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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

Generalized Displacement Correlation Method for Estimating Stress Intensity Factors

Jan 01, 2012
1.25 MB
Publicly accessible
This paper presents a generalized form of the displacement correlation method (the GDC method), which can use any linear or quadratic finite element type with homogeneous meshing without local refinement. These two features are critical for modeling dynamic fracture propagation pr...
Authors
Fu, P. et al Lawrence Livermore National Laboratory
geothermalfracture mechanicsstress intensity factordisplacement correlation methodquarter-point elementfracture propagationfracture interactiongdcgeneralized

Simulating Complex Fracture Systems in Geothermal Reservoirs Using an Explicitly Coupled Hydro-Geomechanical Model

Jan 01, 2011
6.5 MB
Publicly accessible
Low permeability geothermal reservoirs can be stimulated by hydraulic fracturing to create Enhanced (or Engineered) Geothermal Systems (EGS) with higher permeability and improved heat transfer to increase heat production. In this paper, we document our effort to develop a numerica...
Authors
Carrigan, C. et al Lawrence Livermore National Laboratory
geothermalrock mechanicshydraulic fracturingenhanced geothermal systemegssimulationhydrohydrofrackingflowmodelmodelingreservoirfracking

Drilling Monitoring Program: Computer Program on Heat Transfer Temperature Distribution Hydraulic Calculations for Abrasive Jet Drilling

Jan 01, 2011
1.71 MB
Publicly accessible
A program was created to evaluate the downhole conditions occurring in a FLASH ASJ drilling system. the program is meant to aid the operator of a coiled tubing rig in maintaining optimum drilling conditions.
Authors
Ozbayoglu, E. Impact Technologies LLC
geothermaldrillingmonitoringmicroholemicroboreunderbalancedcoiled tubingflash asj drilling systemabrasive jet drillingheat transfer

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

Mapping Fracture Network Creation with Microseismicity During EGS Demonstrations

Apr 18, 2014
9.07 MB
Publicly accessible
This a report for the project "Mapping Fracture Network Creation with Microseismicity During EGS Demonstrations". Effective enhanced geothermal systems (EGS) require optimal fracture networks for efficient heat transfer between hot rock and fluid. Microseismic mapping is a key too...
Authors
Templeton, D. et al Lawrence Livermore National Laboratory
geothermalmicroseismicegsfracture creationmappingalgorithmmicroseismicityfracturingfracturenewberry

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

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: Continuous Active Source Seismic Monitoring (CASSM)

Jan 06, 2025
15.42 GB
Publicly accessible
The dataset contains continuous active-source seismic monitoring (CASSM) data collected during EGS Collab Experiment 2, conducted from February to September 2022 at the Sanford Underground Research Facility in Lead, South Dakota. This experiment aimed to investigate enhanced geoth...
Authors
Hopp, C. et al Lawrence Berkeley National Laboratory
geothermalenergyegs collabcassmseismicactive-sourcesurfstimulationcrosswellseismic monitoringraw data3caccelerometerthre componentcalibrationtechnical reportborehole arrayshot recordsactive-source monitoringexperiment 2triggeredtriggered recording systemgeophysicsegs

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

GOOML Big Kahuna Forecast Modeling and Genetic Optimization Files

Jun 30, 2021
13.6 MB
Publicly accessible
This submission includes example files associated with the Geothermal Operational Optimization using Machine Learning (GOOML) Big Kahuna fictional power plant, which uses synthetic data to model a fictional power plant. A forecast was produced using the GOOML data model framework ...
Authors
Buster, G. et al Upflow
geothermalenergymachine learningoptimizationoperationssynthetic datapower plantbig kahunagoomlgenetic optimizationforecastinputsoutputsconfigurationexamplephygnnphysics guided neural networkssteamfieldsteam fieldwellsflash plantsneural networkdataprocessed datacodepythonsimulationmodel