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Permeability distribution polygon - graphical dependency
that displays statistical correlation between researched parameter k
(permeability) and the frequency of occurrence of this parameter,
while points by frequency connected by smooth curve. The typical
polygon is displayed on Fig. 5.1. Every graph has a special peak-
point k mod that called modal value or mode.
Modal value - the value of permeability that occurs the
most often.
Figure 5.1 - Permeability distribution polygon
.
There are great number of types of polygons, a few
examples displayed on Fig. 5.2. The most homogeneous formation
would have the graph similar to graph number 1, because it has the
smallest range of values. The most heterogeneous formation would
have graphic similar to graph number 4, because it has the widest
range of values.
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