Washpipe seal assembly
US-2023235634-A1 · Jul 27, 2023 · US
Washpipe assembly
US12480376B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12480376-B2 |
| Application number | US-202418599500-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 8, 2024 |
| Priority date | Mar 9, 2023 |
| Publication date | Nov 25, 2025 |
| Grant date | Nov 25, 2025 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A washpipe assembly is configured to form a fluid tight seal between a rotating and non-rotating component. The washpipe assembly has a washpipe, a static seal assembly coupled to one end of the washpipe, and a dynamic seal assembly coupled to an opposite end of the washpipe. The dynamic seal has a seal disposed within an outer housing. The seal is contained within a seal cavity formed by the outer housing and an outer diameter of the washpipe. The dynamic seal assembly is rotatable relative to the washpipe while the seal maintains sealing contact with the outer diameter of the washpipe.
First claim
Opening claim text (preview).
The invention claimed is: 1 . A washpipe assembly, comprising: a washpipe; a static seal assembly coupled to one end of the washpipe; and a dynamic seal assembly coupled to an opposite end of the washpipe, wherein the dynamic seal assembly comprises: an outer housing; a seal disposed within the outer housing, wherein the seal is contained within a seal cavity formed by the outer housing and an outer diameter of the washpipe; a removable end cap member coupled to the outer housing which forms an upper portion of the seal cavity; a seal support member disposed in the seal cavity above the seal; a spring member disposed within the seal, wherein a port is formed in the seal to provide fluid communication to an inner surface of the spring member, wherein the dynamic seal assembly is rotatable relative to the washpipe while the seal maintains sealing contact with the outer diameter of the washpipe; and wherein the seal cavity is at least partially formed by an inner shoulder of the outer housing, and wherein one or more fluid paths are disposed through the inner shoulder of the outer housing to provide fluid communication to the seal cavity and the port of the seal. 2 . The washpipe assembly of claim 1 , wherein the seal comprises a fluid-spring energized seal. 3 . The washpipe assembly of claim 1 , wherein the washpipe comprises an inner bore which provides fluid communication with the one or more fluid paths disposed through the inner shoulder of the outer housing. 4 . A washpipe assembly, comprising: a washpipe; a static seal assembly coupled to one end of the washpipe; and a dynamic seal assembly coupled to an opposite end of the washpipe, wherein the dynamic seal assembly comprises: an outer housing; a seal cavity formed by a cavity in the outer housing and an outer diameter of the washpipe; a seal disposed within the outer housing, wherein the seal is contained within the seal cavity; a removable end cap member coupled to the outer housing which forms an upper portion of the seal cavity; a seal support member disposed in the seal cavity adjacent to the seal; and a spring member disposed within the seal, wherein the seal is contained within a seal cavity formed by the outer housing and an outer diameter of the washpipe, wherein a port is formed in the seal to provide fluid communication to an inner surface of the spring member, wherein the seal cavity is at least partially formed by an inner shoulder of the outer housing, and wherein one or more fluid paths are disposed through the inner shoulder of the outer housing to provide fluid communication to the seal cavity and the port of the seal, and wherein the dynamic seal assembly is rotatable relative to the washpipe while the seal maintains sealing contact with the outer diameter of the washpipe. 5 . The washpipe assembly of claim 4 , wherein the washpipe comprises an inner bore which provides fluid communication with the one or more fluid paths disposed through the outer housing.
Assignees
Inventors
Classifications
Labyrinth packings · CPC title
the pressing force resulting from fluid pressure · CPC title
with stuffing-boxes for elastic or plastic packings · CPC title
comprising at least two sealings in succession (F16J15/162, F16J15/40 take precedence) · CPC title
- E21B17/05Primary
Swivel joints · CPC title
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Frequently asked questions
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- What does patent US12480376B2 cover?
- A washpipe assembly is configured to form a fluid tight seal between a rotating and non-rotating component. The washpipe assembly has a washpipe, a static seal assembly coupled to one end of the washpipe, and a dynamic seal assembly coupled to an opposite end of the washpipe. The dynamic seal has a seal disposed within an outer housing. The seal is contained within a seal cavity formed by the o…
- Who is the assignee on this patent?
- Forum Us Inc
- What technology area does this patent fall under?
- Primary CPC classification E21B17/05. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Nov 25 2025 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).