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"single fracture"×

Thermal Drawdown-Induced Flow Channeling in a Single Fracture in EGS

Nov 15, 2015
1.32 MB
Publicly accessible
The evolution of flow pattern along a single fracture and its effects on heat production is a fundamental problem in the assessments of engineered geothermal systems (EGS). The channelized flow pattern associated with ubiquitous heterogeneity in fracture aperture distribution caus...
Authors
Guo, B. et al Lawrence Livermore National Laboratory
geothermalthermal drawdownsingle fracture systemthermomechanical couplingflow channelingreservoir simulationegsengineered geothermal systemsgeothermicsheat productionsingle fracturethermomechanical

Lost Circulation Materials in Geothermal Drilling: Single Fracture Clogging Experments

Jan 06, 2025
9.9 MB
In progress
The submitted dataset was generated by a series of laboratory fracture clogging (permeability reduction) experiments using commercially available materials used for lost circulation management during geothermal well drilling. The experiments were conducted using a permeability plu...
Authors
Lawrence Berkeley National Laboratory
geothermalenergydrillinglost circulation managementlost circulation materialsfractureclogginglaboratory experiment

Ionic Fluids for EGS: Thermohydraulic Flow Data for Alternative Geothermal Fluids

Sep 13, 2025
1.65 MB
Publicly accessible
This dataset contains thermohydraulic measurements of fluid flow through single and dual fracture systems under controlled laboratory conditions. Experiments were conducted at Oklahoma State University using various ionic and nonionic fluids, including deep eutectic solvents (DES)...
Authors
Maitra, E. et al Oklahoma State University
geothermalenergyfluid flow and heat transfer in fracturefracture flow distributionalternative geothermal fluidsionic fluid flow in fractureionic liquids as working fluidthermohydraulicsgeothermal fluidsfracture flowionic liquidsdual fracture systemsdeep eutetic solventsdeshigh-temperature testingpressure differentialflow rateraw dataegslaboratory datageochemistryengineered fluids

Utah FORGE 5-2565: Final Report on the Evolution of Permeability and Strength Recovery of Shear Fracture Under Hydrothermal Conditions

Aug 24, 2025
3.52 MB
Publicly accessible
This report discusses the results of research on the ability to create and/or reactivate and subsequently sustain fracture systems which are strongly influenced by complexly coupled mechanical (M) and chemical (C) processes in reservoirs forced from equilibrium by hydraulic stimul...
Authors
Jeppson, T. et al United States Geological Survey
geothermalenergyutah forgeegsenhanced geothermal systemsfluid-rock interactionsthmc processesfracture evolutionusgsfracturesgeothermal resorvoirsfracture reactivationthmcmechanicalchemicalhydraulic stimulationthermal drawdownfinal reporttechnical report

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

Using Fully Coupled Hydro-Geomechanical Numerical Test Bed to Study Reservoir Stimulation with Low Hydraulic Pressure

Jan 31, 2012
6.63 MB
Publicly accessible
This paper documents our effort to use a fully coupled hydro-geomechanical numerical test bed to study using low hydraulic pressure to stimulate geothermal reservoirs with existing fracture network. In this low pressure stimulation strategy, fluid pressure is lower than the minimu...
Authors
Fu, P. et al Lawrence Livermore National Laboratory
geothermalreservoir modelinghydraulic shearinghydraulic fracturingfracturereservoir stimulationlow pressurestimulation

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

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

Subsurface Characterization and Machine Learning Predictions at Brady Hot Springs

Feb 18, 2021
4.49 MB
Publicly accessible
Subsurface data analysis, reservoir modeling, and machine learning (ML) techniques have been applied to the Brady Hot Springs (BHS) geothermal field in Nevada, USA to further characterize the subsurface and assist with optimizing reservoir management. Hundreds of reservoir simulat...
Authors
Beckers, K. et al National Renewable Energy Laboratory
geothermalenergymachine learningsubsurfacecharacterizationbrady hot springspredictionreservoir modelingtime seriespcaprincipal component analysisreservoir managementbradys hot springsporotomoreservoirdual-porositystimulationinjection testmodeltemperatureflowpressuresimulationsingle-fracturedoubletheatmapheat maptensorflow

Utah FORGE: Slide-Hold-Slide Experiments on Gneiss at Increased Temperature

Jul 25, 2023
4.1 GB
Publicly accessible
Included are data from triaxial, single-inclined-fracture friction experiments. The experiments were performed with slide-hold-slide protocol on Utah FORGE gneiss at increased temperature. With a ~10 MPa normal stress, temperatures vary between experiments from room temperature u...
Authors
Eijsink, A. and Elsworth, D. Pennsylvania State University
geothermalenergyfrictionsingle inclined fractureslide-hold-slideacoustic dataacoustic emissionpassive acousticgeophysicsfracturereactivationgneissutah forgeegsfriction dataactive acousticvelocity data

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

Deep Direct-Use Feasibility Study Numerical Modeling and Uncertainty Analysis using iTOUGH2 for West Virginia University

Dec 20, 2019
384.67 MB
Publicly accessible
To reduce the geothermal exploration risk, a feasibility study is performed for a deep direct-use system proposed at the West Virginia University (WVU) Morgantown campus. This study applies numerical simulations to investigate reservoir impedance and thermal production. Because of...
Authors
Garapati, N. et al West Virginia University
geothermalwvutuscaroraitough2lbnlreservoir flow modelpermeabilityfracturematrixuncertainty analysisnumerical modelingmonte carlofirst-order-second-moment uncertainty propagation analysisfeasibilityddudeep direct-usemorgantownreservoir impedancethermal productionresource potentialthermal breakthroughpermeability modelseconomic analysispapergeothermicsgeothermal exploration riskexploration riskmodelingeconomicdirect usewest virginia universitytuscarora sandstoneflow modeluncertaintyanalysissimulationflow

Sentinel-1 Input Data for PSInSAR Analysis

Apr 29, 2021
305.43 GB
Publicly accessible
Files used to perform the Persistent Scatterer InSAR analysis with SARPROZ. The data is sourced from ESAs Sentinel-1 project and covers Brady Hot Springs and Desert Peak geothermal areas. The original titles are included for the Sentinel-1 data. The naming guide is included as a l...
Authors
Moraga, J. Colorado School of Mines
geothermalenergyinsarpsinsarsentinel-1synthetic aperture radarsatellite imagingaiartificial intelligencedeep learningmachine learningaerial photographyremote sensingsite detectionanomaly detectioninput datageologydisplacementsubsoilphenomenaprocessed dataradarimaginginterferometricanalysissoil deformationgeospatial data

Brady Hot Springs Seismic Modeling Data for Push-Pull Project

Jul 31, 2018
16.99 GB
Publicly accessible
This submission includes synthetic seismic modeling data for the Push-Pull project at Brady Hot Springs, NV. The synthetic seismic is all generated by finite-difference method regarding different fracture and rock properties.
Authors
Zhang, R. University of Louisiana
geothermalenergyseismicgeophysicsactive sourcevelocitygeophysicaldatamodelingnumericalsyntheticbrady hot springsnevadanvfracturerockgeologicpropertiespropertypush-pullfinite differencenumerical modelingvspvertical seismic profilingboreholefracturednon-fracturedmediaco2saturation

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

WISE-CASING: Surface Seismic Survey at Cymric Field, California Central Valley

Apr 02, 2018
31.04 MB
Publicly accessible
This test was conducted at the Chevron Cymric oilfield in the California central valley near Bakersfield. A reflected seismic signal was observed in all three components (x, y, z) of the 3-component Episensor geophone, as well as all phones on the single component array. The arriv...
Authors
Wu, Y. et al Lawrence Berkeley National Laboratory
geothermalenergyseismic datacymric oilfieldseismic signal3-component geophonescymric surfacebertical geophonesreflected waveegswellborecasingwise-casingintegritysensingassessmentgeophysicsseismicsurfacecymric

Utah FORGE: Development of Multi-Stage Fracturing System and Wellbore Tractor to Enable Zonal Isolation During Stimulation and EGS Operations in Horizontal Wellbores

Oct 05, 2022
4.59 MB
Publicly accessible
This paper discusses the progress on a project funded by the DOE Utah FORGE (Frontier Observatory for Research in Geothermal Energy) for the development of a subsurface heat exchanger for Enhanced Geothermal Systems (EGS) using unique casing sleeves cemented in place and are used ...
Authors
Fleckenstein, W. et al Colorado School of Mines
geothermalenergycompletionsleevestractorheat modelegsutah forgestimulationfracturingwellbore technologieswellbore technologyheat exchangergeothermoptimalfracoptimal

EGS Collab Experiment 2: Distributed Fiber Optic Acoustic Data (DAS)

May 28, 2024
212.2 TB
Publicly accessible
Distributed fiber optic sensing was an important part of the monitoring system for EGS Collab Experiment #2. A single loop of custom fiber package was grouted into the four monitoring boreholes that bracketed the experiment volume. This fiber package contained two multi-mode fiber...
Authors
Rodriguez Tribaldos, V. and Hopp, C. Lawrence Berkeley National Laboratory
geothermalenergyegs collabexperiment 2distributed acoustic sensingdassilixaidasterra15trebleoptasenseodh3hdf5tdmsraw datastrain ratemulti-mode fibersingle-mode fibergeophysics

EGS Collab Experiment 1: Circulation Testing Processed data

Apr 01, 2021
129.85 MB
Publicly accessible
This submission includes processed and reduced data for circulation testing that was conducted at the 164' fracture on the 4850 ft level of the Sanford Underground Research Facility. The circulation tests were done to test the flow through the 164' fracture in the EGS Collab Exper...
Authors
Fu, P. et al Lawrence Livermore National Laboratory
geothermalenergyegs collabsurfsanford underground research facilityexperimentegscirculationthermal drawdownprocessed datadata processingpythoncodeinjection testinjection rateinjection pressureflowpressuretemperaturestimulation

DEEPEN Leapfrog Geodata Model Cleaned and Reformatted Exploration Datasets from Newberry Volcano

Jun 30, 2023
413.96 MB
Publicly accessible
DEEPEN stands for DE-risking Exploration of geothermal Plays in magmatic ENvironments. As part of the DEEPEN 3D play fairway analysis (PFA) conducted at Newberry Volcano for multiple play types (conventional hydrothermal, superhot EGS, and supercritical), existing geoscientific e...
Authors
Pauling, H. et al National Renewable Energy Laboratory
geothermalenergydeepensuperhotsupercriticalsuperhot egsnewberrymagmatichydrothermalpfaprocessed dataexplorationcharacterizationdatasetsgeodata3dmodelingdemlidarmtmagnetotelluricsgravitydensityresistivityearthquake catalogseismicvelocitytemperature modelgeologic modelalteration modelwell data

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

EGS Collab Experiment 1: Core Logs

Apr 02, 2019
45.54 GB
Publicly accessible
Core logs from the EGS Collab project Experiment 1 for the stimulation (Injection) well (E1-I), the Production well (E1-P), and monitoring wells (E1-OT, E1-OB, E1-PST, E1-PSB, E1-PDT, and E1-PDB) on the 4850 Level of SURF (the Sanford Underground Research Facility), single PDF fil...
Authors
Dobson, P. et al Lawrence Berkeley National Laboratory
geothermalenergycoreboreholepoormansurfegscollabfracturese1-iinjection wellexperiment 1e1-pste1-obe1-pe1-ote1-psbe1-pdtlogsphotose1-pdbstimulationwellinjectionhydraulicmonitoringlogsamplefoliationfoldingfracturingfracturefoldfeatureshomestakesigma-v

A Class III Cultural Resources Inventory of Proposed Roads and Drill Pads for the McGee Mountain Geothermal Project, Humboldt County, Nevada

Aug 10, 2010
447.37 kB
Publicly accessible
From July 20th to July 22nd, 2010, Chambers Group personnel conducted a cultural resources inventory of the project area. The recordation and inventory resulted in the recordation a single newly identified prehistoric site (CrNV-2-9605) and five isolated finds (CrNV-2-1490 to 1494...
Authors
Zehner, R. Geothermal Technical Partners, Inc.
geothermalnevadamcgee mountaincultural studycultural resourcesinventoryhumboldt county

Utah FORGE: EGS Reservoir Produced Fluids Geochemistry 2022-2024

Feb 26, 2025
1.38 MB
Publicly accessible
This dataset contains geochemical analyses of produced fluids from the Utah FORGE site, specifically from wells 16A(78)-32, 16B(78)-32, and 58-32, collected during various stimulation, flowback, and circulation tests conducted between 2022 and 2024. The data contains element conce...
Authors
Simmons, S. et al Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgegeochemistryproduced fluids16a78-3258-32circulation testsstimulationflowback waterflowback watersstimulation testsegsreservoir monitoringdissolved gasesmineral dissolutionfluid chemistrybrine compositionchemical geothermometry16b78-32

Utah FORGE: Neubrex Well 16B(78)-32 DAS Data April 2024

Oct 01, 2024
97.48 TB
Publicly accessible
This dataset comprises Distributed Acoustic Sensing (DAS) data collected from the Utah FORGE monitoring well 16B(78)-32 (the producer well) during hydraulic fracture stimulation operations conducted in April 2024. The data were acquired continuously over the stimulation period at ...
Authors
Jurick, D. et al Neubrex Energy Services (US), LLC
geothermalenergydasacoustic sensingmicroseismiccrosswell strain ratefracture driven interactionsfdidistributed acoustic sensinginjection allocationstrain rateutah forgeegsstimulation16b 78-3216a 78-32mircroseismicityneubrexraw datahdf5h5time gated
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