In order to calculate HCPV (i.e. hydrocarbon pore volume) for the reservoir there has to be a reservoir model. This is a folder with reservoir horizons in a layer model and folders with petrophysical parameter grids.
The parameter grids are connected to the zone between two horizons and the zones in the layer model start with the first horizon. There are seven horizons and six zones; therefore the last horizon will have no petrophysical parameter grids associated. The parameter grids can be found in the folder 09_Petrophysical parameters.
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The petrophysical parameter grids in the volumetric model are random generated between 0.1 and 0.6 approximately. That corresponds to realistic value domains. In real cases the petrophysical parameter grids are gridded from well data, f.inst. using the gridding panel Simple points and lines gridding