Methods of magnetic particle delivery for oil and gas wells

US8936095B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8936095-B2
Application numberUS-79015110-A
CountryUS
Kind codeB2
Filing dateMay 28, 2010
Priority dateMay 28, 2010
Publication dateJan 20, 2015
Grant dateJan 20, 2015

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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.

An apparatus and method of conveying magnetic particles into a wellbore is disclosed. A plurality of particles which are magnetically attracted to one another in response to exposure to a magnetic field are delivered downhole via a degradable material. The degradable material confines the particles and conveys the particles to a desired location downhole. The structure comprising the degradable material and the confined particles can be lowered into a subterranean well by a cable or wire, or alternatively released into the well under the influence of gravity and flow induced forces. The material degrades in response to conditions encountered in a subterranean environment thus releasing the particles.

First claim

Opening claim text (preview).

What is claimed is: 1. An apparatus comprising: a plurality of particles magnetically attracted to one another in response to exposure to a magnetic field; a first material in which the plurality of particles is confined within the first material, the first material degrading in response to conditions encountered in a subterranean environment and thereby releasing the particles; the first material comprising a first geometrical profile; a second geometrical profile positione…

Assignees

Inventors

Classifications

  • E21B41/00Primary

    Fixed Constructions · mapped topic

  • Fixed Constructions · mapped topic

  • E21B33/00Primary

    Fixed Constructions · mapped topic

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Frequently asked questions

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What does patent US8936095B2 cover?
An apparatus and method of conveying magnetic particles into a wellbore is disclosed. A plurality of particles which are magnetically attracted to one another in response to exposure to a magnetic field are delivered downhole via a degradable material. The degradable material confines the particles and conveys the particles to a desired location downhole. The structure comprising the degradable…
Who is the assignee on this patent?
Ocalan Murat, Marya Manuel, Schlumberger Technology Corp
What technology area does this patent fall under?
Primary CPC classification E21B41/00. 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).