The volumetric method of reservoir is a very simple and yet elegant mathematical tool that gives a fairly accurate idea about the volume of hydrocarbons in the reservoir. Its accuracy depends upon a correct estimation of certain physical properties of the reservoir viz. Porosity , Reservoir thickness .
Where , V is the volume of the hydrocarbon in reservoir
A is the area over which the reservoir is spread
h is the thickness of the reservoir
phi is the reservoir porosity
Swc is the connate water saturation
Bo is the formation volume factor
In the simplest mathematical terms , the volume is determined as
Where , V is the volume of the hydrocarbon in reservoir
A is the area over which the reservoir is spread
h is the thickness of the reservoir
phi is the reservoir porosity
Swc is the connate water saturation
Bo is the formation volume factor