Full bore sampler valve apparatus

Details Full bore sampler valve apparatus Full bore sampler valve apparatus

E - Fixed Constructions

21

B

166/42

E21B 23/06 (2006.01) E21B 34/06 (2006.01) E21B 34/10 (2006.01) E21B 49/00 (2006.01) E21B 49/08 (2006.01) E21B 34/00 (2006.01)

Patent

CA 1203472

ABSTRACT OF THE DISCLOSURE In accordance with an illustrative embodiment of the present invention, a full-bore sampler and safety valve apparatus includes a housing having a hydraulically operable mandrel assembly slidably arranged therein, axially spaced, normally open ball valve elements mounted by trunnions on said mandrel assembly for rotation from positions simul- taneously opening a flow passage through said mandrel assembly in one longitudinal position of said mandrel assembly to positions simultaneously closing said flow passage in another longitudinal position of said mandrel assembly, a first actuator member fixed with respect to said housing for applying closing torque to one ball valve as said mandrel assembly is shifted toward said other position, and a second actuator member movable relative to said housing and said mandrel assembly and operable in response to rotation of said one ball valve for applying closing torque to the other of said ball valves.

419208

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