Vent valve

Details Vent valve Vent valve

E - Fixed Constructions

21

B

E21B 23/00 (2006.01) E21B 23/04 (2006.01) E21B 23/06 (2006.01) E21B 34/06 (2006.01) F16K 17/40 (2006.01) F16K 24/04 (2006.01)

Patent

CA 2205334

A bleed valve design for a wireline pressure setting tool is disclosed. The chamber within the setting tool is vented through a bleed valve assembly which features a rupture disk secured over an opening with an O-ring seal. A piercing tool is used and in conjunction with the shape of the rupture disk creates a break in the rupture disk in a manner that will not reseal. Lateral passages are provided to direct the vented gases away from operating personnel. An alternative venting mechanism is provided by having a thin wall segment which can be penetrated by a piercing tool in the event the rupture disk assembly for any reason fails to allow venting of the setting tool.

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