Cement slurry compositions responsive to hydrocarbon gas

US2021189217A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2021189217-A1
Application numberUS-202117191229-A
CountryUS
Kind codeA1
Filing dateMar 3, 2021
Priority dateAug 16, 2018
Publication dateJun 24, 2021
Grant date

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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.

Methods and compositions for reducing gas seepage into a cement slurry. One method includes adding a formulation to the cement slurry, the formulation comprising at least one component responsive to a predetermined concentration of hydrocarbon gas in the cement slurry, where upon the cement slurry reaching the predetermined concentration of hydrocarbon gas, the hydrocarbon gas undergoes at least a partial oxidation caused by the formulation to quicken the setting time of the cement slurry via release of heat by an exothermic reaction.

First claim

Opening claim text (preview).

That claimed is: 1 . A composition for reducing gas seepage into a cement slurry, the composition comprising: at least one component responsive to a predetermined concentration of hydrocarbon gas in the cement slurry, where upon the cement slurry reaching the predetermined concentration of hydrocarbon gas, the hydrocarbon gas undergoes at least a partial oxidation caused by the composition to quicken the setting time of the cement slurry via release of heat by an exothermic reaction. 2 . The composition according to claim 1 , where the composition includes an oxidant and a catalyst. 3 . The composition according to claim 2 , where the oxidant comprises hydrogen peroxide. 4 . The composition according to claim 3 , where the catalyst is selected from the group consisting of: a metal-containing heterogeneous catalyst; a metal-containing homogeneous catalyst; and combinations thereof. 5 . The composition according to claim 4 , where the metal comprises a metal selected from the group consisting of: gold; palladium; platinum; copper; iron; molybdenum; tin; rhodium; ruthenium; and combinations of the same. 6 . The composition according to claim 5 , where the composition further comprises a strong acid. 7 . The composition according to claim 4 , comprising the metal-containing heterogeneous catalyst, where the heterogeneous catalyst includes supported nanoparticles. 8 . The composition according to claim 2 , where at least one component is encapsulated. 9 . The composition according to claim 1 , where the at least one component comprises between about 1% by weight and about 6% by weight of the cement slurry.

Assignees

Inventors

Classifications

  • C04B28/02Primary

    containing hydraulic cements other than calcium sulfates · CPC title

  • as catalysts or catalyst carriers · CPC title

  • Portland cements · CPC title

  • C09K8/493Primary

    Additives for reducing or preventing gas migration · CPC title

  • Oxides, Hydroxides · CPC title

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What does patent US2021189217A1 cover?
Methods and compositions for reducing gas seepage into a cement slurry. One method includes adding a formulation to the cement slurry, the formulation comprising at least one component responsive to a predetermined concentration of hydrocarbon gas in the cement slurry, where upon the cement slurry reaching the predetermined concentration of hydrocarbon gas, the hydrocarbon gas undergoes at leas…
Who is the assignee on this patent?
Saudi Arabian Oil Co
What technology area does this patent fall under?
Primary CPC classification C04B28/02. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Thu Jun 24 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).