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2.4.7 Calculate the volume of interconnected pores in the rock

sampleV , the bulk volume of the rock sample V by means
int. pores b.r.s.
of equations (2.3) − (2.4) and the effective porosity factor of rock

m by means of equation (2.2).
ef.p.
2.4.8 Put the data of experiments and calculations for determining

the effective porosity factor of the rock sample m ef.p. into table 2.1

and draw the conclusion.

Table 2.1 – The data of experiments and calculations for
determining the effective porosity factor of the rock sample

No Index Designation Unit of Results of
measure- experiments
ment

1 2 3 4 5
1 The weight of dry rock G 1 kg

sample in air
2 The weight of the rock G kg
2
sample saturated with

kerosene in kerosene
3 The weight of the rock G kg
3
sample saturated with

kerosene in air
3
4 Kerosene density  kg/m
k
3
5 The volume of inter- V m
connected pores in the int. p.

rock sample
3
6 The bulk volume of V m
the rock sample b.r.s.

7 Effective porosity factor m ef.p. fractions
(%)

2.5 Checking questions

2.5.1 What is the effective porosity factor?

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