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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: Stress Logging Data

Mar 14, 2018
814.17 kB
Publicly accessible
This spreadsheet consist of data and graphs from deep well 58-32 stress testing from 6900 7500 ft depth. Measured stress data were used to correct logging predictions of in situ stress. Stress plots shows pore pressure (measured during the injection testing), the total vertical in...
Authors
McLennan, J. Energy and Geoscience Institute at the University of Utah
geothermalenergywell 58-32stress58-32 stressstress test58-32 stress data58-32 stress testutah forgeutahroosevelt hot springsutyoungs moduluspoisson ratiodynamicpressurepore pressuresh maxverticalhorizontalstress loglogginglogdataforgeegsrock propertiesrock propsgeomechanicswell datain situ stressresourcecharacterizationmilfordstress plot

Regional Slip Tendency Analysis of the Great Basin Region

Sep 30, 2013
200.66 MB
Publicly accessible
Slip and dilation tendency on the Great Basin fault surfaces (from the USGS Quaternary Fault Database) were calculated using 3DStress (software produced by Southwest Research Institute). Slip and dilation tendency are both unitless ratios of the resolved stresses applied to the f...
Authors
E., J. University of Nevada
geothermalslip tendencydilation tendencystress fieldsquaternary faultsgreat basinwalker lanebasin and rangefaultsfault systemshidden geothermal systemsstructural controlsegsconventionalexplorationshapefiledatageospatial data

Utah FORGE 2439: Machine Learning for Well 16A(78)-32 Stress Predictions September 2023 Report

Sep 28, 2023
3.69 MB
Publicly accessible
This task completion report documents the development and implementation of machine learning (ML) models for the prediction of in-situ vertical (Sv), minimum horizontal (SHmin) and maximum horizontal (SHmax) stresses in well 16A(78)-32. The detailed description of the experimental...
Authors
Mustafa, A. et al Battelle Memorial Institute
geothermalenergyutahforgegeomechanicsmachine learningffnnartificial neural networkannin-situ stressstress characterizationlabtuvtriaxialstressfeed forward artificial neural networkmlegsmodellingexploratory data analysiseda

Utah FORGE: Milford Triaxial Test Data and Summary from EGI labs

Mar 01, 2016
102.63 MB
Publicly accessible
Six samples were evaluated in unconfined and triaxial compression, their data are included in separate excel spreadsheets, and summarized in the word document. Three samples were plugged along the axis of the core (presumed to be nominally vertical) and three samples were plugged ...
Authors
Moore, J. Energy and Geoscience Institute at the University of Utah
geothermaltriaxialtestingegiforgeegsfracturestresscompressionpermeabilityutahmilfordtesthorizontalmooregnssampledataverticalgeomechanicsgeomechanicalutah forgecorestraincore dataresourcecharacterizationwell dataroosevelt hot springs52-21

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

Utah FORGE 2439: A Multi-Component Approach to Characterizing In-Situ Stress

Dec 13, 2022
201.16 MB
Publicly accessible
Core-based in-situ stress estimation, Triaxial Ultrasonic Velocity (labTUV) data, and Deformation Rate Analysis (DRA) data for Utah FORGE well 16A(78)-32 using triaxial ultrasonic velocity and deformation rate analysis. Report documenting a multi-component approach to characterizi...
Authors
Bunger, A. et al Battelle Memorial Institute
geothermalenergyutah forgein-situ stresslaboratorymodelingfield measurementtuvtriaxial ultrasonic velocitydeformation rate analysisdraweight of evidencewoeegsstress testcharacterizationwell datageophysicsforge16a78-32

Utah FORGE 2439: Well 16B(78)-32 Field-Test Data from Mini-Frac Tests

Jul 02, 2023
2.73 GB
Publicly accessible
This submittal includes the field-test data collected during stress tests conducted in the Utah FORGE 16B(78)-32 wellbore to measure/characterize the stresses in the geothermal reservoir. The type of stress test performed is referred to as a mini-frac test or a micro-frac test. Th...
Authors
Kelley, M. et al Battelle Memorial Institute
geothermalenergygeomechanicsutahforgeminifracstressin-situ stressegsmini-fracstress testgeophysical logimage logacoustic logsonic logfracturinghydraulic fracturingreservoir stressinjectioncaliper logstemperature logsxmac16b78-32baker hughespacker element pressureflowbackpacker element

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

Publications and Datasets from Play-Fairway Retrospective Analysis with Emphasis on Developing Improved Hydrothermal Energy Assessments

Feb 07, 2023
Size unavailable
Publicly accessible
Previous moderate and high-temperature geothermal resource assessments of the western United States utilized data-driven methods and expert decisions to estimate resource favorability. Although expert decisions can add confidence to the modeling process by ensuring reasonable mode...
Authors
Mordensky, S. et al United States Geological Survey
geothermalenergypfahydrothermalenergy assessmentresource assessmentretrospectivemachine learninggeosciencewestern usdata-drivenbias reductionfavorabilitymappingegslow tempprocessed dataresourcecharacterization

EGS Collab Experiment 1: In-situ observation of pre-, co and post-seismic shear slip preceding hydraulic fracturing

May 22, 2018
136.27 MB
Publicly accessible
Understanding the initiation and arrest of earthquakes is one of the long-standing challenges of seismology. Here we report on direct observations of borehole displacement by a meter-sized shear rupture induced by pressurization of metamorphic rock at 1.5 km depth. We observed the...
Authors
Guglielmi, Y. et al Lawrence Berkeley National Laboratory
geothermalenergyegsegs collabsurfsanford underground research facilityseismicinjection teststimulationslip vectorshearaxialdisplacementpressureborehole displacementdeformationsimfipprobeboreholee1-ipre-slipco-seismicslippost-seismicaftersliphydraulicfracturingin-situ

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

Newberry EGS Demonstration: Initial Project Report and Induced Seismicity Mitigation Plan, 2011

May 05, 2024
70.06 MB
Publicly accessible
This is the first project report and induced seismicity mitigation plan for the Newberry Enhanced Geothermal Systems (EGS) Demonstration project. The primary objectives of this first phase were to obtain necessary permits and comply with all regulations, including NEPA, communica...
Authors
Cladouhos, T. et al AltaRock Energy Inc
geothermalenergynewberryegsdemonstrationvolcanoaltarockoregongeologygeologic modelconceptual resource modelseismicityinduced seismicitymitigationmaximum magnitudein situ stresspermittingstimulationreservoir characterizationdrilling planwell testingrisk mitigationreporting

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

Preliminary Analysis of Stress in the Newberry EGS Well NWG 55-29

Jan 01, 2011
1.78 MB
Publicly accessible
As part of the planning for stimulation of the Newberry Volcano Enhanced Geothermal Systems (EGS) Demonstration project in Oregon, a high-resolution borehole televiewer (BHTV) log was acquired using the ALT ABI85 BHTV tool in the slightly deviated NWG 55-29 well. The image log rev...
Authors
Davatzes, N. and Hickman, S. National Energy Technology Laboratory
geothermalegsenhanced geothermal systemnewberryoregonnewgenstress analysiswell dataenhanced geothermal systemsstresspublicationmonitoring4d

Utah FORGE: Fault Reactivation Through Fluid Injection Induced Seismicity Laboratory Experiments

Jul 01, 2023
119.91 MB
Publicly accessible
Included are results from shear reactivation experiments on laboratory faults pre-loaded close to failure and reactivated by the injection of fluid into the fault. The sample comprises a single-inclined-fracture (SIF) transecting a cylindrical sample of Westerly granite. All expe...
Authors
Yu, J. et al Pennsylvania State University
energyinduced seismicityegsutah forgewesterly graniteraw datacodematlabfault activationinjection testpressureflow ratereactivationshearfluid

Utah FORGE: Fault Shear Reactivation Experimental Data for Fluid Injection-Rate Controls on Seismic Moment

Nov 07, 2023
12.98 MB
Publicly accessible
Included are experimental data recorded from shear experiments that specifically explore the link between fluid-injection rate and seismic moment resulting from shear reactivation of laboratory faults. Raw mechanical data from three experiments are included alongside corresponding...
Authors
Roseboom, M. et al Pennsylvania State University
geothermalenergyinduced seismicityinjection rateegsseismic momentgeomechanicsgeophysicsutah forgeshearmatlabshear experimentsraw datacodecore experimenttemcoconfining pressurepore pressureaxial pressureshear displacementfracturealong-fault pressureconstant shear stress

Utah FORGE: DAS Microseismic Event Records From April 2024 Stimulation Experiment

Mar 25, 2026
1.29 TB
In curation
This dataset contains distributed acoustic sensing (DAS) microseismic event triggers (raw waveforms) recorded during the 16A-16B stimulations conducted at the Utah FORGE site in April 2024. The dataset consists of raw waveform data provided in nanostrain rate units, accompanied by...
Authors
Ajo-Franklin, J. et al Rice University
geothermalenergyutah forgeenhanced geothermal systemsegsdistributed acoustic sensingdasfiber optic monitoringdfosmicroseismicforgewaveformraw datastimulationevent triggersfiber opticgeophysicsgeomechanicshydraulic stimulationhydraulic fracturingdas channel locationssgyseg-ysilixacarinafogmore

Utah FORGE: Fluid Injection Induced Shearing Experiments on Fractured Granitoid at Elevated Temperatures

Aug 12, 2024
80.21 MB
Publicly accessible
This repository contains experimental data from a series of fluid injection-induced shearing tests conducted on Utah FORGE granitoid. The experiments were performed using an aluminum triaxial pressure vessel (TEMCO) apparatus at Pennsylvania State University. The primary aim was t...
Authors
Elsworth, D. et al Pennsylvania State University
geothermalenergytemperatureexperimentpre-stressseismicityutah forgeegsgranitoidtemcotriaxial pressure vesselfault seismicitypre-stress ratioshearpore pressure60-gritinclined fracture

EGS Collab Experiment 1: SIMFIP Notch-164 GRL Paper

Sep 24, 2020
11.52 MB
Publicly accessible
Characterizing the stimulation mode of a fracture is critical to assess the hydraulic efficiency and the seismic risk related to deep fluid manipulations. We have monitored the three-dimensional displacements of a fluid-driven fracture during water injections in a borehole at ~1.5...
Authors
Guglielmi, Y. Lawrence Berkeley National Laboratory
geothermalenergysimfipnew borehole instrumenthydrofractureegs collabnucleateanisotropyshear displacementwellboreexperimentstimulationseismicseismicityfracturehydraulic conductivitystressshearboreholemicro-shearingfoliationinjection testsanford underground research facilitysurfegshydraulicgeophysicsdisplacementflow rate

Utah FORGE: Reports on Northwestern Nevada Well Doublet Drilling and Testing by Fervo Energy

Sep 05, 2023
17.51 MB
Publicly accessible
These reports review Fervo Energy's construction of a commercial enhanced geothermal system (EGS). Fervo has qualified full functionality of the system through production testing at commercially relevant operating conditions. The project site is located in a nearfield setting ad...
Authors
Dadi, S. et al Fervo Energy
geothermalenergyfervo energynevada egsenhanced geothermal systemsegshorizontal drillingplug-and-perfutah forgecross-well strainplug-and-perforationhorizontal doubletblue mountainnevadafiber optic sensingwell stimulationfracingfrackingreportdoublet well systemdistributed fiber optic sensingdfosfeasibilityassessment

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

Utah FORGE: Tensor Strainmeter Data for the April, 2024 Stimulation of Wells 16A(78)-32 and 16B(78)-32

Sep 09, 2025
4.44 MB
Publicly accessible
This dataset contains time series data from the four Tensor Optical Fiber Strainmeters at Utah FORGE, recorded during all stages of the April 2024 hydraulic stimulations of wells 16A(78)-32 and 16B(78)-32. The data span from midnight UTC on April 4 through April 18, 2024, and are ...
Authors
Murdoch, L. Clemson University
geothermalenergystrainstrainmeterutah forgetensor strainstimulationforgeoptical fiberegshydraulic stimulationprocessed data16a78-3216b78-32strain datageomechanicstime seriesbarometric pressureslurry ratetreatment pressuregeothermal reservoirstimulation monitoring

Utah FORGE: Laboratory Data for Emergent Pore Pressure Heterogeneity Controlling Slip Timing and Microseismicity

Mar 02, 2026
45.1 MB
Publicly accessible
Included are experimental data recorded from shear experiments that explore the effects of pore pressure heterogeneity on microseismic character and fault slip timing resulting from shear reactivation of laboratory faults. Raw mechanical and acoustic data from 15 experiments are i...
Authors
Elsworth, D. et al Pennsylvania State University
geothermalenergyinduced seismicitypore pressure heterogeneitygeomechanicsshear experimentsinjection rateutah forgeegsfault reactivationmicroseismicityacoustic emissionsfault slip timinglaboratory datatriaxial deformationgranitoid coresfluid injectionraw data

Utah FORGE: GeoThermOPTIMAL Presentation Video

Dec 12, 2022
20.69 MB
Publicly accessible
This is a project description video by Dr. William W. Fleckenstein related to their "Development of Multi-Stage Fracturing System and Wellbore Tractor to Enable Zonal Isolation During Stimulation and EGS Operations in Horizontal Wellbores" R&D project at Utah FORGE which is linked...
Authors
Fleckenstein, W. Colorado School of Mines
geothermalenergyutah forgeforgemulti-stage fracturingwellbore tractorzonal isolationhorizontal drillingfracturingegsfracingwell stimulationvideoutahdrillingtechnologywellbore technologiessleevesmp4stimulation
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