STOIIP

STOIIP

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

Equation

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

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

$STOIIP$ = Stock tank oil initially in place, m3

See Also

• HCPV
• Pattern
• Block
• Bucket
• Mature Water Flood Analysis