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"heterogeneous rock"×

Operational Performance Requirements For Motor Power Sections Used in Geothermal Drilling Based Upon Minimum Specific Energy

Sep 10, 2014
869.71 kB
Publicly accessible
Operational performance requirements are needed to support development of specifications for downhole motor power sections to be used for drilling hard rock during geothermal wellbore construction. Theoretical torque specifications are derived based upon a widely-accepted rock-re...
Authors
Raymond, D. Sandia National Laboratories
geothermalmotordownholespecific energytorquepower sectionbit wearhydrostatic pressureheterogeneous rockheterogeneous geologynon-ideal drilling conditionspoor drilling conditionsoperationsperformance requirementsmotor power sectionsdrillingwellwellboreconstruction

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

Flow and Geomechanical Modeling for the VESTA Project

Oct 07, 2025
705.82 MB
Awaiting release
This dataset contains flow and geomechanical modeling results developed for the VESTA project, which investigates high-temperature aquifer thermal energy storage (ATES). Both generic and site-specific models were constructed to evaluate reservoir thermal and mechanical performance...
Authors
Zhang, Y. and Rutqvist, J. Lawrence Berkeley National Laboratory
geothermalenergyhigh-temperature aquifer thermal energy storagecoupled thermal-hydrological-mechnical modelvestaaquifer thermal energy storageatesht-atestough-flactoughitough2thmgeomechanical modelingflow simulationheat transportberngeneric modelgroundwater flowpressure distributiontemperature profilesmodeled datastrainpermeabilityflac3dreservoir simulationates simulation

Development of 3D Geological Model of Tuscarora Sandstone for Feasibility of Deep Direct-Use Geothermal at West Virginia University Main Campus

Oct 23, 2018
21.98 MB
Publicly accessible
The subsurface uncertainty at West Virginia University Main Campus is dominated by the uncertainty in the projections of geofluid flowrate in the target formation, the Tuscarora Sandstone. In this paper, three cores from the heterogeneous reservoir, available through West Virginia...
Authors
Moore, J. et al West Virginia University
geothermalenergydirect usecore analysispermeabilityddufeasibilitystudytuscarora sandstone3dgeologic modelgeologywvugrcpaperpresentationdataphotosthin sectionanalysisminipermeabilityclay-513preston-119deepreservoirparameter estimationgeofluidflow rate

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

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

3-D Geologic Controls of Hydrothermal Fluid Flow at Brady Geothermal Field, Nevada using PCA

Oct 01, 2021
7.12 MB
Publicly accessible
In many hydrothermal systems, fracture permeability along faults provides pathways for groundwater to transport heat from depth. Faulting generates a range of deformation styles that cross-cut heterogeneous geology, resulting in complex patterns of permeability, porosity, and hydr...
Authors
Siler, D. and Pepin, J. United States Geological Survey
geothermalenergypca3d geologic modelgeologic modelgeologycharacterizationmachine learningmlbhsbrady hot springsprincipal component analysisproductionstressfaultsrbradyhydrothermalgeologic structureunsupervised3d well datacodegeothermicgeophysics

WHOLESCALE Catalog of Rock Samples at San Emidio Nevada collected in January 2021 Version 2.0

Jan 12, 2021
21.28 kB
Publicly accessible
This submission includes an update to the WHOLESCALESamples2021January.xls file where the strikes and dips initially reported have been corrected to comply with the right hand rule. The updated excel file and a link to the original submission are included in this report. The ori...
Authors
Kleich, S. et al University of Wisconsin Madison
geothermalenergywholescalewaterholeobservationstresssystemspatialtemporalphysicsmodelinghydrologicthermalmechanicalsan emidionevadarock samplesgeologyimagesphotoscore samplesgeophysicssamplesrockraw data

Utah FORGE: Rock Properties

Apr 07, 2018
32.28 MB
Publicly accessible
This is an Excel spreadsheet that contains rock properties from several wells in the Utah FORGE study area. This includes a map of the wells. Data is described in the Final Topical Report included in the resources below.
Authors
Gwynn, M. Energy and Geoscience Institute at the University of Utah
geothermalenergyforgeutah forgerock propertiesroosevelt hot springsroosevelt hot springs rock propertiesresistivitytemperature plotsgammasonicdensityvelocitycaliperporositymaficslocation mapdrilling datalog responsequartzbulk densityksparmagnetic susceptibilitycorerock propsutahrockpropertieswell dataresourcecharacterizationgeomechanicsegsmilford

EGS Collab Experiment 2: Core Photographs and Descriptions

Aug 05, 2021
136.42 GB
Publicly accessible
This submission contains photographs of rock core collected from EGS Collab Experiment 2 (and 3) boreholes. Cores were generally photographed in about 1-foot sections using Nikon D3300 DSLR cameras from two angles about 90 degrees apart, wet and dry. Core photos are provided here ...
Authors
Kneafsey, T. et al Lawrence Berkeley National Laboratory
geothermalenergyegs collabexperiment 24100 levelsanford underground research facilitycore photographscoredrillinggeologysurfpanoramic photographscore logsanomaly logs

WHOLESCALE Catalog of Rock Samples at San Emidio Nevada collected in January 2021

Jan 12, 2021
857.7 MB
Publicly accessible
This submission contains information on thirty-six rock samples collected from San Emidio, Nevada during January, 2021 for Subtask 2.3 of the WHOLESCALE project. The following resources include a .zip of rock sample photos taken in the field, a .zip of rock sample photos taken in ...
Authors
Kleich, S. et al University of Wisconsin Madison
geothermalenergywholescalewaterholeobservationstresssystemspatialtemporalphysicsmodelinghydrologicthermalmechanicalsan emidionevadarock samplesfieldsamplessamplerock samplegeologyimagesphotoscore samples

Technical Report-Rare Earth Element Data Associated with Oil and Gas Reservoir Rock

Jul 01, 2017
4.49 MB
Publicly accessible
This work was developed to complement the geochemical assessments of produced water and geothermal water samples. Specifically, this task was designed to test the influence of reservoir rock-type and corresponding mineralogy/geochemistry on the concentrations of REE found in oil a...
Authors
McLaughlin, J. et al University of Wyoming
geothermalenergyrare earth elementproduced watersreecoproducedresourcesgeochemicalisotope concentrationgeochemistryoil and gasconcentrationgeologyrock chemistrygeologicinfluenceminerologybrine study

Effective Elastic and Neutron Capture Cross Section Calculations Corresponding to Simulated Fluid Properties from CO2 Push-Pull Simulations

Mar 07, 2018
4.46 MB
Publicly accessible
The submission contains a .xls files consisting of 10 excel sheets, which contain combined list of pressure, saturation, salinity, temperature profiles from the simulation of CO2 push-pull using Brady reservoir model and the corresponding effective compressional and shear velocity...
Authors
Chugunov, N. and Altundas, B. Lawrence Berkeley National Laboratory
geothermalenergyco2carbon dioxidepush-pullactive seismicwell loggingegsneutron capturesnuparstimulationsensitivity analysischaracterizationfaultfracturefluidbrine

Utah FORGE 5-2615: Determination and Analysis of Thermo-poromechanical Response of Fractured Rock 2024 Annual Workshop Presentation

Sep 01, 2024
63.48 MB
Publicly accessible
This is a presentation on the Determination and Modeling-Informed Analysis of Thermo-poromechanical Response of Fractured Rock for Application to FORGE by the University of Oklahoma, presented by Ahmad Ghassemi. This video presentation discusses how to improve understanding and co...
Authors
Ghassemi, A. Energy and Geoscience Institute at the University of Utah
geothermalenergyutah forgeuniversity of oklahomatpmthermo-hydro-mechanicalrock mechanicsporositythermoporomechanicaldfitreservoir stress modellingrock stressmicro-seismicityegsvideopresentation

Chemical Impact of Elevated CO2 on Geothermal Energy Production

Jan 01, 2013
2.13 MB
Publicly accessible
Numerical simulations have shown that the use of supercritical CO2 instead of water as a heat transfer fluid yields significantly greater heat extraction rates for geothermal energy. If this technology is implemented successfully, it could increase geothermal energy production and...
Authors
Carroll, S. et al Lawrence Livermore National Laboratory
geothermalco2-egsgeochemical reactionco2egsgeochemistrydissolutionprecipitationsequestrationsimulationchlorite dissolution kineticsmineral scalingmineral alterationfracture permeabilitygeochemical alterationmodelingtaupo volcanic zonenew zealandgreywackerhyolitedaciteegs-co2rock-gas interaction

Hard Rock Drilling Optimization Software

Oct 07, 2021
284.26 MB
Publicly accessible
The main objective of the developed software is to reduce the cost per foot during drilling, in other words, optimize the drilling operational parameters in achieving optimum ROP while avoiding critical operational parameters due to either low ROP, drillstring vibration, accelerat...
Authors
Al Dushaishi, M. and Hareland, G. Oklahoma State University
geothermal drillingdrilling optimizationdrilling simulationhard rock drillinggeothermalsoftwareoptimizationsimulationhard rockdrillingdrilling analysisguicustom softwaremodel

Thermal Drawdown Induced Flow Channeling in Fractured Geothermal Reservoirs: Rock Mechanics and Rock Engineering

Nov 15, 2015
16.88 MB
Publicly accessible
We investigate the flow-channeling phenomenon caused by thermal drawdown in fractured geothermal reservoirs. A discrete fracture network-based, fully coupled thermal "hydrological" mechanical simulator is used to study the interactions between fluid flow, temperature change, and t...
Authors
Fu, P. et al Lawrence Livermore National Laboratory
geothermalthermal drawdownflow channelingthermomechanical couplingreservoir simulationstimulationegsenhanced geothermal reservoirsexplosive fracturing

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

Purdue University: Results of B-Value Tests for Rock Saturation

Jun 20, 2022
2.73 MB
Publicly accessible
This dataset includes an Excel file with the results of B-value tests to determine the magnitude of the back pressure required for full saturation of Sierra White granite samples. Test were conducted on cylindrical rock specimens of Sierra White granite in a custom water pressuriz...
Authors
Han, K. et al Purdue University
geothermalenergyutah forgeb-valuesaturationrock saturationgranitelab testmaterialmaterial siencesierra white granitetesttestingmaterialsrockb valueprocessed data

SSGF Mineral Major Elements and Lithium Concentration

May 01, 2023
1.38 MB
Publicly accessible
Presented are major element and lithium concentrations of minerals from the Salton Sea Geothermal Field (SSGF), located in the Imperial Valley, California. With a recent increase in demand for lithium, the area is now being studied as a source of geothermal brine for lithium extr...
Authors
Humphreys, J. et al Lawrence Berkeley National Laboratory
geothermallithiummineralrockssalton sea geothermal fieldbrinelithium isotopteschloritegeologygeochemistryhydrothermalisotope quantificationextractionsalton sealithium valleygeothermal brineimperial countyraw data

Reservoir Stimulation Optimization with Operational Monitoring for Creation of EGS

Sep 15, 2014
21.38 MB
Publicly accessible
EGS field projects have not sustained production at rates greater than 1/2 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, igneo...
Authors
A., C. Pacific Northwest National Laboratory
geothermalstressvolume expansionpermeabilityfracturingrheoreversible fluidsxmtacoustic emissionlaboratory scaleegsigneous rockacoustic signaturefracture responsex-ray microtomography

Fallon FORGE: Well Log Database

Jul 03, 2018
331.25 MB
Publicly accessible
Master well database for all logs and other well data pertaining to the Fallon FORGE site. Tables are formatted in NGDS Teir 3 schema where appropriate; redundancies between tables are omitted, and should be queried off of the main WellHeader table. All relationships are set on th...
Authors
Blankenship, D. Sandia National Laboratories
geothermalenergyfallonnevadaforgeegslogswell datawell loggeophysicsgeologygeochemistryrock propertieslithologywelllogcorecuttingsfracturesboreholeaqueous chemistrychemistryrockdensitynaturalinducedmagnetic susceptibilitypressuretemperaturespinnerptswireline

Drill Core Major, Trace and Rare Earth Element Analyses from Wells RN-17B and RN-30, Reykjanes, Iceland

Apr 01, 2015
246.56 kB
Publicly accessible
Analytical results for X-ray fluorescence (XRF) and inductively coupled plasma mass spectrometry (ICP-MS) measurement of major, trace and rare earth elements in drill core from geothermal wells in Reykjanes, Iceland. Total Fe was analyzed as FeO, therefore is not included under t...
Authors
Fowler, A. University of California
geothermaliceland deep drilling projectrn-17brn-30drill corereewhole rockrare earth elementicealnd deep drilling projectusgin content modelngds content modelaasg geothermal datarock chemistrycore analysis

Rare Earth Geochemistry of Rock Core form WY Reservoirs

Oct 01, 2016
501.5 kB
Publicly accessible
These data include major, minor, trace and rare earth element concentration of geologic formations in Wyoming oil and gas fields. *Note Link below contains updated version of spreadsheet (6/14/2017)
Authors
Quillinan, S. et al University of Wyoming
geothermalenergyrare earth elementlithlogicwyomingrock corengds content modelusgin content modeloil and gascoproduced

SSGF Trace Element Concentrations

Jan 08, 2026
706.57 kB
Awaiting release
Presented are trace element concentrations of minerals from the Salton Sea Geothermal Field (SSGF), located in the Imperial Valley, California. With a recent increase in demand for lithium, the area is actively being studied as a source of geothermal brine for lithium extraction. ...
Authors
Kovalick, A. et al University of California Riverside
geothermaltrace elementssalton sea geothermal fieldrocksmineralhydrothermallithium valleygeothermal brineraw dataimperial countyssgfimperial valleyrare earth elementsreecritical mineralsmnznconibrine-rock reactionrock samplesbrine samplesrhyolitic domesdurmid hillsschmitt and hulenca 2-14wellschemistryfluid chemistrygeochemistrysalton sealithium extraction
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