Patent ID: 6158505
Filing Date: 2000-12-12
Classification: E21B

Abstract:
A ram-type blowout preventer for oil and gas drilling operations including a shearing blind ram, comprising:a body with a vertical bore;a pair of opposing bonnet assemblies laterally disposed in said body;a pair of opposing shearing blind rams laterally moveable within said bonnet assemblies;a pair of blade seals for sealing against an opposing shearing blind ram disposed in one of said shearing blind rams, each of said blade seals is a generally planar member having a first end and a second end;said first end and said second end of said generally planar member connected by an upper surface and a lower surface and a pair of lateral sides, said lateral sides tapering from said first end of said generally planar member to said second end of said generally planar member, said pair of lateral sides each having a outer cap;said generally planar member is molded of rubber; and,said lower surface of said generally planar member includes a longitudinal groove parallel to said lateral sides.