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Supercritical Geothermal Wells: Drilling and Completion Materials Database

Published by Sandia National Laboratories | Department of Energy | Metadata Last Checked: April 28, 2026 | Last Modified: 2026-04-27T22:31:41Z
This dataset compiles information on geothermal wells drilled into supercritical and near-supercritical conditions, with a focus on drilling and completion materials, fluid chemistry, and laboratory validation studies. The data are drawn from well reports, scientific literature, and laboratory testing programs and are organized into separate files by topic. All files are provided in CSV or Excel format with clearly labeled fields, and every record includes the columns well_name, geothermal_field, and country_region to allow cross-referencing across files. Source references are included in APA format within the data. The overview file provides general well information including location, depth, drilling year, temperature, pressure, and coordinates. The well component files (e.g., drill_bit, drilling fluids, cement, etc.) document materials used in drilling and completion, with fields for component type, material, specifications, issues observed, and references. The fluid chemistry file contains aqueous and vapor-phase geochemical measurements from selected geothermal wells and fields, including concentrations of major, minor, and trace elements as well as gas compositions. The material validation and testing file compiles laboratory results on the performance of metals, cement, proppants, lost circulation materials, and wellbore hydraulics under simulated supercritical geothermal conditions, with associated conditions, limitations, results, and recommendations. A README file is included to support dataset interpretation. It provides detailed descriptions of each file's structure, field definitions, unit conventions, and usage notes. Users are advised to consult the README to understand how to link well-level metadata across files and interpret measurement fields accurately. Some records may be incomplete or contain ranges and uncertainties as reported in the original sources. An associated paper summarizing this work and the broader project it is part of, including identified data gaps and recommendations, is linked below.

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
                                            [
  "019:20"
]
contactPoint 
                                            {
  "fn": "William Kibikas",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:wmkibik@sandia.gov"
}
dataQuality 
                                            true
description This dataset compiles information on geothermal wells drilled into supercritical and near-supercritical conditions, with a focus on drilling and completion materials, fluid chemistry, and laboratory validation studies. The data are drawn from well reports, scientific literature, and laboratory testing programs and are organized into separate files by topic. All files are provided in CSV or Excel format with clearly labeled fields, and every record includes the columns well_name, geothermal_field, and country_region to allow cross-referencing across files. Source references are included in APA format within the data. The overview file provides general well information including location, depth, drilling year, temperature, pressure, and coordinates. The well component files (e.g., drill_bit, drilling fluids, cement, etc.) document materials used in drilling and completion, with fields for component type, material, specifications, issues observed, and references. The fluid chemistry file contains aqueous and vapor-phase geochemical measurements from selected geothermal wells and fields, including concentrations of major, minor, and trace elements as well as gas compositions. The material validation and testing file compiles laboratory results on the performance of metals, cement, proppants, lost circulation materials, and wellbore hydraulics under simulated supercritical geothermal conditions, with associated conditions, limitations, results, and recommendations. A README file is included to support dataset interpretation. It provides detailed descriptions of each file's structure, field definitions, unit conventions, and usage notes. Users are advised to consult the README to understand how to link well-level metadata across files and interpret measurement fields accurately. Some records may be incomplete or contain ranges and uncertainties as reported in the original sources. An associated paper summarizing this work and the broader project it is part of, including identified data gaps and recommendations, is linked below.
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "01_REAME.txt",
    "format": "txt",
    "accessURL": "https://gdr.openei.org/files/1776/01_REAME%20%281%29.txt",
    "mediaType": "text/plain",
    "description": "This README details the contents of each CSV file, with column descriptions and usage notes for each. "
  },
  {
    "@type": "dcat:Distribution",
    "title": "Material validation and testing.xlsx",
    "format": "xlsx",
    "accessURL": "https://gdr.openei.org/files/1776/Material%20validation%20and%20testing%20%282%29.xlsx",
    "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
    "description": "Contains laboratory test results on casing metals, proppants, lost circulation materials, and wellbore hydraulics under high-temperature, high-pressure conditions."
  },
  {
    "@type": "dcat:Distribution",
    "title": "casing.csv",
    "format": "csv",
    "accessURL": "https://gdr.openei.org/files/1776/casing%20%281%29.csv",
    "mediaType": "text/csv",
    "description": "Describes casing types, materials, and performance issues."
  },
  {
    "@type": "dcat:Distribution",
    "title": "casing_connections.csv",
    "format": "csv",
    "accessURL": "https://gdr.openei.org/files/1776/casing_connections%20%282%29.csv",
    "mediaType": "text/csv",
    "description": "Describes casing connection types, materials, and performance issues."
  },
  {
    "@type": "dcat:Distribution",
    "title": "cement.csv",
    "format": "csv",
    "accessURL": "https://gdr.openei.org/files/1776/cement%20%282%29.csv",
    "mediaType": "text/csv",
    "description": "Documents cement blends used in well construction and associated challenges."
  },
  {
    "@type": "dcat:Distribution",
    "title": "combined.xlsx",
    "format": "xlsx",
    "accessURL": "https://gdr.openei.org/files/1776/combined%20%282%29.xlsx",
    "mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
    "description": "This is a combined version of the dataset containing all well component and fluid chemistry data. Each sheet in this Excel file corresponds to one of the CSV files."
  },
  {
    "@type": "dcat:Distribution",
    "title": "drill_bit.csv",
    "format": "csv",
    "accessURL": "https://gdr.openei.org/files/1776/drill_bit%20%282%29.csv",
    "mediaType": "text/csv",
    "description": "Details the drill bits used in each well, including type, diameter, material, and operational issues."
  },
  {
    "@type": "dcat:Distribution",
    "title": "drill_string.csv",
    "format": "csv",
    "accessURL": "https://gdr.openei.org/files/1776/drill_string%20%282%29.csv",
    "mediaType": "text/csv",
    "description": "Contains drill string information, including type, diameter, materials, and issues."
  },
  {
    "@type": "dcat:Distribution",
    "title": "drilling_fluid.csv",
    "format": "csv",
    "accessURL": "https://gdr.openei.org/files/1776/drilling_fluid%20%282%29.csv",
    "mediaType": "text/csv",
    "description": "Provides information on drilling fluid types, additives, and related issues."
  },
  {
    "@type": "dcat:Distribution",
    "title": "fluid_chemistry.csv",
    "format": "csv",
    "accessURL": "https://gdr.openei.org/files/1776/fluid_chemistry%20%282%29.csv",
    "mediaType": "text/csv",
    "description": "Provides aqueous, vapor, and isotope chemistry measurements from well sampling, with standardized column names."
  },
  {
    "@type": "dcat:Distribution",
    "title": "lcm.csv",
    "format": "csv",
    "accessURL": "https://gdr.openei.org/files/1776/lcm%20%282%29.csv",
    "mediaType": "text/csv",
    "description": "Summarizes lost circulation materials (LCM) used in wells and any observed issues."
  },
  {
    "@type": "dcat:Distribution",
    "title": "liner.csv",
    "format": "csv",
    "accessURL": "https://gdr.openei.org/files/1776/liner%20%282%29.csv",
    "mediaType": "text/csv",
    "description": "Contains liner information, including type (slotted, perforated), diameter, materials, and issues."
  },
  {
    "@type": "dcat:Distribution",
    "title": "overview.csv",
    "format": "csv",
    "accessURL": "https://gdr.openei.org/files/1776/overview%20%282%29.csv",
    "mediaType": "text/csv",
    "description": "Summarizes well-level metadata including location, depth, temperature, and pressure for supercritical geothermal wells."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Associated Paper - Kibikas et al. 2026",
    "format": "pdf",
    "accessURL": "https://pangea.stanford.edu/ERE/pdf/IGAstandard/SGW/2026/Kibikas.pdf",
    "mediaType": "application/pdf",
    "description": "This paper from the 2026 Stanford Geothermal Workshop provides details on this dataset, its creation, and the broader project it is part of. "
  }
]
identifier https://data.openei.org/submissions/8657
issued 2025-09-18T06:00:00Z
keyword 
                                            [
  "LCM",
  "casing",
  "casing connections",
  "cement",
  "completion materials",
  "drill bits",
  "drill strings",
  "drilling fluids",
  "drilling materials",
  "energy",
  "fluid chemistry",
  "geothermal",
  "geothermal wells",
  "liners",
  "literature review",
  "lost circulation materials",
  "material performance",
  "supercritical geothermal"
]
landingPage https://gdr.openei.org/submissions/1776
license https://creativecommons.org/licenses/by/4.0/
modified 2026-04-27T22:31:41Z
programCode 
                                            [
  "019:006"
]
projectLead Alexandra Prisjatschew
projectNumber 
                                            "53049"
projectTitle Supercritical Drilling Material Analysis: Current Practices, Technological Gaps, and Recommendations
publisher 
                                            {
  "name": "Sandia National Laboratories",
  "@type": "org:Organization"
}
spatial 
                                            "{"type":"Polygon","coordinates":[[[-180,-83],[180,-83],[180,83],[-180,83],[-180,-83]]]}"
title Supercritical Geothermal Wells: Drilling and Completion Materials Database

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