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Gas Z Compressibilty Factor

Dranchuk-Abou-Kassem (1975)
N.B. The Dranchuk-Abou-Kassem (DAK) (1975) correlation for the gas z compressibility (deviation) factor is used along with the Sutton (2007) correlation for the gas pseudo-critical properties and the Wichert-Aziz (1972) correlation for the non-hydrocarbons correction.

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Gas Z Compressibility Factor
Gas Formation Volume Factor

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