 |
| |||
| double-walled tubing string (Yeldar Azanbayev) | |||
| dual-tube drill string (inplus) | |||
| колонна из двойных бурильных труб: 3 phrases in 2 subjects |
| Drilling | 1 |
| Oil / petroleum | 2 |
|
| |||
| double-walled tubing string (Yeldar Azanbayev) | |||
| dual-tube drill string (inplus) | |||
| колонна из двойных бурильных труб: 3 phrases in 2 subjects |
| Drilling | 1 |
| Oil / petroleum | 2 |