Pressure assisted blowout preventer
US-9410393-B2 · Aug 9, 2016 · US
Blowout preventer with wedge ram assembly and method of using same
US9249643B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9249643-B2 |
| Application number | US-201313834645-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 15, 2013 |
| Priority date | Mar 15, 2013 |
| Publication date | Feb 2, 2016 |
| Grant date | Feb 2, 2016 |
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Abstract
Official abstract text for this publication.
A ram assembly of a blowout prevent (BOP) includes a ram shuttle, a ram wedge and a ram seat. The ram shuttle and the ram wedge are slidably positionable in a ram channel of a BOP housing between a retracted and extended position. The ram shuttle has a wedge cavity extending therethrough and an inclined surface thereon. The ram wedge has a tubular cavity therethrough for receiving the tubular. The ram wedge has a corresponding inclined surface engageable with the inclined surface of the ram shuttle, and wedges between the ram shuttle and the housing whereby a force is generated therebetween. The ram seat is positionable in the housing about the passage, and is engageable with the ram wedge and the housing when the ram shuttle and the ram wedge are moved to the extended position whereby a seal is formed therebetween.
First claim
Opening claim text (preview).
What is claimed is: 1. A ram assembly of a blowout preventer for sealing a wellbore, the blowout preventer having a housing with a passage therethrough for receiving a tubular of the wellbore and a ram channel therethrough, the ram assembly comprising: a ram shuttle slidably positionable in the ram channel between a retracted and extended position, the ram shuttle having a wedge cavity extending therethrough and an inclined surface thereon; a ram wedge having a tubular cavity th…
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- E21B33/063Primary
Fixed Constructions · mapped topic
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- What does patent US9249643B2 cover?
- A ram assembly of a blowout prevent (BOP) includes a ram shuttle, a ram wedge and a ram seat. The ram shuttle and the ram wedge are slidably positionable in a ram channel of a BOP housing between a retracted and extended position. The ram shuttle has a wedge cavity extending therethrough and an inclined surface thereon. The ram wedge has a tubular cavity therethrough for receiving the tubular. …
- Who is the assignee on this patent?
- Nat Oilwell Varco Lp
- What technology area does this patent fall under?
- Primary CPC classification E21B33/063. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Feb 02 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).