EGS Collab Experiment 1: Continuous Active-Source Seismic Monitoring (CASSM) Data

Description

The U.S. Department of Energy's Enhanced Geothermal System (EGS) Collab project aims to improve our understanding of hydraulic stimulations in crystalline rock for enhanced geothermal energy production through execution of intensely monitored meso-scale experiments. The first experiment was performed at the 4850 ft level of the Sanford Underground Research Facility (SURF), approximately 1.5 km below the surface at Lead, South Dakota. The data reported here were collected by the continuous active-source seismic monitoring (CASSM) system (Ajo-Franklin et al., 2011). This system was permanently installed in the testbed and consisted of 17 piezoelectric sources that were recorded by 2-12 channel hydrophone arrays, 18 3-C accelerometers, and 4 3-C geophones at a Nyquist frequency of 24kHz. The source array was activated in a repeated sequence of shots (each source fired 16 times and stacked into resultant waveforms) for the duration of the experiment (April 25, 2018 - March 7, 2019) with few exceptions. Please see the attached documents describing the source / receiver geometry. The data are available in both seg2 (.dat extension) and segy (.sgy extension) format. Each segy file contains multiple seg2 files.

Resources

Name Format Description Link
47 Plain text file with receiver geometry https://gdr.openei.org/files/1368/Geode_01.txt
53 The main source / receiver mapping document https://gdr.openei.org/files/1368/SigmaV_Channel_Monitoring_Rev_1.0_PetrovMod.xlsx
53 As-built depths for the well instrumentation https://gdr.openei.org/files/1368/WellInstrumentation_depths_as_built.xlsx
33 EGS Collab Testbed 1 accelerometer orientations with LAUR number https://gdr.openei.org/files/1368/EGS_Collab_Testbed1_Accelerometers_Orientations_with_LAUR_Number_updated%20%281%29.pdf
21 EGS Collab CASSM data on AWS. Data ranges from April 25, 2018 to March 7, 2019 with few exceptions. The data are available in both seg2 (.dat extension) and segy (.sgy extension) format. Each segy file contains multiple seg2 files. These data are available for download without login credentials through the free and publicly accessible Open Energy Data Initiative (OEDI) data viewer which allows users to browse and download individual or groups of files. https://data.openei.org/s3_viewer?bucket=gdr-data-lake&prefix=egs_collab%2Fexperiment_1%2FEGS_CASSM%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/

Tags

  • experiment-1
  • meso-scale
  • geophysics
  • experiment
  • egs
  • surf
  • geophone
  • imaging
  • egs-collab
  • well-instrumentation
  • sanford-underground-research-facility
  • monitoring
  • cassm
  • accelerometer
  • fracturing
  • stimulation
  • seismic
  • hydraulic
  • hydrophone
  • geothermal
  • energy
  • active-source
  • continuous

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