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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
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Brady Geothermal Field PoroTomo Laboratory Deployment Map
Map of the PoroTomo Laboratory at Brady Field, Nevada. Map includes locations of GPS Stations, Shaker Stations, Vibroseis Sites, Seismometers, Fiber-Optic Cables, and wells
Lopeman, J. University of Wisconsin
Mar 01, 2016
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Validation of Innovative Exploration Technologies for Newberry Volcano: Drill Site Location Map
Newberry seeks to explore "blind" (no surface evidence) convective hydrothermal systems associated with a young silicic pluton on the flanks of Newberry Volcano. This project will employ a combination of innovative and conventional techniques to identify the location of subsurface...
Jaffe, T. Davenport Newberry Holdings, LLC
Jan 01, 2012
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Development of a Downhole Tool Measuring Real-Time Concentration of Ionic Tracers and pH in Geothermal Reservoirs
For enhanced or Engineered Geothermal Systems (EGS) geothermal brine is pumped to the surface via the production wells, the heat extracted to turn a turbine to generate electricity, and the spent brine re-injected via injection wells back underground. If designed properly, the sub...
Hess, R. et al Sandia National Laboratories
Mar 31, 2014
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Brady's Geothermal Field Active Source Seismic Survey MetaData
Sweep parameters, source locations and trigger timing for the four Phases of active source seismic data acquisition.
Robertson, M. University of Wisconsin
Mar 28, 2016
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Pressure Sensor and Telemetry Methods for Measurement while Drilling in Geothermal Wells
Project status report as of end of 2011. Key milestones and accomplishments in the year 2011 include:
Proof of feasibility of analog and digital components with their lifetime tested for more than 500 hours at 300 degrees C,
Demonstration of ceramic-based packaging capable of su...
Vert, A. GE Global Research
Jan 01, 2012
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Thermal Drawdown Induced Flow Channeling in Fractured Geothermal Reservoirs: Rock Mechanics and Rock Engineering
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...
Fu, P. et al Lawrence Livermore National Laboratory
Nov 15, 2015
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Sustainable Self-Propping Shear Zones in EGS: Chlorite, Illite, and Biotite Rates and Report
Spreadsheet containing chlorite, illite, and biotite rate data and rate equations that can be used in reactive transport simulations. Submission includes a report on the development of the rate laws.
Carroll, S. and Smith, M. Lawrence Livermore National Laboratory
Nov 06, 2015
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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
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Applications of Fractured Continuum Model to Enhanced Geothermal System Heat Extraction Problems
This paper describes the applications of the fractured continuum model to the different enhanced geothermal systems reservoir conditions. The capability of the fractured continuum model to generate fracture characteristics expected in enhanced geothermal systems reservoir environm...
Kalinina, E. et al Sandia National Laboratories
May 06, 2014
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Chlorite Dissolution Rates From 25 to 275 degrees and pH 3 to 10
We have calculated a chlorite dissolution rate equation at far from equilibrium conditions by combining new data (20 experiments at high temperature) with previously published data Smith et al. 2013 and Lowson et al. 2007. All rate data (from the 127 experiments) are tabulated in...
Lawrence Livermore National Laboratory
Sep 27, 2013
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Hydraulic Studies of Drilling Microbores with Supercritical Steam, Nitrogen and Carbon Dioxide
Hydraulic studies of drilling micropores at various depths and with various hole sizes, tubing, fluids and rates to show theoretical feasibility.
WELLFLO Simulations Report separated into three parts:
Step 4: Drilling 10,000 ft Wells with Supercritical Steam, Nitrogen, and Carbon...
Karaaslan, M. Impact Technologies LLC
Jan 01, 2010
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Utah FORGE: Documentation on Discrete Fracture Network and Fracture Propagation Modelling
This dataset includes reports and a slide presentation on discrete fracture network (DFN) generation and hydraulic fracture modeling at the Utah FORGE site. It details the characterization of natural fractures using well log and core data, as well as stochastic modeling techniques...
Sharma, M. and Cao, M. University of Texas
Feb 07, 2023
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Brady Geothermal Field Well Pumping Data During Deployment
Contains pumping data associated with the wells used in the 2016 Spring Campaign led partially by UW Madison, LBNL, and LLNL scientists. The well coordinates and the depths to the pressure sensors used in the pumping wells can be found at the link "Coordinates and Sensor Depths" b...
Feigl, K. University of Wisconsin
Mar 30, 2016
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Brady's Geothermal Field Map of DAS, Nodal, Vibroseis and Reftek Station Deployment
Map of DAS, nodal, vibroseis and Reftek stations during March 2016 deployment. The plot on the left has nodal stations labeled; the plot on the right has vibroseis observations labeled. Stations are shown in map-view using Brady's rotated X-Y coordinates with side plots denoting...
Feigl, K. University of Wisconsin
Oct 15, 2016
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Development of a Neutron Diffraction Based Experimental Capability for Investigating Hydraulic Fractures for EGS-like Conditions
Understanding the relationship between stress state, strain state and fracture initiation and propagation is critical to the improvement of fracture simulation capability if it is to be used as a tool for guiding hydraulic fracturing operations. The development of fracture predict...
Polsky, Y. et al Oak Ridge National Laboratory
Feb 01, 2013
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Map of Validation of Innovative Exploration Technologies for Newberry Volcano
A map showing location of wells permitted, drilled and seismic test, as part of validation of innovative exploration technologies done for the Newberry Volcano project in 2012.
Jaffe, T. Davenport Newberry Holdings, LLC
Jul 01, 2012
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Validation of Innovative Exploration Technologies for Newberry Volcano: Drilling Summary
Drilling summary from validation of innovative exploration technologies for Newberry Volcano, including depths, dates, and drilling statistics from 2012
Jaffe, T. Davenport Newberry Holdings, LLC
Jan 01, 2012
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Validation of Innovative Exploration Technologies for Newberry Volcano: Shallow Temperature Data
Validation of Innovative Exploration Technologies for Newberry Volcano: Temperature Readings from 7 wells drilled to date by SMU 2012
Frone, Z. et al Davenport Newberry Holdings, LLC
Jan 01, 2012
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Validation of Innovative Exploration Technologies for Newberry Volcano: Raw Seismic Data
Validation of Innovative Exploration Technologies for Newberry Volcano: Seismic data raw taken by Apex Hipoint for 1st test 2012 (data in .ff format)
Jaffe, T. Davenport Newberry Holdings, LLC
Jan 01, 2012
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Validation of Innovative Exploration Technologies for Newberry Volcano: LiDAR of Newberry Volcano
Validation of Innovative Exploration Technologies for Newberry Volcano: LiDAR of Newberry Volcano 2012
Jaffe, T. Davenport Newberry Holdings, LLC
Jan 01, 2012
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Validation of Innovative Exploration Technologies for Newberry Volcano: Raw Gravity Data
Validation of Innovative Exploration Technologies for Newberry Volcano: Raw data used to prepare the Gravity Report by Zonge 2012
Jaffe, T. Davenport Newberry Holdings, LLC
Oct 11, 2010
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Summary Fracturing of Coso Samples with StimuFrac
Lab-scale stimulation was performed on Coso samples obtained from a single core (1623 feet TVD, reservoir Coso CGC 18-27) using StimuFrac and control fluid in the absence of stimuli-responsive polymer.
Fernandez, C. Pacific Northwest National Laboratory
Sep 06, 2016
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Improved Microseismicity Detection During Newberry EGS Stimulations
Effective enhanced geothermal systems (EGS) require optimal fracture networks for efficient heat transfer between hot rock and fluid. Microseismic mapping is a key tool used to infer the subsurface fracture geometry. Traditional earthquake detection and location techniques are oft...
Templeton, D. Lawrence Livermore National Laboratory
Oct 01, 2013
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Updated Overpressures and Permeability Values for PNNL's StimuFrac Fluid
A corrigendum was submitted to the journal of Geothermics on our article "Environmentally friendly, rheoreversible, hydraulic-fracturing fluids for enhanced geothermal systems" Shao et al Geothermics 58 (2015) 22-31.
In the original article some permeability values were underesti...
Shao, H. et al Pacific Northwest National Laboratory
Apr 06, 2016
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