Separately powered tube shearing mechanism for a gate valve

Details Separately powered tube shearing mechanism for a gate valve Separately powered tube shearing mechanism for a gate valve

E - Fixed Constructions

21

B

E21B 29/08 (2006.01)

Patent

CA 2182825

The present invention provides a system for shearing tubing disposed in the flow passage of a gate valve. The system includes a guillotine reciprocally movable transverse to the flow passage. A pressure source communicates with an actuating surface of the guillotine, and a separate actuator signals the pressure source to exert sufficient pressure upon the actuating surface to reciprocate the guillotine, forcing an opposed shearing surface of the guillotine to flow into the flow passage and shear the tubing. In a preferred embodiment, the pressure source is an explosive charge.

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