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

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.