Blow out preventer with telescopic conductor tube assembly

Details Blow out preventer with telescopic conductor tube assembly Blow out preventer with telescopic conductor tube assembly

E - Fixed Constructions

21

B

E21B 33/06 (2006.01)

Patent

CA 2506828

A blow out preventer with a telescopic conductor tube assembly having a first conductor tube connected to the body and a second conductor tube connected to a closure providing access to the hydraulic rams. In a first operating mode, a closure lock prevents telescopic movement of the conductor tube assembly and by selecting to supply hydraulic fluid to either a first flow path or a second flow path the hydraulic rams can be moved to either an open or a closed position. In the second operating mode, by selecting to supply hydraulic fluid to either the first flow path or the second flow path telescopic movement of the conductor tube assembly can be effected to either open or close the closure.

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