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Volumetric flowrate of the fluid phase across all fluids across the well-reservoir contact.


In most popular practical case of a 
3-phase fluid model this will be:

Oil
LaTeX Math Inlinebody

LaTeX Math Block
anchorq_t
alignmentleft
q_t = q_o
Gas
 + q_g + q_w

Oil sandface flowrate:

LaTeX Math Inline
bodyq_

g

o

Water

Gas sandface flowrate

LaTeX Math Inline
bodyq_

w

g

Total

Water sandface flowrate

LaTeX Math Inline
bodyq_

t

w


In

...

this case the relation between the Sandface flowrates

LaTeX Math Inline
body--uriencoded--\%7B q_o, \, q_g, \, q_w \%7D
 and Surface Flowrates 
LaTeX Math Inline
body--uriencoded--\%7B q_O, \, q_G, \, q_W \%7D
 is given by Modified Black Oil fluid @model

LaTeX Math Block
anchorq
LaTeX Math Block
anchorq_o
alignmentleft
q_o = \frac{ B_o \cdot ( q_O - R_v \, q_G) }{1- R_v \, R_s}
LaTeX Math Block
anchorrho_o
alignmentleft
\rho_o = \frac{m_o}{q_o}= \frac{\rho_O + \rho_G \, R_s}{B_o}
LaTeX Math Blockanchorm
_o
alignmentleft
m
q_o = 
\rho
B_o \cdot (q_
o = \frac{\rho_
O 
+
- 
\rho
R_
G
v \, 
R_s}{B_o} \cdot
q_
o
G)
LaTeX Math Block
anchorq_g
alignmentleft
q_g = 
\frac{
B_g \cdot ( q_G - R_s \, q_O)
}{1- R_v \, R_s}
LaTeX Math Block
anchor
rho_galignmentleft
\rho_g = \frac{m_g}{
q_
g}= \frac{\rho_G + \rho_O \, R_v}{B_g}
LaTeX Math Block
anchorm_g
alignmentleft
m_g = \rho_g \cdot q_g = \frac{\rho_G + \rho_O \, R_v}{B_g} \cdot q_g 
LaTeX Math Blockanchorq_
w
alignmentleft
q_w = B
_w \cdot q_W LaTeX Math Block
anchorrho_w
alignmentleft
\rho_w =\frac{m_w}{q
_w
}=
 
\
frac{\rho_W}{B_w}
LaTeX Math Block
anchorm_w
alignmentleft
m_w = \rho_w \cdot q_w =   \frac{\rho_W}{B_w} \cdot q_w
LaTeX Math Block
anchorqt
alignmentleft
q_t = q_o + q_g + q_w
LaTeX Math Block
anchorqt2
alignmentleft
q_t = \frac{B_o - B_g \
, 
R_v}{1-R_v \, R_s} \cdot
q
_O +\frac{B_g - B_o \, R_v}{1-R_v \, R_s} \cdot q_G + B_w \cdot q_W LaTeX Math Block
anchorqt3
alignmentleft
q_t = \frac{B_o - B_g \, R_v}{(1-R_v \, R_s) \rho_O} \cdot \dot m_O +\frac{B
_
g - B_o \, R_v}{(1-R_v \, R_s) \, \rho_G} \cdot \dot m_G + \frac{B_w}{\rho_
W
} \cdot \dot m_W
LaTeX Math Block
anchorqt2
alignmentleft
\rho_t = (\dot m_O + \dot m_G + \dot m_G)/q_t

...

titleDerivation


Panel
borderColorwheat
bgColormintcream
borderWidth7

Derivation of the volatile oil sandface/surface flowrates relation

See Also

...

Petroleum Industry / Upstream / Subsurface E&P Disciplines / Well Testing (WT) / Flowrate Testing / Flowrate

...

Surface flowrates ] [ Oil surface flowrate ] [ Gas surface flowrate ] [ Water surface flowrate ] [ Total sandface flowrate ]

Volatile Oil Fluid @model ]