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Displacement efficiency defines the fraction of the initial pore-saturating fluid displaced in a the piston sweep by invaded fluid:
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| E_D = 1- \frac{V_{HCFLUID, \ LEFT}}{INITITAL} - V_{HCFLUID, \ INITITALINVADED}} = \frac{1-s_{wi}-s_{orw}}{1-s_{wi}} |
where – inititial water in oil pay, – residual oil to water sweep.
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Water-Oil Displacement Efficiency (EDow)
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| Water→Oil Displacement Efficiency = EDow |
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| Water→Oil Displacement Efficiency = EDow |
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Gas-Oil Displacement Efficiency (EDog)
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| Gas→Oil Displacement Efficiency = EDog |
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| Gas→Oil Displacement Efficiency = EDog |
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See also
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Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petrophysics
[ Permeability ] [ Absolute permeability ] [ Relative permeability ]
