Suspension for enhanced oil recovery

US10240079B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10240079-B2
Application numberUS-201715448746-A
CountryUS
Kind codeB2
Filing dateMar 3, 2017
Priority dateJun 4, 2010
Publication dateMar 26, 2019
Grant dateMar 26, 2019

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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.

Embodiments of the present disclosure include suspensions for use in enhanced oil recovery, and methods of using the suspensions for recovering oil. Suspensions of the present disclosure include a nonionic surfactant that can dissolve in supercritical carbon dioxide, and a metal salt having a concentration of 200 to 1 parts-per-million.

First claim

Opening claim text (preview).

What is claimed: 1. A system, comprising: supercritical carbon dioxide flowing in piping; and a suspension injected into the supercritical carbon dioxide, the suspension having a nonionic surfactant and a metal salt at a concentration of 200 to 1 parts-per-million, where the suspension includes an acid formed with an oxidizing agent prior to the suspension being injected into the supercritical carbon dioxide. 2. The system of claim 1 , where the piping has an inner diameter of 2.5 cm to 16 cm. 3. The system of claim 2 , where the suspension is injected into the supercritical carbon dioxide at a concentration of 100 to 5000 parts-per-million, where the nonionic surfactant is completely soluble in the supercritical carbon dioxide. 4. The system of claim 1 , where the metal salt is selected from the group consisting of a carboxylate, a boron salt, a titanium salt, a metal carbonate, a metal chloride, a metal sulfate, a metal phosphate, a metal sulphonate, a metal phosphonate, a metal-cyanide salt, and combinations thereof.

Assignees

Inventors

Classifications

  • Numerical flow-rate values · CPC title

  • Processes · CPC title

  • Injecting CO2 or carbonated water (in combination with organic material C09K8/594) · CPC title

  • Numerical composition values of components or mixtures, e.g. percentage of components · CPC title

  • Multiple inlet with single outlet · CPC title

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Frequently asked questions

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What does patent US10240079B2 cover?
Embodiments of the present disclosure include suspensions for use in enhanced oil recovery, and methods of using the suspensions for recovering oil. Suspensions of the present disclosure include a nonionic surfactant that can dissolve in supercritical carbon dioxide, and a metal salt having a concentration of 200 to 1 parts-per-million.
Who is the assignee on this patent?
Dow Global Technologies Llc
What technology area does this patent fall under?
Primary CPC classification C09K8/594. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Mar 26 2019 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).