How does a helium Porosimeter work?

The Helium gas expansion porosimeter enables the determination of a sample’s (1” or 1.5” diameter) grain and pore volume via an isothermal helium expansion and the application of Boyle’s law and Charles’ law. Subsequently, porosity and grain density can be calculated.

Why do we use helium gas for porosity determination?

Helium gas is used to measure the “true density” and “true porosity” with the assumption that helium being the smallest atom should be able to penetrate the smallest of pores whereas other fluids may not. density and helium porosity of two core samples.

How does mercury porosimetry work?

Mercury porosimetry is used to measure the porosity of a material by applying controlled pressure to a sample immersed in mercury. The amount of pressure required to intrude into the pores is inversely proportional to the size of the pores. The larger the pore the smaller the pressure needed to penetrate into the pore.

What is mercury intrusion method?

Mercury intrusion porosimetry (MIP) is a powerful technique utilized for the evaluation of porosity, pore size distribution, and pore volume (among others) to characterize a wide variety of solid and powder materials. As pressure is applied, mercury fills the larger pores first.

How is the porosity of a helium core determined?

DISCUSION The helium expansion Porosimeter is designed to rapidly and precisely determine the effective porosity of 1” and 1.5” diameter reservoir core samples using Boyle’s law of gas expansion.at the finally we found porosity of a sample that equal to (-4.68%).

How does the DCI helium porosimeter software work?

Easily generate a printable porosity report for all your test samples by simply connecting the unit to an available computer and loading the DCI Porosimeter Software. This software makes it easy to record information in a 3 step process. The helium porosimeter is simple, fast, and accurate.

How is the porosity of a core sample determined?

A helium porosimeter was utilized to equilibrate and quantify the total or helium porosity of two core samples. The calibration of the helium porosimeter was already performed. The addition of a core sample to the matrix cup was sealed off by discs which prevented any unwanted volume to be measured by the helium atoms.

How is the volume measured in helium pycnometry?

This cup is then placed into the sample chamber. Gas is introduced to the sample chamber and then expanded into a second empty chamber with a known volume. The pressure observed after filling the sample cell and the pressure discharged into expansion chamber are measured, and then the volume is calculated.