Method of drilling and operating a subsea well
US7073593B2 · kind B2 · utility
25Cited by
29References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2002 |
| Grant date | Jul 11, 2006 |
| Priority date | — |
| Expiry date | Feb 23, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/01
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of preparing and operating a subsea well (23), comprising the steps of: locating a drill-through subsea tree (24) on a subsea wellhead; sealingly connecting a high pressure drilling riser (22) between the tree and a drilling platform at the sea surface; mounting a blow out preventer (16) at the top of the riser (22); drilling the well through the drilling riser and the subsea tree; and establishing a production connection between the tree (24) and a production collection facility at the sea surface through a production riser (52) which is separate from the drilling riser (22).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.