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Utah FORGE: Discrete Fracture Network (DFN) Data

Jun 24, 2020
10.65 GB
Publicly accessible
The FORGE team is making these fracture models available to researchers wanting a set of natural fractures in the FORGE reservoir for use in their own modeling work. They have been used to predict stimulation distances during hydraulic stimulation at the open toe section of well 1...
Authors
Finnila, A. and Podgorney, R. Golder Associates Inc.
geothermalenergyutah forgeforgeutah geothermalreservoirengineeringhydraulicfracturingegsdiscrete fracture networkdfnfracture modellingmilfordmodelingfracturehydroshearinflatedpore pressurestressfracmanstimulationdrillingpressuregoldersimulationreservoir planninghydraulic fracturing

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: Well 16B(78)-32 Reinterpretation of Thrubit FMI Log

May 23, 2023
437.72 kB
Publicly accessible
This dataset contains a reinterpretation of the trip 3, Thrubit FMI log from Utah FORGE well 16B(78)-32, covering measured depths from 6,254 to 10,839 feet. Acquired by Schlumberger on May 23, 2023, this version includes newly interpreted tensile drilling-induced fractures, in add...
Authors
Wray, A. and Hamilton, D. Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgewell16b78-3216bthrubit fmi logfmi logfmitrip 3 fmifmi reinterpretationtensile induceded fracturestensile fracturesfracturesinduced fracturesegsfromation microimagerborehole imagingfracture analysisschlumbergerthrubitsubsurface characterizationazimuthprocessed datainterpreted

Utah FORGE: Hydraulic Fracture Width Determination Using Stoneley Wave Pressure Testing and Electrical Borehole Scans

Oct 06, 2023
1 MB
Publicly accessible
This report provides insights into Utah FORGE well 58-32's hydraulic fractures. It utilizes both electrical borehole scans from Schlumberger's Formation Micro-scanner Image tool (FMI) and Stoneley waves from a borehole sonic tool. These methods are combined in a comprehensive work...
Authors
Hornby, B. Hornby Geophysical Services, LLC
geothermalenergyfmistonely wavesformation micro-scanner image toolhydraulic fractureshydraulic fractureelectric borehole scansfracturesutah forgeutah forge well fracturespressure testingutah forge fracture reportborehole sonic toolegsfracture widthreportschlumbergerwave analysisworkflowfracture characterization58-32reservoir characterization

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 3-2417: Fiber-Optic Geophysical Monitoring of Reservoir Evolution 2024 Annual Workshop Presentation

Aug 13, 2024
160.55 MB
Publicly accessible
This is a presentation on the Fiber-Optic Geophysical Monitoring of Reservoir Evolution by Rice University, presented by Jonathan Ajo-Franklin. This video slide presentation discusses the development of an end-to-end fiber-optic sensing approach for EGS to track the (1) initial zo...
Authors
Ajo-Franklin, J. et al Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgerice universityfracture creationegsconnected mechanically compliant fracturesflowing fracturesthmdasdas microseismicpresentationvideo

Utah FORGE 2-2446: Closing the Loop Between In-Situ Stress Complexity and EGS Fracture Complexity 2024 Annual Workshop Presentation

Aug 26, 2024
70.79 MB
Publicly accessible
This is a presentation on Closing the Loop Between In-Situ Stress Complexity and EGS Fracture Complexity by Lawrence Livermore National Laboratory, presented by Matteo Cusini. The video discusses the combination of high-fidelity simulations and true-triaxial block fracturing tests...
Authors
Cusini, M. et al Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgein-situ stressegs fractureegs fracturesfracturesrock fractureshydraulic fracturesegs stimulationsfracingminifracdiagnostic fracture injection teststress magnitudesstress directionslawrence livermore national labratoryllnlegs

Utah FORGE: Updated Discrete Fracture Network Model 2025

Jul 24, 2025
3.3 GB
Publicly accessible
The Utah FORGE 2025 v1 DFN (fracture model) includes 131 discrete planar fractures which were identified using combined site data sets to capture flow pathways between wells 16A(78)-32 and 16B(78)-32 following stimulation activities in 2022 and 2024. It also includes stochastic fr...
Authors
Finnila, A. WSP
geothermalenergyutah forgedfndiscrete fracture networkfracturesfracture modellingfracture geometrywell 16a78-32well 16b78-32fracturefracture positionfracture sizeprocessed datapositionorientationsizeupdateplanar fracturesegsreservoir characterization

Utah FORGE 3-2417: Simulations for Distributed Acoustic Sensing Strain Signatures as an Indicator of Fracture Connectivity

Jan 01, 2023
21.99 MB
Publicly accessible
This dataset encompasses simulations of strain signatures from both hydraulically connected and "near-miss" fractures in enhanced geothermal systems (EGS). The files and results are presented from the perspective of digital acoustic sensing's (DAS) potential to differentiate the t...
Authors
Ward-Baranyay, M. et al Rice University
geothermalenergyforgeutah forgeegsmilfordutahcomsoldfnmatlabsimulationnear-miss fracturedasdistributed acoustic sensingmodelingstrainfogmoregeophysicshydrogeomechanicssub-nanostraincodestimulation

Utah FORGE 4-2492: Design and Implementation of Innovative Stimulation Treatments to Maximize Energy Recovery 2024 Annual Workshop Presentation

Sep 16, 2024
113.88 MB
Publicly accessible
This is a presentation on the Design and Implementation of Innovative Stimulation Treatments to Maximize Energy Recovery Efficiency by The University of Texas at Austin, presented by Mukul M. Sharma. This video slide presentation discusses the following objectives: (1) to place fr...
Authors
Sharma, M. Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgeegswell stimulationfracfracingfractureshorizontal wellfracture networkfracture sizeflowfracture areafracture treatmentsdfnsubsurface modelhydraulic fracturesvideopresentation

Utah FORGE 5-2615: Shear Enhanced Permeability In a Granitoid Fracture Presentation Slides

Feb 28, 2024
2.51 MB
Publicly accessible
Provided here is a set of presentation slides detailing stress-dependent permeability in FORGE granitoid fractures and how fracture slip affects permeability. It outlines empirical correlations between permeability, stress, and fracture aperture, emphasizing that mechanically clos...
Authors
Ghassemi, A. and Ye, Z. University of Oklahoma
geothermalenergyutah forgeegsfacture slippermeabilitystress-dependent permeabilitygranitoid fracturefracture networkstimulationapertureinjectionflow testshear testreservoir stressreportdata analysis

Utah FORGE 3-2417: Fiber-Optic Geophysical Monitoring of Reservoir Evolution 2023 Annual Workshop Presentation

Sep 08, 2023
54.51 MB
Publicly accessible
This is a presentation on the Fiber-Optic Geophysical Monitoring of Reservoir Evolution at the Utah FORGE Milford Site project by Rice University, presented by Prof. Jonathan Ajo-Franklin. The project's objective was to develop an end-to-end fiber-optic sensing approach for EGS to...
Authors
Ajo-Franklin, J. et al Rice University
geothermalenergyannual workshop2023utah forgeegsdistributed fiber optic sensingdfosdasflowing fracturesfracture creationwell pairegs performancemechanically compliant fracturesend-to-endegs fracture model

Investigation of Stimulation-Response Relationships for Complex Fracture Systems in Enhanced Geothermal Reservoirs

Jan 01, 2011
7.34 MB
Publicly accessible
Hydraulic fracturing is currently the primary method for stimulating low-permeability geothermal reservoirs and creating Enhanced (or Engineered) Geothermal Systems (EGS) with improved permeability and heat production efficiency. Complex natural fracture systems usually exist in ...
Authors
Fu, P. et al Lawrence Livermore National Laboratory
geothermalenhanced geothermal systemegsdiscrete fracture flowmodelingreservoir stimulationstimulationhydraulic fracturing

Fully Coupled Geomechanics and Discrete Flow Network Modeling of Hydraulic Fracturing for Geothermal Applications

Jan 01, 2011
5.25 MB
Publicly accessible
The primary objective of our current research is to develop a computational test bed for evaluating borehole techniques to enhance fluid flow and heat transfer in enhanced geothermal systems (EGS). Simulating processes resulting in hydraulic fracturing and/or the remobilization of...
Authors
Fu, P. et al Lawrence Livermore National Laboratory
geothermalgeothermal reservoir modelinghydraulic fracturingdiscrete flow networkfluid flowheat transferenhanced geothermal systemegsnon-isothermal unsaturated flow and transportnuft code

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 Drill Core Fracture Analysis Images and Data

Jan 29, 2025
57.25 MB
Publicly accessible
This dataset contains drilling core data from well 16B(78)-32, including PDF documents with flattened core images annotated by feature type and core interval, as well as spreadsheets detailing feature morphologies by depth, planar feature measurements, and planar feature orientati...
Authors
Jones, C. Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgewell 16b78-32well 16b78-32 core16b78-3216b78-32 corecoredrilling corecore fracture analysiswell 16b78-32 core fracture analysisdrill core fracture analysisegsdrilling core datafracture stagescore imagesplanar featuresfeature morphologyfmicrystalline rockcore measurementsfracture characterizationstimulationimaging

Applications of Fractured Continuum Model to Enhanced Geothermal System Heat Extraction Problems

May 06, 2014
5.77 MB
Publicly accessible
This paper describes the applications of the fractured continuum model to the different enhanced geothermal systems reservoir conditions. The capability of the fractured continuum model to generate fracture characteristics expected in enhanced geothermal systems reservoir environm...
Authors
Kalinina, E. et al Sandia National Laboratories
geothermalsimulationegsheat extractionfracturefractured continuum modelfracture continuumfracture characteristicsreservoir environmenthorizontal wellsvertical wells

Application of Neutron Imaging to Investigate Flow through Fractures for EGS

Feb 01, 2013
605.12 kB
Publicly accessible
There is an ongoing effort at Oak Ridge National Laboratory to develop a unique experimental capability for investigating flow through porous and fractured media using neutron imaging techniques. This capability is expected to support numerous areas of investigation associated wit...
Authors
Polsky, Y. et al Oak Ridge National Laboratory
geothermalneutron imagingfracture flowegsneutron imaging fracture flowhigh pressurehigh temperaturenoninvasivegeochemistrymaterial effectsneutron

Utah FORGE 4-2492: Design and Implementation of Innovative Stimulation Treatments to Maximize Energy Recovery 2023 Annual Workshop Presentation

Sep 08, 2023
194.2 MB
Publicly accessible
This is a presentation on the Design and Implementation of Innovative Stimulation Treatments to Maximize Energy Recovery Efficiency at the Utah FORGE Site project by The University of Texas at Austin, presented by Professor Mukul M. Sharma. The project's objectives were to place f...
Authors
Sharma, M. The University of Texas at Austin
geothermalenergyannual workshop2023utah forgeegsfracture conductivityfracture diagnosticsconnectivityfluid circulationuniform injection profileideal fracture characteristicsstimulationthief zonesflowrateinjection pressurefracture geometryoptimizationenergy recoveryefficiency

Distributed Acoustic Sensing (DAS) of Strain at Earth Tide Frequencies: Laboratory Tests

Jan 24, 2018
1.09 GB
Publicly accessible
The solid Earth strains in response to the gravitational pull from the Moon, Sun, and other planetary bodies. Measuring the flexure of geologic material in response to these Earth tides provides information about the geomechanical properties of rock and sediment. Such measurements...
Authors
Coleman, T. and Becker, M. California State University
geothermalenergyearth tidedasdistributed acoustic sensingfiber optics sensorslow frequency straingeomechanicsmeasurementmatlabegslab testsfracturecharacterizationhydraulicstimulation strain

Utah FORGE 4-2492: Design and Implementation of Innovative Stimulation Treatments to Maximize Energy Recovery 2025 Workshop Presentation

Sep 18, 2025
274.17 MB
Publicly accessible
This is a presentation and materials on the Design and Implementation of Innovative Stimulation Treatments to Maximize Energy Recovery Efficiency at the Utah FORGE Site project by The University of Texas at Austin, presented by Professor Mukul M. Sharma. The project's objectives w...
Authors
Sharma, M. The University of Texas at Austin
geothermalenergyutah forgeegs2025 annual workshophydraulic fracturingstimulation designfracture networkcluster efficiencyreservoir connectivitygeothermal energyhorizontal wellsfracture optimizationpresentationpresentation recordingpresentation slidesreport

Seismic Analysis of Spatio-Temporal Fracture Generation During EGS Resource Development Deviatoric MT, Fracture Network, and Final Report

Sep 01, 2018
62.11 kB
Publicly accessible
This submission contains 167 deviatoric moment tensor (MT) solutions for the seismicity observed two years prior and three years post start of injection activities at The Geysers Prati 32 EGS Demonstration. Also included is a statistical representation of the properties of 751 fra...
Authors
Gritto, R. et al Array Information Technology
geothermalenergythe geysershigh temperature reservoirdeviatoric mt solutionsdeviatoricstresstensorcatalogmomentseismicityanalysisegsinjectioninducedmicroseismicityeventlocationshearstrainfracture networkfracture orientationfracture sizecaliforniacafaultfracturenetworkgeysersmicroseismichypocenterspassiveseismicmonitoringstimulationfinal reportinversionhydraulicfaultingearthquakegeophysicsgeophysical

EGS Collab Experiment 2: Earth Model Datasets

May 29, 2022
747.89 MB
Publicly accessible
The EGS Collab Project performed a series of tests to increase the understanding the response of crystalline rock mass to stimulations and fluid circulation to efficiently implement enhanced geothermal systems (EGS) technologies. The EGS Collab team created two underground testbed...
Authors
Neupane, G. et al Idaho National Laboratory
geothermalenergyegs collabegssurfsanford underground research facilityleadsouth dakotacollabraw dataprocessed datageologyconceptual model

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 7-3639: Design and Implementation of a Novel Multi-Frac Stimulation Concept 2024 Annual Workshop Presentation

Sep 02, 2024
36.97 MB
Publicly accessible
This is a presentation on the Design and Implementation of a Novel Multi-Frac Stimulation Concept by The University of Oklahoma, presented by Ahmad Ghassemi. This slide presentation video discusses the design and implementation of a reservoir stimulation concept improving near-wel...
Authors
Ghassemi, A. and Jeffery, R. Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgefracfracingstimulationwell stimulationmulti-fracproppingself-proppinghydraulic fracturesnatural fracturesmulti-stage fracturingegsvideopresentation
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