# Calculate the properties of your reservoir fluids with a free, online PVT calculator.

Use the simplest fluid property calculator. And obtain any black oil or dry gas property quickly and easily.

## Fluid Property Calculator

##### Gas Z Compressibility Factor

All the dry gas properties depend on the gas z factor. Therefore, the gas z factor is the most important property to calculate.

##### Gas Formation Volume Factor

An analytical equation is used to calculate the gas formation volume factor. However, this equation relies on the gas z factor.

##### Oil Bubble Point Pressure

Firstly, calculate the bubble point pressure. That's because any other black oil property depends on this property.

##### Solution Gas-Oil Ratio

Secondly, calculate the solution gas-oil ratio. That's because it's directly affecting all the subsequent black oil properties.

##### Oil Formation Volume Factor

Use the most popular correlations to calculate the oil formation volume factor. To clarify, used for saturated reservoirs.

##### Oil Viscosity

For instance, the Bergman-Sutton (2006-2009) correlations are used to calculate the oil viscosity at any reservoir pressure.

##### Oil Density

Similarly, the oil density depends on the correlations used for the solution gas-oil ratio and the oil formation volume factor.

##### Oil Compressibility

The values estimated for oil compressibility at pressures below the bubble point pressure are based on the listed correlations.

##### Total Formation Volume Factor

The estimation of the total (two-phase) formation volume factor is based on an analytical equation.

##### Gas-Oil Surface Tension

Finally, the Asheim (1989) correlation, for instance, requires values for both the gas and oil formation volume factors.

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