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"grain-scale thermomechanics"×

Simulation Tools for Modeling Thermal Spallation Drilling on Multiple Scales

Jan 01, 2012
633.76 kB
Publicly accessible
Widespread adoption of geothermal energy will require access to deeply buried resources in granitic basement rocks at high temperatures and pressures. Exploiting these resources necessitates novel methods for drilling, stimulation, and maintenance, under operating conditions that ...
Authors
Walsh, S. et al Lawrence Livermore National Laboratory
geothermalthermal spallation drillingnumerical modelingengineered geothermal systemsegsgranitic basement rocksfluid dynamicsheat transfergrain-scale thermomechanicsunified tool

Grain-Scale Failure in Thermal Spallation Drilling

Jan 01, 2012
646.35 kB
Publicly accessible
Geothermal power promises clean, renewable, reliable and potentially widely-available energy, but is limited by high initial capital costs. New drilling technologies are required to make geothermal power financially competitive with other energy sources. One potential solution is ...
Authors
Walsh, S. et al Lawrence Livermore National Laboratory
geothermalthermal spallation drillingthermomechanical processesmodelinggrain-scale mechanics

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 5-2615: Well 58-32 and 78-32 Poroelastic Properties

Oct 31, 2022
59.49 MB
Publicly accessible
This dataset contains laboratory measurements of poroelastic properties of granite samples from Utah FORGE wells 58-32 and 78-32. The data include permeability, grain bulk modulus, drained bulk modulus, Skempton's pore pressure coefficient, and Biot's effective stress coefficient....
Authors
Ghassemi, A. and Zhou, X. University of Oklahoma
geothermalenergyporoelasticityutah forgeeffective stressbulk modulusgrain modulusporoelastic expansion coefficientpermeabilityutah58-3278-32pore pressureconfining pressureskemtpon coefficientgeologyprocessed data

Strengthening Effects of Surface Chemistry on the Consolidation of Silicate-Based Geomaterials Experimental Data

Jun 21, 2024
129.66 MB
Publicly accessible
This dataset contains experimental data and scanning electron microscope (SEM) images generated during a study on the effects of surface chemistry on the mechanical consolidation of silicate-based geomaterials. The experiments were performed at Sandia National Laboratories in Albu...
Authors
Choens, R. et al Sandia National Laboratories
energypowersurface chemistrychemistrygeomaterialssilicate-baseddatascanning electron microscopematerials sciencegeothermal energysandia national laboratoriesmaterial chemistry

University of Illinois Campus Deep Direct-Use Feasibility Study Thermal Properties of Geologic Formations in Illinois Basin

Mar 30, 2018
Size unavailable
Publicly accessible
Thermal property data for rocks and and minerals and unconsolidated (glacial) sediments units from within and outside the Illinois Basin were compiled for modeling heat transport in the subsurface.
Authors
Lin, Y. et al University of Illinois
geothermalenergyddudeep direct-useuniversity of illinoisillinois basinthermal propertiesgeologic formationsthermophysics

REE Sorption Study of Seived 50 +100 Mesh Fraction of Media 1 in Brine 1 at Different Concentrations of REE at 70C

Jun 29, 2015
269.69 kB
Publicly accessible
This dataset shows the sorption capacities of smaller grain size (-50 +100 mesh) of media #1 in brine #1 at different starting concentrations of REE's at elevated temperature of 70C. The experimental conditions are 2g of 50 +100 mesh media #1 to 150mL of REE solution at concentrat...
Authors
Garland, G. Tusaar Corp.
geothermalmedia 1brine 1elevated temperature 70c-50 100 seivedph 5.5shakertablemedia #1brine #1-50 +100 seived70csorptionshaker tableshaker testshaker bathsequestrationreerare earth elementsrecoveryextractionmineral recoverybrinebrine studychemistryaqueous chemistryseive

Community Resilience through Low-Temperature Geothermal Reservoir Thermal Energy Storage

Jan 29, 2022
912.28 MB
Publicly accessible
Submitted data include simulations related to underground thermal battery (UTB) simulations described in Modeling and efficiency study of large scale underground thermal battery deployment, presented at GRC, October 2021. The UTB is comprised of a tank of water, a helical heat ex...
Authors
Nico, P. et al Lawrence Berkeley National Laboratory
geothermalenergyground source heat pumpgshpheat pumpunderground thermal batteryutbthermal storagephase change materialheat exchangermodelsimulationmodelingenergy storagebatteryalternative technologyperformance modelcost reductionlow-cost alternative

Fallon FORGE: Gravity and Magnetics Data

Mar 09, 2018
5.68 MB
Publicly accessible
This package contains principal facts for new gravity data collected September November 2017 in support of the Fallon FORGE project. Also included are rock core density and magnetic susceptibility data for key core intervals, used in modeling 2D and 3D gravity inversions. Indivi...
Authors
Blankenship, D. et al Sandia National Laboratories
geothermalenergyforgeegsfallongravitynevadadensitymagnetic susceptibilityvetted-nonvmagneticsbch-3foh-2sw51-20bunejug mountains3dinversiongeophysicsgravmagrock densityinverse modelgeospatial datadata

Utah FORGE 1-2410: Final Report on the Development of a Smart Completion and Stimulation Solution

Aug 21, 2025
982.73 kB
Publicly accessible
This report details the work Welltech has done to provide true zonal isolation of the geothermal reservoir across multiple zones and cycles, enabling effective stimulation and repeated treatments of selected zones. The project included a literature review, small-scale experimentat...
Authors
Esqutin, Y. Welltech Inc.
geothermalenergyutah forgewelltechisolation toolsmetal expandable packerhthpannular isolationwell integretyzonal isolationstimulationzonal treatmentsmall-scalefull-scaledocumentationfinal reporttechnical report

Devices Suitable for Sectional Isolation Along Both Cased and Open-hole Wellbores Large-scale Test Setup

Jan 31, 2023
5.25 MB
Publicly accessible
The main goal of this project is to develop an annular isolation system capable to withstand geothermal downhole conditions and mitigate the problems experienced by conventional packers in FORGE wells. This large-scale set-up report is about the system that has been constructed to...
Authors
Teodoriu, C. et al Welltec
geothermalenergywellborecasingdrillingtechnicalassessmentstimulationforgeegs

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

Utah FORGE 2-2404: The University of Oklahoma, Application of Advanced Techniques for Determination of Reservoir-Scale Stress State at Utah FORGE Final Report

Jun 30, 2025
3.73 MB
Publicly accessible
This final report summarizes the work done on Utah FORGE project 2-2404. The project aimed to develop a methodology integrating alternative well bore and core-based methods and reservoir-scale focal mechanisms (FM) to better estimate the reservoir stress at FORGE. The project obje...
Authors
Ghassemi, A. The University of Oklahoma
geothermalenergyutah forgeegswell borecore-basedfocal mechanismsreservoir stressfinal reporttechnical reportanelastic strain recoverydifferential strain curvefracture mechanicsdrilling-induced cracksnear-wellbore stress

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

Utah FORGE 2-2404: Application of Advanced Techniques for Determination of Reservoir-Scale Stress State 2024 Annual Workshop Presentation

Aug 28, 2024
83.22 MB
Publicly accessible
This is a presentation on the Application of Advanced Techniques for Determination of Reservoir-Scale Stress State at FORGE by the University of Oklahoma, presented by Ahmad Ghassemi. This video discusses how magnitude and orientation of natural in-situ principal stresses at dept...
Authors
Ghassemi, A. et al Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgein-situ stressreservoir stress stateuniversity of oklahomadfitwellbore stressnormal-strike-slip faultgeomechanicscore testingvideopresentationegs

Utah FORGE 2-2404: Application of Advanced Techniques for Determination of Reservoir-Scale Stress State at Utah FORGE 2023 Annual Workshop Presentation

Sep 08, 2023
67.53 MB
Publicly accessible
This is a presentation on the Application of Advanced Techniques for Determination of Reservoir-Scale Stress State at Utah FORGE project by the University of Oklahoma, presented by Dr. Ahmad Ghassemi, McCasland Chair Professor. The project's objective was to develop a methodology ...
Authors
Ghassemi, A. University of Oklahoma
geothermalenergyannual workshop2023reservoir stressstress statein-situ stressinduced seismicitymitigationstress modelingredistributionpermeability evolutionutah forgeegsreservoir stress redistribution

Coordinating Permit Offices and the Development of Utility-Scale Geothermal Energy

Sep 30, 2013
1.81 MB
Publicly accessible
This study examines various forms of coordinating permit offices at the state and federal level in the western United States, discusses inefficiencies and mitigation techniques for permitting natural resource projects, analyzes whether various approaches are easily adaptable to ut...
Authors
Young, K. et al National Renewable Energy Laboratory
geothermalenergyutility-scalepower plantregulationpolicycoordinating permit officespermitpermittingregulatoryregulatory roadmaprapidblmhawaiialaskaenvironmentaleabureau of land managementgeothermal regulatory roadmapgrradaptability

University of Illinois Campus Deep Direct-Use Feasibility Study Geological Characterization of the Mt. Simon Sandstone

Mar 30, 2018
Size unavailable
Publicly accessible
These studies undertook detailed analyses of the Mt. Simon Sandstone in the Illinois Basin for geological storage and sequestration, and brine extraction.
Authors
Lin, Y. et al University of Illinois
geothermalenergyddudeep direct-useuniversity of illinoismt. simon sandstoneco2carbon dioxidesequestrationgeologydiagenesisplumereservoir modelingreservoir characterizationdepositionchampaign countydecaturillinois basin

Utah FORGE: Targeting Geothermal Resources with Geodetic Strain Data Paper

Oct 01, 2004
Size unavailable
Publicly accessible
The paper linked below offers an initial assessment of a new method to target potential geothermal resources on the regional scale. The method is based on seeking relationships between geologic structures and geodetic observations of regional tectonic strain.
Authors
Blewitt, G. et al Energy and Geoscience Institute at the University of Utah
geothermalforgeutah forgestraingreat basin strainegsgeodetictensorsecond invariantgeodesynevadautahratecrustalgpsfaultorientationmagnitude

In-Situ Process for Sorption and Stripping of Rare Earth Elements from Simulated Geothermal Brine

May 24, 2016
14.05 kB
Publicly accessible
Description of a conceptual commercial process to remove rare earth elements (REEs) from geothermal brine, based on a small-scale laboratory experiment to load, strip, and regenerate a ligand-based media used to adsorb REEs from a simulated brine doped with known mineral concentra...
Authors
Stull, D. Tusaar Corp.
geothermalbrinerare earth elementsreeadsorptionmineral recoveryprocesssimulated brinebrine studymineral doping

Dynamic Earth Energy Storage: Terawatt-year, Grid-scale Energy Storage Using Planet Earth as a Thermal Battery (GeoTES): Phase I Project Final Report

Sep 02, 2022
18.25 MB
Publicly accessible
Final report for the DOE GTO funded research on geologic thermal energy storage (GeoTES), or commonly known as reservoir thermal energy storage (RTES). The results described in this report shed light on various aspects of RTES including project siting, operational performance, m...
Authors
Atkinson, T. et al Idaho National Laboratory
geothermalenergyrtesgeotesstoragethermalmodelingtoughmoosegeochemistrytesthermal energy storageearth energy storagegrid-scalegeologicreservoir

Regulatory and Permitting Information Desktop (RAPID) Toolkit

Sep 30, 2014
18.76 MB
Publicly accessible
The Regulatory and Permitting Information Desktop (RAPID) Toolkit combines the former Geothermal Regulatory Roadmap, National Environmental Policy Act (NEPA) Database, and other resources into a Web-based tool that gives the regulatory and utility-scale geothermal developer commun...
Authors
Young, K. and Levine, A. National Renewable Energy Laboratory
geothermalenergyregulatoryrapiddatabasepermittingtoolkitroadmapregulatory roadmapnepapermitlibrarybest practicesblmrapid toolkitgrcgeothermal resource councilbulk transmissionnational environmental policy acteaenvironmentalassessment

Devices Suitable for Sectional Isolation Along Both Cased and Open-hole Wellbores Pipe Preparation Report

Mar 31, 2023
3.14 MB
Publicly accessible
The main goal of this project is to develop an annular isolation system capable to withstand geothermal downhole conditions and mitigate the problems experienced by conventional packers in FORGE wells. This pipe preparation report is based on the test pipe that was procured and pr...
Authors
Teodoriu, C. et al Welltec
geothermalenergywellborecasingdrillingtechnicalassessmentstimulationforgeegs

April 2013 Green Machine Florida Canyon Hourly Data

Apr 24, 2013
11.12 kB
Publicly accessible
Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant...
Authors
Vanderhoff, A. ElectraTherm, Inc.
geothermalelectrathermorcpowerlow temperaturegreen machinemicro geothermal power plantorganic rankine cycleflorida canyonorc datahourlydatahourly datacoproducedmicro geothermaloperationproductionsmall scale

May 2013 Green Machine Florida Canyon Hourly Data

May 30, 2013
26.61 kB
Publicly accessible
Employing innovative product developments to demonstrate financial and technical viability of producing electricity from low temperature geothermal fluids, coproduced in a mining operation, by employing ElectraTherm's modular and mobile heat-to-power "micro geothermal" power plant...
Authors
Vanderhoff, A. ElectraTherm, Inc.
geothermalelectrathermorcpowergreen machinemicro geothermal power plantorganic rankine cyclelow temperatureflorida canyonhourly datacoproducedmicro geothermaloperationproductionsmall scaledata
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