Integrated drilling deck and bop handling
US8079426B2 · kind B2 · utility
10Cited by
33References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 20, 2009 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | Apr 20, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for handling a blow-out-preventer on a drilling platform and a drilling platform having a lower pontoon structure; a plurality of columns extending upwards from the lower pontoon structure; an upper deck structure connecting the upper deck structure connecting the upper portions of the columns to each other; a detachable rotary table assembly arranged in a rotary table opening in the upper deck structure; a derrick provided with a lifting arrangement and being arranged on the upper deck structure above the rotary table opening; and a detachable rotary table assembly a spider and a blow-out-preventer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.