The “PIK-UES” automated device for measuring core samples electrical resistance

The PIK-UES device is designed to measure electrical resistance of rock samples and reservoir water samples (or its models) at atmospheric conditions in accordance with GOST 25494-82. The measured values of samples electrical resistance are used to calculate resistivity, as well as porosity and saturation parameters, the Dakhnov-Archie indicators of a, m and n dependence. Measurements accuracy is achieved by using a pneumatic electrode close to the sample surface, providing stable clamping force.

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Benefits/Capabilities:

Meet the requirements of GOST25494-82. The rocks. Method for determining electrical resistivity.
Carrying out measurements according to 2 and 4 electrode scheme
Transparent protective device prevents samples drying during measurements\
Special electrodes using in the device minimizes contact resistance
Computer data acquisition system for measurement results automatic recording

Measured parameters

Rock samples electrical resistivity
Pore fluids electrical resistivity
Porosity parameter
Saturation parameter “n”
Cementation coefficient “m”

Technical specifications

Measurement method	2 and 4 electrode
Electrical resistance measurement range, Ohm	from 0.1 to 10000
Current frequency, Hz	50 ÷ 10 000
Electrical resistivity determination Accuracy, %	3
Tested samples diameter, mm	from 20 to 103
Tested samples length, mm	from 10 to 85