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EGS Collab Experiment 1: Core Logs

Published by Lawrence Berkeley National Laboratory | Department of Energy | Catalog Last Checked: March 23, 2026 at 09:40 PM | Dataset Last Updated: April 02, 2019 at 10:09 PM
Core logs from the EGS Collab project Experiment 1 for the stimulation (Injection) well (E1-I), the Production well (E1-P), and monitoring wells (E1-OT, E1-OB, E1-PST, E1-PSB, E1-PDT, and E1-PDB) on the 4850 Level of SURF (the Sanford Underground Research Facility), single PDF file, 5-ft run intervals. In the monitoring well IDs, "O" indicates that the well is orthogonal to the anticipated fracture plane, "P" indicates that the well is parallel to the anticipated fracture plane, "S" indicates a shallow well, "D" indicates a deep well, "T" refers to top, and "B" refers to bottom. Logs include: experiment number; borehole ID; depth interval; run number; final packed core box number; scribe line (yes/no; red-on-right convention); logging dates; logger initials; as well as sketches of core foliation, folding, and fracturing with additional details and notes on other features of interest.

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
                                            [
  "019:20"
]
contactPoint 
                                            {
  "fn": "Timothy J. Kneafsey",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:tjkneafsey@lbl.gov"
}
dataQuality 
                                            true
description Core logs from the EGS Collab project Experiment 1 for the stimulation (Injection) well (E1-I), the Production well (E1-P), and monitoring wells (E1-OT, E1-OB, E1-PST, E1-PSB, E1-PDT, and E1-PDB) on the 4850 Level of SURF (the Sanford Underground Research Facility), single PDF file, 5-ft run intervals. In the monitoring well IDs, "O" indicates that the well is orthogonal to the anticipated fracture plane, "P" indicates that the well is parallel to the anticipated fracture plane, "S" indicates a shallow well, "D" indicates a deep well, "T" refers to top, and "B" refers to bottom. Logs include: experiment number; borehole ID; depth interval; run number; final packed core box number; scribe line (yes/no; red-on-right convention); logging dates; logger initials; as well as sketches of core foliation, folding, and fracturing with additional details and notes on other features of interest.
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "E1-PDB Core Log.pdf",
    "format": "pdf",
    "accessURL": "https://gdr.openei.org/files/1119/E1-PDB%20Core%20Log.pdf",
    "mediaType": "application/pdf",
    "description": "Core log for EGS Collab Experiment 1 Parallel Deep Bottom (E1-PDB) well. Logged from 0 to 198 ft."
  },
  {
    "@type": "dcat:Distribution",
    "title": "E1-I Core Log.pdf",
    "format": "pdf",
    "accessURL": "https://gdr.openei.org/files/1119/EGS%20Collab_Expt1_Injection_0to208ft_loggedNov2017%20%281%29.pdf",
    "mediaType": "application/pdf",
    "description": "Core log for EGS Collab Experiment 1 Injection (E1-I) well. Logged from 0 to 208 ft."
  },
  {
    "@type": "dcat:Distribution",
    "title": "E1-OB Core Log.pdf",
    "format": "pdf",
    "accessURL": "https://gdr.openei.org/files/1119/EGS%20Collab_Expt1_OrthogonalBottom_0to197ft_loggedOct2017.pdf",
    "mediaType": "application/pdf",
    "description": "Core log for EGS Collab Experiment 1 Orthogonal Bottom (E1-OB) well. Logged from 0 to 197 ft."
  },
  {
    "@type": "dcat:Distribution",
    "title": "E1-OT Core Log.pdf",
    "format": "pdf",
    "accessURL": "https://gdr.openei.org/files/1119/EGS%20Collab_Expt1_OrthogonalTop_0to197ft_loggedOct2017.pdf",
    "mediaType": "application/pdf",
    "description": "Core log for EGS Collab Experiment 1 Orthogonal Top (E1-OT) well. Logged from 0 to 197 ft."
  },
  {
    "@type": "dcat:Distribution",
    "title": "E1-PDT Core Log.pdf",
    "format": "pdf",
    "accessURL": "https://gdr.openei.org/files/1119/EGS%20Collab_Expt1_ParallelDeepTop_0to197ft_loggedDec2017.pdf",
    "mediaType": "application/pdf",
    "description": "Core log for EGS Collab Experiment 1 Parallel Deep Top (E1-PDT) well. Logged from 0 to 197 ft."
  },
  {
    "@type": "dcat:Distribution",
    "title": "E1-PSB Core Log.pdf",
    "format": "pdf",
    "accessURL": "https://gdr.openei.org/files/1119/EGS%20Collab_Expt1_ParallelShallowBottom_0to197ft_loggedDec2017.pdf",
    "mediaType": "application/pdf",
    "description": "Core log for EGS Collab Experiment 1 Parallel Shallow Bottom (E1-PSB) well. Logged from 0 to 197 ft."
  },
  {
    "@type": "dcat:Distribution",
    "title": "E1-PST Core Log.pdf",
    "format": "pdf",
    "accessURL": "https://gdr.openei.org/files/1119/EGS%20Collab_Expt1_ParallelShallowTop_0to141ft_loggedDec2017.pdf",
    "mediaType": "application/pdf",
    "description": "Core log for EGS Collab Experiment 1 Parallel Shallow Top (E1-PST) well. Logged from 0 to 141 ft."
  },
  {
    "@type": "dcat:Distribution",
    "title": "E1-P Core Log.pdf",
    "format": "pdf",
    "accessURL": "https://gdr.openei.org/files/1119/EGS%20Collab_Expt1_Production_0to198ft_loggedNov2017.pdf",
    "mediaType": "application/pdf",
    "description": "Core log for EGS Collab Experiment 1 Production (E1-P) well. Logged from 0 to 1-198 ft."
  },
  {
    "@type": "dcat:Distribution",
    "title": "E1-I Core Photos.zip",
    "format": "zip",
    "accessURL": "https://gdr.openei.org/files/1119/e1-i_core_photos.zip",
    "mediaType": "application/zip",
    "description": "Core photos for EGS Collab Experiment 1 Injection (E1-I) well."
  },
  {
    "@type": "dcat:Distribution",
    "title": "E1-OB Core Photos.zip",
    "format": "zip",
    "accessURL": "https://gdr.openei.org/files/1119/e1-ob_core_photos.zip",
    "mediaType": "application/zip",
    "description": "Core photos for EGS Collab Experiment 1 Orthogonal Bottom (E1-OB) well. Logged from 0 to 197 ft."
  },
  {
    "@type": "dcat:Distribution",
    "title": "E1-OT Core Photos.zip",
    "format": "zip",
    "accessURL": "https://gdr.openei.org/files/1119/e1-ot_core_photos.zip",
    "mediaType": "application/zip",
    "description": "Core photos for EGS Collab Experiment 1 Orthogonal Top (E1-OT) well. Logged from 0 to 197 ft."
  },
  {
    "@type": "dcat:Distribution",
    "title": "E1-P Core Photos.zip",
    "format": "zip",
    "accessURL": "https://gdr.openei.org/files/1119/e1-p_core_photos.zip",
    "mediaType": "application/zip",
    "description": "Core photos for EGS Collab Experiment 1 Production (E1-P) well. Logged from 0 to 1-198 ft."
  },
  {
    "@type": "dcat:Distribution",
    "title": "E1-PDB Core Photos.zip",
    "format": "zip",
    "accessURL": "https://gdr.openei.org/files/1119/e1-pdb_core_photos.zip",
    "mediaType": "application/zip",
    "description": "Core photos for EGS Collab Experiment 1 Parallel Deep Bottom (E1-PDB) well. Logged from 0 to 198 ft."
  },
  {
    "@type": "dcat:Distribution",
    "title": "E1-PDT Core Photos.zip",
    "format": "zip",
    "accessURL": "https://gdr.openei.org/files/1119/e1-pdt_core_photos.zip",
    "mediaType": "application/zip",
    "description": "Core photos for EGS Collab Experiment 1 Parallel Deep Top (E1-PDT) well. Logged from 0 to 197 ft."
  },
  {
    "@type": "dcat:Distribution",
    "title": "E1-PSB Core Photos.zip",
    "format": "zip",
    "accessURL": "https://gdr.openei.org/files/1119/e1-psb_core_photos.zip",
    "mediaType": "application/zip",
    "description": "Core photos for EGS Collab Experiment 1 Parallel Shallow Bottom (E1-PSB) well. Logged from 0 to 197 ft."
  },
  {
    "@type": "dcat:Distribution",
    "title": "E1-PST Core Photos.zip",
    "format": "zip",
    "accessURL": "https://gdr.openei.org/files/1119/e1-pst_core_photos.zip",
    "mediaType": "application/zip",
    "description": "Core photos for EGS Collab Experiment 1 Parallel Shallow Top (E1-PST) well. Logged from 0 to 141 ft."
  },
  {
    "@type": "dcat:Distribution",
    "title": "EGS Collab Experiment 1 Borehole Orientations.pdf",
    "format": "pdf",
    "accessURL": "https://gdr.openei.org/files/1119/egsCollabE1_wells.pdf",
    "mediaType": "application/pdf",
    "description": "Ortho-view schematic of boreholes for Experiment 1 along the West Drift on the 4850 level of SURF. The green line represents the stimulation (Injection) well (E1-I), the red line represents the Production well (E1-P), and yellow lines represent monitoring wells. The two monitoring wells originating between E1-I and E1-P - rightmost intersection with the brown drift are called OT ("O" for orthogonal to the anticipated hydraulic fracture and "T" for top) and OB ("B" for bottom), the 2 monitoring wells originating midway down drift are called PST and PSB ("P" for parallel to the anticipated fracture plane, "S" is for shallow), and the most distant monitoring wells are called PDT and PDB where the "D" is for deep. Orientation of stimulation and production boreholes is approximately parallel to S_hmin."
  }
]
DOI 10.15121/1504480
identifier https://data.openei.org/submissions/7268
issued 2019-04-02T06:00:00Z
keyword 
                                            [
  "Collab",
  "E1-I",
  "E1-OB",
  "E1-OT",
  "E1-P",
  "E1-PDB",
  "E1-PDT",
  "E1-PSB",
  "E1-PST",
  "EGS",
  "Experiment 1",
  "Homestake",
  "Poorman",
  "SIGMA-V",
  "SURF",
  "borehole",
  "core",
  "energy",
  "features",
  "fold",
  "folding",
  "foliation",
  "fracture",
  "fractures",
  "fracturing",
  "geothermal",
  "hydraulic",
  "injection",
  "injection well",
  "log",
  "logs",
  "monitoring",
  "photos",
  "sample",
  "stimulation",
  "well"
]
landingPage https://gdr.openei.org/submissions/1119
license https://creativecommons.org/licenses/by/4.0/
modified 2019-04-02T22:09:19Z
programCode 
                                            [
  "019:006"
]
projectLead Lauren Boyd
projectNumber EE0032708
projectTitle EGS Collab
publisher 
                                            {
  "name": "Lawrence Berkeley National Laboratory",
  "@type": "org:Organization"
}
spatial 
                                            "{"type":"Polygon","coordinates":[[[-103.7577,44.3488],[-103.7465,44.3488],[-103.7465,44.3544],[-103.7577,44.3544],[-103.7577,44.3488]]]}"
title EGS Collab Experiment 1: Core Logs

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