High Strength Inlay to Improve Lock-Down Capacity in a Wellhead

US2015114667A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2015114667-A1
Application numberUS-201414522126-A
CountryUS
Kind codeA1
Filing dateOct 23, 2014
Priority dateOct 28, 2013
Publication dateApr 30, 2015
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A wellhead assembly includes a wellhead housing having a bore and a locking profile including a gallery slot, and an annular notch. An inner wellhead assembly is selectively landed in the bore of the wellhead housing, the inner wellhead assembly having a lock ring with a lock ring profile that engages the locking profile. The engaging surface is a sloped downward facing surface at an axially upper end of the gallery slot. The annular notch has a notch engaging profile with a downward facing notch upper shoulder and an upward facing notch lower shoulder. The locking profile includes an inlay, the inlay being located on the notch upper shoulder and the engaging surface.

First claim

Opening claim text (preview).

What is claimed is: 1 . A wellhead assembly comprising: a wellhead housing having a bore and a locking profile including a gallery slot and an annular notch; and an inner wellhead assembly selectively landed in the bore of the wellhead housing, the inner wellhead assembly having a lock ring with a lock ring profile that engages the locking profile; wherein the gallery slot is defined by an enlarged inner diameter of the bore; the gallery slot has an engaging surface, the e…

Assignees

Inventors

Classifications

  • E21B33/04Primary

    Fixed Constructions · mapped topic

  • E21B19/16Primary

    Fixed Constructions · mapped topic

  • Fixed Constructions · mapped topic

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What does patent US2015114667A1 cover?
A wellhead assembly includes a wellhead housing having a bore and a locking profile including a gallery slot, and an annular notch. An inner wellhead assembly is selectively landed in the bore of the wellhead housing, the inner wellhead assembly having a lock ring with a lock ring profile that engages the locking profile. The engaging surface is a sloped downward facing surface at an axially up…
Who is the assignee on this patent?
Vetco Gray Inc
What technology area does this patent fall under?
Primary CPC classification E21B33/04. Mapped technology areas include Fixed Constructions.
When was this patent published?
Publication date Thu Apr 30 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).