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Implicit Implicit Z-factor Correlations correlation @model for the natural gas in the wide range of pseudo-reduced temperature 

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body--uriencoded--1.0 < T_%7Bpr%7D \leq 3.0
 and pseudo-reduced pressure 
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body--uriencoded--0.2 \leq P_%7Bpr%7D \leq 30

...

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bodyA_1 = 0.3265

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bodyA_2 = -1.070

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bodyA_3 = - 0.5339

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bodyA_4 = 0.01569

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bodyA_5 = - 0.05165

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bodyA_6 = 0.5475

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bodyA_7 = -0.7361

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bodyA_8 = 0.1844

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bodyA_9 = 0.1056

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body--uriencoded--A_%7B10%7D = 0.6134

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body--uriencoded--A_%7B11%7D = 0.7210


See also

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Natural Science / Physics /Thermodynamics / Z-factor / Z-factor Correlations @model

Reference

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Dranchuk, P.M., and H. Abou-Kassem. "Calculation of Z Factors For Natural Gases Using Equations of State." J Can Pet Technol 14 (1975): doi.org/10.2118/75-03-03

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