Pipe-in-pipe apparatus, and methods and systems

US8950499B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8950499-B2
Application numberUS-201113190837-A
CountryUS
Kind codeB2
Filing dateJul 26, 2011
Priority dateJul 26, 2011
Publication dateFeb 10, 2015
Grant dateFeb 10, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

An apparatus is disclosed which provides fluid communication between the inner bore and the annular space in a pipe-in-pipe system. Other embodiments disclose an apparatus which provides fluid communication between adjacent segments of the annular space, between the inner bore or the annular space and an external source in a pipe-in-pipe type system. Methods and systems are disclosed utilizing the various apparatus embodiments to transport well fluids in an offshore or onshore hydrocarbon production operation.

First claim

Opening claim text (preview).

What is claimed is: 1. A pipe-in-pipe apparatus for flowing fluids there through, comprising: a. an inner conduit comprising an inner conduit wall having an inner surface and an outer surface and defining an inner bore within the inner conduit wall; b. an outer conduit comprising an outer conduit wall having an inner surface and an outer surface disposed about the inner conduit such that an annular space is provided between the inner surface of the outer conduit wall and the out…

Assignees

Inventors

Classifications

  • Fixed Constructions · mapped topic

  • E21B17/01Primary

    Fixed Constructions · mapped topic

  • Cross-Sectional Technologies · mapped topic

  • Cross-Sectional Technologies · mapped topic

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US8950499B2 cover?
An apparatus is disclosed which provides fluid communication between the inner bore and the annular space in a pipe-in-pipe system. Other embodiments disclose an apparatus which provides fluid communication between adjacent segments of the annular space, between the inner bore or the annular space and an external source in a pipe-in-pipe type system. Methods and systems are disclosed utilizing …
Who is the assignee on this patent?
Critsinelis Antonio C F, Mebarkia Sid A, Quinney Michael, and 2 more
What technology area does this patent fall under?
Primary CPC classification E21B17/01. 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).