Blowout preventer
AssigneeAxon EP, Inc.
InventorsGary Pendleton, Gary Stratulate
Life of this patent
Estimating the term…
Abstract
A blowout preventer comprising: a main body comprising a seal seating profile, one or more bonnet guideways, and one or more slide guideways; a bonnet attached to the main body, wherein the bonnet comprises one or more guide rods, a ram unit, and a seal seating profile; two retention units attached to the main body and the bonnet, wherein each retention unit comprise a clamp block, one or more guide rods, and a bonnet guideway; and a metal seal, wherein the metal seal is seated in the seal seating profile of the main body and the seal seating profile of the bonnet.
Claims20
A blowout preventer with boltless bonnet retention and sealing, comprising:
- a main body forming intersecting horizontal and vertical passageways extending through the main body wherein the horizontal passageway forms a ram location, the main body comprising:
- a seal seating profile disposed on a surface of the main body around the ram location, one or more bonnet guideways formed through the main body, and one or more slide guideways formed through the main body;
- a bonnet attached to the main body, wherein the bonnet comprises:
- one or more guide rods that engage the one or more bonnet guideways of the main body, a ram unit capable of seating in the ram location of the main body, and a seal seating profile disposed on a surface of the bonnet;
- two retention units attached to the main body and the bonnet, wherein each retention unit comprises a clamp block in engagement with the bonnet and one or more guide rods in engagement with the one or more slide guideways of the main body;
- and
- a metal seal, wherein the metal seal is seated in the seal seating profile of the main body and the seal seating profile of the bonnet.
A blowout preventer comprising:
- a main body forming intersecting horizontal and vertical passageways extending through the main body;
- a first bonnet attached to a first side of the main body by means of one or more high load capacity fasteners, wherein the one or more high load capacity fasteners each comprise a packing nut with an internal thread to match a thread detail of a stud connection in the main body, wherein the packing nut comprises a series of tappings that provide a location for set screws to extend through the packing nut and into engagement with the main body to create a preload on the stud connection;
- and
- a second bonnet attached to a second side of the main body by means of one or more high load capacity fasteners, wherein the one or more high load capacity fasteners each comprise a packing nut with an internal thread to match a thread detail of a stud connection in the main body, wherein the packing nut comprises a series of tappings that provide a location for set screws to extend through the packing nut and into engagement with the main body to create a preload on the stud connection.
A method for assembling a blowout preventer, comprising:
- receiving one or more guide rods of a first retention unit in engagement with one or more slide guideways formed through a main body of the blowout preventer, wherein the main body forms intersecting horizontal and vertical passageways extending through the main body and wherein the main body comprises a seal seating profile disposed on a surface of the main body;
- receiving one or more guide rods of a second retention unit in engagement with one or more slide guideways formed through the main body of the blowout preventer;
- receiving one or more guide rods of a bonnet in engagement with one or more bonnet guideways formed through the main body, wherein the bonnet comprises a seal seating profile disposed on a surface of the bonnet;
- seating a metal seal between the seal seating profile of the main body and the seal seating profile of the bonnet;
- and
- retaining the bonnet against the main body by engaging the bonnet via clamp blocks disposed on each of the first and second retention units.
Dependencies are inferred from the claim text.