| 摘要 |
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. |
