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| \rho(T, p) = \rho^{\circ} \cdot \frac{p}{Z(T, p)Z^{\circ} \, T^{\circ}}{p^{\circ}} \cdot \frac{Mp}{RZ(T, p) \, T} |
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| ZB(T, p) = B\frac{\rho^{\circ}}{\rho(T, p)} = \cdot \frac{p}{T{p^{\circ} }{Z^{\circ} \, T^{\circ}} \cdot \frac{M}{RZ(T, p) \, \rho_{ref}}T}{p} |
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where
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body | --uriencoded--()%5e%7B\circ%7D |
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means reference conditions, usually SPE Standard Conditions (STP).
Z-factor is related to fluid compressibility
as:...