System for PVT Studies & Wax/Asphaltene Precipitation Studies

Manufacturer: Vinci Technologies
Model Number: Fluid Eval

The Fluid Eval PVT system is designed to study phase behavior of hydrocarbon fluids at reservoir conditions of pressure and temperature. It can be used to perform PVT tests on black oil, volatile oil and gas condensate samples. It can also be configured with additional infrared, laser based solid detection system (SDS) and high pressure microscope (HPM) to perform a variety of asphaltenes and wax solid deposition experiments. The system uses an embedded high pressure pump to control the pressure and volume of the reservoir fluid in the cell. The unit can be configured for either oil or gas condensates studies by inverting the position of the cell using the motorized rocking system. A video camera system automatically determines the gas/liquid interface and measures the volume of retrograde condensate during gas condensate studies. A magnetic coupled stirrer mounted inside the sample chamber provides efficient fluid mixing and ensures fast equilibrium of sample phases. Homogeneous sample heating is provided by a controlled temperature air bath which can also be configured for sub-ambient temperature.



  • Phase behavior studies for black and volatile oils, gas condensates and near-critical fluids
  • Measure live fluid asphaltene precipitation onset and wax appearance temperature using laser-based solid detection system (SDS) and high pressure microscope (HPM)

Cell volume : 500 cc (standard Fluid Eval model)
1,000 cc (maxi Fluid Eval model)
Pressure : 15,000 psi
Temperature : Ambient to 200°C (option: -20°C)
Temperature regulation : ± 0.5 °C
Volume accuracy : 0.01 ml
Pressure accuracy : 0.1% Full scale
Liquid deposit accuracy : ± 0.01 ml
Power supply : 220 VAC, 50/60 Hz

  • Versatile design
  • Mercury free operation
  • Large cell volume for representative sample studies
  • Automated phase detection and phase volume measurement
  • Embedded pump for precise pressure control and volume measurement
  • Video camera system for recording PVT experiments in real time
  • Magnetic driven stirrer for rapid phase equilibrium
  • Motorized rocking system for cell positioning
  • Sub-ambient temperature control
  • Add-on modules for solid detection, viscosity and density measurement