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LaTeX Math Block | ||||
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{\rm Sal} = \frac{m\mbox{mass}_{\mbox{salt}}}{m_\mbox{mass}_{\mbox{pure \ fluid/soil}}} |
Symbol | Dimension | SI units | Oil metric units | Oil field units | Additional |
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Sal | – | ‰ | wt% = 0.01 frac = 0.1 ‰ = 100 ppm [1] g/L = 10-3 frac = 10-5 wt% = 1 g/kg = 1 ‰ = 103 mg/L = 103 ppm |
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[1],[2]: In engineering practice, the Salinity is often measured in [ g/L ] and [ mg/L ] but as equivalent of ppk and ppm correspondingly.
But this is a misnomer as these units have a physical meaning of density while the standard Salinity measure is a dimensionless quantity and frac, wt%, ppk and ppm should be used instead.
The equalities [1] and [2] take the true meaning only when non-saline fluid has a density of 1 kg/L which is close to the distilled water density at Standard Conditions (0.9991 kg/L).
See Also
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Petroleum Industry / Upstream / Subsurface E&P Disciplines / Fluid (PVT) Analysis
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