GPE-Educational steady State Gas Permeameter


The GPE-E accurately determines the permeability to gas of plug-sized core samples at ambient temperature and moderate confining pressure by virtue of the steady state method. The latter implies a constant flow rate across the sample. Gas can be injected over a wide range of pressures and flow rates. The core inlet pressure is continuously monitored by an inline pressure transducer while the gas flow rate is reported by a high-grade mass flow meter. The apparatus can be used with both consolidated and unconsolidated core samples previously prepared in metal or plastic sleeves with screens at the ends. An Excel spreadsheet calculation template allows for calculation of parameters and also calibration data.


Permeability: Range : 1md to 1 darcy
Flow Pressure: 0 to 100 psi
Gas flow: 0-500 cc/min
Temperature: ambient
Temperature accuracy: +/- 0.1 °C
Pressure transducer accuracy: 0.1% F.S.
Flow accuracy: 1 % F.S.
Nitrogen supply: 250 psi
Power: 110-220 VAC, 50 or 60 Hz