 5000 m Drilling System (DC drive) |
2016-02-24 |
| 4000 m drilling system (AC variable frequency electric drive |
2016-02-24 |
| 3000 m-drilling workover rigs (AC variable frequency electri |
2016-02-24 |
| HXJ158 ocean workover rig |
2016-02-24 |
| 3000 m deep water survey vessel and drilling sampling system |
2016-02-24 |
| Rig electricity network transformation |
2016-02-24 |
| Mining oil and gas wellhead |
2016-02-24 |
| Integrated drilling and completion of oil casing head |
2016-02-24 |
| Integral oil (gas) tree |
2016-02-24 |
| Oil with ground safety valve (gas) wellhead |
2016-02-24 |
