STOIIP

STOIIP

STOIIP stands for stock tank oil initially in place. Equals to the volume of the reservoir oil at the surface conditions.

Equation

$STOIIP = /frac{HCVP}{B_o} = /frac{A * h * \phi * S_o}{B_o}$

where

$A$ = Area, m2

$B_o$ = Oil formation volume factor, m2

$h$ = Net pay, oil saturated thickness, m

$HCPV$ = Hydrocarbon pore volume, m3

$\phi$ = Porosity, fraction

$S_o$ = Oil saturation, fraction