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University Training Equipment

Porosimeter, Gas PORG-200


Porosimeter Porg-200

The PORG-200 is specifically designed to assist universities and other teaching institutions with the hands on instruction process.

The PORG-200 provides a modern state of the art measuring instrument that allows the student to go through the measurement process in a structured transparent method. This instruction-focused design allows the student to build on his basic knowledge of porosity.

The instrument is based on Boyle’s law and allows the student to make grain volume measurements on core plugs. This information combined with bulk volume data allows for the calculation of sample porosity.

The instrument is forgiving in it’s operation and requires neither mercury nor elevated confining pressures to operate, enhancing user safety.


Porosimeter PORG-200

Instrument includes:

  • Sample chamber, matrix cup (grain volume cell) for one-inch diameter samples, includes five calibrated disks for system calibration.
  • Integrated pressure transducer, reference cell and gas flow manifold assembly
  • Digital data read-out
  • Thermometer
  • Associated plumbing
  • Manual and Excel spread sheet calculation template

The core sample is seated in the matrix cup. Helium is isothermally expanded into the matrix cup from the reference cell. The initial helium pressure of the reference cell is recorded. The reference cell volume is known and also recorded. The resultant equilibrium pressure is then measured. Both pressures are measured with the digital transducer and visually displayed. The original volume of the matrix cup cell is known. The only unknown is the grain volume and this is resolved using Boyles law.