Cementing a wellbore using cementing material encapsulated in a shell

US9593552B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9593552-B2
Application numberUS-201615226512-A
CountryUS
Kind codeB2
Filing dateAug 2, 2016
Priority dateOct 16, 2013
Publication dateMar 14, 2017
Grant dateMar 14, 2017

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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 system for cementing a wellbore penetrating an earth formation into which a pipe extends. A cement material is positioned in the space between the wellbore and the pipe by circulated capsules containing the cement material through the pipe into the space between the wellbore and the pipe. The capsules contain the cementing material encapsulated in a shell. The capsules are added to a fluid and the fluid with capsules is circulated through the pipe into the space between the wellbore and the pipe. The shell is breached once the capsules contain the cementing material are in position in the space between the wellbore and the pipe.

First claim

Opening claim text (preview).

The invention claimed is: 1. A method of cementing a wellbore penetrating an earth formation into which a conduit extends, said wellbore having a space between the wellbore and the conduit, comprising the steps of: circulating a drilling mud containing a setting material encapsulated in capsules through the conduit into the space between the wellbore and the conduit wherein said capsules have a shell with embedded particles of energetic material, and releasing said setting material encapsulated in capsules from said capsules into the space between the wellbore and the conduit thereby cementing the wellbore, wherein said step of releasing said setting material encapsulated in capsules from said capsules comprises sending a shock signal for igniting said particles of energetic material embedded in said shell of said capsules thereby breaching said shell and releasing said setting material from said capsules.

Assignees

Inventors

Classifications

  • Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements · CPC title

  • containing hydraulic cements other than calcium sulfates · CPC title

  • Well-drilling compositions · CPC title

  • E21B33/138Primary

    Plastering the borehole wall; Injecting into the formation · CPC title

  • Polyamides · CPC title

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What does patent US9593552B2 cover?
A system for cementing a wellbore penetrating an earth formation into which a pipe extends. A cement material is positioned in the space between the wellbore and the pipe by circulated capsules containing the cement material through the pipe into the space between the wellbore and the pipe. The capsules contain the cementing material encapsulated in a shell. The capsules are added to a fluid an…
Who is the assignee on this patent?
L Livermore Nat Security Llc, Apache Corp
What technology area does this patent fall under?
Primary CPC classification E21B33/138. Mapped technology areas include Fixed Constructions.
When was this patent published?
Publication date Tue Mar 14 2017 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).