PETE311_06A_Class26_(Maggard)

# PETE311_06A_Class26_(Maggard) - Introduction to Effective...

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Introduction to Effective Permeability and Relative Permeability

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Absolute permeability: is the permeability of a porous medium saturated with a single fluid (e.g. S w =1) Absolute permeability can be calculated from the steady-state flow equation (1D, Linear Flow; Darcy Units): Review: Absolute Permeability L p A k q μ Δ =
Multiphase Flow in Reservoirs Commonly, reservoirs contain 2 or 3 fluids Water-oil systems Oil-gas systems Water-gas systems Three phase systems (water, oil, and gas) To evaluate multiphase systems, must consider the effective and relative permeability

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Effective permeability : is a measure of the conductance of a porous medium for one fluid phase when the medium is saturated with more than one fluid. • The porous medium can have a distinct and measurable conductance to each phase present in the medium • Effective permeabilities: (k o, k g, k w ) Effective Permeability Amyx, Bass, and Whiting, 1960; PETE 311 Notes
Oil Water Gas L A k q o o o o μ ΔΦ = L A k q w

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## This note was uploaded on 12/03/2009 for the course PETE 311 taught by Professor Staff during the Spring '08 term at Texas A&M.

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PETE311_06A_Class26_(Maggard) - Introduction to Effective...

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