A hoisting system is disclosed including a moveable sheave coupled to a well support structure, the moveable sheave slideable along the well support structure and relative to a fixed sheave to laterally move a hoisting line relative to a well center. The hoisting system may include a second moveable sheave such that a second hoisting line may be laterally moved to various locations including a second well center or the same well center as the first hoisting line.
MOVEABLE HOISTING SYSTEM
BEWEGLICHES HUBSYSTEM
SYSTÈME DE LEVAGE MOBILE
07.08.2019
Patent
Elektronische Ressource
Englisch
Engineering Index Backfile | 1908
|A moveable traffic signal or moveable pedestrian signal system
Europäisches Patentamt | 2016
|