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Operational Performance Requirements For Motor Power Sections Used in Geothermal Drilling Based Upon Minimum Specific Energy

Operational performance requirements are needed to support development of specifications for downhole motor power sections to be used for drilling hard rock during geothermal wellbore construction. Theoretical torque specifications are derived based upon a widely-accepted rock-re...

Raymond, D. Sandia National Laboratories

Sep 10, 2014
1 Resources
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Physical and Numerical Modeling Open Source Files and Datasets for 1:6 Scale Reference Model 2 (RM2) Cross-Flow Turbine

This submission includes Github links to open source files and data sets, including the numerical model, CACTUS, input files, source code and output files, CAD files of the 1:6 scale model DOE's RM2 cross-flow turbine, power performance data and wake flow measurements from the 1:6...

Neary, V. Sandia National Laboratories

Jun 30, 2015
3 Resources
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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
7 Resources
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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
1 Resources
0 Stars
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Reference Model 4 Cost Breakdown (RM4: Ocean Current Turbine)

Contains the Reference Model 4 (RM4) spreadsheets with the cost breakdown structure (CBS) for the levelized cost of energy (LCOE) calculations for a single RM4 device and multiple unit arrays. These spreadsheets are contained within an XLSX file and a spreadsheet editor such as Mi...

Neary, V. et al Sandia National Laboratories

Sep 30, 2014
2 Resources
0 Stars
Publicly accessible

Reference Model 4 Full Scale Geometry (RM4: Ocean Current Turbine)

Contains the Reference Model 4 (RM4) full scale geometry files of the Ocean Current Turbine, developed by the Reference Model Project (RMP). These full scale geometry files are saved as SolidWorks assembly, IGS, X_T, and STEP files, and require a CAD program to view. This data was...