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Development of an Improved Cement for Geothermal Wells 2011 Progress Reports

This submission includes the University of Alaska Fairbanks Monthly Research Performance Progress Reports. The goal of this project is to develop an improved cement for geothermal wells.
Khataniar, S. Trabits Group, LLC
Jan 01, 2012
1 Resources
0 Stars
Publicly accessible

Development of an Improved Cement for Geothermal Wells 2012 Progress Reports

This submission includes the University of Alaska Fairbanks Monthly Research Performance Progress Reports. The goal of this project is to develop an improved cement for geothermal wells.
Khataniar, S. Trabits Group, LLC
Jan 01, 2013
1 Resources
0 Stars
Publicly accessible

Seismic Line Location Map, Hot Pot Project, Humboldt County, Nevada 2010

Seismic Line Location Map Hot Pot Project, Humboldt County, Nevada 2010. Detailed map (pdf) showing topographic base map, Township and Range layer, Oski BLM and private leases at time of survey, and locations, with selected shot points, of the five seismic lines.
Lane, M. Oski Energy LLC
Jan 01, 2010
1 Resources
0 Stars
Publicly accessible

Microhole Tubing Bending Report

A downhole tubing bending study was made and is reported herein. It contains a report and 2 excel spreadsheets to calculate tubing bending and to estimate contact points of the tubing to the drilled hole wall (creating a new support point).
Ruan, C. Impact Technologies LLC
Jan 01, 2012
3 Resources
0 Stars
Publicly accessible

Fully Coupled Geomechanics and Discrete Flow Network Modeling of Hydraulic Fracturing for Geothermal Applications

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...
Fu, P. et al Lawrence Livermore National Laboratory
Jan 01, 2011
2 Resources
0 Stars
Publicly accessible

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

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...
Carrigan, C. et al Lawrence Livermore National Laboratory
Jan 01, 2011
2 Resources
0 Stars
Publicly accessible

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

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

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

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

McGee Mountain Transmission Interconnection Feasibility Study

This 2010 study by ZGlobal, Inc. examines possible transmission interconnect opportunities, issues, customers,etc., for the McGee Mountain geothermal system. McGee Mountain is located in T45N, R27E in Humboldt County, northern Nevada. PDF Format, 833 kb file size. Geothermal Techn...
Zehner, R. Geothermal Technical Partners, Inc.
Jun 01, 2010
1 Resources
0 Stars
Publicly accessible

McGee Mountain Geoprobe Study, Humboldt County, Nevada

Geoprobes were developed by the environmental industry to collect water, gas and soil samples from contaminated sites at shallow depths (10-40 meters), with a minimum of environmental disturbance. A modified Geoprobe was used to collect bottom hole temperatures, and attempt to col...
Tullar, K. Geothermal Technical Partners, Inc.
Jun 19, 2010
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

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

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

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
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