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Flowrate of a specific fluid component(s) or pseudo-component(s) measured at SPE Standard Conditions (STP).


Whenever is used the fluid component / pseudo-component for which the surface flowrates is measured should be explicitly specified to avoid confusion, for example:

PropertySymbolMeaning
Oil production rate

LaTeX Math Inline
body--uriencoded--q%5e%7B\uparrow%7D_O

Excerpt Include
Oil production rate
Oil production rate
nopaneltrue

Gas production rate

LaTeX Math Inline
body--uriencoded--q%5e%7B\uparrow%7D_G

Excerpt Include
Gas production rate
Gas production rate
nopaneltrue

Water production rate

LaTeX Math Inline
body--uriencoded--q%5e%7B\uparrow%7D_W

Excerpt Include
Water production rate
Water production rate
nopaneltrue

Liquid production rate

LaTeX Math Inline
body--uriencoded--q%5e%7B\uparrow%7D_L

Excerpt Include
Liquid production rate
Liquid production rate
nopaneltrue

Water injection rate

LaTeX Math Inline
body--uriencoded--q%5e%7B\downarrow%7D_%7BWI%7D

Excerpt Include
Water injection rate
Water injection rate
nopaneltrue

Gas injection rate

LaTeX Math Inline
body--uriencoded--q%5e%7B\downarrow%7D_%7BGI%7D

Excerpt Include
Gas injection rate
Gas injection rate
nopaneltrue


The surface flowrates are also used to calculate the total sandface flowrate at downhole conditions.


In case of Volatile Oil Reservoir the connection with Sandface flowrates and mass flowrates will be:


LaTeX Math Block
anchorqO
alignmentleft
q_O =  \frac{q_o}{B_o} + \frac{R_v \, q_g}{B_g}



LaTeX Math Block
anchorqO1
alignmentleft
q_O = \frac{m_O}{\rho_O}



LaTeX Math Block
anchorqG
alignmentleft
q_G =\frac{q_g}{B_g} + \frac{R_s \, q_o}{B_o}



LaTeX Math Block
anchorqG1
alignmentleft
q_G = \frac{m_G}{\rho_G}



LaTeX Math Block
anchorqW
alignmentleft
q_W =  \frac{q_w}{B_w}



LaTeX Math Block
anchorqW1
alignmentleft
q_W = \frac{m_W}{\rho_W}



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titleDerivation


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Derivation of the volatile oil sandface/surface flowrates relation


See Also


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

Well & Reservoir Surveillance ]

Surface flowrates ] [ Oil surface flowrate ] [ Gas surface flowrate ] [ Water surface flowrate ] [ Liquid production rate ]

Sandface flowrates ] [ Oil sandface flowrate ] [ Gas sandface flowrate ] [ Water sandface flowrate ]  [ Total sandface flowrate ]