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    • DCIF Westerly Granite AE Stress Effect Test (Task 3-1)

    Metadata Updated: January 20, 2025

    Directional Cooling-Induced Fracturing (DCIF) experiments were conducted on rectangular Westerly granite blocks (width=depth=4.0", height=2.0"). Liquid nitrogen was poured in a small, 1"-diameter copper cup attached to the top of the sample, and the resulting acoustic emissions (AEs) and temperature changes on the surface of the sample were monitored. Several confining stresses were applied bi-axially to the sides of the samples so that the onset of AE activity and the stress applied to the sample were correlated. The obtained AEs were used to determine the microcracking source locations and amplitude, and the associated moment tensors. Included in this submission are the animations of the AE locations and graphics displaying the measured temperature-AE activity changes for different stresses.

    Access & Use Information

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

    Downloads & Resources

    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 Berkeley National Laboratory
    Maintainer
    Doi 10.15121/1829305
    Identifier https://data.openei.org/submissions/7459
    Data First Published 2021-07-08T06:00:00Z
    Data Last Modified 2021-11-08T20:04:30Z
    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 20250120155001
    Harvest Object Id b265c887-0412-4c15-aba0-d2d914d52055
    Harvest Source Id 7cbf9085-0290-4e9f-bec1-91653baeddfd
    Harvest Source Title OpenEI data.json
    Homepage URL https://gdr.openei.org/submissions/1343
    License https://creativecommons.org/licenses/by/4.0/
    Old Spatial {"type":"Polygon","coordinates":-122.23850368901456,37.876494141442386,-122.23850368901456,37.876494141442386,-122.23850368901456,37.876494141442386,-122.23850368901456,37.876494141442386,-122.23850368901456,37.876494141442386}
    Program Code 019:006
    Projectlead Zachary Frone
    Projectnumber EE0009033
    Projecttitle DEVELOPMENT OF A DIRECTIONAL COOLING INDUCED FRACTURING (DCIF) TECHNOLOGY FOR NEAR-WELLBORE STRESS ESTIMATION IN GEOTHERMAL RESERVOIRS
    Source Datajson Identifier True
    Source Hash 36eb0edcbf7bee3c0e320ada75c9b8da2170f1fa8c50d03ebba7eaf527c71496
    Source Schema Version 1.1
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