The “PIK-GEOVIS-700” program-measuring complex for determining gases and liquids viscosity

The PIK-GEOVIS-700 capillary viscometer is designed to measure gas and liquid viscosity at reservoir conditions in the range from 0.1 mPa-s to 10,000 mPa-s in accordance with GOST 7163-84.

Fluid viscosity is calculated by solving the Hagen-Poiseuille equation in accordance with the set pressure drop and flow rate values when flowing through one of the three capillaries of known geometry. Sample is supplied through capillary by piston pump, which ensures necessary pressure and flow rate accuracy. Tanks and capillaries are in thermostatically controlled volume.

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Measured parameters

Fluid viscosity at reservoir conditions

Technical specifications

Type	capillary
Maximum working pressure, MPa	70
Maximum working temperature, °С	150
Temperature maintenance accuracy, °С	± 1
Determined viscosity minimum value, MPaˑc	0,1
Determined viscosity maximum value, MPaˑc	10 000
Minimum flow rate, ml / min	0,001
Maximum flow rate, ml / min	25
Volume supply resolution, nl	23,8
Cylinder volume, ml	100
Maintaining flow rate accuracy,% of current value 0	0,5
Pressure maintenance accuracy,% of VPI	0,5
Material	stainless steel