Pressure assisted blowout preventer
US-9410393-B2 · Aug 9, 2016 · US
Blowout preventer with pressure-isolated operating piston assembly
US8944403B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8944403-B2 |
| Application number | US-201213553671-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 19, 2012 |
| Priority date | Jul 19, 2012 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A ram-type blowout preventer including an operating piston assembly isolated from wellbore pressure effects is provided. In one embodiment, a blowout preventer includes piston coupled to a ram by a connecting rod, and the connecting rod is inserted into a recess in the ram. A pressure-isolating seal may be provided in the recess between the connecting rod and the ram to isolate the end of the connecting rod within the recess from wellbore pressure in the blowout preventer. Additional systems, devices, and methods are also disclosed.
First claim
Opening claim text (preview).
The invention claimed is: 1. A system comprising: a blowout preventer including: a hollow body; a ram disposed in the hollow body; and a bonnet assembly coupled to the hollow body, the bonnet assembly including a piston and a connecting rod that connects the piston to the ram to enable the piston to drive the ram within the hollow body, wherein the connecting rod includes an end face received by the ram and the connecting rod is coupled to the ram with a pressure-isolating se…
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Classifications
Mechanical Engineering · mapped topic
- E21B33/063Primary
Fixed Constructions · mapped topic
- E21B33/062Primary
Fixed Constructions · mapped topic
Cross-Sectional Technologies · mapped topic
- E21B33/061Primary
Fixed Constructions · mapped topic
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Frequently asked questions
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- What does patent US8944403B2 cover?
- A ram-type blowout preventer including an operating piston assembly isolated from wellbore pressure effects is provided. In one embodiment, a blowout preventer includes piston coupled to a ram by a connecting rod, and the connecting rod is inserted into a recess in the ram. A pressure-isolating seal may be provided in the recess between the connecting rod and the ram to isolate the end of the c…
- Who is the assignee on this patent?
- Jurena Johnny E, Mcwhorter David J, Gibbs Charles E, and 2 more
- 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 03 2015 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).