| 摘要 |
<p>A method and apparatus for supply of liquids for scale treatment and killing to a subsea well (1), where the subsea well (1) is provided with a tree (10) which has a swab valve (29) and a coupling for a tree cap (38), and where the method comprises : - arranging an upgrading module (32) on the tree (10) after the tree cap (30) has been removed, the upgrading module (32) comprises an electric control unit (44) and a tree cap (38) which via an intermediate conduit (40) is coupled to a top valve (42) at the upper portion of the upgrading module (32), - coupling a coupling column (66) comprising at least two column valves (70) and a quick-releasable coupling (74) to the top valve (42), the coupling column (66) communicates with a vessel via a hose connection (68); - coupling the control unit (44) to the vessel via a signal wire (76) running within or close to the hose connection (68), thereafter the tree (10) and the upgrading module (32) is controlled via the signal wire (76); - opening the swab valve (29), the top valve (42) and column valves (70); and - pumping liquid from the vessel via the hose connection (68), coupling column (66) and upgrading module (32) down into the subsea well (1).</p> |
