A device and method for regulating fluid flow in a well

Details A device and method for regulating fluid flow in a well A device and method for regulating fluid flow in a well

E - Fixed Constructions

21

B

E21B 34/10 (2006.01) E21B 43/12 (2006.01) F15B 11/16 (2006.01)

Patent

CA 2334115

A device for mutually independent control of regulating devices (1-6) for controlling fluid flow between a hydrocarbon reservoir (50) and a well (51) comprises a flow controller (54) and a hydraulic actuator (56). The actuator (56) is flow-relatedly arranged in series with at least two associated control valves (20-25) in a path (18, 19) between two hydraulic pipes (11, 14). The control valves (20, 25) are controlled to open for the flow of hydraulic liquid to the actuator (56) by the pressure in the two hydraulic pipes (11, 14), and the combination of two hydraulic pipes (11, 14) which are connected to an actuator (56) is different for independently controllable regulating devices (1-6).

L'invention concerne un dispositif de commande mutuellement indépendante de dispositifs (1-6) de régulation servant à réguler un débit de fluide entre un réservoir (50) d'hydrocarbure et un puits (51), qui comporte un organe (54) de commande de débit et un organe d'actionnement (56) hydraulique. L'organe (56) d'actionnement est aménagé en série par rapport à l'écoulement, et comporte au moins deux vannes (20-25) de commande associées sur un trajet (18, 19) situé entre deux tuyaux (11, 14) hydrauliques. Les vannes (20, 25) de commande sont commandées de façon à s'ouvrir pour permettre au liquide hydraulique de s'écouler vers l'organe (56) d'actionnement grâce à la pression présente dans les deux tuyaux (11, 14) hydrauliques, et la combinaison de deux tuyaux (11, 14) hydrauliques connectés à un organe (56) d'actionnement est différente pour obtenir des dispositifs (1-6) de régulation commandés de manière indépendante.

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