Unitary blade seal for a shearing blind ram in a ram type blowout preventer
AssigneeCooper Cameron Corporation
InventorMiguel Urrutia
Life of this patent
Estimating the term…
Abstract
A unitary blade seal for a shearing blind ram of a ram-type blowout preventer is disclosed and includes an elongate member having a generally semi-circular cross section with a curved upper surface and a lower surface. The lower surface has a pair of laterally extending sides that taper outwardly and have a metal outer cap bonded thereto. The metal outer caps form an acute angle that engages a complementary groove formed in the upper ram of the shearing blind ram assembly.
Claims21
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 blade seal for sealing against an opposing shearing blind ram disposed in one of said shearing blind rams, said blade seal having a generally semi-circular cross section;
- said generally semi-circular cross section having a curved upper surface and a lower surface, said lower surface having a pair of laterally extending sides, said pair of laterally extending sides each having a outer cap;
- and,
- said generally semi-circular cross section is molded of rubber.
A shearing blind ram assembly for a ram-type blowout preventer used in oil and gas drilling operations, comprising:
- an upper ram and a lower ram;
- said upper ram and said lower ram including top seals and side seals for sealing in a guideway of a ram-type blowout preventer;
- a blade seal positioned on the lower face of said upper ram;
- said lower ram including a seal surface for engagement with said blade seal when said shearing blind ram assembly is closed;
- said blade seal having a generally semi-circular cross section;
- said generally semi-circular cross section having a curved upper surface and a lower surface, said lower surface having a pair of laterally extending sides, said pair of laterally extending sides each having a outer cap;
- and,
- said generally semi-circular cross section is molded of rubber.
A blade seal for a shearing blind ram for a ram-type blowout preventer used in oil and gas drilling operations, comprising:
- an elongate member having a generally semi-circular cross section;
- said generally semi-circular cross section having a curved upper surface and a lower surface, said lower surface having a pair of laterally extending sides, said pair of laterally extending sides each having a outer cap;
- and,
- said generally semi-circular cross section is molded of rubber.
Dependencies are inferred from the claim text.