Page tree

Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

Multi-phase fluid model based on three pseudo-components  

LaTeX Math Inline
bodyC = \{ W, O, G \}
:

LaTeX Math Inline
bodyW

...

water pseudo-component, which may include minerals

...

 (assuming formation water and injection water composition is the same)

LaTeX Math Inline
bodyO

...

...

oil pseudo-component 

LaTeX Math Inline
bodyG

...

...


existing in three possible phases 

LaTeX Math Inline
body\alpha = \{ w, o, g \}
:

LaTeX Math Inline
bodyw

...

water phase, consisting of 

...

...

...

gas pseudo-component

LaTeX Math Inline
bodyo

...

oil phase, consisting of dead

...

oil pseudo-component and dissolved dry

...

...

water

LaTeX Math Inline
bodyg

...

gas phase, consisting of dry

...

gas pseudo-component and vaporized dead

...



The phase volume balance equations is:

LaTeX Math Block
anchor1
alignmentleft
s_w + s_o+s_g =1

where

LaTeX Math Inline
bodys_w = \frac{V_w}{V}

share of total fluid volume

LaTeX Math Inline
bodyV
occupied by water phase
LaTeX Math Inline
bodyV_w

LaTeX Math Inline
bodys_o = \frac{V_o}{V}

share of total fluid volume

LaTeX Math Inline
bodyV
occupied by oil phase
LaTeX Math Inline
bodyV_o

LaTeX Math Inline
bodys_g = \frac{V_g}{V}

share of total fluid volume

LaTeX Math Inline
bodyV
occupied by gas phase
LaTeX Math Inline
bodyV_g


The accountable cross-phase exchanges are illustrated in the table below:


LaTeX Math Inline
bodyw

LaTeX Math Inline
bodyo

LaTeX Math Inline
bodyg

LaTeX Math Inline
bodyW

xxx

LaTeX Math Inline
bodyO

xxx

LaTeX Math Inline
bodyG

xxx

...