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

    Metadata Updated: January 20, 2025

    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 Department has recently completed a field demonstration of the applicability of advanced synthetic diamond drill bits for production geothermal drilling. Two commercially-available PDC bits were tested in a geothermal drilling program in the Chocolate Mountains in Southern California. These bits drilled the granitic formations with significantly better Rate of Penetration (ROP) and bit life than the roller cone bit they are compared with. Drilling records and bit performance data along with associated drilling cost savings are presented herein. The drilling trials have demonstrated PDC bit drilling technology has matured for applicability and improvements to geothermal drilling. This will be especially beneficial for development of Enhanced Geothermal Systems whereby resources can be accessed anywhere within the continental US by drilling to deep, hot resources in hard, basement rock formations.

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    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 Sandia National Laboratories
    Maintainer
    Doi 10.15121/1225980
    Identifier https://data.openei.org/submissions/6503
    Data First Published 2012-01-01T07:00:00Z
    Data Last Modified 2017-05-18T22:47:53Z
    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 aee16f68-02cc-4bb4-b548-c88811ce36dc
    Harvest Source Id 7cbf9085-0290-4e9f-bec1-91653baeddfd
    Harvest Source Title OpenEI data.json
    Homepage URL https://gdr.openei.org/submissions/140
    License https://creativecommons.org/licenses/by/4.0/
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    Program Code 019:006
    Projectlead Arlene Anderson
    Projectnumber AID 20008
    Projecttitle Technology Development and Field Trials of EGS Drilling Systems
    Source Datajson Identifier True
    Source Hash bcb30c968a256a3b1b670366227e6e98565db4b83e7b044097fabb0814c043d4
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