Subsea Xmas tree assembly and associated method
US9353592B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 15, 2013 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Nov 15, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/043
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Subsea Xmas tree assembly (5, 505) having a Xmas tree main bore (7) and a Xmas tree annulus bore (9). The main bore (7) aligns with a tubing hanger main bore (16) and the Xmas tree annulus bore (9) communicates with a tubing hanger annulus bore (17), when the Xmas tree assembly (5, 505) is installed above a tubing hanger (3) of a subsea well. The subsea Xmas tree assembly (5, 505) comprises a plug tool (100) adapted to install and to retrieve a plug (200) into and out of the tubing hanger annulus bore (17) when the Xmas tree assembly (5, 505) is installed above the tubing hanger (3). The assembly has a tool accommodation compartment (118, 618) within which the plug tool (100) is arranged. An associated method is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.