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LaTeX Math Block
alignmentleft
\rho = \frac{m}{V}

where

LaTeX Math Inline
bodym

fluid mass

LaTeX Math Inline
bodyV

fluid volume


For the The total fluid density of multiphase fluid the total density is is given by following equation:

LaTeX Math Block
anchorrho_m
alignmentleft
\rho = \sum_\alpha s_\alpha \, \rho_\alpha

where

LaTeX Math Inline
body\rho_\alpha

 Density of 

LaTeX Math Inline
body\alpha
-phase

LaTeX Math Inline
bodys_\alpha

volumetric share of 

LaTeX Math Inline
body\alpha
-phase



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Density of popular petroleum fluids at SPE Standard Conditions (STP):

FluidNormal density Typical range (g/cc)
Natural Gas0.007 – 0.30
Gas Condensate0.200 – 0.40
Oil0.400 – 1.12
Water1.000 – 1.15

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