Lecture 3: Capillary Pressure

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  • Created by: alisha
  • Created on: 20-05-17 17:30
What is the klinkenberg effect?
velocity is found to be at a maximum at the centre of the tube, and zero at the wall due to viscous forces
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Critical Saturation
fluid remains immobie until its saturation exceeds a certain saturation, called critical saturation which above the fluid begins to move
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Residual Saturation
The portion of oil that remains in the reservoir after displacement
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Wettability
tendancy of preference of a fluid to spread on or adhere to a solid surface to the prescence of other immiscible fluids
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Name two types of wettability
homogenous or heterogenous
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Drainage
displacement of the wetting phase from the porous medium b a with a non wetting phase
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imbibition
wetting phase saturation increases and the non wetting phase saturation decreases
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Capillary pressure
pressure which exists at the interface between two immiscible fluids in the pores
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How do you calculate the capillary pressure?
(pressure of non wetting phase) - (pressure of wetting phase) pc = pnw - pw
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what is Leverett J- Function
capillary pressures obtained from small samples.
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Other cards in this set

Card 2

Front

Critical Saturation

Back

fluid remains immobie until its saturation exceeds a certain saturation, called critical saturation which above the fluid begins to move

Card 3

Front

Residual Saturation

Back

Preview of the front of card 3

Card 4

Front

Wettability

Back

Preview of the front of card 4

Card 5

Front

Name two types of wettability

Back

Preview of the front of card 5
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