Water Density (ρw)

All formation waters contain dissolved solids, primarily sodium chloride. Generally, oilfield waters contain much higher concentrations of solids than seawater does.

Formation waters have been reported with total solid concentrations ranging from as little as 200 ppm to saturation, which is approximately 300000 ppm.

The Properties of Petroleum Fluids, McCain


  • 1-McCain

Input Parameters

NameInput Value - UnitConverted ValueValidity CheckLink to Calculation Page
Salinity (NaCl equivalent) Water salinity in parts per million of mass (ppmm)




CorrelationCalculated ValueWarningsRemarks
1-McCainlb/ft3Water density in standard condition