A petroleum well intervention winch system includes a high pressure confining housing for a drum for a rope to a tool string. The pressure confining housing has a connector with an aperture for the rope to a top of a tool string gate chamber on vertical bore BOP valves on a wellhead on the petroleum well. The rope runs through the aperture via a capstan to the drum. The capstan is driven by a first motor through a first high pressure proof magnetic coupling across a wall of the housing. The drum is driven by a second motor through a second high pressure proof magnetic coupling across the wall of the housing. The capstan is subject to a load tension from the rope and is provided with a hold tension on the rope from the drum. The second motor exerts a constant hold tension on the rope via the drum.
PETROLEUM WELL INTERVENTION WINCH SYSTEM
WINDENSYSTEM FÜR ERDÖLBOHRLOCHOPERATIONEN
SYSTÈME DE TREUIL D'INTERVENTION DANS UN PUITS DE PÉTROLE
09.03.2016
Patent
Elektronische Ressource
Englisch
Petroleum drilling machine winch fault edge calculation system
Europäisches Patentamt | 2021
|