 |
| drilling bit: 713 phrases in 17 subjects |
| Automated equipment | 1 |
| Caspian | 1 |
| Construction | 8 |
| Drilling | 11 |
| General | 1 |
| Geology | 2 |
| Jargon | 1 |
| Makarov | 1 |
| Mining | 2 |
| Oil / petroleum | 309 |
| Oil and gas | 80 |
| Oil and gas technology | 81 |
| Oilfields | 172 |
| Production | 3 |
| Technology | 36 |
| Tengiz | 1 |
| Transport | 3 |