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    • Grain-Scale Failure in Thermal Spallation Drilling

    Metadata Updated: January 20, 2025

    Geothermal power promises clean, renewable, reliable and potentially widely-available energy, but is limited by high initial capital costs. New drilling technologies are required to make geothermal power financially competitive with other energy sources. One potential solution is offered by Thermal Spallation Drilling (TSD) - a novel drilling technique in which small particles (spalls) are released from the rock surface by rapid heating. In this paper, we discuss results from a new modeling effort investigating thermal spallation drilling. In particular, we describe an explicit model that simulates the grain-scale mechanics of thermal spallation and use this model to examine existing theories concerning spalling mechanisms. We will report how borehole conditions influence spall production, and discuss implications for macro-scale models of drilling systems.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: Creative Commons Attribution

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    Dates

    Metadata Created Date January 11, 2025
    Metadata Updated Date January 20, 2025

    Metadata Source

    Harvested from OpenEI data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 11, 2025
    Metadata Updated Date January 20, 2025
    Publisher Lawrence Livermore National Laboratory
    Maintainer
    Identifier https://data.openei.org/submissions/6530
    Data First Published 2012-01-01T07:00:00Z
    Data Last Modified 2017-05-23T22:16:16Z
    Public Access Level public
    Bureau Code 019:20
    Metadata Context https://openei.org/data.json
    Metadata Catalog ID https://openei.org/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Data Quality True
    Datagov Dedupe Retained 20250120143002
    Harvest Object Id 53140348-91d8-4c72-9b78-1fa26051ccb0
    Harvest Source Id 7cbf9085-0290-4e9f-bec1-91653baeddfd
    Harvest Source Title OpenEI data.json
    Homepage URL https://gdr.openei.org/submissions/175
    License https://creativecommons.org/licenses/by/4.0/
    Program Code 019:006
    Projectlead Greg Stillman
    Projectnumber LLNL FY12 AOP2
    Projecttitle Geomechanical Modeling for Thermal Spallation Drilling
    Source Datajson Identifier True
    Source Hash 6be3ae13e435d78566a98cfc46f0e7df12581fc57fd793be193bb4efb9e37dd4
    Source Schema Version 1.1

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