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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
Publicly accessible

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
1 Resources
0 Stars
Publicly accessible

Fallon FORGE: Analogue Outcrop Samples

Compilation of results for mechanical and fluid flow properties of analogue outcrop samples experimental data for compressional and shear wave velocities, tensile strengths, and compressive strengths. Outcrop location and sample orientation data are documented in a separate csv file.
Blankenship, D. et al Sandia National Laboratories
Mar 12, 2018
2 Resources
0 Stars
Publicly accessible

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
0 Stars
Publicly accessible

Technology Development and Field Trials of EGS Drilling Systems at Chocolate Mountain

Polycrystalline diamond compact (PDC) bits are routinely used in the oil and gas industry for drilling medium to hard rock but have not been adopted for geothermal drilling, largely due to past reliability issues and higher purchase costs. The Sandia Geothermal Research Departmen...
Knudsen, S. et al Sandia National Laboratories
Jan 01, 2012
3 Resources
0 Stars
Publicly accessible

SiC Diode Test Data

Fabricated SiC diodes are tested in the temperature range of 300 degrees C to 600 degrees C.
Gilbert, G. Sandia National Laboratories
Aug 01, 2014
1 Resources
0 Stars
Publicly accessible

HT Flash and Tantalum Capacitor Report

Pushing the boundaries with geothermal tool development can often necessitate exceeding manufacturer specifications for temperature and pressure of individual circuit components. Detailed here are the efforts surrounding geothermal temperature characterization of commercially avai...
Cashion, A. and Cieslewski, G. Sandia National Laboratories
Oct 28, 2015
1 Resources
0 Stars
Publicly accessible

Advanced Geothermal Drilling and Logging Technologies

The objective of advanced drilling and logging technologies is to promote ways and means to reduce the cost of geothermal drilling through an integrated effort which involves developing an understanding of geothermal drilling and logging needs, elucidating best practices, and fost...
Raymond, D. et al Sandia National Laboratories
Dec 15, 2013
1 Resources
0 Stars
Publicly accessible

Utah FORGE 5-2557: Trixial Shear and Wellbore Breakout Tests Report and Data

Included are a report and data from triaxial shear tests on simulated Sierra White fault gouge and a borehole stimulation experiment. This serves as a progress report for the Role of Fluid and Temperature in Fracture Mechanics and Coupled Thermo-Hydro-Mechanical-Chemical (THMC) P...
Choens, C. and Yoon, H. Sandia National Laboratories
Apr 19, 2023
2 Resources
0 Stars
Publicly accessible

Preliminary performance of HT Datalink

Preliminary performance of high-temperature (HT) high-speed (HS) data link at room temperature over 5000 ft of wireline. The data shows ability of the data link to adapt by decreasing speed.
Cieslewski, G. Sandia National Laboratories
Feb 11, 2014
1 Resources
0 Stars
Publicly accessible

Microhole Test Data

Drilling results from the microhole project at the Sandia High Operating Temperature test facility. The project is seeking to help reduce the cost of exploration and monitoring of geothermal wells and formations by drilling smaller holes. The tests were part of a control algorith...
Su, J. Sandia National Laboratories
May 23, 2016
5 Resources
0 Stars
Publicly accessible

EGS Collab Experiment 2: Hydraulic Pressure Test Results

The EGS Collab experiment 2 was focused on testing shear stimulation techniques. Shear stimulation, in this case, means using hydraulic pressure to cause shear slip on preexisting fracture or fault planes such that the hydraulic conductivity of the fracture or fault increases. The...
Burghardt, J. et al Lawrence Berkeley National Laboratory
Feb 17, 2023
1 Resources
0 Stars
Publicly accessible

Utah FORGE 3-2418: Wellbore Fracture Imaging Using Inflow Detection 2024 Annual Workshop Presentation

This is a presentation on the Wellbore Fracture Imaging Using Inflow Detection by Stanford University and Sandia National Laboratory, presented by Roland Horde. This is a video presentation on wells, both before and after stimulation, using chloride or other ions to map fractures ...
Horne, R. and Schneider, M. Energy and Geoscience Institute at the University of Utah
Sep 13, 2024
1 Resources
0 Stars
Publicly accessible

West Flank Coso FORGE: Well Photos and Notes

Photos and detailed downhole lithology notes for wells CGEH-1 and 74-2 at the West Flank Coso, Ca FORGE location.
Blankenship, D. Sandia National Laboratories
Dec 21, 2015
1 Resources
0 Stars
Publicly accessible

West Flank Coso FORGE: Mud Logs

Mud logs for wells 83-11, 68-6, 33A-7, 33A-7RD, 52B-7, and 88-1 at West Flank
Blankenship, D. Sandia National Laboratories
May 13, 2016
1 Resources
0 Stars
Publicly accessible

West Flank Coso FORGE: Downhole Lithologic Data

x,y,z downhole lithologic logs for the wells in and around the West Flank FORGE site based on a review of cuttings, core, and mud logs.
Blankenship, D. Sandia National Laboratories
Mar 01, 2016
1 Resources
0 Stars
Publicly accessible

West Flank Coso FORGE: 33-7 Image Log

EMI (Electric Micro Imaging tool, Halliburton) image log in GMI Imager format. GMI Imager is software available from Baker Hughes and is used to open .img files.
Blankenship, D. Sandia National Laboratories
Aug 01, 2001
1 Resources
0 Stars
Publicly accessible

West Flank Coso FORGE: Geologic Cross-Sections

Geologic cross sections from the West Flank FORGE site. Cross Section traces linked in resources.
Blankenship, D. Sandia National Laboratories
Mar 01, 2016
2 Resources
0 Stars
Publicly accessible

Laboratory Evaluation of EGS Shear Stimulation-Test 001

This is the results of an initial setup-shakedon test in order to develop the plumbing system for this test design. a cylinder of granite with offset holes was jacketed and subjected to confining pressure and low temperature (85C) and pore water pressure. Flow through the sample w...
Bauer, S. Sandia National Laboratories
Jul 29, 2014
1 Resources
0 Stars
Publicly accessible

West Flank Coso, CA FORGE Test Area

A map with the Coso West Flank FORGE test area outlined, along with regional seismicity, the aeromagnetic data set and the area currently being utilized for the creation of the 3D model.
Blankenship, D. Sandia National Laboratories
Nov 15, 2015
1 Resources
0 Stars
Publicly accessible

Fallon FORGE: ArcGIS Site Location and Geologic Model Range Polygons

A zip file containing two ArcGIS polygons of the FORGE site located in Fallon, Nevada. FallonFORGE3DGeologicModelRange is the 3D geologic model range and FallonFORGESite is the FORGE site location.
Blankenship, D. Sandia National Laboratories
Mar 01, 2016
1 Resources
0 Stars
Publicly accessible

West Flank Coso Downhole Temperature Data

Downhole temperature data for the three wells inside the West Flank FORGE footprint; 83-11, TCH 74-2 and TCH 48-11. TCH 74-2 and TCH 48-11 were both collected before 1990 and 83-11 was collected in 2009. The are compiled into one spreadsheet for ease of visualization. Plot of data...
Blankenship, D. Sandia National Laboratories
Mar 01, 2008
1 Resources
0 Stars
Publicly accessible

Microhole drilling technology utilizing a golden section search algorithm

A fundamental issue in microhole drilling is that delivering high weight-on-bit (WOB), high torque rotational horsepower to a conventional drill bit does not scale down to the hole sizes necessary to realize the envisioned cost savings An optimization algorithm called a golden sec...
Su, J. et al Sandia National Laboratories
Jun 23, 2021
7 Resources
0 Stars
Publicly accessible

Test Report for Detonation Velocity Measurements

Test report for detonation velocity measurements. A series of tests were conducted to determine reaction rate and general behavior of aluminum (AL) and magnesium (MG) powder mixtures (metalized explosives) with Bullseye double-base smokeless propellant. Given the indeterminate sen...
Grubelich, M. Sandia National Laboratories
Jan 13, 2014
1 Resources
0 Stars
Publicly accessible

Stability of Elastomers Subjected to Geothermal Well-Like Conditions

The aim of this study is to understand how commercially available elastomers perform under geothermal well-like conditions and make recommendations to the community based on these results. This poster highlights the mechanical performance of several elastomers (including EPDM, Vit...
Redline, E. et al Sandia National Laboratories
Aug 10, 2014
1 Resources
0 Stars
Publicly accessible
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