Wellhead production blowout preventer ram

Details Wellhead production blowout preventer ram Wellhead production blowout preventer ram

1996-05-30

1998-06-16

Fox, John

Valves and valve actuation

Blow-out preventers

Radial reciprocating ram

251 11, E21B 3306

Patent

active

057658137

ABSTRACT:
The rubber layer on the ram is reinforced at the sealing areas by forming ribs on the ram core. The ribs function to resist extrusion of the rubber layer when the blowout preventer is subjected to high pressure from the well.

REFERENCES:
patent: Re18655 (1932-11-01), Jensen

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