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Cape EGS: Frisco Pad Flow Test Microseismic DAS Data

Published by Fervo Energy | Department of Energy | Metadata Last Checked: March 23, 2026 | Last Modified: 2026-03-18T19:59:35Z
This dataset contains microseismic data acquired during the Frisco pad flow test project led by Fervo Energy, conducted between August and September 2025 near the Utah FORGE geothermal site. The data were recorded using a Distributed Acoustic Sensing (DAS) fiber installed in well 16B, with additional geophone channels included in the dataset. Measurements were collected using a Silixa iDAS system and stored in HDF5 (H5) format. Within each file, the first six traces correspond to geophone channels and the remaining traces correspond to DAS measurements along the fiber in well 16B. The dataset consists of sequential time-based HDF5 files, each representing a different segment continuous acquisition. File names correspond to the acquisition start time in UTC. Each file contains strain-rate measurements recorded at a 1000 Hz output data rate with a gauge length of 10 m and a spatial sampling interval of approximately 2.04 m along the fiber. The primary data are stored as 16-bit integer strain-rate values in a two-dimensional array organized by time and spatial channel, accompanied by a corresponding microsecond-resolution time vector. Metadata describing more acquisition parameters, instrument configuration, and system settings are embedded within the HDF5 files. These metadata include details such as pulse rate, spatial configuration of the fiber, instrument information, and timing references. The recorded measurements represent strain-rate data with units of (nm/m)/s * Hz/m, and users should consult the embedded acquisition metadata for additional parameters required to interpret the measurements.

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
                                            [
  "019:20"
]
contactPoint 
                                            {
  "fn": "Maisha Ahmad",
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  "hasEmail": "mailto:maisha.ahmad@fervoenergy.com"
}
dataQuality 
                                            true
description This dataset contains microseismic data acquired during the Frisco pad flow test project led by Fervo Energy, conducted between August and September 2025 near the Utah FORGE geothermal site. The data were recorded using a Distributed Acoustic Sensing (DAS) fiber installed in well 16B, with additional geophone channels included in the dataset. Measurements were collected using a Silixa iDAS system and stored in HDF5 (H5) format. Within each file, the first six traces correspond to geophone channels and the remaining traces correspond to DAS measurements along the fiber in well 16B. The dataset consists of sequential time-based HDF5 files, each representing a different segment continuous acquisition. File names correspond to the acquisition start time in UTC. Each file contains strain-rate measurements recorded at a 1000 Hz output data rate with a gauge length of 10 m and a spatial sampling interval of approximately 2.04 m along the fiber. The primary data are stored as 16-bit integer strain-rate values in a two-dimensional array organized by time and spatial channel, accompanied by a corresponding microsecond-resolution time vector. Metadata describing more acquisition parameters, instrument configuration, and system settings are embedded within the HDF5 files. These metadata include details such as pulse rate, spatial configuration of the fiber, instrument information, and timing references. The recorded measurements represent strain-rate data with units of (nm/m)/s * Hz/m, and users should consult the embedded acquisition metadata for additional parameters required to interpret the measurements.
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]
identifier https://data.openei.org/submissions/8638
issued 2026-02-11T07:00:00Z
keyword 
                                            [
  "Cape EGS",
  "DAS",
  "Distributed Acoustic Sensing",
  "EGS",
  "Fervo Energy",
  "H5",
  "HDF5",
  "Silixa iDAS",
  "Utah FORGE",
  "Well 16B",
  "downhole fiber-optic sensing",
  "energy",
  "fiber-optic sensing",
  "flow test",
  "frisco pad",
  "geophysics",
  "geothermal",
  "induced seismicity",
  "microseismic monitoring",
  "raw data",
  "strain-rate"
]
landingPage https://gdr.openei.org/submissions/1816
license https://creativecommons.org/licenses/by/4.0/
modified 2026-03-18T19:59:35Z
programCode 
                                            [
  "019:006"
]
projectLead Angel Nieto
projectNumber EE0007080
projectTitle A Greenfield EGS pilot demonstration at Milford, Utah
publisher 
                                            {
  "name": "Fervo Energy",
  "@type": "org:Organization"
}
spatial 
                                            "{"type":"Polygon","coordinates":[[[-112.916367,38.483935],[-112.879748,38.483935],[-112.879748,38.5148],[-112.916367,38.5148],[-112.916367,38.483935]]]}"
title Cape EGS: Frisco Pad Flow Test Microseismic DAS Data

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