 |
| |||
| stage development | |||
| раздельная эксплуатация горизонтов: 9 phrases in 4 subjects |
| Drilling | 2 |
| Oil / petroleum | 4 |
| Oil and gas | 2 |
| Oil and gas technology | 1 |
|
| |||
| stage development | |||
| раздельная эксплуатация горизонтов: 9 phrases in 4 subjects |
| Drilling | 2 |
| Oil / petroleum | 4 |
| Oil and gas | 2 |
| Oil and gas technology | 1 |