Sum of oil surface flowrate $\begin{array}{l}q_O\end{array}$ and water surface flowrate $\begin{array}{l}q_W\end{array}$ : $\begin{array}{l}q_L = q_O + q_W\end{array}$

Symbol	Metric unit	Oilfield unit
$\begin{array}{l}q_L\end{array}$	cmd	bpd

(1)	$\begin{array}{l}\displaystyle q_L = q_O + q_W = \frac{q_t}{B_w Y_w +[ (B_o - R_s B_g] + B_g (GOR-R_s)] (1-Y_w)}\end{array}$

Derivation

q_t = B_w q_W + B_o q_O + B_g (q_G - R_s q_O)

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See Also