Dead oil viscosity	μ_od	cp	dead	$\begin{array}{l}\displaystyle \mu_{od}(T) =c_1 \cdot T^{c_2} \cdot \big[ \log_{10}(\gamma_{API}) \big]^X\end{array}$ , $\begin{array}{l}X = c_3 \cdot \log_{10} (T) + c_4\end{array}$ $\begin{array}{l}c_1 = 2.3511 \cdot 10^7, \ c_2 = -2.10255 \ c_3 = 4.59388, \ c_4 = - 22.82792\end{array}$

where

$\begin{array}{l}\mu_{ob}\end{array}$	cp	oil viscosity at bubble point pressure p_b
$\begin{array}{l}p\end{array}$	psia	Fluid pressure
$\begin{array}{l}p_b\end{array}$	psia	Bubble point pressure

References

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