Reference Standard: SY-T 5542-2009 Analysis Method for Physical Properties of Fluid in Oil and Gas Reservoirs
1. Overview
The formation fluid PVT analyzer is an experimental device for determining the high-pressure physical properties of formation crude oil, which is mainly composed of a UPX-II PVT analyzer, a UPX-II-70 formation fluid saturation instrument, a UPX-1000-70 formation fluid sample instrument, a phase state analyzer, a UPL-50 high-temperature and high-pressure falling ball viscometer, and a gas meter. The instrument can carry out the following research:
1. Analysis and calculation of reservoir fluid composition: according to the single degassing gas volume and oil volume or oil and gas samples taken from the separator, the mole number of each component of the well flow is calculated according to the component content. Heptane above molecular weight and relative density and other parameters.
2. Constant mass expansion experiment: used to obtain parameters such as saturation pressure, relative volume, Y function thermal expansion coefficient, etc.
3, a single degassing experiment, used to obtain a single degassing gas-oil ratio, volume coefficient, formation crude oil density, compression coefficient, shrinkage and other parameters.
4, multiple degassing experiments, used to obtain the dissolved gas-oil ratio, volume, coefficient, two-phase volume coefficient, crude oil density, gas deviation coefficient, gas viscosity, gas relative density, gas formation volume coefficient and other parameters under each classification pressure.
5. Reservoir fluid equal volume depletion test
6. Separation experiment: By comparing the parameters such as gas-oil ratio, degassed oil density and formation volume coefficient under different separation conditions, the best separation conditions are selected to provide simulation calculation parameters.
7. Viscosity determination: determination of crude oil viscosity under formation conditions or different saturation pressures
2. System Description
1. UPX-II PVT analysis host
Main features of 1.1 instrument
The piston in the reaction cylinder is directly driven by the rigid connection of the transmission mechanism, and the computer directly measures and controls the volume change in the reaction cylinder through the servo motor; programmed temperature rise, multi-point heating, temperature control; permanent magnet magnetic ring strong stirring; computer The whole process of volume, pressure and temperature system detection and control. Software module design, with operating tips, system self-checking, fault-tolerant error correction function.
The humanized design of the whole machine can also be customized according to user preferences. Simple operation, safe and reliable. Easy replacement of wearing parts.

Main technical indicators of 1.2

1.2.1 Working pressure range: 0 ~ 70MPa
1.2.2 Pump volume 210ml,PVT pump volume 200ml, pump accuracy 0.01ml.
1.2.3 Working temperature: room temperature ~ 180 ℃. The temperature controller adopts PID self-tuning regulation.
1.2.4 stirring speed: maximum 30r/min, stirring mode: electromagnetic speed automatic stirring.
1.2.5 Accuracy: pressure level 0.1; temperature ± 0.1 ℃
1.2.6 Power supply: AC 380V,50Hz
1.2.7 Overall power: 2.4KW.
1.2.8 Chassis frame: profile plus cabinet or full cabinet.