Polymer cement composition and cementing method
US-2015344366-A1 · Dec 3, 2015 · US
Cement having cross-linked polymers
US10526522B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10526522-B2 |
| Application number | US-201916387980-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 18, 2019 |
| Priority date | Sep 20, 2016 |
| Publication date | Jan 7, 2020 |
| Grant date | Jan 7, 2020 |
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Abstract
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A wellbore cement composition that includes a cross-linked polyamide. The polyamide is formed by reacting a di-functional amine with an aromatic tri-functional carboxylic acid. The wellbore cement composition is created by blending cement and water with the polyamide and then allowed to cure. Increases in compressive strength, Young's Modulus, and Poisson's Ratio of the cement were realized by adding the polyamide to the cement composition.
First claim
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What is claimed is: 1. A cement composition for use in a wellbore comprising: a cement; a calcium silicate in the cement; and a polyaramide condensate compound that is cross-linked and formed by reacting a trifunctional carboxylic acid with a diamine. 2. The cement composition of claim 1 , where the diamine is selected from the group consisting of ethylenediamine, 1,3-diaminobenzene, 1,4-diaminobenzene, 1,6-diaminohexane, 1,4-phenylenediamine, and combinations. 3. The cement composition of claim 1 , where the polyaramide condensate comprises about 3% by weight of the cement. 4. The cement composition of claim 1 , wherein the polyaramide was prepared by condensation of the trifunctional carboxylic acid and the diamine at room temperature and by interfacial polymerization. 5. The cement composition of claim 1 , wherein the trifunctional carboxylic acid comprises trimesoyl chloride. 6. The cement composition of claim 1 , wherein the cement is disposed in a wellbore annulus that is formed between downhole casing and a wall of the wellbore.
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- What does patent US10526522B2 cover?
- A wellbore cement composition that includes a cross-linked polyamide. The polyamide is formed by reacting a di-functional amine with an aromatic tri-functional carboxylic acid. The wellbore cement composition is created by blending cement and water with the polyamide and then allowed to cure. Increases in compressive strength, Young's Modulus, and Poisson's Ratio of the cement were realized by …
- Who is the assignee on this patent?
- Saudi Arabian Oil Co
- What technology area does this patent fall under?
- Primary CPC classification C09K8/46. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 07 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).