Rolling Ball Viscometer

Rolling Ball Viscometer

Manufacturer: Vinci Technologies
Model Number: RBV-1000

The rolling ball viscometer determines the viscosity of samples collected either down hole or at the surface. It uses the rolling ball principle where the travel time of a piston is used to obtain viscosity data, which are derived from correlation with curves of fluids with known viscosities. The RBV 1000 consists of a calibrated barrel equipped with two laser detectors at each end and a latch at its upper end. The latch holds and releases the piston while the lasers detect its departure and arrival, thereby allowing the travel time to be determined. A homogeneous, constant temperature profile is ensured by virtue of a heating mantle wrapped around the barrel. A computer system acquires the falling time and calculates the viscosity value.


Pressure range : 15,000 psi
Temperature range : ambient to 190°C
Viscosity range : 0.2 to 10,000 cp
Cylinder slope : 25°, 65°
Sample volume required : 11 ml
Power supply : 220 VAC, 50 Hz


* Easy to use
* Cost effective
* Accurate measurement for particular heavy oil
* Reservoir conditions of pressure and temperature
* Large range of viscosity