Well valve

Details Well valve Well valve

E - Fixed Constructions

21

B

166/41

E21B 23/06 (2006.01) E21B 33/129 (2006.01) E21B 33/14 (2006.01) E21B 43/12 (2006.01)

Patent

CA 1153693

ABSTRACT OF THE DISCLOSURE Disclosed are apparatus and method of closing a conduit against fluid flow in at least one longitudinal sense, and selectively disengaging and reengaging the closure mechanism without removing the closure mechanism from the conduit. In a particular embodiment, a valve assembly may be selectively anchored and sealed to a well packer, or disengaged therefrom. The valve assembly is manipulated by an operating tool to which the valve assembly is anchored in the well when the valve assembly is disengaged from the packer.

372367

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