Depending on context may mean:

$\begin{array}{l}q^{\uparrow}_O\end{array}$	Oil production rate
$\begin{array}{l}q^{\uparrow}_G\end{array}$	Gas production rate
$\begin{array}{l}q^{\uparrow}_W\end{array}$	Water production rate
$\begin{array}{l}q^{\uparrow}_L\end{array}$	Liquid production rate
$\begin{array}{l}q^{\uparrow}_t\end{array}$	Total sandface flowrate in producing well

and sometimes denoted as $\begin{array}{l}q^{\uparrow}\end{array}$ .

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See Also