Non-rotating method and system for isolating wellhead pressure
US-2015376977-A1 · Dec 31, 2015 · US
Universal frac sleeve
US8936075B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8936075-B2 |
| Application number | US-201013257964-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 29, 2010 |
| Priority date | May 4, 2009 |
| Publication date | Jan 20, 2015 |
| Grant date | Jan 20, 2015 |
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Abstract
Official abstract text for this publication.
A wellhead assembly is provided. In one embodiment, the wellhead assembly includes a universal frac sleeve assembly for isolating portions of a wellhead assembly from pressurized fracing fluid. The universal frac sleeve assembly may include an inner sleeve, an outer sleeve, and a seal. Axial movement of the inner sleeve relative to the outer sleeve causes the seal to expand radially, thereby forming a seal within the wellhead assembly.
First claim
Opening claim text (preview).
The invention claimed is: 1. A system, comprising: a wellhead assembly, comprising a tubing head; a frac sleeve assembly comprising an inner sleeve, an outer sleeve, an annular seal, and an annular retainer ring attached to the inner sleeve, wherein the annular seal is located between the outer sleeve and the annular retainer ring, wherein axial movement of the inner sleeve relative to the outer sleeve causes the annular seal to expand radially, thereby forming a seal with the…
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Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
- E21B33/03Primary
Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
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- What does patent US8936075B2 cover?
- A wellhead assembly is provided. In one embodiment, the wellhead assembly includes a universal frac sleeve assembly for isolating portions of a wellhead assembly from pressurized fracing fluid. The universal frac sleeve assembly may include an inner sleeve, an outer sleeve, and a seal. Axial movement of the inner sleeve relative to the outer sleeve causes the seal to expand radially, thereby fo…
- Who is the assignee on this patent?
- Guidry Kirk P, Cameron Int Corp
- 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 Jan 20 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).