After the successful seismic monitoring and geothermal stimulation experiment in Helsinki, Finland, ASIR was asked to provide, install, and maintain seismic monitoring equipment for an EGS (Enhanced Geothermal System) pilot project in Malmö, Sweden. The project is aiming to feed into Malmö’s district heating network by collecting hot water (up to 160°C) from a depth of 5000 – 7000 m.
ASIR was contracted to install a 25-level 3-component digital seismic vertical array plus two 3-component sensors (AG4.5) in two ~750 m deep satellite stations. Data from these networks are continuously telemetered to an ASIR developed and operated central recording facility. Data from these installations are analyzed with fastloc.reel and other software for the detection and interpretation of a full range of induced earthquake events.
More information and background on this project can be found on E.ON’s press release and e.g. on GeoDrillingInternational.com.