Silixa will be presenting at the 86th EAGE Annual Conference and Exhibition in Toulouse, France at Workshop 18, titled Distributed Fiber Optic Sensing for Seismic Applications, on 6th June 2025.
Dr. Athena Chalari, Silixa’s Business Development Manager — Environmental & Earth Sciences, will share the details of a case study investigating the the application of DAS for geothermal monitoring.
The presentation, titled Advancing Geothermal Monitoring with Distributed Acoustic Sensing: Insights from Utah FORGE and UKGEOS, will detail the findings of a study that used Silixa’s iDAS in two geothermal settings: at the Utah FORGE Enhanced Geothermal System (EGS) and the UK Geoenergy Observatory (UKGEOS) in Glasgow.
At Utah FORGE, DAS data analysis of microseismic events recorded during July 2023 circulation tests suggests that microseismic source mechanisms derived from DAS data can inform models of fracture distribution and connectivity, which is essential for understanding EGS performance. The findings also imply that future integration of a third DAS array in a deep vertical well and a dense surface geophone network may enhance seismic monitoring capabilities.
At UKGEOS, the use of DAS was evaluated for crosswell seismic imaging in shallow boreholes within an abandoned coal mine repurposed for geothermal heat storage. While high noise levels limited first-arrival detection beyond 30 m, DAS coda enhanced spatial resolution and captured refracted arrivals, enabling a precise identification of discrete subsurface layers.
The studies highlight the potential of DAS for geothermal energy applications, offering valuable insights for reservoir characterization and long-term sustainability.
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