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"fused silica surrogate cylindrical samples"×
EGS×

Lab-Scale Stimulation Results on Surrogate Fused Silica Samples

Jul 06, 2016
73.74 kB
Publicly accessible
Lab-scale stimulation work on non-porous fused silica (similar mechanical properties to igneous rock) was performed using pure water, pure CO2 and water/CO2 mixtures to compare back to back fracturing performance of these fluids with PNNL's StimuFrac.
Authors
Fernandez, C. Pacific Northwest National Laboratory
geothermaleffective pressurefused silicastimufraclab-scale stimulationfracturing proformancehydraulic fracturingquartzfracking fluidpressuremeasured effective pressuresupercritical co2reservoir stimulationegs

Water chemistry data and calculations for Fracture Sustainability Tests

Sep 30, 2020
1.26 MB
Publicly accessible
Measured cation, anion, and silica are presented as well as calculations evaluating mass balance performed for 4 fracture sustainability tests under EGS conditions: Stripa granite, Metamudstone, Rhyolitic Ashflow Tuff, and Silicified Rhyolitic Tuff. Calculations of charge balance ...
Authors
Kneafsey, T. et al Lawrence Berkeley National Laboratory
geothermalenergyfracturewater chemistryexperimentgranitedesert peakbradyegsreservoirfracture sustainability teststriparhyolitic ashflowtuff cationsilicified rhyoliticmetamudstonecationanionsilicamass balancepermeabilityshear-inducedgroundwater chemistrygroundwatergeochemistrymetasedimenteffluent

Favorable Geochemistry from Springs and Wells in Colorado

Feb 01, 2012
119.5 kB
Publicly accessible
This layer contains favorable geochemistry for high-temperature geothermal systems, as interpreted by Richard "Rick" Zehner. The data is compiled from the data obtained from the USGS. The original data set combines 15,622 samples collected in the State of Colorado from several sou...
Authors
E., R. Flint Geothermal, LLC
geothermalgeochemistrycoloradoarcgisgisshapefileshape filegeospatialgeospatial datahydrologywater samplesegsenhanced geothermal

Utah FORGE 6-3712: Curated and Fused 2022 and 2024 Stimulation Injection Datasets and Processing Report February 2026

Feb 25, 2026
155 MB
Publicly accessible
This submission contains curated injection parameter datasets from the 2022 and 2024 stimulation experiments conducted at the Utah FORGE site, along with the report documenting the data processing workflow. The datasets were developed as part of Project 6-3712: Probabilistic Estim...
Authors
Williams, J. et al Global Technology Connection, Inc.
geothermalenergyinduced seismicityinjection parametersdatasetstimulationutah forgeegsstimulation experimentinjection datatreating pressureslurry rateclean ratecumulative injected volumeinflow rateflowbacktime-series dataprocessed datahydraulic stimulationfeomechanics

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

Utah FORGE: Laboratory Fault Reactivation and Permeability Evolution During Fluid Injection

Sep 15, 2025
182.35 GB
Publicly accessible
This dataset contains results from controlled shear reactivation experiments performed on cylindrical Westerly and granitoid granite samples with a single inclined fracture. Laboratory faults were pre-loaded near failure and reactivated by fluid injection to examine relationships ...
Authors
Elsworth, D. et al Pennsylvania State University
geothermalenergyinduced seismicityutah forgewesterly granitegranitoidpermeabilityshear stimulationegsfault reactivationfluid injectionpermeability evolutionseismicityacoustic emissionssingle inclined fractureshear stresspore pressuretriaxial testingmechanical datageomechanicsraw dataprocessed dataacoustic data

Raw Neutron Scattering Data for Strain Measurement of Hydraulically Loaded Granite and Marble Samples in Triaxial Stress State

May 23, 2014
22.11 MB
Publicly accessible
This entry contains raw data files from experiments performed on the Vulcan beamline at the Spallation Neutron Source at Oak Ridge National Laboratory using a pressure cell. Cylindrical granite and marble samples were subjected to confining pressures of either 0 psi or approximate...
Authors
Polsky, Y. Oak Ridge National Laboratory
geothermalneutronstrainhydraulic fracturingegsdiffractiongranitemarbletriaxialhydraulic fracturestressneutron scatteringvulcan beamline

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: Slide-Hold-Slide Experiments on Westerly Granite at Temperatures up to 250 Degrees C

Oct 10, 2023
2.08 MB
Publicly accessible
Laboratory slide-hold-slide tests were conducted in a conventional triaxial deformation configuration on 1-inch diameter cylindrical cores of Westerly granite bisected by a sawcut oriented at 30 degrees from vertical. Tests were conducted at a constant confining pressure of 30 MPa...
Authors
Jeppson, T. et al United States Geological Survey
geothermalenergyslide-hold-slideutah forgeegstriaxialwesterly granitefault strengthfrictional strengthfault weakeninghydrothermalhydrothermal alterationearthquakesinduced seismicitystrength recoverygeophysicsgeomechanics

Utah FORGE: Well 9-1 Logs and Data from Roosevelt Hot Springs Area

Mar 03, 2016
166.63 MB
Publicly accessible
This is a compilation of logs and data from Well 9-1 in the Roosevelt Hot Springs area in Utah. This well is also in the Utah FORGE study area. The file is in a compressed .zip format and there is a data inventory table (Excel spreadsheet) in the root folder that is a guide to the...
Authors
Moore, J. Energy and Geoscience Institute at the University of Utah
geothermalforgeutah forgeegsroosevelt hot springutah geothermalgeothermal wellswell logsutah well logsmilfordtemperaturemulti-shotdirectionalgeochemicalammoniasilicaanalysisdaily report1975core logacoustic cement bondcompensated sonicboreholedensilogformation densitydownholegeophysicsgeophysicalsurveygamma rayneutronporosityinductionmudsubsurfacewell logwell datautah9-1resourcecharacterizationroosevelt hot springs

Summary Fracturing of Coso Samples with StimuFrac

Sep 06, 2016
61.24 kB
Publicly accessible
Lab-scale stimulation was performed on Coso samples obtained from a single core (1623 feet TVD, reservoir Coso CGC 18-27) using StimuFrac and control fluid in the absence of stimuli-responsive polymer.
Authors
Fernandez, C. Pacific Northwest National Laboratory
geothermalstimuli-responsivecosoeffective pressurelab-scale stimulationegsstimufracfracking fluidhydraulic fracturingfracture mechanismsoverpressurestimulationegs reservoir

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

Fracture Sustainability Test, Pre and Post-Test Photomicrographs

Sep 26, 2016
212.12 MB
Publicly accessible
The primary objective of this research is to understand how different rock types, mineral and fluid compositions, and fracture surface textures determine the longevity of fracture apertures, so that selection of reservoir rock can be economically optimized to reduce future refract...
Authors
Dobson, P. et al Lawrence Berkeley National Laboratory
geothermalenergyfracturesustainabilityphotomicrographbrady welldesert peakbch-03dp 35-13xplwell datapre-testpost-testshear-inducedpermeabilityegsreservoirstripa graniteaperturegeologytemperaturebrineshear

Foam Fracturing Study for Stimulation Development of Enhanced Geothermal Systems

May 17, 2022
10.61 MB
Publicly accessible
This is a final technical report for the project: Foam Fracturing Study for Stimulation Development of Enhanced Geothermal Systems (EGS). The goal is to demonstrate the feasibility of foam fracturing in EGS applications. The project, led by Oak Ridge National Laboratory (ORNL), wa...
Authors
Wang, H. et al Oak Ridge National Laboratory
foam fracturingfoam stabilitywaterless stimulationenhanced geothermal systemsegsenergygeothermalfoamfracturingsimulationtestsample datablind boreholefatiguestressdatatime data

Utah FORGE: EGS Reservoir Produced Fluids Trace Elements 2024

May 21, 2025
11.36 kB
Publicly accessible
This dataset contains trace element concentrations from fluid samples collected during the August-September 2024 circulation test at Utah FORGE. Samples were taken from injection well 16A(78)-32, production well 16B(78)-32, and monitoring well 58-32 on four dates between August 16...
Authors
Simmons, S. Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forge16a78-3216b78-3258-32circulation testgeochemistryproduced fluidstrace elementsegsfluid chemistrywell samplinginjection wellproduction wellmonitoring wellunfiltered sampleselemental analysisgeothermal reservoirreservoir characterizationraw data

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

kISMET Core Photos and Descriptions

Aug 02, 2016
15.5 GB
Publicly accessible
These core photos and descriptions were taken from the five boreholes that were drilled as part of the kISMET SubTER project conducted at the Sanford Underground Research Facility (SURF) in Lead, SD. The boreholes are subvertical in orientation, and were drilled on the 4850 level ...
Authors
Dobson, P. et al Lawrence Berkeley National Laboratory
geothermalsubterstresshydraulic fracturingegssanford underground research facilitycorepoorman formationsurfkismetcore logscore photoscore descriptionsborehole

Utah FORGE: Well 16A(78)-32 Core Photos

Aug 11, 2021
50.05 MB
Publicly accessible
Images of core samples collected from Utah FORGE well 16A(78)-32. These images were created by stitching together multiple photographs resulting in a circumferential view of the cores exterior in two dimensions. Core footages (measured depths) are indicated in the file names, and ...
Authors
Jones, C. Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgeforgeutah geothermalreservoirengineeringhydraulicfracturingegswell 16a78-32well 16a78-32 core imageswell 16a78-32 corecore samplegeologygeologicwellimageswell samplessamplesutahcore

Utah FORGE: Well 16A(78)-32 X-ray Diffraction Data

Jul 29, 2021
18.13 kB
Publicly accessible
This submission contains x-ray diffraction data taken from 3,600 to 10,987 feet deep in well 16A(78)-32 in the Roosevelt Hot Springs Geothermal Area as part of the Utah FORGE project. 78 rock samples were taken. Samples are taken in a range of ten feet at 100 foot increments. Mine...
Authors
Jones, C. Energy and Geoscience Institute at the University of Utah
geothermalenergyxrdx-ray diffractionutah forgewell 16a78-3216a78-32 xrd16a78-32 x-ray diffractionx-rayxrayxray diffractionegsutahwelldataraw datageologygeologicalroosevelt hot springsmilfordmineral abundance

Post-Test SEM Examination of Brady Core, Desert Peak Core, and Stripa Granite Samples

Dec 23, 2015
73.15 MB
Publicly accessible
As part of the shear-induced permeability test of Brady well BCH-03, Desert Peak well DP 35-13, and Stripa granite samples, the three post-test (reacted) rock samples were examined using a Scanning Electron Microscope (SEM). The SEM images of the core and elemental analysis are in...
Authors
Kneafsey, T. et al Lawrence Berkeley National Laboratory
geothermalenergystripa granitebrady welldesert peakwell databch-03dp 35-13egsshearpermeability testpermeabilitysemscanning electron microscopetiffrastermetasedimentary mudstonesilicified rhyolitetuffrhyoliteash-flowcoreelemental analysis

Snake River Plain FORGE: Well Data for USGS-142

Nov 23, 2015
19.78 MB
Publicly accessible
Well data for the USGS-142 well located in eastern Snake River Plain, Idaho. This data collection includes lithology reports, borehole logs, and photos of rhyolite core samples. This collection of data has been assembled as part of the site characterization data used to develop ...
Authors
Twining, B. Idaho National Laboratory
geothermalforgeegscore sample photosrhyolitelithologysrgcsnake river plainidahotempaddendumboreholelogusgs 142core samplesphotospresentationxrf datawhole rocktrace-element analysisignimibritethin sectionpetrographicimagesnatural gammagamma radiationtemperature profileneutron porositygamma-gammadensitywell logsrpcore samplecore photosmineralogypetrographygeologystratigraphic columnstratigraphyxrfsrg

Utah FORGE: Well 16B(78)-32 Core Photographs

Nov 20, 2023
150.89 MB
Publicly accessible
This dataset includes images of core samples collected from Utah FORGE well 16B(78)-32. The images are stitched photographs showing the circumferential view of the cores exterior in two dimensions and the individual photos of the core taken at multiple angles used to construct the...
Authors
Jones, C. Energy and Geoscience Institute at the University of Utah
geothermalutah forgewell 16b78-3216b16b78-32core photoscore photographystitched core photospetrographypetrologyegscore samplesenergy

Fallon FORGE: Fluid Geochemistry

Mar 13, 2018
92.65 kB
Publicly accessible
Fluid geochemistry analysis for wells supporting the Fallon FORGE project. Samples were collected from geothermal wells using standard geothermal water sampling techniques, including filtration and acidification of the cation sample to pH < 2 prior to geochemical analysis. Analyse...
Authors
Blankenship, D. and Ayling, B. Sandia National Laboratories
geothermalenergygeochemistryfallonforgenevadaegsvetted-nowater qualitywaterfluidsamplesampling

Altona, NY EGS Field Site Radon Study

Sep 02, 2016
0.95 kB
Publicly accessible
Data include 222Rn activities and complimentary geochemical data for multiple field experiments as part of an EGS project
Authors
Brown, S. and Christensen, J. Lawrence Berkeley National Laboratory
geothermalenergyradontrace elementmajor elementgeochemistryegsenhanced geothermal systemgeochemicalcompositiondataradioactivityradioisotopetraceraltonanew yorknyuraniumthoriumthu222rn238u226ra228raradiumradioactiveelementaltona test sitepotsdam sandstonesandstone

Filenames of Data from the Distributed Acoustic Sensing Experiment at Garner Valley, California

Jul 01, 2015
295.4 kB
Publicly accessible
In September 2013, an experiment using Distributed Acoustic Sensing (DAS) was conducted at Garner Valley, a test site of the University of California Santa Barbara (Lancelle et al., 2014). This submission lists all file names from Distributed Acoustic Sensing (DAS) data collected...
Authors
Lancelle, C. et al University of Wisconsin
geothermalporotomodasegsdistributed acoustic sensingfilenamesdirectivitysensitivityfiber-opticsground motionmeasurement
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