Difference between revisions of "Gas compressibility factor"

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:<math> z = \frac{Actual\ volume\ of\ gas\ at\ specified\ T\ and\ P}{Ideal\ volume\ of\ gas\ at\ same\ T\ and\ P} </math> <ref name=PEHvol1 />
 
:<math> z = \frac{Actual\ volume\ of\ gas\ at\ specified\ T\ and\ P}{Ideal\ volume\ of\ gas\ at\ same\ T\ and\ P} </math> <ref name=PEHvol1 />
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[[File:zfactor.png|thumb|right|400px|link=https://www.pengtools.com/pvtCalculator|Z factor in the PVT Tool at www.pengtool.com|right]]
  
 
== Discussion  ==
 
== Discussion  ==

Revision as of 12:07, 20 November 2017

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.pengtool.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.