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

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

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

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

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

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

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

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

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

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