 |
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| appraisal well drilling | |||
| appraisal drilling | |||
| drilling for mine planning projects (Leonid Dzhepko) | |||
| оценочное бурение: 10 phrases, 7 sujets |
| Champs de pétrole | 1 |
| Extraction d'extr. | 2 |
| Pétrole / pétrole | 2 |
| Pétrole et gaz | 2 |
| Sakhaline S | 1 |
| Technologie | 1 |
| Technologie pétrolière et gazière | 1 |