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Free Online PVT Calculator

Calculate the properties of petroleum reservoir fluids with a reliable, simple PVT calculator. Use the Brill-Beggs gas formation volume factor calculator.

Gas Formation Volume Factor Calculator

Brill-Beggs (1974)

N.B. This gas formation volume factor calculator applies the Brill-Beggs (1974) correlation for the gas compressibility z-factor. Standard conditions are assumed to be 14.65 psia and 60°F. Want more details? Discover Brill-Beggs (1974) correlation.

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10% error in the reservoir PVT properties leads to a 10% error in your estimated reserves. And that's why you need a reliable fluid property calculator.

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Fluid Property Behavior

Gas Formation Volume Factor

In this section, I would like to make sure that you can easily describe the behavior of your gas formation volume factor at any reservoir pressure. Therefore, I will give you brief technical notes by answering three questions.
The behavior of gas formation volume factor at any reservoir pressure
Behavior of the gas FVF vs. pressure
Why does the gas formation volume factor increases as pressure decreases?
The gas formation volume factor indicates how much the gas volume would change as a response to the change in pressure. As pressure decreases, the gas sharply expands due to its high compressibility. As a result, the gas formation volume factor increases as well. Actually, almost all the black oil properties respond differently to the decrease in reservoir pressure.
What are the PVT properties that affect the gas formation volume factor estimated value?
The gas formation volume factor is strongly dependent on the values estimated for the gas z compressibility (deviation) factor.
What are the PVT properties that depend on the gas formation volume factor estimated value?
The gas viscosity, the gas density, the gas isothermal compressibility, the total formation volume factor, and the gas-oil surface (interfacial) tension are all strongly dependent on the gas formation volume factor estimated value.

1,268+ petroleum engineers are using PVT Solver to describe the behavior of their reservoir fluid properties.

"Excellent software to predict fluid properties that are vital for any reservoir simulation study."
Atif Ismail, MSc.
Atif Ismail, MSc.Petroleum and Gas Engineering Lecturer,
University of Engineering and Technology,
Lahore, Pakistan
"A user-friendly tool for black-oil calculations. I recommend using PVT Solver software."
Babak Moradi, PhD.
Babak Moradi, PhD.Consultant Reservoir Engineer,
Petroxin Limited,
London, UK
"An easy and intuitive application that applies the most popular fluid correlations in the industry."
Humberto Rondon,
Humberto Rondon,Reservoir and Field Development Engineer,
PDVSA Oil and Natural Gas Company,
Zulia, Venezuela

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