Water salinity from density equation

Handy equation to get the formation water (brine) salinity from the density.

Water salinity from density equation ^[1]

Math and Physics

C_{mg/l} = 10e7 (SG_w - 1) / 7.8216

C_{mg/l}

= water salinity / solids concentration, mg/l

SG_w

= water specific gravity, dimensionless

↑ McCain, W.D. Jr. (1990). Properties of Petroleum Fluids (2 ed.). Oklahoma: PennWell Corp. ISBN 978-0878143351.