Difference between revisions of "Gas compressibility factor"

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== Brief ==
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== Standing and Katz gas compressibility factor ==
  
 
[[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.
 
[[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.
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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 />
  
[[File:zfactor.png|thumb|right|400px|link=https://www.pengtools.com/pvtCalculator|Z factor in the PVT Tool at www.pengtools.com|right]]
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[[File:zfactor.png|thumb|right|400px|link=https://www.pengtools.com/pvtCalculator|Z factor in the PVT software at pengtools.com|right]]
  
 
== Discussion  ==
 
== Discussion  ==
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:<math> z </math> = Gas compressibility factor, dimensionless
 
:<math> z </math> = Gas compressibility factor, dimensionless
  
=== See also ===
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== See also ==
 
[[Ideal Gas]]<BR/>
 
[[Ideal Gas]]<BR/>
 
[[Real Gas]]<BR/>
 
[[Real Gas]]<BR/>
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Latest revision as of 11:59, 5 October 2020

Standing and Katz gas compressibility factor

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 software at 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.