Offshore drilling rig and a method of operating the same
US10323467B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2014 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Dec 28, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/001
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An offshore drilling rig comprising a drill deck, at least one primary well center and a diverter system arranged below the primary well center, a drilling support structure extending upwardly from the drill deck and above the primary well center and the other work center and a first and a second hoisting system supported by the drilling support structure and being adapted for raising or lowering a first and a second load carrier, respectively, and where the offshore drilling rig comprises a positioning system adapted for selectively positioning at least the first load carrier in at least a first or a second horizontal position different from the first horizontal position, where the first load carrier in the first horizontal position is positioned above the primary well center, and in the second horizontal position is positioned above the other work center.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.