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Table 1.1 – The data of experiments and calculations for determining
the imaginary (apparent) density of the rock and the absolute porosity
factor of the rock sample

No Index Designation Results of
experiments
1 2 3 4

1 The weight of the sample of the G
1

rock in air, kg.
2 The weight of the rock sample G

2
covered with paraffin in air, kg.
3 The weight of the rock sample G
3
covered with paraffin in water, kg.

4 The weight of water displaced by G = G – G
w.
2
3
the rock covered with paraffin, kg
O
5 The density of water under 20 C, 

w.
3
kg/m
6 The volume of the rock sample V r.s.рar. = G /
w.
3
covered with paraffin, m ρ
w.
3
7 The density of paraffin, kg/m  par.

8 The weight of paraffin shell, kg G par. = G – G
1
2
3
9 The volume of paraffin shell, m V par. = G /
par.
 par.
10 The volume of the rock sample V = V r.s.рar.
–
о
3
without paraffin, m V
par.
11 The imaginary (apparent) density   G 1
3
of the rock sample  , kg / m r.s. V о

r.s.
12 The density of grains forming 
gr.
3
the rock  , kg / m

gr.
13 The absolute porosity factor of the  r.s
m ab.p.  1(   )
rock sample m ab.p. , %.  gr.
100.

1.6 References
/1,2,3,4,6,7,18/

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