Steady state gas permeameter and porosimeter Routine core analysis Instruments

The versatile instrument 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 :

• 0.01 md 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