Electro-hydraulic surface controlled subsurface safety valve...

Details Electro-hydraulic surface controlled subsurface safety valve... Electro-hydraulic surface controlled subsurface safety valve...

E - Fixed Constructions

21

B

E21B 34/06 (2006.01) F04B 47/06 (2006.01) F16K 31/02 (2006.01) E21B 34/00 (2006.01)

Patent

CA 2270851

An electro-hydraulic surface controlled subsurface safety valve is controllable entirely electrically. The actuator operates on an electrically actuated pressure pump and a supply of hydraulic fluid reservoired in the tool proximate to the safety valve. A dump valve is normally open so that if power fails, pressure is released and the safety valve closes.

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