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Ionic Fluids for EGS: Rheological Behavior under HPHT Conditions

Sep 13, 2025
876.78 kB
Publicly accessible
This dataset contains high-pressure, high-temperature (HPHT) rheological measurements of ionic liquids and alternative geothermal fluids. Experiments were conducted at Oklahoma State University using a Chandler Model 5550 viscometer and Rheo 5000 software to evaluate the flow beha...
Authors
Maitra, E. and Al Dushaishi, M. Oklahoma State University
geothermalenergyionic liquid rheologyhpht rheologygeothermal fluid rheologyionic liquidsrheologyhphthpht conditionsdeep eutetic solventsdesgeothermal fluidsionic fluids for egsviscosityflow behaviorhigh-pressure testinghigh-temperature testingenhanced geothermal systemsegsraw datalaboratory datageochemistry

Utah FORGE 10-3726: Geothermal Multiset Straddle for High Temperature Applications 2025 Workshop Presentation

Sep 18, 2025
437.16 MB
Publicly accessible
This is a presentation on the Geothermal Multiset Straddle (GMS) for High Temperature Applications by Welltec, presented by Ricardo Vasques. This video slide presentation discusses the development of (1) an annular multiset isolation system; (2) a stimulation straddle isolation sy...
Authors
Vasques, R. Welltec Inc.
geothermalenergyutah forgeegs2025 annual workshopmultiset straddle systemzonal isolationhigh-temperature toolsstimulation systemsdownhole controlflow controlwell longevitytool developmentpresentationpresentation slidespresentation recordingreport

Utah FORGE 5-2419: Final Report and Presentation on Seismicity Permeability Relationships Probed via Nonlinear Acoustic Imaging

Sep 30, 2025
254.88 MB
Publicly accessible
This submission contains the final technical report and closeout presentation for Utah FORGE Project 5-2419, which investigates the coupled evolution of permeability and induced seismicity in enhanced geothermal systems using laboratory experiments, field observations, and nonline...
Authors
Elsworth, D. Pennsylvania State University
geothermalenergyutah forgeegspermeabilityinduced seismicitylaboratory experimentsfield observationsnonlinear acoustic imagingfault reactivationreservoir rockmicroearthquakestimulationphysics informed modelingmachine learningseismic momentstress statepermeability creationseismic hazardtechnical reportgeomechanicsgeophysicsmicroseismicity

EGS Collab: Hydraulic Fracturing Test Measurements on the 4100L of SURF

Aug 15, 2019
21.63 MB
Publicly accessible
This package includes data from two days of testing at the Sanford Underground Research Facility (SURF) on the 4100 level. The tests were performed in borehole TV4100 in the battery charging alcove south of the Yates shaft. TV4100 is a vertical borehole ~50 meters deep. A series o...
Authors
Ingraham, M. et al Sandia National Laboratories
geothermalenergyegs collabsurfhydraulicfracturingstimulationsanford underground research facilityexperimentegsblack hillsboreholestressdatapressureflowinjectioninitial shut in pressureisipfractureraw datashift reports4100linjection testheat flowrhyoliteamphibolitegeophysics

Utah FORGE 6-3656: Real-Time Traffic Light System and Reservoir Engineering with Seismicity Forecasting and Ground Motion Prediction 2025 Workshop Presentation

Sep 18, 2025
86.94 MB
Publicly accessible
This is a presentation on Real-Time Robust Adaptive Traffic Light System and Reservoir Engineering with Machine-Learning-Based Seismicity Forecasting and Data-Driven Ground Motion Prediction (RT Forecast) by Lawrence Berkeley National Laboratory, presented by Nori Nakata. This vid...
Authors
Nakata, N. Lawrence Berkeley National Laboratory
geothermalenergyutah forge2025 annual workshopegsinduced seismicitytraffic light systemmachine learningseismicityforecastingground motion predictiongenerative aireservoir engineeringhigh-pressure experimentspresentationpresentation slidespresentation recordingreport

Utah FORGE: 2024 Annual Report on Activities and Advancements

Jan 27, 2025
19.87 MB
Publicly accessible
This 2024 annual report for Phase 3B Year 2 at Utah FORGE provides an in-depth account of activities and advancements made at the site. Key achievements include drilling and stimulating the production well 16B(78)-32, creating a geothermal reservoir, and achieving commercial-scale...
Authors
McLennan, J. et al Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgephase 3byear 2yearly reportreportutah forge reportdrillingreservoir creationutah forge phase 3b report2024 annual reportegswell 16b78-32stimulationcirculationfiber optic monitoringdrilling technologiesseismic monitoringresearch and developmenttechnical reportannual report

Baseline System Costs for a 50 MW Enhanced Geothermal System 2012

Apr 30, 2012
5.08 MB
Publicly accessible
Substantial unexploited opportunity exists for the US, and the world, in Enhanced Geothermal Systems (EGS). This cost analysis study provides a baseline cost for a 50 MW Geothermal Power Plant in a challenging New England environment. The study then assesses how project costs wo...
Authors
Selman, N. Gas Equipment Engineering Corporation
egsgeothermalworking fluiddrillingcost analysiswestern massachusettsreservoir modelingmountain home idchina lakecaenhanced geothermal systems

Utah FORGE: 2022 Seismic Workshop Report

Dec 19, 2022
505.62 kB
Publicly accessible
Utah FORGE held a two-day seismic workshop on the University of Utah campus in Salt Lake City, Utah on September 26 and 27, 2022 to share what was learned from the seismic monitoring during the 2022 stimulation. This is a report documenting this workshop. The meeting was structure...
Authors
Pankow, K. University of Utah Seismograph Stations
geothermalenergyutah forgeseismicseismicityseismic monitoring protocolseismic instrumentationseismic traffic light systemsseismic workshop2022 seismic workshopegs seismicityforgeegsworkshopreportstimulationseismic networkpressure monitoringresource development

Utah FORGE: 2023 Phase 3B Year 1 Annual Report

Aug 09, 2023
15.64 MB
Publicly accessible
This report discusses the objectives, goals, accomplishments and results of Phase 3B Year 1 of the Utah FORGE project. The report includes infrastructure, seismic monitoring, modelling, external R&D, communications and outreach, data produced, lessons learned, conclusions, and pla...
Authors
Moore, J. et al Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgeseismic monitoringinfrastructuremodellingrdcommunicationsoutreachannual reportplansdatamtmagnetotelluricphase 3bmilfordegsstimulationtracerinjectiongeophysicsmicroseismicforge reportssite operationsresource developmenttechnology development

Utah FORGE: Phase 3A, Year 2, Annual Report

Jul 29, 2022
45.42 MB
Publicly accessible
This is the annual report for Utah FORGE Phase 3A, year two, which was published on July 28th, 2022. The report includes site infrastructure, site operations, seismic monitoring reports, FORGE modeling reports, and external research and design. The ultimate objective of Utah FORGE...
Authors
Moore, J. et al Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgeannual reportutah forge phase 3a reportutah forge reportutah forge reportsreportphase reportutahforgemodelingsite infrastructuresite operationsoperationsegsresource developmenttechnology development

Ionic Fluids for EGS: Microfluidic Injectivity and Reversibility Data for Geothermal Working Fluids

Sep 13, 2025
22.36 MB
Publicly accessible
This dataset contains raw experimental data from microfluidics-based injectivity and reversibility tests of ionic liquids (ILs) and alternative fluids (AFs). Fluids were injected through individual and combined microchannels at three temperatures (18 C, 50 C, and 80 C), and differ...
Authors
Akhilome, C. and Bikkina, P. Oklahoma State University
geothermalenergymicrofluidicsegsionic fluids for egsinjectivityreversibilitygeothermal fluidsionic liquidspressure dropflow ratemicrochannel testingenhanced geothermal systemsgeothermal fluid dynamicslaboratory datageochemistryraw datamicrochannel flowfluid transportgeothermal testingdaq systemdifferential pressure analysis

Technology Development and Field Trials of EGS Drilling Systems at Chocolate Mountain

Jan 01, 2012
23.51 MB
Publicly accessible
Polycrystalline diamond compact (PDC) bits are routinely used in the oil and gas industry for drilling medium to hard rock but have not been adopted for geothermal drilling, largely due to past reliability issues and higher purchase costs. The Sandia Geothermal Research Departmen...
Authors
Knudsen, S. et al Sandia National Laboratories
geothermalchocolate mountainsdrillingpdc bitroller conegranitechocolate mountains drillingsynthetic diamondrate of penetrationegslateral vibration spectrumcaliforniacasouthern californiasocaldrilling recordsperformance datadrilling chartsbefore and afterpicturesvibration spectrum

EGS Collab Experiment 2: Microseismic Monitoring

May 28, 2024
230 TB
Publicly accessible
This dataset contains continuous seismic waveform data recorded during stimulation and thermal circulation tests for the Enhanced Geothermal Systems (EGS) Collab Experiment #2, conducted from February to September 2022 at the Sanford Underground Research Facility in Lead, South Da...
Authors
Hopp, C. Lawrence Berkeley National Laboratory
geothermalenergymicroseismicwaveformcontinuous seismicstimulationcirculationsurf3caccelerometerhydrophoneborehole arrayegs collabraw datacontinuous waveformbinaryseedobspytechnical reportgeophysicsmicroseismicity

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: 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

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

Developing Successful Exploration Strategies in Extended Terranes

Dec 31, 2013
7.07 MB
Publicly accessible
We conducted a comprehensive analysis of the structural controls of geothermal systems within the Great Basin and adjacent regions. Our main objectives were to: 1) Produce a catalogue of favorable structural environments and models for geothermal systems. 2) Improve site-specifi...
Authors
E., J. University of Nevada
geothermalstructural controlsgreat basinquaternary faultswalker lanesouthern cascadespotential for developmentsubsurfacegeologykinematic analysisstress determinationgravitygravity surveygeophysicsgeophysicalslip tendancy3d modelingtectonic settingdrill sitedrill site selection

Reservoir Stimulation Optimization with Operational Monitoring for Creation of EGS

Sep 25, 2013
65.42 MB
Publicly accessible
EGS field projects have not sustained production at rates greater than half of what is needed for economic viability. The primary limitation that makes commercial EGS infeasible is our current inability to cost-effectively create high-permeability reservoirs from impermeable, igne...
Authors
A., C. Pacific Northwest National Laboratory
geothermalfracturing fluidmonitoringxmtnmracousticrheologypermeabilityegsigneous rock

Chlorite, Biotite, Illite, Muscovite and Feldspar Dissolution Kinetics at Variable pH and Temperatures up to 280 deg C

Feb 24, 2017
19.93 MB
Publicly accessible
Chemical reactions pose an important but poorly understood threat to EGS long-term success because of their impact on fracture permeability. This report summarizes the dissolution rate equations for layered silicates where data were lacking for geothermal systems. Here we report ...
Authors
Carroll, S. et al Lawrence Livermore National Laboratory
geothermalenergykinetic dataillitemuscovitefeldsparchloritebiotitegeochemistrychemistryfracture permeabilitysuccessdissolutionrate equationskineticsegsenhanced geothermal systems

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: 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

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

Updated Overpressures and Permeability Values for PNNL's StimuFrac Fluid

Apr 06, 2016
471.63 kB
Publicly accessible
A corrigendum was submitted to the journal of Geothermics on our article "Environmentally friendly, rheoreversible, hydraulic-fracturing fluids for enhanced geothermal systems" Shao et al Geothermics 58 (2015) 22-31. In the original article some permeability values were underesti...
Authors
Shao, H. et al Pacific Northwest National Laboratory
geothermalstimuli-responsivefracking fluidcorrigendumgeothermicshydraulic fracturingstimulationegsreservoirfluid

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 6-3712: Probabilistic Estimation of Seismic Response Using Physics-Informed Recurrent Neural Networks 2025 Workshop Presentation

Sep 18, 2025
70.48 MB
Publicly accessible
This is a presentation on the Probabilistic Estimation of Seismic Response Using Physics-Informed Recurrent Neural Networks by GTC Analytics, presented by Dr. Jesse Williams. This video slide presentation discusses the development of machine learning-based predictive tools to esti...
Authors
Williams, J. GTC Analytics
geothermalenergyutah forgeegs2025 annual workshopinduced seismicitymachine learningrecurrent neural networksprobabilistic modelingseismic response predictionmagnitude-frequency analysisphysics-informed aipresentationpresentation recordingpresentation slidesreport
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