Functionalized dimethoxyphenol monomers and polymers prepared therefrom
US-2017015775-A1 · Jan 19, 2017 · US
Flexible durable cement
US10689560B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10689560-B2 |
| Application number | US-201916265358-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 1, 2019 |
| Priority date | Mar 19, 2018 |
| Publication date | Jun 23, 2020 |
| Grant date | Jun 23, 2020 |
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Abstract
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According to at least one embodiment of the present description, a cement slurry includes 50% to 90% BWOC of a cement precursor material based on a total weight of the cement slurry; and from 10% to 50% BWOC of a flexible additive based on the total weight of the cement slurry. The flexible additive includes hydrophilic polyolefin fibers or 2,6-di-tert-butyl-p-cresol.
First claim
Opening claim text (preview).
What is claimed is: 1. A wellbore cementing system comprising: a tubular positioned in a wellbore such that an annulus is formed between a geological formation and the tubular; and a cement structure positioned in at least a portion of the annulus, where the cement structure comprises from 10% to 50% by weight of cement of a flexible additive based on the total weight of the cement structure, and where the flexible additive comprises 2,6-di-tert-butyl-p-cresol. 2. The wellbore cementing system of claim 1 , where the flexible additive consists essentially of 2,6-di-tert-butyl-p-cresol. 3. The wellbore cementing system of claim 1 , where the flexible additive has a density from 1000 kg/m 3 to 1700 kg/m 3 . 4. The wellbore cementing system of claim 1 , where the flexible additive has a specific gravity from 2.0 to 3.0. 5. The wellbore cementing system of claim 1 , where the cement structure comprises from 10% to 30% by weight of cement of the flexible additive based on the total weight of the cement structure. 6. The wellbore cementing system of claim 1 , where the cement structure has a Young's modulus 10 days after curing from 0.90×10 6 psi to 1.20×10 6 psi. 7. The wellbore cementing system of claim 1 , where the cement structure has a Young's modulus 20 days after curing from 0.90×10 6 psi to 1.20×10 6 psi. 8. The wellbore cementing system of claim 1 , where the cement structure has a Young's modulus 30 days after curing from 0.90×10 6 psi to 1.20×10 6 psi. 9. The wellbore cementing system of claim 1 , where the cement structure has a Poisson's ratio 10 days after curing from 0.120 psi to 0.140 psi. 10. The wellbore cementing system of claim 1 , where the cement structure has a Poisson's ratio 20 days after curing from 0.110 psi to 0.130 psi. 11. The wellbore cementing system of claim 1 , where the cement structure has a Poisson's ratio 30 days after curing from 0.190 psi to 0.210 psi.
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- What does patent US10689560B2 cover?
- According to at least one embodiment of the present description, a cement slurry includes 50% to 90% BWOC of a cement precursor material based on a total weight of the cement slurry; and from 10% to 50% BWOC of a flexible additive based on the total weight of the cement slurry. The flexible additive includes hydrophilic polyolefin fibers or 2,6-di-tert-butyl-p-cresol.
- Who is the assignee on this patent?
- Saudi Arabian Oil Co
- What technology area does this patent fall under?
- Primary CPC classification C04B28/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 23 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).