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Displacement Efficiency (ED)

Created by Arthur Aslanyan (Nafta College), last modified on Dec 19, 2018

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Displacement efficiency defines the fraction of the initial pore-saturating fluid displaced in a the piston sweep by invaded fluid

$\begin{array}{l}\displaystyle E_D = 1- \frac{V_{FLUID, \ INITITAL} - V_{FLUID, \ INVADED}}{V_{FLUID, \ INITITAL}}\end{array}$

Water-Oil Displacement (E_Dwo)

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Gas-Oil displacement efficiency (E_Dgo)

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See also

Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petrophysics

[ Permeability ] [ Absolute permeability ] [ Relative permeability ] [Relative permeability @model ]

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