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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
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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
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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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Geogenic Helium Release from Rock Fracture

In this project 38 uniaxial compaction tests were conducted at Sandia National Laboratories with 7 different rock types. During these tests, we created a vacuum system and evacuated and measured all the helium that was released by the samples during crushing. The experimental file...

Kibikas, W. Sandia National Laboratories

Jan 24, 2025
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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
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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
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Strengthening Effects of Surface Chemistry on the Consolidation of Silicate-Based Geomaterials Experimental Data

This dataset contains experimental data and scanning electron microscope (SEM) images generated during a study on the effects of surface chemistry on the mechanical consolidation of silicate-based geomaterials. The experiments were performed at Sandia National Laboratories in Albu...

Choens, R. et al Sandia National Laboratories

Jun 21, 2024
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CODAS Data from Oliktok Point, Beaufort Sea, Alaska

Cryosphere/Ocean Distributed Acoustic Sensing (CODAS) data collected from the Beaufort Sea, Alaska, using ~37.4 km of dark telecommunications fiber located at Oliktok Point, Alaska. Data were collected with a Silixa iDAS, using 10 m gauge length, 2 m spatial resolution, and 1000 H...

Baker, M. and Abbott, R. Sandia National Laboratories

Aug 08, 2023
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