New model estimates water content in saturated natural gas

A new mathematical model estimates the water content in saturated natural gas, both sweet and sour, up to 10,000 psia and 460° F.For designing processing units and piping systems, one needs to estimate the water content in natural gas to prevent hydrate formation, corrosion, etc., and many investigators have introduced various estimation methods since Olds in 1942.1-27 Some methods are graphical and others rely on analytical equations, but each method has limits.The new model covers a wider gas composition and condition range.Average absolute error of calculated results from the new model is 2.5% for sweet gas and 3.1-5.5% for gas containing H2S and CO2 up to 30%. The error calculat...

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