Functionalized dimethoxyphenol monomers and polymers prepared therefrom
US-2017015775-A1 · Jan 19, 2017 · US
Self-healing durable cement
US10655044B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10655044-B2 |
| Application number | US-201815964420-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 27, 2018 |
| Priority date | Apr 27, 2018 |
| Publication date | May 19, 2020 |
| Grant date | May 19, 2020 |
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- Title
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Abstract
Official abstract text for this publication.
A cement slurry includes from 1% to 90% BWOC of a cement precursor material based on the total weight of the cement slurry; and from 1% to 40% BWOC of a swelling additive based on the total weight of the cement slurry. The swelling additive includes at least one micronized rubber, at least one distillate, and at least one solvent-refined heavy paraffinic.
First claim
Opening claim text (preview).
What is claimed is: 1. A cement slurry comprising: from 1% to 90% by weight of the cement of a cement precursor material based on a total weight of the cement slurry; and from 1% to 40% by weight of the cement of a swelling additive based on the total weight of the cement slurry, where the swelling additive comprises (a) at least one micronized rubber in an amount from 50.0% to 95.0% by weight of the cement, and (b) comprises a combination of at least one distillate and at least one solvent-refined heavy paraffinic in an amount from 5.0% to 15.0% by weight of the cement. 2. The cement slurry of claim 1 , where the at least one micronized rubber comprises nitrile rubber, styrene butadiene, fluoro silicone, isobutylene maleic anhydride, acrylic acid-type polymers, polyethylene oxide polymers, bentonite, and mixtures of these components. 3. The cement slurry of claim 1 , where the at least one micronized rubber has a density from 10.0 lb/gal to 20.5 lb/gal. 4. The cement slurry of claim 1 , where the at least one micronized rubber has a specific gravity from 0.85 to 1.10. 5. The cement slurry of claim 1 , where the at least one micronized rubber comprises a mixture of carbon black, zinc oxide, and an elastomer. 6. The cement slurry of claim 5 , where the carbon black comprises from 10.0% to 40.0% by weight of the cement of the at least one micronized rubber, the zinc oxide comprises less than 3.0% by weight of the cement of the at least one micronized rubber, and the elastomer comprises from 60.0% to 80.0% by weight of the cement of the at least one micronized rubber. 7. The cement slurry of claim 1 , where the at least one micronized rubber comprises a mixture of acrylonitrile rubber, zinc oxide, and styrene butadiene copolymer. 8. The cement slurry of claim 7 , where the acrylonitrile rubber comprises from 25.0% to 50.0% by weight of the cement of the at least one micronized rubber, the zinc oxide comprises less than 2.5% by weight of the cement of the micronized rubber, and the styrene butadiene copolymer comprises from 50.0% to 70.0% la weight of the cement of the micronized rubber. 9. The cement slurry of claim 1 , where the swelling additive has a density from 0.5 g/cm 3 to 2.0 g/cm 3 .
Assignees
Inventors
Classifications
Methods or devices for cementing, for plugging holes, crevices or the like · CPC title
for cementing casings into boreholes · CPC title
- C04B28/02Primary
containing hydraulic cements other than calcium sulfates · CPC title
containing additives for specific purposes · CPC title
- C09K8/44Primary
containing organic binders only · CPC title
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Frequently asked questions
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- What does patent US10655044B2 cover?
- A cement slurry includes from 1% to 90% BWOC of a cement precursor material based on the total weight of the cement slurry; and from 1% to 40% BWOC of a swelling additive based on the total weight of the cement slurry. The swelling additive includes at least one micronized rubber, at least one distillate, and at least one solvent-refined heavy paraffinic.
- 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 Tue May 19 2020 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).