Helium Porosity Measurement

Measuring of porosity of a rock is necessary in order to interpret the reservoir behavior and capabilities in terms of hydrocarbon storage and production. Moreover, this main property of rock is beneficial to geotechnical researches as well as non-petroleum areas. The porosity of a material is defined as the ratio of the volume of open space (pore volume) to the total volume (bulk volume).

In this experiment, helium percolates to the sample from a reference volume. Pressure drop during the test is measured. Pore volume is estimated from Boil-Mariot’s law. Considering the bulk volume of the sample, effective porosity of the sample can be estimated.


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