Undersaturated Water Isothermal Compressibility Coefficient (Cw,us)

The compressibility (also known as the coefficient of compressibility or isothermal compressibility is a measure of the relative volume change of a fluid or solid as a response to the application of pressure.

The compressibility of water is a function of pressure and temperature and it is a key factor in transient flows.

The Properties of Petroleum Fluids, McCain

Correlations

  • 1-McCain
  • 2-Dodson and Standing
  • 3-Meehan

Input Parameters

NameInput Value - UnitConverted ValueValidity CheckLink to Calculation Page
Temperature

°f

Pressure

psi

Salinity (NaCl equivalent) Water salinity in parts per million of mass (ppmm)

ppm

CALCULATE

Results

CorrelationCalculated ValueWarningsRemarks
1-McCain1/psiShould not be used outside of these ranges: For temperature range from 209.3 to 270 F For pressures above 1000 psi
2-Dodson and Standing1/psiFor temperatures less than 209.3 F
3-Meehan1/psi