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GSU
0,1 – 0.6
mm
Especially durable granules GSU
Descriptions and a table of characteristics of KERWOOD® foamed ceramic microspheres
A foamed ceramic microsphere of particular durability. It was developed specifically for use in oil and gas production in wells of great depth and high pressure. This article has high strength characteristics with the size of granules from 0.1 — 0.6 mm.
- Available on request
| Index | Fraction, mm | ||
| 0.1 – 0.3 | 0.3 – 0.6 | 0.1 – 0.6 | |
| Article | GSU2 01-03/480 | GSU2 03-06/420 | GSU2 01-06/450 |
| Apparent density, kg / m3 | 550±50 | 480±40 | 520±60 |
| Volume (apparent) density of granules, kg / m3 |
1100±120 | 1000±60 | 1020±80 |
| Compression strength in the cylinder, MPa, not less than (GOST 9758-2012, cylinder diameter 150 mm) |
11 | 9 | 10 |
| Coefficient of thermal conductivity, W / (m·°K), not more than |
0.097 | 0.09 | 0.093 |
| Water absorption for 24 hours by weight, %, not more than |
4 | ||
| Resistance to silicate decay, %, not more than |
1 | ||
| Content of water-soluble sulphurous and sulphate compounds, %, not more than |
1 | ||
| Loss of mass during boiling, %, not more than |
5 | ||
| Humidity, %, not more than | 0.5 | ||
| Activity of natural radionuclides, Bq / kg, not more than |
370 | ||
Tests in accordance with the Russian State Standard (GOST 9758-2012), except for water absorption;
Determination of water absorption according to DIN 4226-3-2002;
Determination of activity of natural radionuclides according to the Russian State Standard (GOST 30108-94);
Coefficient of compaction is 1.3;
Apparent density is determined with free filling, in the unconsolidated state of the material.
