• Continuous record of injection pressure, flow rate, and electrical conductivity versus depth
  • Data can be used to empirically estimate a depth profile of in-situ permeability
  • Deployed from CPT rigs with CPT rods
  • Deployed with or without CPTu


  • Rapid and cost-effective alternative to borehole permeability investigations
  • HPT provides a depth profile of measurements that are used to estimate the in-situ permeability
  • Pushed using CPT rigs from the ground surface


  • Geoenvironmental site investigations
  • Hydrogeological site investigation
  • Relative permeability
  • Detailed stratigraphic and hydrological profiling