System and vessel for supporting offshore fields

Details System and vessel for supporting offshore fields System and vessel for supporting offshore fields

E - Fixed Constructions

21

B

E21B 43/017 (2006.01) E21B 15/02 (2006.01) E21B 43/01 (2006.01)

Patent

CA 2563738

A system for supporting multiple-well-site, offshore, hydrocarbon-bearing fields, each well-site has one or more wells. In general, the system first comprises a floating vessel that is relocatable from a first subsea well-site to a second subsea well-site. The system also comprises two separate systems: (1) an operations control system for providing subsea well-site operations such as power and communications; and (2) an intervention system for conducting intervention services to an individual subsea well such as workover services and maintenance services. The operations system may provide control to wells and other subsea equipment at either the first well-site or the second well-site, regardless of the location of the floating vessel. The intervention system may provide workover and/or maintenance to subsea equipment or individual wells at the well-site at which it is located.

L'invention concerne un système permettant de supporter un emplacement à puits multiples et des champs marins supportant des hydrocarbures, chaque emplacement de forage comprenant un ou plusieurs puits. En général, le système comprend un bâtiment flottant pouvant être relocalisé à partir d'un premier emplacement de forage sous-marin vers un second emplacement de forage sous-marin. Le système comprend également deux systèmes distincts: (1) un système de commande des opérations de l'emplacement de forage sous-marin, telles que la puissance et les communications; et (2) un système d'intervention permettant d'effectuer des services d'intervention dans un puits sous-marin individuel, tels que des services de reconditionnement et d'entretien. Le système d'opérations permet de commander des puits et d'autre équipement sous-marin au niveau soit du premier emplacement de forage, soit du second emplacement de forage, indépendamment de l'emplacement du bâtiment flottant. Le système d'intervention permet de reconditionnement et/ou d'entretenir un équipement sous-marin ou des puits individuels au niveau de l'emplacement de forage au niveau duquel il est situé.

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