 |
| |||
| casing wall | |||
| стенка обсадной колонны: 25 phrases in 8 subjects |
| Drilling | 6 |
| Karachaganak | 1 |
| Oil / petroleum | 8 |
| Oil and gas | 2 |
| Oil and gas technology | 3 |
| Oilfields | 2 |
| Sakhalin | 2 |
| Sakhalin R | 1 |
|
| |||
| casing wall | |||
| стенка обсадной колонны: 25 phrases in 8 subjects |
| Drilling | 6 |
| Karachaganak | 1 |
| Oil / petroleum | 8 |
| Oil and gas | 2 |
| Oil and gas technology | 3 |
| Oilfields | 2 |
| Sakhalin | 2 |
| Sakhalin R | 1 |