Product Code: 127-00
Availability: Out Of Stock

The permeability of a petroleum reservoir is one of the most influential parameters in determining the production capabilities of a producing formation. Permeability is a measure of the ability of a fluid to flow through a porous media when subjected to a differential pressure and is mathematically equated by Darcy’s law.

The Reservoir Permeability Tester was developed to evaluate how fluids affect the permeability of a core specimen. In addition, the unit may be used to evaluate acidizing techniques and to develop typical Acid Response Curves (ARCs).

*Not for use with heavy crudes.  Fluids must be in a liquid state at ambient temperature.


  • Manual valves enable forward and reverse injection through core holder for 3 separate fluids and nitrogen gas
  • Hassler-type core holder rotates for either horizontal or vertical testing orientation
  • Wetted materials are 316 Stainless Steel (HC-276 is available on request)
  • Two-piece cabinet construction, with storage area below and locking swivel castors for mobility
  • Comes with PC and data acquisition software


  • Core holder can test cores 1” or 1 ½” diameter x 6” maximum length
  • Accumulators: three separate piston accumulators, 1.5 liters each
  • Drive Pressure: 3,000 PSI maximum
  • Confining Pressure: 5,000 PSI maximum
  • Back Pressure: 1,000 PSI maximum
  • Core Holder Temperature: 400°F (204.4°C) maximum
  • Fluid Injection Flow Rate: 0 to 10 ml/min
  • Size: 44” wide × 20” deep × 60” tall (112 × 51 × 152 cm)
  • Weight: 760 lb (344.7 kg)


  • Air: 100 PSI
  • Nitrogen: 2,000 PSI
  • Water: tap pressure (30 to 40 PSI is typical)
  • Electrical: 230 VAC, 30 amps

Part Number

  • #127-00