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"FY15 AOP 2514"×

Centralizer for Use in Well Completions

Well completions are an integral part of providing safe, reliable and continuous access to underground resources such as oil, gas and geothermal resources. Completions are typically considered to be the final step of drilling engineering which includes processes such as setting c...
Su, J. Sandia National Laboratories
Apr 17, 2014
1 Resources
0 Stars
Publicly accessible

Newberry Caldera Conceptual Geologic Model

Conceptual model for the Newberry Caldera geothermal area. Model is centered around caldera and evaluates geologic information in tandem with some geophysical datasets to derive a conceptual subsurface model. Includes: Geologic information from the USGS geologic map of Newberry...
Moser, M. et al National Energy Technology Laboratory
Mar 04, 2016
1 Resources
0 Stars
Publicly accessible

StimuFrac Compressibility as a Function of CO2 Molar Fraction

Compressibility values were obtained in a range of pressures at 250degC by employing a fixed volume view cell completely filled with PAA aqueous solution and injecting CO2 at constant flow rate (0.3mL/min). Pressure increase as a function of supercritical CO2 (scCO2) mass fraction...
A., C. Pacific Northwest National Laboratory
Apr 29, 2016
1 Resources
0 Stars
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Helium isotope study of Geothermal Features in Chile with Field and Laboratory Data

Helium isotope and stable isotope data from the El Tatio, Tinginguirica, Chillan, and Tolhuaca geothermal systems, Chile. Data from this submission are discussed in: Dobson, P.F., Kennedy, B.M., Reich, M., Sanchez, P., and Morata, D. (2013) Effects of volcanism, crustal thickness,...
Dobson, P. et al Lawrence Berkeley National Laboratory
Feb 11, 2013
2 Resources
0 Stars
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Great Salt Lake Composition and Rare Earth Speciation Analysis

We have conducted aqueous speciation analyses of the Great Salt Lake (GSL) brine sample (Table 1) and a mock geo sample (Table 2) spiked with 1 ppb Tb and 100 ppb Tb. The GSL speciation (Figure 1) aligns with our basic speciation expectations that strong carbonate complexes would ...
Jiao, Y. et al Lawrence Livermore National Laboratory
Apr 19, 2017
1 Resources
0 Stars
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Rare Earth Desorption Test with Citrate and Bicarbonate

LBT (lanthanide binding tag) cells were grown overnight in LB media with 0.05% Amp. 1:100 subculture taken from overnights, grown for 2 hours. LBT was induced with 0.002% arabinose added for 3 hours. REE adsorption was done by combining 350 ul (0.25% 1M MES, 12.5 uM Tb, and 12.5 u...
Jiao, Y. et al Lawrence Livermore National Laboratory
Jun 01, 2017
1 Resources
0 Stars
Publicly accessible

Water chemistry data and calculations for Fracture Sustainability Tests

Measured cation, anion, and silica are presented as well as calculations evaluating mass balance performed for 4 fracture sustainability tests under EGS conditions: Stripa granite, Metamudstone, Rhyolitic Ashflow Tuff, and Silicified Rhyolitic Tuff. Calculations of charge balance ...
Kneafsey, T. et al Lawrence Berkeley National Laboratory
Sep 30, 2020
2 Resources
0 Stars
Publicly accessible

Identifying Pathways for Enhanced Collaboration between the Mining and Geothermal Industries Techno-Economic Analysis and Data Summaries

These spreadsheets include a Techno-Economic Analysis (TEA) summary and descriptions and links to mining data analyzed as part of this study. The TEA summary includes the results from several mining data-informed geothermal development models analyzed using the DOE's Geothermal El...
Rhodes, G. et al National Renewable Energy Laboratory
Mar 31, 2020
2 Resources
0 Stars
Publicly accessible

The Value of Spatial Information for Determining Well Placement

The article and accompanying spreadsheet represent the information posteriors derived from synthetic data of magnetotellurics (MT). These were used to calculate value of information of MT for geothermal exploration. Information posteriors describe how well MT was able to locate t...
Trainor-Guitton, W. et al Lawrence Livermore National Laboratory
May 12, 2014
3 Resources
0 Stars
Publicly accessible

Testing for Controlled Rapid Pressurization

Borehole W1 is a NQ core hole drilled at our test site in Socorro. The rock is rhyolite. Borehole W1 which was used to test gas-gas explosive mixtures is 55 feet deep with casing (pinkish in the drawing) set to 35 feet. The model is a representation of the borehole and the hol...
Knudsen, S. Sandia National Laboratories
Sep 03, 2014
1 Resources
0 Stars
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Preliminary Analysis of Stress in the Newberry EGS Well NWG 55-29

As part of the planning for stimulation of the Newberry Volcano Enhanced Geothermal Systems (EGS) Demonstration project in Oregon, a high-resolution borehole televiewer (BHTV) log was acquired using the ALT ABI85 BHTV tool in the slightly deviated NWG 55-29 well. The image log rev...
Davatzes, N. and Hickman, S. National Energy Technology Laboratory
Jan 01, 2011
1 Resources
0 Stars
Publicly accessible

US Low-Temperature EGS Resource Potential Estimate

Shapefile of shallow, low-temperature EGS resources for the United States, and accompanying paper (submitted to GRC 2016) describing the methodology and analysis. These data are part of a very rough estimate created for use in the U.S. Department of Energy Geothermal Technology O...
Mullane, M. et al National Renewable Energy Laboratory
Jun 30, 2016
2 Resources
0 Stars
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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
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Geothermal Exploration Cost and Time

This paper describes the methodology used to define the baseline exploration suite of techniques (baseline), as well as the approach that was used to create the cost and time data set that populates the baseline. The resulting product, an online tool for measuring impact, and the ...
Jenne, S. National Renewable Energy Laboratory
Feb 13, 2013
1 Resources
0 Stars
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Development of a Downhole Tracer and pH Measurement Instrument for Application in Geothermal Wells

Due the high temperature and pressure conditions found in geothermal wells, tracer studies designed to elucidate properties of geothermal reservoirs are traditionally conducted by pulling liquid samples from the wellhead. These samples are then sent off for analysis in a fixed lab...
Hess, R. et al Sandia National Laboratories
Sep 11, 2013
1 Resources
0 Stars
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Chlorite, Biotite, Illite, Muscovite and Feldspar Dissolution Kinetics at Variable pH and Temperatures up to 280 deg C

Chemical reactions pose an important but poorly understood threat to EGS long-term success because of their impact on fracture permeability. This report summarizes the dissolution rate equations for layered silicates where data were lacking for geothermal systems. Here we report ...
Carroll, S. et al Lawrence Livermore National Laboratory
Feb 24, 2017
2 Resources
0 Stars
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Rare Earth Adsorption and Desorption with PEGDA Beads

We synthesized PEGDA polymer hydrogel beads for cell embedding and compared REE biosorption with these beads via a gravity-driven flow through setup. One way to set up a flow through system is by cell encapsulation into polymer beads with a column setup similar to that used in th...
Jiao, Y. et al Lawrence Livermore National Laboratory
Mar 01, 2017
1 Resources
0 Stars
Publicly accessible

Post-Test SEM Examination of Brady Core, Desert Peak Core, and Stripa Granite Samples

As part of the shear-induced permeability test of Brady well BCH-03, Desert Peak well DP 35-13, and Stripa granite samples, the three post-test (reacted) rock samples were examined using a Scanning Electron Microscope (SEM). The SEM images of the core and elemental analysis are in...
Kneafsey, T. et al Lawrence Berkeley National Laboratory
Dec 23, 2015
4 Resources
0 Stars
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Chemistry of the thermal water samples of the Camas Prairie area in Idaho, USA

This dataset includes chemistry of geothermal water samples of the Camas Prairie area in Idaho. The samples included in this dataset were collected over the period of 2016-2019. Collection/analysis of new water samples and compilation of existing water chemistry database were cond...
Neupane, G. et al Idaho National Laboratory
Sep 30, 2020
1 Resources
0 Stars
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Alternative Geothermal Power Production Scenarios

The information given in this file pertains to Argonne life-cycle analyses (LCAs) of the plant cycle stage for a set of ten new geothermal scenario pairs, each comprised of a reference and improved case. These analyses were conducted to compare environmental performances among the...
Sullivan, J. Argonne National Laboratory
Mar 14, 2014
1 Resources
0 Stars
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Application of Neutron Imaging to Investigate Flow through Fractures for EGS

There is an ongoing effort at Oak Ridge National Laboratory to develop a unique experimental capability for investigating flow through porous and fractured media using neutron imaging techniques. This capability is expected to support numerous areas of investigation associated wit...
Polsky, Y. et al Oak Ridge National Laboratory
Feb 01, 2013
1 Resources
0 Stars
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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
1 Resources
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High Temperature Chemical Sensing Tool: Preliminary pH and reference electrode test results

Project: High Temperature Chemical Sensing Tool for Distributed Mapping of Fracture Flow in EGS. Preliminary pH and reference electrode test results.
Cieslewski, G. Sandia National Laboratories
Sep 30, 2014
6 Resources
0 Stars
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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
1 Resources
0 Stars
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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
1 Resources
0 Stars
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