 |
| bottom pressure: 165 phrases in 21 subjects |
| Automated equipment | 1 |
| Caspian | 1 |
| Drilling | 9 |
| Energy industry | 1 |
| Geology | 3 |
| Hydrology | 1 |
| Mathematics | 2 |
| Military | 1 |
| Mining | 6 |
| Navigation | 1 |
| Oil / petroleum | 29 |
| Oil and gas | 47 |
| Oil and gas technology | 12 |
| Oilfields | 26 |
| Production | 2 |
| Sakhalin | 7 |
| Sakhalin R | 2 |
| Technology | 11 |
| Tengiz | 1 |
| Transport | 1 |
| Well control | 1 |
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