Displacement Theory Quiz
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Questions and Answers

What is the formula for calculating the capillary number (Nc)?

Capillary number (Nc) = Viscous forces/capillary forces = µv/σ

What is the typical range of Nc for waterflooding?

Nc 10-7 to 10-6

What are the factors that contribute to viscous forces?

Viscous forces arise due to internal friction among molecules of moving fluid and external friction with solid and other phases

What is the effect of wettability on relative permeability?

<p>Wettability affects the relative permeability functions and can impact the flow of fluids</p> Signup and view all the answers

What will reduce the sor (residual oil saturation) in a reservoir?

<p>To reduce sor, ultra lower interfacial tension by surfactants, miscible gas injection, and/or very high pressure gradient by viscous polymer are required</p> Signup and view all the answers

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