Utah FORGE: 2022 Seismic Workshop Report

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Utah FORGE held a two-day seismic workshop on the University of Utah campus in Salt Lake City, Utah on September 26 and 27, 2022 to share what was learned from the seismic monitoring during the 2022 stimulation. This is a report documenting this workshop. The meeting was structured to cover four key topics: (1) seismic instrumentation, (2) seismic network design, (3) seismic monitoring protocol, and (4) development and implementation of seismic traffic light systems.

Utah FORGE: Source Imaging DAS-Based Seismic Event Catalog - April 2024 Stimulation

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This catalog contains microseismic event locations recorded during the April 2024 stimulation at the Utah FORGE site. Events were detected and located using a DAS-specific source imaging workflow that avoids conventional phase picking. Instead, STA/LTA-transformed DAS and downhole geophone traces were back-propagated through a calibrated 1D velocity model to generate a coherency field across a 3D subsurface grid. Events were identified at locations where P- and S-wave back-projections constructively aligned, and associated uncertainties were estimated from the spatial coherency distribution.

Utah FORGE: Seismic Activity from April, 2019

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This dataset contains seismic event detections acquired using the 151 Nodal geophones deployed at the Utah FORGE site in April 2019. Details regarding the publishing are available in the paper linked below (Mesimeri, M. and K. L. Pankow et al. 2020). A frequency-domain-based algorithm for detecting induced seismicity using dense surface seismic arrays, Geophys. J. Int, submitted.

Utah FORGE: Seismic Activity from April, 2019

공공데이터포털

This dataset contains seismic event detections acquired using the 151 Nodal geophones deployed at the Utah FORGE site in April 2019. Details regarding the publishing are available in the paper linked below (Mesimeri, M. and K. L. Pankow et al. 2020). A frequency-domain-based algorithm for detecting induced seismicity using dense surface seismic arrays, Geophys. J. Int, submitted.

Utah FORGE: Seismic Event Catalogue from the April, 2022 Stimulation of Well 16A(78)-32

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This dataset includes earthquake catalogues for the three stages of the 2022 well 16A(78)-32 stimulation provided by Geo Energie Suisse. Events in these catalogues have been visually inspected. There are additional events of lower signal to noise that were automatically detected. Those events will require additional analysis and processing. Times are recorded in UTC (Coordinate Universal Time), and the coordinate reference system is UTM Zone 12N, NAD83.

Utah FORGE: Seismic Event Catalogue from the April, 2022 Stimulation of Well 16A(78)-32

공공데이터포털

This dataset includes earthquake catalogues for the three stages of the 2022 well 16A(78)-32 stimulation provided by Geo Energie Suisse. Events in these catalogues have been visually inspected. There are additional events of lower signal to noise that were automatically detected. Those events will require additional analysis and processing. Times are recorded in UTC (Coordinate Universal Time), and the coordinate reference system is UTM Zone 12N, NAD83.

Utah FORGE: Updated Seismic Event Catalogue from the April, 2022 Stimulation of Well 16A(78)-32

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These are revised catalogs, related to the April, 2022 well 16A(78)-32 stimulation (phases 1,2, & 3), provided by Geo Energie Suisse (GES) that include additional events at the start of Stage 1 and some tidying up of some locations. These catalogs also include events for additional events that were auto-located to provide a larger dataset for statistical analyses, like b-value calculations. The actual auto-locations have been removed to prevent spurious location plots being created. Times are recorded in UTC (Coordinate Universal Time), and the coordinate reference system is UTM Zone 12N, NAD83.

Utah FORGE: Updated Seismic Event Catalogue from the April, 2022 Stimulation of Well 16A(78)-32

공공데이터포털

These are revised catalogs, related to the April, 2022 well 16A(78)-32 stimulation (phases 1,2, & 3), provided by Geo Energie Suisse (GES) that include additional events at the start of Stage 1 and some tidying up of some locations. These catalogs also include events for additional events that were auto-located to provide a larger dataset for statistical analyses, like b-value calculations. The actual auto-locations have been removed to prevent spurious location plots being created. Times are recorded in UTC (Coordinate Universal Time), and the coordinate reference system is UTM Zone 12N, NAD83.

Utah FORGE DAS Seismic Data 2022

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This is a link to the website where DAS seismic data, collected from wells 78-32 and 78B-32 during the Utah FORGE 2022 stimulation, is now available for download. The data can be accessed at "Well 16A78-32 2022 Stimulation Seismicity Data" link in the submission under the Silixa heading. The page includes surface acquisition nodal datasets, downhole geophone data, and Silixa fiber data. Raw seismic stimulation data and the scripts to process this data is under the Silixa heading.

Utah FORGE: Phase 3A Year 1 Annual Report for 2020

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This is the Utah FORGE annual report for Phase 3A year 1, which was completed on December 28th, 2020. This report includes site infrastructure, site operations, seismic monitoring, a conceptual geological model, outreach, and communications for the Utah FORGE project during Phase 3A in 2020. Utah FORGE projects showcase the role of geothermal energy and Enhanced Geothermal Systems (EGS) as a renewable source of power for the United States. The geoscientific investigations done in the Utah FORGE projects demonstrate the surrounding region holds significant potential for future EGS development.