POROPERM-Steady state gas permeameter and porosimeter


The versatile POROPERM determines both porosity and permeability to gas of plug-sized core samples. Specifically, porosity is determined from an isothermal nitrogen expansion and the application of Boyle’s law and Charles’ law. Gas permeability determination is achieved via the steady-state method, and subsequently the equivalent liquid permeability and slip is obtained by linear interpolation. The standard configuration consists of a control console, a quick-release Hassler core holder, a matrix cup and a data acquisition computer station enabling both manual and automatic operation. A hydrostatic high-grade stainless steel core holder can be provided for overburden pressure studies.


Permeability: Range: 0.01md to 10 darcies
Flow Pressure: 0 - 150 psi
Confining Pressure: 0 - 400 psi (option 10,000 psi)
Gas flow: 0-50 and 0-600 cc/min
Temperature: Ambient Pressure transducer accuracy: 0.1% F.S.
Flow accuracy: 1 % F.S.
Core diameter: 1” and 1.5” (option)
Core length: Up to 3”
Power requirement: 110-220 VAC, 50 or 60 Hz