Interventionless reservoir control systems

Details Interventionless reservoir control systems Interventionless reservoir control systems

E - Fixed Constructions

21

B

E21B 43/12 (2006.01)

Patent

CA 2547201

Systems and methods for positively closing off a section of wellbore and, thereby providing reservoir control. Systems and methods are described for selectively closing off a section of a wellbore to fluid communication. The wellbore completion section may then be reopened to fluid communication upon reconnection of the upper completion section to the lower completion section. Advantageously, the systems and methods of the present invention generally preclude fluid communication between the annulus of the upper completion section and the flowbore of the lower completion section until the lower completion section is closed off to fluid flow.

L'invention concerne des systèmes et des procédés de fermeture positive d'une section d'un puits de forage et, permettant d'assurer la commande du réservoir. Les systèmes et procédés servent à fermer de manière sélective une section d'un puits de forage à la communication d'une fluide. La section de complétion du puits de forage peut être réouverte à la communication de fluide après reconnexion de la section de complétion supérieure avec la section de complétion inférieure. Les systèmes et procédés de cette invention empêchent de manière générale la communication d'un fluide entre l'espace annulaire de la section de complétion supérieure et le trou d'écoulement de la section de complétion inférieure jusqu'à ce que celle-ci soit fermée ou fluide.

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