 |
| |||
| column stump | |||
| column bottom (Yeldar Azanbayev); tubing strings bottom (Yeldar Azanbayev) | |||
| нижняя часть колонны: 39 phrases in 12 subjects |
| Architecture | 1 |
| Chemistry | 1 |
| Construction | 3 |
| Drilling | 1 |
| Makarov | 1 |
| Mechanic engineering | 4 |
| Oil / petroleum | 14 |
| Oil and gas | 3 |
| Oil and gas technology | 4 |
| Oilfields | 5 |
| Sakhalin | 1 |
| Sakhalin R | 1 |