The “PIK-GGC-6” group gravimetric capillarymeter

The group capillarymeter PIK-GGC-6 is designed to determine core samples capillary properties and residual water saturation using a semipermeable membrane at atmospheric conditions in accordance with OST 39-204-86. The method is considered classical and is based on displacement of the fluid saturating sample pore space under influence of excess gas pressure with periodic weighing of samples to assess their current saturation. The results of research are capillary pressure curves and values of the residual (irreducible) water saturation of each sample. Sample electrical resistance (PIK-UES) is usually measured simultaneously with its weighing to determine saturation parameter and calculate the Dakhnov-Archie dependence. Capillary properties are determined in the excess gas pressure range from 0.0007 to 1.38 MPa in the entire range of sample permeability and water saturation of samples pore space from 100% to residual values.

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Benefits/Capabilities:

Desaturation camera is made of stainless steel, providing its resistance to aggressive environments and durability
Up to 6 desaturation chambers can be connected to the capillarymeter control panel through 6 pressure control units
Precision mechanical pressure regulators are used to maintain pressure
Each control line with a connected camera allows creating any pressure level in the entire possible range

Measured parameters

Current and residual water saturation of the sample
Saturation parameter
Capillary pressure curve

Technical specifications

Tested sample diameter, mm	30; 38,1; 100; 110
Inner camera diameter, mm	290
Tested sample length, mm, no more than	150
Working temperatures, ^ºС, no more than	5-30
Maximum desaturation pressure, MPa	1,5
Minimum desaturation pressure, MPa	0,0007

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