Utah FORGE: Triggered DAS and Continuous Downhole Geophone Data from April 2024 Stimulations

Description

This dataset contains distributed acoustic sensing (DAS) and downhole geophone data collected during the April 2024 stimulation experiments at the Utah FORGE site. DAS data were acquired from well 16B(78)-32 by Neubrex and processed by GeoEnergie Suisse (GES), covering the period from April 1 to April 19, 2024. The DAS data are stored in a non-standard SEGY format due to trace lengths exceeding compatibility limits in standard tools such as ObsPy. To facilitate use, a custom Python module is included for reading the data into ObsPy streams. The DAS files are sampled at 4000 Hz with 12-second traces (48,000 samples per trace), and timestamp information includes millisecond and microsecond precision via custom header fields. The dataset also includes continuous downhole geophone data, available in both raw and curated forms, with some data gaps. These data were recorded from March 28 to April 17, 2024, using instruments deployed in three wells: 58-32, 78B-32, and 56-32. The curated geophone data include detailed metadata, local receiver coordinates, and documentation on outages and instrument changes. Sampling rates vary by well and tool: GES tools in wells 56-32 and 78B-32 recorded at 4000 Hz, while SLB instrumentation in well 58-32 used a 2000 Hz sampling rate. Note that the data from 58-32 were not synchronized with the other wells, and usage is only recommended after extensive quality control.

Resources

Name Format Description Link
21 This is the DAS data in SGY file format, organized by data and time of collection. SGY files cannot be opened with most standard software--see the attached GitHub repository for tools to open the files. https://data.openei.org/s3_viewer?bucket=gdr-data-lake&prefix=FORGE%2FDAS%2Fapril_2024%2FNeubrex%2F16b_triggered
21 This is the curated geophone data in mini-seed file format, accompanied by metadata matching the provided receiver files. Please see the included README.doc file for detailed descriptions of file structure, file naming, data integrity, reference coordinates, and other information. https://data.openei.org/s3_viewer?bucket=gdr-data-lake&prefix=FORGE%2FGeophone%2Fapril_2024%2FGES%2Fv1.0.0%2F
21 This is the raw data that was processed to create the curated geophone data. Data are in the raw seg2 formats as delivered by the original contractors. Users are encourage to use the curated data, as this is included chiefly for completeness. https://data.openei.org/s3_viewer?bucket=gdr-data-lake&prefix=FORGE%2FGeophone%2Fapril_2024%2FGES%2Fraw%2F
21 AWS public dataset program registry page for data released under the Department of Energy's (DOE) Geothermal Data Repository (GDR) Data Lake. The registry page contains information about dataset documentation, access, and contact, for each of the GDR Data Lake datasets. https://registry.opendata.aws/gdr-data-lake/
21 This repository is designed to provide a reference for reading the DAS data acquired by GES at FORGE in April 2024. This data is essentially SEGY format, but issues with trace lengths make the files incompatible with standard seismic processing tools such as ObsPy. This is a custom reader module that loads the data into a standard ObsPy stream. https://github.com/motionsignaltechnologies/reading-forge-DAS-segy-Apr2024

Tags

  • triggered-events
  • geophysics
  • processed-data
  • distributed-acoustic-sensing
  • aprill-2024
  • 56-32
  • 16b78-32
  • egs
  • utah-forge
  • hydraulic-fracturing
  • geophones
  • downhole-seismic
  • geoenergie-suisse
  • countinuous-data
  • stimulation
  • das
  • monitoring-well
  • seismic
  • neubrex
  • 58-32
  • ges
  • downhole
  • raw-data
  • geothermal
  • energy

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