Difference between revisions of "Gas compressibility factor"

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Revision as of 12:11, 30 September 2020

Brief

gas compressibility factor is the ratio of the Real Gas volume to the Ideal Gas volume, which is a measure of the amount that the gas deviates from the perfect behavior.

z = \frac{Actual\ volume\ of\ gas\ at\ specified\ T\ and\ P}{Ideal\ volume\ of\ gas\ at\ same\ T\ and\ P} [1]
Z factor in the PVT Tool at www.pengtools.com

Discussion

Dranchuk correlation is the default correlation for the gas compressibility factor in the PVT tool.

Nomenclature

P = Pressure, psia
T = Temperature, °R
z = Gas compressibility factor, dimensionless

See also

Ideal Gas
Real Gas
gas compressibility factor
EOS

References

  1. ↑ Fanchi, John R. (2006). Petroleum Engineering Handbook, Volume I: General Engineering. 1. SPE. ISBN 978-1-55563-108-6. 
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