Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

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

    Metadata Updated: June 25, 2021

    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.

    Access & Use Information

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

    Downloads & Resources

    Dates

    Metadata Created Date June 24, 2021
    Metadata Updated Date June 25, 2021

    Metadata Source

    Harvested from OpenEI data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 24, 2021
    Metadata Updated Date June 25, 2021
    Publisher Sandia National Laboratories
    Maintainer
    Doi 10.15121/1225980
    Identifier https://data.openei.org/submissions/3000
    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
    Harvest Object Id bc4a8abd-cafb-470f-9aec-9d89236de3ba
    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/
    Old Spatial {"type":"Polygon","coordinates":-115.64776388889,33.395202777778,-115.64776388889,33.395202777778,-115.64776388889,33.395202777778,-115.64776388889,33.395202777778,-115.64776388889,33.395202777778}
    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 004178d8f0db104afbb97f5cacae1bcee2a5d47c
    Source Schema Version 1.1
    Spatial {"type":"Polygon","coordinates":-115.64776388889,33.395202777778,-115.64776388889,33.395202777778,-115.64776388889,33.395202777778,-115.64776388889,33.395202777778,-115.64776388889,33.395202777778}

    Didn't find what you're looking for? Suggest a dataset here.