Control and supply system
US8212378B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2009 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Aug 14, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In accordance with at least some embodiments, a maritime well system includes a sea-surface control unit. The maritime well system also includes a sea-bed control unit coupled to the sea-surface control unit by a sub-sea cable configured to carry a direct current (DC) voltage output from the sea-surface control unit at least 30 kilometers to the sea-bed control unit. The maritime well system also includes a sub-sea tree coupled to the sea-bed control unit via a connecting line configured to carry a converted voltage output from the sea-bed control unit to the sub-sea tree. In accordance with at least some embodiments, the cross-sectional area of the sub-sea cable is designed to carry a predetermined amount of power to the sea-bed control unit as DC power and is at least 10 times smaller than a cross-sectional area needed for carrying the predetermined amount of power to the sea-bed control unit as alternating current (AC) power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.