Geoscience Reference
In-Depth Information
Fig. 3.18
Example sandstone reservoir porosity distributions (
histograms
) and possible model distributions fitted to
the data: (
a
) approximately log-normal, (
b
) neither normal nor log-normal, (
c
) under-sampled
3.3.4 Handling
f
-k Distributions
and Cross Plots
cross-plots). Porosity represents the available
fluid volume and permeability represents the
ability of the fluid to flow. In petroleum engineer-
ing, porosity is the essential factor determining
fluids in place while permeability is the essential
factor
Plots of porosity (
) versus permeability (k)
are fundamental to the process of reservoir
modelling (loosely referred to as poro-perm
ϕ
controlling production and reserves.
