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

Published by Lawrence Berkeley National Laboratory | Department of Energy | Catalog Last Checked: March 23, 2026 at 09:41 PM | Dataset Last Updated: November 08, 2021 at 08:04 PM
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.

Resources

15 resources available

  • DCIF Stress Test Westerly Granite Metadata.docx

    DOCX
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  • DCIF Time vs AE Rate Summary.tif

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  • DCIF Time vs Cumulative AE Count Summary.tif

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  • DCIF Westerly Granite Block C AE Movie.avi

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  • DCIF Westerly Granite Block D AE Movie.avi

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  • DCIF Westerly Granite Block E AE Movie.avi

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  • DCIF Westerly Granite Block F AE Movie.avi

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  • DCIF Block C Thermocouple Measurement Data.TXT

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  • DCIF Block D Thermocouple Measurement Data.TXT

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  • DCIF Block E Thermocouple Measurement Data.TXT

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  • DCIF Block F Thermocouple Measurement Data.TXT

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  • DCIF Acoustic Emission Location Block C.TXT

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  • DCIF Acoustic Emission Location Block D.TXT

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  • DCIF Acoustic Emission Location Block E.TXT

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  • DCIF Acoustic Emission Location Block F.TXT

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
                                            [
  "019:20"
]
contactPoint 
                                            {
  "fn": "Seiji Nakagawa",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:snakagawa@lbl.gov"
}
dataQuality 
                                            true
description 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.
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "DCIF Stress Test Westerly Granite Metadata.docx",
    "format": "docx",
    "accessURL": "https://gdr.openei.org/files/1343/DCIF_Task3-1_StressTest_Westerly_Metadata.docx",
    "mediaType": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
    "description": "This document lists the uploaded data file names, explanations for each column of the data tables, and schematic diagrams for the experimental setup and the sensor locations. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "DCIF Time vs AE Rate Summary.tif",
    "format": "tif",
    "accessURL": "https://gdr.openei.org/files/1343/DCIF_Task3-1_Time%20vs%20AE%20rate%20summary.tif",
    "mediaType": "application/octet-stream",
    "description": "This image shows experimental time vs measured AE generation rate for samples subjected to different confining stresses."
  },
  {
    "@type": "dcat:Distribution",
    "title": "DCIF Time vs Cumulative AE Count Summary.tif",
    "format": "tif",
    "accessURL": "https://gdr.openei.org/files/1343/DCIF_Task3-1_Time%20vs%20cumulative%20AE%20count%20summary.tif",
    "mediaType": "application/octet-stream",
    "description": "This image shows temperature measured on the cooling cup containing liquid nitrogen vs measured, cumulative total AE events for samples subjected to different confining stresses."
  },
  {
    "@type": "dcat:Distribution",
    "title": "DCIF Westerly Granite Block C AE Movie.avi",
    "format": "avi",
    "accessURL": "https://gdr.openei.org/files/1343/DCIF_Task3-1_Westerly_blockC_AEmovie.avi",
    "mediaType": "application/octet-stream",
    "description": "This animation shows locations of the AE events produced within a sample block C, during the local cooling experiment."
  },
  {
    "@type": "dcat:Distribution",
    "title": "DCIF Westerly Granite Block D AE Movie.avi",
    "format": "avi",
    "accessURL": "https://gdr.openei.org/files/1343/DCIF_Task3-1_Westerly_blockD_AEmovie.avi",
    "mediaType": "application/octet-stream",
    "description": "This animation shows locations of the AE events produced within a sample block D, during the local cooling experiment."
  },
  {
    "@type": "dcat:Distribution",
    "title": "DCIF Westerly Granite Block E AE Movie.avi",
    "format": "avi",
    "accessURL": "https://gdr.openei.org/files/1343/DCIF_Task3-1_Westerly_blockE_AEmovie.avi",
    "mediaType": "application/octet-stream",
    "description": "This animation shows locations of the AE events produced within a sample block E, during the local cooling experiment."
  },
  {
    "@type": "dcat:Distribution",
    "title": "DCIF Westerly Granite Block F AE Movie.avi",
    "format": "avi",
    "accessURL": "https://gdr.openei.org/files/1343/DCIF_Task3-1_Westerly_blockF_AEmovie.avi",
    "mediaType": "application/octet-stream",
    "description": "This animation shows locations of the AE events produced within a sample block F, during the local cooling experiment."
  },
  {
    "@type": "dcat:Distribution",
    "title": "DCIF Block C Thermocouple Measurement Data.TXT",
    "format": "TXT",
    "accessURL": "https://gdr.openei.org/files/1343/DCIF_Task3-1_blockC_Thermocouple.TXT",
    "mediaType": "text/plain",
    "description": "Thermocouple temperature measurement data for block C. See the attached meta file for the explanation of the contents"
  },
  {
    "@type": "dcat:Distribution",
    "title": "DCIF Block D Thermocouple Measurement Data.TXT",
    "format": "TXT",
    "accessURL": "https://gdr.openei.org/files/1343/DCIF_Task3-1_blockD_Thermocouple.TXT",
    "mediaType": "text/plain",
    "description": "Thermocouple temperature measurement data for block D. See the attached meta file for the explanation of the contents"
  },
  {
    "@type": "dcat:Distribution",
    "title": "DCIF Block E Thermocouple Measurement Data.TXT",
    "format": "TXT",
    "accessURL": "https://gdr.openei.org/files/1343/DCIF_Task3-1_blockE_Thermocouple.TXT",
    "mediaType": "text/plain",
    "description": "Thermocouple temperature measurement data for block E. See the attached meta file for the explanation of the contents"
  },
  {
    "@type": "dcat:Distribution",
    "title": "DCIF Block F Thermocouple Measurement Data.TXT",
    "format": "TXT",
    "accessURL": "https://gdr.openei.org/files/1343/DCIF_Task3-1_blockF_Thermocouple.TXT",
    "mediaType": "text/plain",
    "description": "Thermocouple temperature measurement data for block F. See the attached meta file for the explanation of the contents"
  },
  {
    "@type": "dcat:Distribution",
    "title": "DCIF Acoustic Emission Location Block C.TXT",
    "format": "TXT",
    "accessURL": "https://gdr.openei.org/files/1343/DCIF_Task3-1_location_blockC.TXT",
    "mediaType": "text/plain",
    "description": "Acoustic emission location data for block C. See the attached meta file for the explanation of the contents"
  },
  {
    "@type": "dcat:Distribution",
    "title": "DCIF Acoustic Emission Location Block D.TXT",
    "format": "TXT",
    "accessURL": "https://gdr.openei.org/files/1343/DCIF_Task3-1_location_blockD.TXT",
    "mediaType": "text/plain",
    "description": "Acoustic emission location data for block D See the attached meta file for the explanation of the contents"
  },
  {
    "@type": "dcat:Distribution",
    "title": "DCIF Acoustic Emission Location Block E.TXT",
    "format": "TXT",
    "accessURL": "https://gdr.openei.org/files/1343/DCIF_Task3-1_location_blockE.TXT",
    "mediaType": "text/plain",
    "description": "Acoustic emission location data for block E. See the attached meta file for the explanation of the contents"
  },
  {
    "@type": "dcat:Distribution",
    "title": "DCIF Acoustic Emission Location Block F.TXT",
    "format": "TXT",
    "accessURL": "https://gdr.openei.org/files/1343/DCIF_Task3-1_location_blockF.TXT",
    "mediaType": "text/plain",
    "description": "Acoustic emission location data for block F. See the attached meta file for the explanation of the contents."
  }
]
DOI 10.15121/1829305
identifier https://data.openei.org/submissions/7459
issued 2021-07-08T06:00:00Z
keyword 
                                            [
  "Westerly Granite",
  "acoustic emission",
  "acoustic emission location",
  "acoustic emission rate",
  "data",
  "energy",
  "fracture",
  "fracturing",
  "geophysics",
  "geothermal",
  "granite",
  "microfracture",
  "processed data",
  "stress",
  "stress measurement",
  "stress testing",
  "temperature",
  "thermal fracturing"
]
landingPage https://gdr.openei.org/submissions/1343
license https://creativecommons.org/licenses/by/4.0/
modified 2021-11-08T20:04:30Z
programCode 
                                            [
  "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
publisher 
                                            {
  "name": "Lawrence Berkeley National Laboratory",
  "@type": "org:Organization"
}
spatial 
                                            "{"type":"Polygon","coordinates":[[[-122.23850368901456,37.876494141442386],[-122.23850368901456,37.876494141442386],[-122.23850368901456,37.876494141442386],[-122.23850368901456,37.876494141442386],[-122.23850368901456,37.876494141442386]]]}"
title DCIF Westerly Granite AE Stress Effect Test (Task 3-1)

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