Fracturing tool and backup
US-2016312555-A1 · Oct 27, 2016 · US
Element
US10689940B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10689940-B2 |
| Application number | US-201815955265-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 17, 2018 |
| Priority date | Apr 17, 2018 |
| Publication date | Jun 23, 2020 |
| Grant date | Jun 23, 2020 |
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
An element including an undercut in the element extending from an innermost surface of the element radially outwardly into the element, and a pathway intersecting the undercut and extending from the undercut to an outermost surface of the element, the pathway fluidly connecting the outermost surface of the element to the undercut prior to setting of the seal.
First claim
Opening claim text (preview).
What is claimed is: 1. A seal comprising: an element having a frustoconical inside surface extending from one axial end of the element to the other axial end of the element, an outside surface of the element, a lip at a leading end of the element and a ramp extending from the lip to the outside surface; an undercut in the element extending through the frustoconical inside surface of the element radially outwardly into the element, the frustoconical surface continuing on both axial ends of the undercut at least partially longitudinally overlapping the ramp; and a pathway intersecting the undercut and extending from the undercut to an outermost surface of the element, the pathway fluidly connecting the outermost surface of the element to the undercut prior to setting of the seal. 2. The seal as claimed in claim 1 wherein the lip is dimensioned to be 0.1% to 70% of the radial thickness of a remainder of the element. 3. The seal as claimed in claim 1 wherein the lip includes an undersurface that creates a fluid tight fit with a separate component. 4. The seal as claimed in claim 1 wherein the undercut is fully annular. 5. The seal as claimed in claim 1 wherein the undercut is partially annular. 6. The seal as claimed in claim 1 wherein the pathway is a plurality of pathways. 7. A seal comprising: an element having a frustoconical inside surface extending from one axial end of the element to the other axial end of the element; an undercut in the element extending through the frustoconical inside surface of the element radially outwardly into the element, the frustoconical surface continuing on both axial ends of the undercut; a pathway intersecting the undercut and extending from the undercut to an outermost surface of the element, the pathway fluidly connecting the outermost surface of the element, to t undercut prior to setting of the seal; and a fluid path at a trailing end of the element extending from the frustoconical inside surface to the outermost surface.
Assignees
Inventors
Classifications
with stuffing-boxes for elastic or plastic packings · CPC title
with a member expanded radially by axial pressure (E21B33/122, E21B33/124 take precedence) · CPC title
Plugs {(F16L55/128 takes precedence)} · CPC title
Packers; Plugs (used for cementing E21B33/134, E21B33/16) · CPC title
Bridging plugs · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10689940B2 cover?
- An element including an undercut in the element extending from an innermost surface of the element radially outwardly into the element, and a pathway intersecting the undercut and extending from the undercut to an outermost surface of the element, the pathway fluidly connecting the outermost surface of the element to the undercut prior to setting of the seal.
- Who is the assignee on this patent?
- Parekh Yash, Xu Yingqing, Russell Ronnie, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification E21B33/1208. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Jun 23 2020 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).