Method for carbon dioxide sequestration

US9834381B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9834381-B2
Application numberUS-201514825869-A
CountryUS
Kind codeB2
Filing dateAug 13, 2015
Priority dateJul 25, 2012
Publication dateDec 5, 2017
Grant dateDec 5, 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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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A method for geo-sequestration of a carbon dioxide includes selection of a target water-laden geological formation with low-permeability interbeds, providing an injection well into the formation and injecting supercritical carbon dioxide (SC-CO 2 ) and water or bine into the injection well under conditions of temperature, pressure and density selected to cause the fluid to enter the formation and splinter and/or form immobilized ganglia within the formation.

First claim

Opening claim text (preview).

What is claimed is: 1. A method for storing a carbon dioxide in a geologic formation, comprising: injecting supercritical carbon dioxide and water or brine into the geologic formation under conditions of temperature, pressure and density and at an injection rate selected to cause the supercritical carbon dioxide to form ganglia that are immobilized by capillary trapping within the geologic formation. 2. The method of claim 1 , wherein the supercritical carbon dioxide and water or brine are alternately injected into the geologic formation. 3. The method of claim 1 , wherein the supercritical carbon dioxide and water or brine are mixed before being injected into the geologic formation. 4. The method of claim 3 , wherein the supercritical carbon dioxide and water or brine are mixed to form a two phase mixture. 5. A method for storing a carbon dioxide in a geologic formation, comprising: injecting supercritical carbon dioxide and water or brine into the geologic formation under conditions of temperature, pressure and density and at an injection rate selected to cause the supercritical carbon dioxide to form ganglia that are immobilized by capillary trapping within the geologic formation; wherein the supercritical carbon dioxide and water or brine are mixed before being injected into the geologic formation; and wherein the supercritical carbon dioxide and water or brine are mixed to form a two phase mixture.

Assignees

Inventors

Classifications

  • Carbon dioxide sequestration (storing fluids in porous layers B65G5/005) · CPC title

  • Cross-Sectional Technologies · mapped topic

  • B65G5/00Primary

    Storing fluids in natural or artificial cavities or chambers in the earth · CPC title

  • of CO2 · CPC title

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What does patent US9834381B2 cover?
A method for geo-sequestration of a carbon dioxide includes selection of a target water-laden geological formation with low-permeability interbeds, providing an injection well into the formation and injecting supercritical carbon dioxide (SC-CO 2 ) and water or bine into the injection well under conditions of temperature, pressure and density selected to cause the fluid to enter the formation a…
Who is the assignee on this patent?
Nat Tech & Eng Solutions Sandia Llc
What technology area does this patent fall under?
Primary CPC classification E21B41/0064. Mapped technology areas include Fixed Constructions.
When was this patent published?
Publication date Tue Dec 05 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).