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US 10,479,921 B2Granted
Cement having cross-linked polymers
AssigneeSaudi Arabian Oil Company
InventorElizabeth Q. Contreras
Life of this patent
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Abstract
A method of forming a wellbore cement 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.
Claims11
A method of forming a cement composition for use in a wellbore comprising:
- forming a cross linked polyamide by reacting a trifunctional carboxylic acid with a diamine;
- combining an amount of cement, water, and the cross linked polyamide to form a mixture;
- and
- curing the mixture to from a cement composition.
1 more element
A method of forming a cement composition for use in a wellbore comprising:
- forming a cross linked polyamide by combining a trifunctional carboxylic acid with 1,6-diaminohexane mixed with sebacoyl chloride
- combining an amount of cement, water, and the cross linked polyamide to form a mixture;
- and
- curing the mixture to form a cement composition.
1 more element
Dependencies are inferred from the claim text.