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p(z) = p_0 \cdot \exp \left[ - \frac{M }{R \, T} \cdot (z-z_0) \right]

where

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Gas pressure at Logging reference point 

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bodyz_0

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bodyz_0

Logging reference point (usually at surface)

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bodyM

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Standard gravity constant

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bodyT



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bodyR

Gas constant


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titleDerivation


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Following Ideal Gas Equation of State:

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\frac{\rho_0}{p_0} =\frac{M}{R \, T}

 

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body\qed



See also

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Physics / Mechanics / Continuum mechanics / Fluid Mechanics / Fluid Statics

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