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"Effect of Pipe Diameter"×
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Ground Source Heat Pump Parameter Survey

Jul 31, 2013
1.42 MB
Publicly accessible
The purpose of this report is to investigate the effects of various parameters in a horizontal loop geothermal heat pump system. The obtained values include the temperature distribution over the entire system as well as the exiting temperature and bulk heat rate of the fluid. The ...
Authors
Gray, E. Wright State University
geothermalground source heat pumpparameter surveyeffect of specific heateffect of thermal conductivityeffect of pipe diametereffect of pipe lengtheffect of fluid velocitysurvey results

Recovery Act: Microhole Tubing Bending Report

Jan 01, 2012
Size unavailable
Publicly accessible
A downhole tubing bending study was made and is reported herein. This study developed a model to predict the shape of the pipe at downhole conditions and determines if the various pipe string sizes can reach a specified landing depth. The wellbore trajectory is described by this s...
Authors
Ruan, C. Impact Technologies LLC
geothermaltubingdrill pipedrillingmicroholemicroboretubing bendingwell constructionmodelabrasive slurryjet technologyegs

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

Testing LCM on a Large Scale for Geothermal Drilling Applications Using a Novel Experimental Setup

Apr 22, 2022
15.98 MB
Publicly accessible
Rheology data obtained from flow loop tests, performed using different lost circulation materials (LCM) to study their effect on fluid rheology and wellbore hydraulics. The sealing performance of different LCM was tested using different fracture sizes. Five academic papers / repor...
Authors
Mohamed, A. et al University of Oklahoma
geothermal drillinglost circulationsealing efficiencyrheologyhigh temperatureflow loop3d printingtemperaturecharacterizationdrilling fluid additivesshape memory polymergeothermal wellshpht challengesdrilling fluidwellbore hydraulicshole cleaningfluid stabilitysmart lcmht flow looplost circulation materialannular flowrheological propertiesgeothermalenergyviscosifierfiltration controlhphtgeochemistrywellboredrilling technologyexperimenttechnologyreportsgwmodeldrillingprocessed data

DCIF (Directional Cooling-Induced Fracturing) Westerly Granite AE Borehole Damage Effect Test (Task 3-0)

Jan 27, 2022
162.51 MB
Publicly accessible
Directional Cooling-Induced Fracturing (DCIF) experiments were conducted on three rectangular Westerly granite blocks (width=depth=4.0", height=2.0") which were preheated to 200, 400, and 600 degree C to induce damage (microcracks) with varying degrees. Liquid nitrogen was poured...
Authors
Nakagawa, S. Lawrence Berkeley National Laboratory
geothermalenergydirectional cooling induced fracturingdcifdirectional cooling-induced fracturingdamage effect testfracturemicrocrackthermal stressacoustic emissionaccousticsthermal fracturefailure testraw dataprocessed datastressbiaxial stresswesterly graniteborehole damage effecttestwesterlygranite

Utah FORGE: Well 16B(78)-32 Drilling Data

Jul 03, 2023
393.06 MB
Publicly accessible
This drilling data for Utah FORGE well 16B(78)-32 include a well survey, core summary, mud and mud temperature logs, daily reports of the drilling process, and additional data from the Pason oil and gas company. Well 16B(78)-32 serves as the production well for reservoir creation...
Authors
McLennan, J. et al Energy and Geoscience Institute at the University of Utah
geothermalenergywell 16b78-32utah forgewell 16b78-32 drillingwell 16b78-32 drilling datadrilling datautah forge drilling datawell 16b78-32 drilling logswell 16b78-32 logswell 16b78-32 daily reportswell 16b78-32 surveyutah forge drillingcore drillingcorepasonpason datamud temperature logsmud temperaturedaily reportscore summaryeavorinsulated drill pipeinsulated drill pipe testutah geothermalmud logslithologygeology

Coupling Subsurface and Above-Surface Models for Optimizing the Design of Borefields and District Heating and Cooling Systems

Jan 31, 2022
1.45 GB
Publicly accessible
Accurate dynamic energy simulation is important for the design and sizing of district heating and cooling systems with geothermal heat exchange for seasonal energy storage. Current modeling approaches in building and district energy simulation tools typically consider heat conduct...
Authors
Hu, J. et al Lawrence Berkeley National Laboratory
geothermal bofieldenergymodelica buildings librarytoughcouplingdistrict energy systemdistrict heatingdistrict coolinggeothermalborefieldsimulationmodelmodelingoptimizationenergy storageseasonal energy storagegeothermal heat exchangeground source heat pumpgshpcodepythonmodelica

Geothermal Reservoir Simulation Results in support of Feasibility Study of Direct District Heating for the Cornell Campus Utilizing Deep Geothermal Energy

Oct 29, 2019
1.62 GB
Publicly accessible
This dataset contains input data, code, ReadMe files, output data, and figures that summarize the results of a stochastic analysis of geothermal reservoir production from two potential geothermal reservoirs that were evaluated for the Cornell University Deep Direct-Use project. Th...
Authors
Smith, J. and Beckers, K. Cornell University
geothermalenergycornell universitylow-temperature geothermalreservoir simulationuncertainty analysistechno-economic analysisdirect-use heatingdistrict heatingnew york stateheat pumpslevelized cost of heat lcohexternality valuesenvironmental valueeconomic valuedirect usedducornelltrenton-black rivertough2petrasimmonte carlo analysismonte carlogeophiresstochastic analysis

DCIF Westerly Granite AE Stress Effect Test (Task 3-1)

Jul 08, 2021
216.62 MB
Publicly accessible
Directional Cooling-Induced Fracturing (DCIF) experiments were conducted on rectangular Westerly granite blocks (width=depth=4.0", height=2.0"). Liquid nitrogen was poured in a small, 1"-diameter copper cup attached to the top of the sample, and the resulting acoustic emissions (A...
Authors
Nakagawa, S. and Trzeciak, M. Lawrence Berkeley National Laboratory
geothermalenergythermal fracturingstress measurementfracturingprocessed datageophysicsstress testinggranitewesterly granitestressmicrofracturefracturedatatemperatureacoustic emissionacoustic emission locationacoustic emission rate

Utah FORGE: Report on Fiber Optic Monitoring of August 2025 Circulation and Huff and Puff Tests

Mar 06, 2026
14.67 MB
Publicly accessible
This is a technical report on the acquisition, processing and analysis of fiber optic data collected in the Utah FORGE 16B(78)-32 well during cross well circulation tests and huff and puff testing that were executed by Texas Tech University and California Statue University Long Be...
Authors
Jurick, D. et al Neubrex Energy Services (US), LLC
geothermalenergyfiber opticsrfs dssdssdasdtstexas techcsulbhuff and puffcross well circulationthermal datawell 16b16b78-32distributed acoustic sensingdistributed strain sensingdistributed temperature sensinggeophysicsprocessed datatechnical report

Utah FORGE: Laboratory Experiments Examining the Effect of Thermal and Mechanical Processes on Hydraulic Transmissivity Evolution

Apr 03, 2023
858.13 kB
Publicly accessible
Using laboratory slide-hold-slide experiments, at temperatures from 22 to 200 degrees C, to examine effects of fracture reactivation and quasi-static loading on the evolution of fluid transport properties of simulated fractures in Westerly granite. At all temperatures, the in-plan...
Authors
Lockner, D. et al United States Geological Survey
geothermalenergyutah forgehydraulic transmissivityfluid-rock interactionsshear fracturessealinggranite

High-Pressure and High-Temperature (HPHT) Lost Circulation Material (LCM) Testing

Nov 30, 2021
7.92 MB
Publicly accessible
High-pressure and high-temperature (HPHT) lost circulation material (LCM) rheology test results, LCM particle size distributions (PSD) analysis, and HPHT LCM fluid loss test results. Three academic papers / reports derived from this research are also presented.
Authors
Salehi, S. and Vivas, C. University of Oklahoma
geothermalenergylost circulation materialshpht filtrationfracture sealingparticle size distributionrheologydrilling fluid additivesgelationthermal degradationhigh pressure high temperaturepsdtemperaturemodeldrillingwellboreexperimenttechnologyprocessed datalcm

Improved Rare Earth Element Sorption from Simulated Geothermal Brines: Effect of Gassed versus Degassed Brines

May 24, 2016
167.85 kB
Publicly accessible
A study exploring sorption and stripping characteristics of sorption media when simulated geothermal brines are degassed or not degassed. Experiments were done at 70degC. The brines used in this study were formulated by Tusaar. The two brines used/simulated are labeled 1M and 1C...
Authors
Stull, D. Tusaar Corp.
geothermalmediarare earth elementsmedia sorptiondegassed brinemineral recoverysimulated brinereegasseddegassedstrip-elutionelutionsorption studypacked column

High-Pressure Combustion and Deflagration-to-Detonation Transition in Ethylene/Nitrous Oxide Mixtures

Nov 01, 2013
13.95 MB
Publicly accessible
In this paper, the combustion of nitrous oxide with a simple hydrocarbon, ethylene, at high initial pressures is investigated. A series of experiments were conducted using a stoichiometric C2H4-N2O mixture in a round, smooth-walled tube with initial pressures of 125 to 337 psi. ...
Authors
Grubelich, M. Sandia National Laboratories
geothermalcombustiondeflagrationdetonationethylene/nitrous oxide mixturesnitrous oxidehydrocarbonethylenehigh pressurestoichiometryreport

Supercritical Drilling Materials Analysis: Drilling and Completion Materials Database

Sep 18, 2025
457.8 kB
Publicly accessible
This dataset compiles information on geothermal wells drilled into supercritical and near-supercritical conditions, with a focus on drilling and completion materials, fluid chemistry, and laboratory validation studies. The data are drawn from well reports, scientific literature, a...
Authors
Kibikas, W. et al Sandia National Laboratories
geothermalenergysupercritical geothermaldrilling materialscompletion materialsgeothermal wellsdrill bitscasingdrill stringslinerscementdrilling fluidslost circulation materialslcmfluid chemistrymaterial performanceliterature reviewcasing connections

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

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

REE Adsorption Performance with Immobilized Caulobacter Biofilms

Apr 01, 2018
162.27 kB
Publicly accessible
This submission includes data collected from experiments on the performance of rare earth adsorption by immobilized bacteria that accompany the FY18 Q2 and Q3 quarter reports. Relevant information from these reports is included in a resource below. The spreadsheet below includes d...
Authors
Jiao, Y. and Park, D. Lawrence Livermore National Laboratory
geothermalenergyreerare earthelementadsorptionbiofilmcaulobacterbacteriabacterialcapacityweightbiomassthermostabilityterbiumtbbiosorptiongeofluidbrinefluidbioadsorptionbiochipsbiofilmsmutag

Recovery of Rare Earth Elements from Geothermal Fluids through Bacterial Cell Surface Adsorption

Jan 01, 2018
7.18 MB
Publicly accessible
We summarized the FY17 and part of FY18 results of the analysis of the effect of several parameters (e.g., total dissolved solids, specific competing metals, pH, and temperature) on REE recovery from geothermal brine in a manuscript that was submitted to Environmental Science & Te...
Authors
Jiao, Y. et al Lawrence Livermore National Laboratory
geothermalenergyreebrinefluidrare earthelementsbacteriacellsurfaceadsorptionbioengineeringmicrobemicrobialbiosorptionbioadsorptionlanthanide bindingtaglbtgeofluide. coligeochemicalgeochemistryfactors

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

Kinetics of Chlorite Dissolution at Elevated Temperatures and CO2 Conditions

Jul 01, 2013
860.02 kB
Publicly accessible
Methods and results of the Kinetics of Chlorite Dissolution at Elevated Temperatures and CO2 Conditions are described and discussed in the paper. Data from this experiment is included as a downloadable .xlsx spreadsheet in the linked GDR submission. Chlorite dissolution kinetics w...
Authors
Carroll, S. et al Lawrence Livermore National Laboratory
geothermalchloritekineticsco2temperaturekinetic rate lawdissolutionhigh temperaturegeochemistry

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

Directional Cooling-Induced Fracturing Westerly Granite Test Results

Dec 18, 2020
72.48 MB
Publicly accessible
Directional Cooling-Induced Fracturing (DCIF) experiments were conducted on a short, cylindrical sample of Westerly granite (diameter = 4 inches, height ~ 2 inches). Liquid nitrogen was poured in a copper cup attached to the top of the sample, and the resulting acoustic emissions ...
Authors
Nakagawa, S. Lawrence Berkeley National Laboratory
geothermalthermal crackingacoustic emissionstemperature changeslaboratory experimentwesterly granitegranitemoment tensorfractureseismicgeophysicsliquid nitrogenthermaltemperaturestimulationdirectional coolinginduced fracturingdirectional cooling-induced fracturingwellborestressvelocitytomographymicrocracking

Community Geothermal: Planning and Design of a Heating and Cooling System in Framingham, Massachusetts

Sep 01, 2024
3.57 MB
Publicly accessible
These reports, plans, and drawings review the achievements of Home Energy Efficiency Team (HEET) and its partners to plan and design a network of interconnected ground-source heat pump systems, or geothermal network, in an area encompassing multiple environmental justice (EJ) neig...
Authors
Varela Gutierrez, I. et al Home Energy Efficiency Team (HEET)
geothermalenergyheatingcoolingcommunitydesignstakeholdercommgeoheetenvironmental justiceground source heat pumpgshpframinghammassachusettsinterconnected loopsexpansion loopmonitoringmeteringoperationsmaintenancepermittingplanreport

Wister, CA Downhole and Seismic Data

Dec 18, 2010
768.6 MB
Publicly accessible
This submission contains Downhole geophysical logs associated with Wister, CA Wells 12-27 and 85-20. The logs include Spontaneous Potential (SP), HILT Caliper (HCAL), Gamma Ray (GR), Array Induction (AIT), and Neutron Porosity (NPOR) data. Also included are a well log, Injection T...
Authors
Akerley, J. Ormat Nevada Inc
geothermalwistercaliforniadrillingwell datapressuretemperaturespinnerptsgeophysicsdownholewell loginjection test12-27boreholelithologymineral compositionmud loggas analysisimperial countyspontaneous potentialspgamma raygrneutron porositynporarray inductionaitimperial valleyresistivity85-20circulation3d seismicseismicgeophysical surveyreflectionp-wavemulti-component3ckirchhoff pre stackrefractionshear waveexplorationrisk reduction
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