Well cementing using a sleeve shifter actuated valve

Details Well cementing using a sleeve shifter actuated valve Well cementing using a sleeve shifter actuated valve

E - Fixed Constructions

21

B

E21B 33/14 (2006.01) E21B 34/14 (2006.01)

Patent

CA 2662467

A valve system for cementing including a valve and a sleeve shifter. The valve may have a moveable sleeve with openings and a housing situated about the moveable sleeve and having flow passages. The sleeve shifter may be configured to actuate the valve by moving the sleeve. The valve may be configured to be opened and/or closed multiple times. The valve may be used in reverse cementing and/or squeeze jobs.

La présente porte sur un système de soupape permettant la cimentation et comprenant une soupape et un dispositif de changement de vitesse de manchon. La soupape peut comprendre un manchon mobile avec des ouvertures et un logement situé autour du manchon mobile et comprenant des passages d'écoulement. Le dispositif de changement de vitesse de manchon peut être configuré pour activer la soupape en déplaçant le manchon. La soupape peut être configurée pour être ouverte et/ou fermée plusieurs fois. La soupape peut être utilisée dans des tâches de cimentation inverse et/ou de cimentation sous pression.

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