2006 EGS Program Review

An EGS Program Review was held in Golden, Colorado, on July 18 to 19, 2006. The objective was to assess the present status of the EGS program, identify any gaps in the program, and plan a path forward. Copies of the presentations are available below formatted as Adobe Acrobat PDFs. Download Adobe Reader.

EGS Program Review Report

The 2006 EGS Program Review afforded an opportunity for geothermal researchers to meet in an informal atmosphere and share the results of their research. For DOE, the meeting represented an important checkpoint on the road towards achieving the EGS Program's goals. That progress is documented in this report (PDF 1.36 MB).

Fracture Mapping and Monitoring

Evaluating Permeability Enhancement Using Electrical Techniques, John Pritchett (PDF 1.25 MB)
Real-time Fracture Monitoring with Seismic Waves, Jose Rial (PDF 1.66 MB)
Evaluating and Managing the Impact of Induced Seismicity on EGS, Ernie Majer (PDF 1.72 MB)
Seismic (MEQ) Characterization of EGS Fracture Network Lifecycles, Gillian Foulger (PDF 655 KB)

Fracture Stimulation

Chemical Stimulation of Engineered Geothermal Systems, Pete Rose (PDF 2 MB)
Evaluation of Oil—Industry Stimulation Practices for Engineered Geothermal Systems, Peter Van Dyke (PDF 533 KB)
Idaho National Laboratory's EGS Research Projects, Joel Renner (PDF 108 KB)
Fracture Evolution Following a Hydraulic Stimulation within an EGS Reservoir, Pete Rose (PDF 1.37 MB)

Fracture Mechanics/Permeability

Prediction and Control of Attributes of Induced Fractures in EGS, Russell Detwiler (PDF 1.05 MB)
Stress- and Chemistry Mediated Permeability Enhancement/Degradation in Stimulated Critically-Stressed Fractures, Derek Elsworth (PDF 2.69 MB)
Fracture Propagation and Permeability Change under Poro-thermoelastic Loads & Silica Reactivity in Enhanced Geothermal Systems, Ahmad Ghassemi (PDF 130 KB)
Experimental and Analytical Research on Fracture Processes in Rock, Herbert Einstein (PDF 1.09 MB)

Fracture Chemistry/Petrology

Geothermal Reservoir Dynamics - TOUGHREACT, Karsten Pruess (PDF 1.01 MB)
Geochemical Study of the Effects of Fluid Injection at EGS Sites, Mack Kennedy (PDF 1.2 MB)
Geochemical Enhancement of Enhanced Geothermal System Reservoirs: An Integrated Field and Geochemical Approach, Joe Moore (PDF 2.02 MB)
Models of Subsurface Rock-Water Chemical Processes Affecting Fluid Flow, John Weare (PDF 1.55 MB)
Identifying Fracture Types and Relative Ages Using Fluid Inclusion Stratigraphy, Lorie Dilley/Dave Norman (PDF 490 KB)

Field Projects

Coso — Creation of an Engineered Geothermal System through Hydraulic and Thermal Stimulation, Pete Rose (PDF 2.25 MB)
Technical Feasibility of an EGS Development at Desert Peak, Nevada, Ann Robertson-Tait (PDF 2.78 MB)

Systems Analysis

Using CO₂ as Working Fluid in EGS to Combine Energy Extraction with Sequestration of Carbon, Karsten Pruess (PDF 1.63 MB)
EGS Database Development, Sue Petty (PDF 663 KB)
RISK ASSESSMENT - Method and Results for the Geothermal Technology Program, Gerry Nix (PDF 1 MB)

Looking Forward

Energy Recovery from Enhanced/Engineered Geothermal Systems (EGS) - Assessment of Impact for the US by 2050, Jeff Tester (PDF 2.08 MB)
EGS Roadmap, Clay Nichols (PDF 466 KB)

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