Files and Explanation

Jan 21, 2014
109.78 MB
Publicly accessible
This folder contains X-ray CT images and an explanation related to the shear induced permeability testing of Stripa granite
Authors
Kneafsey, T. Lawrence Berkeley National Laboratory
geothermalstripagranitex-ray ctegsxrctcorescore sampleslogscomputed tomographyscancatcomputerized axial tomographytomographicimagingrock propertiesrock mechanics

Utah FORGE: Temperature-Dependent Fracture Seismicity from Fluid Injection Experiments

Feb 29, 2024
4.34 MB
Publicly accessible
This dataset contains experimental data from fluid injection experiments conducted to investigate the influence of temperature on fracture seismicity. The experiments were performed on granite samples from Utah FORGE. The samples were prepared with a 30-degree inclined fracture an...
Authors
Wang, J. et al Pennsylvania State University
geothermalenergyegstemperaturefracture seismicityfluid injectionshear stressdisplacementpore pressureexperimental geomechanicsgeomechanicshigh temperature rock mechanicsraw dataseismicitygraniteutah forgefracture mechanicsstimulation

Utah FORGE 3-2514: Strain Sensing Array for Deformation Characterization 2024 Annual Workshop Presentation

Aug 13, 2024
94.34 MB
Publicly accessible
This is a presentation on the Strain Sensing Array to characterize deformation at the FORGE site project by Clemson University, presented by Lawrence Murdoch. The project's objective was to evaluate the feasibility of measuring and interpreting tensor strain data to improve the pe...
Authors
Murdoch, L. et al Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgestrain sensingtensor strainmetersstrainrock mechanicsstrain tensor inversionrock deformationclemson video2024 utah forge rdclemsonpresentationegs

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

Utah FORGE: LBNL Status Report on the VEMP Tool 2024

Feb 16, 2024
492.57 kB
Publicly accessible
This report describes the modifications made to the Vertical Electromagnetic Profiling (VEMP) borehole tool, currently on loan to Lawrence Berkeley National Laboratory (LBNL) from Japan's Geothermal Energy Research and Development Co., Ltd. (GERD), during its refurbishment. It inc...
Authors
Wilt, M. et al Lawrence Berkeley National Laboratory
geothermalenergyutah forgeegsvempvertical electromagnetic profilinglbnltechnologygeophysicselectromagneticevaluationreporttool statusmagnetic fieldfield testscalibrationborehole tool

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 2-2404: Determination of Reservoir-Scale Stress State Presentation Slides

Jul 31, 2022
4.56 MB
Publicly accessible
This PowerPoint summarizes the integration of multiple approaches and data to constrain wellbore stress models at Utah FORGE. This stress determination used faulting theory, breakouts, and drilling-induced cracks detected in image logs. Wellbore stress profiles were established f...
Authors
Ghassemi, A. et al The University of Oklahoma
geothermalenergyfracture mechanicsfocal mechanismanelastic strain recoverydfitwellborestress characterizationstress modelin-situ stresspresentationslidesinduced seismicityreservoir stressutah forgeegsimage logsfaulting theorybreakoutsdrilling-induced cracks

Utah FORGE 5-2615: Determination and Analysis of Thermo-poromechanical Response of Fractured Rock 2024 Annual Workshop Presentation

Sep 01, 2024
63.48 MB
Publicly accessible
This is a presentation on the Determination and Modeling-Informed Analysis of Thermo-poromechanical Response of Fractured Rock for Application to FORGE by the University of Oklahoma, presented by Ahmad Ghassemi. This video presentation discusses how to improve understanding and co...
Authors
Ghassemi, A. Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgeuniversity of oklahomatpmthermo-hydro-mechanicalrock mechanicsporositythermoporomechanicaldfitreservoir stress modellingrock stressmicro-seismicityegsvideopresentation

Utah FORGE 2-2446: Connecting In Situ Stress and Wellbore Deviation to Near-Well Fracture Complexity using Phase-Field Simulations

Jan 30, 2025
10.44 MB
Publicly accessible
This report presents a series of numerical experiments investigating the relationships among near-well fracture complexity, in situ stress conditions, and wellbore deviation. Using a phase-field modeling approach, the study explores how factors such as stress regimes, wellbore ori...
Authors
Cusini, M. and Fei, F. Lawrence Livermore National Laboratory
geothermalenergyutah forgephase fieldnumerical simulationnear wellbore fracture nucleationegsnear-wellfracture complexityin situ stresswellbore deviationphase-field modelingnumerical solutionsfracture nucleationgeos modelingstress regimesfracture propagationrock mechanicstechnical report

Utah FORGE: Direct Shear Test Data for Investigating Seismic Precursors to Shear Failure of Fractures

Jun 11, 2024
3.13 MB
Publicly accessible
This dataset includes results of direct shear tests to investigate the mechanical and geophysical response of dry and saturated fractures in Indiana limestone and Sierra White granite. Direct shear tests were performed on tensile-induced fractures in Indiana limestone and Sierra W...
Authors
Han, K. et al Purdue University
geothermalenergyutah forgesaturationgranitesierra white granitelab testdirect shear testshear strengthshear stressgeophysicsp-waves-waveexcelprocessed dataelastic wave propagationegslaboratory datarmreshearfracturesindiana limestonetransducer

Utah FORGE: Stress Ratio Dependence of Ultrasonic Anisotropy in Well 16B(78)-32 Core

Apr 07, 2025
22.48 MB
Publicly accessible
This dataset contains high-pressure ultrasonic measurements on a foliated granitoid core from Well 16B(78)-32 at the Utah FORGE site. Ultrasonic P-waves and two orthogonal S-waves were measured concurrently parallel and perpendicular to the rock fabric. All measurements were mad...
Authors
Lisabeth, H. and Savage, H. Lawrence Berkeley National Laboratory
geothermalenergygeomechanicsanisotropyutah forgeegsultrasonic velocityseismic anisotropystress ratiohigh-pressurep-waves-wavethomsen parametersmicrofracturesfoliated granitoidconfining pressureucsccore analysisraw dataprocessed datavisualizationsrock mechanicsgeophysics

CO2 Push-Pull Single Fault Injection Simulations

Sep 21, 2017
24.3 MB
Publicly accessible
ASCII text files containing grid-block name, X-Y-Z location, and multiple parameters from TOUGH2 simulation output of CO2 injection into an idealized single fault representing a dipping normal fault at the Desert Peak geothermal field (readable by GMS). The fault is composed of a ...
Authors
Borgia, A. et al Lawrence Berkeley National Laboratory
geothermalenergyco2 injectionfault characterizationfault imagingseismic imagingegstough2gmsfracturespermeable flow pathspermeability characterizationidentificationcarbon dioxideinjectionproductionfault sensitivityfault systemfracture systemrock propertiesfluid mechanicspressure transientstimulationreservoir

Utah FORGE: Triaxial Direct Shear Results February 2025

Feb 28, 2025
1.18 GB
Publicly accessible
This dataset contains results from nine triaxial direct shear tests conducted by Los Alamos National Laboratory on samples from FORGE Well 16A(78)-32. The primary objectives of this work were to determine the shear strength in both intact and residual states, evaluate dilation aga...
Authors
Frash, L. et al Los Alamos National Laboratory
geothermalenergyutah forgetriaxial core testingtriaxial shear testingtriaxial testinglos alamoslanllawrence livermorecore testingcore fracture testinginjectiongeochemistryegsshear strengthtriaxialpermeabilityeffluent chemistrysurface roughnessprofilometryslickensidesdilationfracture compressibilityhigh temperaturetriaxial direct shearrock mechanicsstress-strain behaviorhydromechanical datalaboratory testinggeomechanicswell 16a78-32rock deformation

Simulation Tools for Modeling Thermal Spallation Drilling on Multiple Scales

Jan 01, 2012
633.76 kB
Publicly accessible
Widespread adoption of geothermal energy will require access to deeply buried resources in granitic basement rocks at high temperatures and pressures. Exploiting these resources necessitates novel methods for drilling, stimulation, and maintenance, under operating conditions that ...
Authors
Walsh, S. et al Lawrence Livermore National Laboratory
geothermalthermal spallation drillingnumerical modelingengineered geothermal systemsegsgranitic basement rocksfluid dynamicsheat transfergrain-scale thermomechanicsunified tool
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