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

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...
Fu, P. et al Lawrence Livermore National Laboratory
Jan 31, 2012
2 Resources
0 Stars
Publicly accessible

Investigation of Stimulation-Response Relationships for Complex Fracture Systems in Enhanced Geothermal Reservoirs

Hydraulic fracturing is currently the primary method for stimulating low-permeability geothermal reservoirs and creating Enhanced (or Engineered) Geothermal Systems (EGS) with improved permeability and heat production efficiency. Complex natural fracture systems usually exist in ...
Fu, P. et al Lawrence Livermore National Laboratory
Jan 01, 2011
2 Resources
0 Stars
Publicly accessible

Modeling Responses of Naturally Fractured Geothermal Reservoir to Low-Pressure Stimulation

Hydraulic shearing is an appealing reservoir stimulation strategy for Enhanced Geothermal Systems. It is believed that hydro-shearing is likely to simulate a fracture network that covers a relatively large volume of the reservoir whereas hydro-fracturing tends to create a small nu...
Fu, P. and Carrigan, C. Lawrence Livermore National Laboratory
Jan 01, 2012
2 Resources
0 Stars
Publicly accessible

Generalized Displacement Correlation Method for Estimating Stress Intensity Factors

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...
Fu, P. et al Lawrence Livermore National Laboratory
Jan 01, 2012
1 Resources
0 Stars
Publicly accessible

Geomechanical Modeling for Thermal Spallation Drilling

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,...
Walsh, S. et al Lawrence Livermore National Laboratory
Aug 24, 2011
1 Resources
0 Stars
Publicly accessible

Grain-Scale Failure in Thermal Spallation Drilling

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 ...
Walsh, S. et al Lawrence Livermore National Laboratory
Jan 01, 2012
1 Resources
0 Stars
Publicly accessible

Simulation Tools for Modeling Thermal Spallation Drilling on Multiple Scales

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 ...
Walsh, S. et al Lawrence Livermore National Laboratory
Jan 01, 2012
1 Resources
0 Stars
Publicly accessible

Chemical Impact of Elevated CO2 on Geothermal Energy Production

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...
Carroll, S. et al Lawrence Livermore National Laboratory
Jan 01, 2013
3 Resources
0 Stars
Publicly accessible

Auto Indexer Auto-Indexer for Percussive Hammers: Vane Motor Dynamometer Testing

Objectives Options associated with geothermal drilling operations are generally limited by factors such as formation temperature and rock strength. The objective of the research is to expand the "tool box" available to the geothermal driller by furthering the development of a hig...
Su, J. Sandia National Laboratories
Jan 01, 2012
1 Resources
0 Stars
Publicly accessible

Energy Return On Investment of Engineered Geothermal Systems Data

The project provides an updated Energy Return on Investment (EROI) for Enhanced Geothermal Systems (EGS). Results incorporate Argonne National Laboratory's Life Cycle Assessment and base case assumptions consistent with other projects in the Analysis subprogram. EROI is a ratio o...
Mansure, C. Arthur Mansure
Jan 01, 2012
7 Resources
0 Stars
Publicly accessible

GHPsRUS Project

The GHPsRUS Project's full name is "Measuring the Costs and Benefits of Nationwide Geothermal Heat Pump Deployment." The dataset contains employment and installation price data collected by four economic surveys: (1)GHPsRUS Project Manufacturer & OEM Survey, (2) GHPsRUS Project G...
Battocletti, L. Bob Lawrence and Associates, Inc.
Jul 09, 2013
1 Resources
0 Stars
Publicly accessible

Beowawe Fluid Inclusion Gas Analysis

Fluid inclusion gas analysis for wells in Beowawe geothermal area, Nevada. Analyses used in developing fluid inclusion stratigraphy for wells and defining fluids across the geothermal fields. Each sample has mass spectrum counts for 180 chemical species.
Dilley, L. Hattenburg Dilley and Linnell
Jan 01, 2013
2 Resources
0 Stars
Publicly accessible

El Centro Fluid Inclusion Gas Analysis

Fluid inclusion gas analysis for wells in El Centro geothermal area, California. Analyses used in developing fluid inclusion stratigraphy for wells and defining fluids across the geothermal fields. Each sample has mass spectrum counts for 180 chemical species.
Dilley, L. Hattenburg Dilley and Linnell
Jan 01, 2013
3 Resources
0 Stars
Publicly accessible

Fallon Fluid Inclusion Gas Analysis

Fluid inclusion gas analysis for wells in Fallon geothermal area, Nevada. Analyses used in developing fluid inclusion stratigraphy for wells and defining fluids across the geothermal fields. Each sample has mass spectrum counts for 180 chemical species.
Dilley, L. Hattenburg Dilley and Linnell
Jan 01, 2013
2 Resources
0 Stars
Publicly accessible

Iceland Fluid Inclusion Gas Analysis

Fluid inclusion gas analysis for wells in Iceland. Analyses used in developing fluid inclusion stratigraphy for wells and defining fluids across the geothermal fields. Each sample has mass spectrum counts for 180 chemical species.
Dilley, L. Hattenburg Dilley and Linnell
Jan 01, 2013
3 Resources
0 Stars
Publicly accessible

Hawthorne Fluid Inclusion Gas Analysis

Fluid inclusion gas analysis for wells in the Hawthorne Army Ammunition Depot geothermal area, Nevada. Analyses used in developing fluid inclusion stratigraphy for wells and defining fluids across the geothermal fields. Each sample has mass spectrum counts for 180 chemical species.
Dilley, L. Hattenburg Dilley and Linnell
Jan 01, 2013
3 Resources
0 Stars
Publicly accessible

Glass Mountain Fluid Inclusion Gas Analysis

Fluid inclusion gas analysis for wells in Glass Mountain geothermal area, California. Analyses used in developing fluid inclusion stratigraphy for wells and defining fluids across the geothermal fields. Each sample has mass spectrum counts for 180 chemical species.
Dilley, L. Hattenburg Dilley and Linnell
Jan 01, 2013
2 Resources
0 Stars
Publicly accessible

Karaha Fluid Inclusion Gas Analysis

Fluid inclusion gas analysis for wells in Karaha Telga Bodegas geothermal reservoir, Indonesia. Analyses used in developing fluid inclusion stratigraphy for wells and defining fluids across the geothermal fields. Each sample has mass spectrum counts for 180 chemical species.
Dilley, L. Hattenburg Dilley and Linnell
Jan 01, 2013
1 Resources
0 Stars
Publicly accessible

Salton Sea Fluid Inclusion Gas Analysis

Fluid inclusion gas analysis for wells in Salton Sea geothermal area, California. Analyses used in developing fluid inclusion stratigraphy for wells and defining fluids across the geothermal fields. Each sample has mass spectrum counts for 180 chemical species.
Dilley, L. Hattenburg Dilley and Linnell
Jan 01, 2013
7 Resources
0 Stars
Publicly accessible

COSO Fluid Inclusion Gas Analysis

Fluid inclusion gas analysis for wells in COSO geothermal area, California. Analyses used in developing fluid inclusion stratigraphy for wells and defining fluids across the geothermal fields. Each sample has mass spectrum counts for 180 chemical species.
Dilley, L. Hattenburg Dilley and Linnell
Jan 01, 2013
29 Resources
0 Stars
Publicly accessible

GEOTHERM Data Set

GEOTHERM is a comprehensive system of public databases and software used to store, locate, and evaluate information on the geology, geochemistry, and hydrology of geothermal systems. Three main databases address the general characteristics of geothermal wells and fields, and the c...
Bliss, J. and Rapport, A. United States Geological Survey
Apr 29, 1983
2 Resources
0 Stars
Publicly accessible

Geothermal Exploration Cost and Time Metric

The National Renewable Energy Laboratory (NREL) was tasked with developing a metric in 2012 to measure the impacts of RD&D funding on the cost and time required for geothermal exploration activities. The development of this cost and time metric included collecting cost and time da...
Jenne, S. et al National Renewable Energy Laboratory
Jan 01, 2013
1 Resources
0 Stars
Publicly accessible

April 2013 Green Machine Florida Canyon Hourly Data

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...
Vanderhoff, A. ElectraTherm, Inc.
Apr 24, 2013
1 Resources
0 Stars
Publicly accessible

Argonne Geothermal Geochemical Database v2.0

A database of geochemical data from potential geothermal sources aggregated from multiple sources as of March 2010. The database contains fields for the location, depth, temperature, pH, total dissolved solids concentration, chemical composition, and date of sampling. A separate...
Harto, C. Argonne National Laboratory
May 22, 2013
1 Resources
0 Stars
Publicly accessible

Dixie Valley Engineered Geothermal System Exploration Methodology Project, Baseline Conceptual Model Report

The Engineered Geothermal System (EGS) Exploration Methodology Project is developing an exploration approach for EGS through the integration of geoscientific data. The Project chose the Dixie Valley Geothermal System in Nevada as a field laboratory site for methodlogy calibration...
Iovenitti, J. AltaRock Energy Inc
May 15, 2013
1 Resources
0 Stars
Publicly accessible
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