Multi-packer long-term monitoring systems, Nagra TBO

Selected TBO boreholes are equipped with multi-packer long-term monitoring systems to measure groundwater levels and pressures from specific formations and to collect groundwater samples from selected aquifers. Solexperts was contracted by Nagra to supply and install 3 multi-packer systems with seven monitoring intervals in three vertical TBO boreholes.

Main components of the packer systems

  • Central tubing string
  • Hydraulically inflatable packers
  • Observation lines with ports/filters to measure the hydraulic pressure in the observation intervals
  • Sliding sleeves, as additional access to the aquifers for groundwater sampling
  • Pressure sensors for measurement of the observation interval and the packer pressures
  • Data acquisition system
  • Fibre optic sensor cable for distributed temperature measurement


Michael Kech

Product Manager KVZ

Member of the extended executive board
Manager Hydro Systems / Groundwater monitoring and testing systems / Mining / CO2 sequestration / Marketing / Asia, South America

T +41 (0) 44 806 29 54

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