Tool arrangement connected to a christmas tree and methods for installing and removing of a christmas tree
US9874076B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2015 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Mar 25, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/035
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention provides a multipurpose tool arrangement for riserless invention of a subsea well. The multipurpose tool (40) which is adapted to be connected at the lower end to a Christmas tree (50) which has a tubing hanger (52) and an annulus bore (60′) being defined through said tubing hanger (52). Said tool (40) comprises a tubular element (48) and a Christmas tree connector (41), said multipurpose tool (40) is adapted to receive a second tool (64), which is operated by a cable (49), said second tool (64) in turn being adapted to install a plug (70) in said tubing hanger annulus bore (60′), through said multipurpose tool (40), said arrangement also comprising a pressure control head (47) through which said cable (49) extend. The invention also provides a method for removal or installing of a Christmas tree.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.