Equalizing flapper for downhole safety valves

Details Equalizing flapper for downhole safety valves Equalizing flapper for downhole safety valves

E - Fixed Constructions

21

B

E21B 34/06 (2006.01) E21B 34/10 (2006.01) F16K 1/20 (2006.01) F16K 39/02 (2006.01) E21B 34/00 (2006.01)

Patent

CA 2364329

An equalizer valve for a flapper in a subsurface safety valve is described. A tapered plunger is biased by compact spring disposed in the plunger bore. The spring is supported by a C-shaped ring extending into a peripheral groove around the plunger bore.

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