Method and apparatus to hydraulically bypass a well tool

Details Method and apparatus to hydraulically bypass a well tool Method and apparatus to hydraulically bypass a well tool

E - Fixed Constructions

21

B

E21B 23/01 (2006.01) E21B 43/16 (2006.01)

Patent

CA 2633226

Apparatuses and methods to communicate with a zone below a subsurface safety valve (104, 204, 404) independent of the position of a closure member (106) of the safety valve are disclosed. The apparatuses and methods include deploying a subsurface safety valve (104, 204, 404) to a profile located within a string of production tubing. The subsurface safety valve (104, 204, 404) is in communication with a surface station through an injection conduit (150,152; 250,252; 450;452) and includes a bypass pathway (144, 244, 444) to inject various fluids to a zone below. A redundant control to actuate subsurface safety valve (104, 204, 404) can include a three-way valve (180, 280) or three-way manifold 480 connecting the injection conduit (150,152; 250,252; 452) or the hydraulic ports (140,142; 240,242; 442') to the subsurface safety valve (104, 204, 404).

Appareils et procédés permettant de communiquer avec une zone située sous une vanne de sûreté souterraine (104, 204, 404) indépendamment de la position d'un mécanisme de fermeture (106) de celle-ci. Les appareils et procédés consistent à déployer une vanne de sûreté souterraine (104, 204, 404) à l'intérieur d'un train de tubes de production. La vanne de sûreté souterraine (104, 204, 404) communique avec une station de surface par une conduite d'injection (150,152 ; 250,252 ; 450 ; 452) et comporte un passage de dérivation (144, 244, 444) permettant d'injecter divers fluides dans une zone sous-jacente. Une commande redondante servant à actionner la vanne de sûreté souterraine (104, 204, 404) peut comprendre une vanne à trois voies (180, 280) ou un collecteur à trois voies (480) raccordant la conduite d'injection (150,152 ; 250,252 ; 452) ou les orifices hydrauliques (140,142 ; 240,242 ; 442') à la vanne de sûreté souterraine (104, 204, 404).

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