Blowout Preventer with Pipe Ram Packer Assemblies with Support Tab

摘要

A pipe ram blowout preventer may be used for sealing about an object positioned in a vertical bore extending through the blowout preventer. The blowout preventer includes a pipe ram assembly movable towards the tubular, the pipe ram assembly including a packer assembly comprising an elastomeric body for sealing against the object. The packer assembly includes an upper plate position above the elastomeric body which includes a tab extending from the upper plate. The tab resists extrusion of the elastomeric body in high temperature environments by containing the elastomeric material and forming a metal-to-metal seal about the object positioned in the blowout preventer vertical bore.

主权项

1. A blowout preventer (“BOP”) assembly for sealing against an object, comprising:
a body comprising a vertical bore extending through the body; pipe ram assemblies configured to seal about the object when located in the vertical bore, each pipe ram assembly comprising a packer assembly comprising:
an upper plate;a lower plate;a body positioned between the upper and lower plates, the body comprising an elastomeric material and a surface configured to engage the object; anda tab extending from one of the upper and lower plates, wherein the tab is configured to diminish extrusion of the elastomeric material.