Page 148 - Reservoir Formation Damage
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130 Reservoir Formation Damage
The relationship between volume fraction and volume ratio is given by:
o, = n ;
(7-7)
Frequently, conversion between the various ways of expressing the
species content are required for various purposes. Some of these are
presented in the following.
The conversion between mole and mass fractions are given by:
(7-8)
and
(7-9)
The mass concentration of species / in a mixture can be expressed per
unit volume of another species k as:
_ mass of i
= w
c ik (7-10)
volume of k
The mass concentration of species / in a mixture can be expressed in
terms of its mass fraction as:
(7-11)
The volume fraction of species / in a mixture can also be expressed in
terms of its mass fraction as:
(7-12)
The volume fraction of species i can be expressed in terms of the volume
ratio as:
