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c(T,p) = \frac{1}{\rho} \left( \frac{\partial \rho}{\partial p} \right)_T = - \frac{1}{V_m} \left( \frac{\partial V_m}{\partial p} \right)_T |
There is no universal ffullfull-range analytical model for Fluid Compressibility but there is a good number of approximations which can be effectively used in engineering practice.
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The multi-phase fluid compressibility is a linear sum of compressibilities of its phases (see multi-phase fluid compressibility @ model).
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Fluid Compressibility of popular petroleum fluids at SPE Standard Conditions (STP):
| Fluid | Typical Range, GPa-1 |
|---|---|
| Natural Gas | 10,000 |
| Gas Condensate | 100 |
| Oil | 1 – 10 |
| Water | 0.44 – 0.51 GPa-1 |
See also
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Physics / Mechanics / Continuum mechanics / Fluid Mechanics / Fluid Statics
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[ Incompressible fluid ] [ Slightly Compressible Fluid ] [ Strongly Compressible Fluid ] [ Ideal Gas ]
[ Water compressibility (cw) ] [Oil compressibility (co)] [Gas compressibility (cg)]