Non-rotating method and system for isolating wellhead pressure
US-2015376977-A1 · Dec 31, 2015 · US
Wicker-type face seal and wellhead system incorporating same
US8950752B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8950752-B2 |
| Application number | US-82644310-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 29, 2010 |
| Priority date | Jun 29, 2010 |
| Publication date | Feb 10, 2015 |
| Grant date | Feb 10, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A wellhead seal assembly that forms a metal-to-metal seal between inner and outer wellhead members and a face seal between inner wellhead members. The face seal is created by two opposing sealing surfaces on inner wellhead members that sealingly engage each other. The inner wellhead members that interact to form a face seal may be a casing hanger, bridging hanger, or lockdown hanger. A wicker profile formed on one of the opposing seal surfaces bites into the opposing seal surface in response to a load. The face seal is designed such that well pressure enhances the face seal.
First claim
Opening claim text (preview).
What is claimed is: 1. A wellhead assembly with an axis, comprising: an outer wellhead member having a bore; a casing hanger located in the bore with a rim on an upper end having an upward facing seal surface, the casing hanger having an interior profile and a lower end for securing to a string of casing; a casing hanger packoff that seals between an outer diameter portion of the casing hanger and the bore of the outer wellhead member; an upper hanger located in the bore and…
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Classifications
Fixed Constructions · mapped topic
- E21B33/03Primary
Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
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- What does patent US8950752B2 cover?
- A wellhead seal assembly that forms a metal-to-metal seal between inner and outer wellhead members and a face seal between inner wellhead members. The face seal is created by two opposing sealing surfaces on inner wellhead members that sealingly engage each other. The inner wellhead members that interact to form a face seal may be a casing hanger, bridging hanger, or lockdown hanger. A wicker p…
- Who is the assignee on this patent?
- Gette Nicholas Peter, Faz Armando, Ellis Stephen, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification E21B33/03. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Feb 10 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).