System for retrieving a tubular element from a well
US7314088B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2002 |
| Grant date | Jan 1, 2008 |
| Priority date | — |
| Expiry date | Sep 20, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B29/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system is disclosed for retrieving a tubular element extending into a subsea well provided with a wellhead, the tubular element being provided with a hanger suspending the tubular element at the wellhead, the hanger having a larger outer diameter than the tubular element. The system comprises a conduit assembly having a passage providing fluid communication between the wellhead and an offshore platform located above the well, the conduit assembly having at least an upper part of internal diameter allowing the tubular element to pass therethrough. The system further includes disconnection means for disconnecting the hanger from the tubular element, and retrieval means for retrieving the tubular element through the conduit assembly to the offshore platform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.