| |||
| bottom-hole assembly | |||
|
оборудование низа колонны : 8 phrases in 5 subjects |
| Drilling | 1 |
| Oil / petroleum | 2 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Technology | 3 |
| |||
| bottom-hole assembly | |||
|
оборудование низа колонны : 8 phrases in 5 subjects |
| Drilling | 1 |
| Oil / petroleum | 2 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Technology | 3 |