The PIT-PVT-light installation is designed to study the reservoir fluids phase behavior at conditions from reservoir to normal. Main element of the system are pumps installed in a heating cabinet and providing a fluid sample circulation in a closed circuit. The circuit includes a high-pressure and temperature densitometer, a capillary for viscosity measuring, and a high-precision differential pressure sensor. The installation includes a manual gas meter.
Research is carried out in accordance with GOST 153-39.2-048-2003.
| Hydraulic system | |
| PVT pump type | piston |
| Maximum working pressure, MPa 21 | 21 (optional 52) |
| PVT pump plunger volume, ml | 500 (optional 260) |
| Maximum working temperature, °C | 200 |
| Oil pump type | double plunger |
| Maximum working pressure, MPa | 21 (optional 52) |
| Pump plunger volume, ml | 500 (optional 260) |
| Viscosity measurement | two circuits |
| Densitometer maximum working temperature, °C | 200 |
| Temperature maintenance system | |
| Type | heating chamber, individual heaters |
| Operation mode | heating / cooling |
| Working temperature range, °C | from +5 to +200 |
| Temperature measurement accuracy, °С | no more than ±1 |
| Temperature setting resolution, °C | ± 0,1 |
| Heated elements | PVT pumps, supply tubes, densitometer, viscosity measurement circuits |
| Material | stainless steel |
| Emitted gas volume measuring system (gas meter) | |
| Control type | manual |
| Measuring cylinders number | 2 |
| Gas meter total volume | 3000 ml |
| Volume resolution, ml | 0,2 |
| Working pressure | atmospheric |
| Fluid-contact parts material | stainless steel, glass, PEEK |