Page 13 - 5010

2.4.3 Saturate the rock sample with kerosene. The process of
vacuuming the rock sample has to take 15 – 20 minutes. But at first
switch on the installation for vacuuming IV-3 (ВУ-3). Vacuuming in
Boonzen’s flask must be controlled with vacuummeter 7.

Tishchenko’s capacity 9 serves as the indicator of air pumping.
Saturation of the rock sample with kerosene in vacuum must be
conducted until air bubbles stop going out. In 15 – 20 minutes switch

off the installation for vacuuming, open three-way cock 6 and connect
the installation with the atmosphere. Then take the rock sample out of
Boonzen’s flask and wipe it.

1 – the sample of the rock; 2 – piston; 3 – cylinder; 4 – rubber plug;

5 – Boonzen’s flask (flask for vacuuming); 6 – three-way cock;

7 – vacuummeter; 8 – tap; 9 – Tishchenko’s capacity.

Figure 2.1 – The installation for vacuuming IV-3 (ВУ-3)

2.4.4 Put the rock sample into the glass capacity with kerosene
(be sure that the rock sample is immersed in kerosene) and weigh it in

kerosene (G , g) using metallic or glass bridge (stand).
2
2.4.5 Take the rock sample out of glass capacity, wipe it by filter
paper and weigh it in air (G , g).
3
2.4.6 For calculations it is recommended to take kerosene density
3
within the range of 780 – 820 kg/m (use the average for calculating).

12