Sustainable non-hydraulic cement composition and methods of such cements in subterranean cementing operations

Patent metadata

Field	Value
Publication number	US-12247158-B2
Application number	US-202217892766-A
Country	US
Kind code	B2
Filing date	Aug 22, 2022
Priority date	Aug 22, 2022
Publication date	Mar 11, 2025
Grant date	Mar 11, 2025

Abstract

A method of producing a cementitious material includes combining a reaction mixture to form a slurry and curing the slurry to form the cementitious material. The reaction mixture may include a mineral mixture, an organic compound, and CO 2 . The mineral mixture may include calcium and the organic compound may be 3,4-dihydroxyphenethylamine, methyl salicylate, or both.

First claim

What is claimed is:

1. A method of producing a cementitious material, the method comprising:
combining a reaction mixture to form a slurry, and
curing the slurry to form the cementitious material; wherein
the reaction mixture comprises NH 4 OH, a calcium salt, an organic compound, and CO 2 ; and
the organic compound comprises one or both of 3,4-dihydroxyphenethylamine and methyl salicylate.

2. The method of claim 1 , wherein the reaction mixture further comprises water.

3. The method of claim 1 , wherein the reaction mixture comprises at least one recycled material.

4. The method of claim 1 , wherein the mineral mixture is derived from seawater.

5. The method of claim 1 , wherein the mineral mixture further comprises one or more of, magnesium, lithium, sodium, or potassium.

6. The method of claim 1 , wherein the CO 2 is present as a gas, a supercritical fluid, or as inorganic carbons.

7. The method of claim 1 , wherein the cementitious material includes precipitated carbonates.

8. The method of claim 1 , wherein the slurry comprises from 20 to 90 wt. % of the mineral mixture, based on the total weight of the slurry.

9. The method of claim 1 , wherein the slurry comprises from 10 to 80 wt. % of the CO 2 , based on the total weight of the slurry.

10. The method of claim 1 , wherein the slurry comprises from 10 to 50 wt. % of the organic compound, based on the total weight of the slurry.

11. The method of claim 1 , wherein the slurry comprises from 20 to 90 wt. % of the mineral mixture, from 10 to 80 wt. % of the CO 2· and from 10 to 50 wt. % of the organic compound, based on the total weight of the slurry.

12. The method of claim 1 , wherein the ratio of the organic compound to the mineral mixture is from 10:90 to 90:10.

13. The method of claim 1 , wherein curing the slurry comprises heating the cement slurry to a curing pressure of from 200 psi to 2,000 psi and (make ranges) a curing temperature of from 22° C. to 200° C.

14. The method of claim 1 , wherein the slurry comprises water and a pH of the water is from 7.8 to 12.

15. A method of using the cementitious material of claim 1 , comprising:
introducing a casing string into a wellbore; and
injecting the slurry into an annular region; and
curing the slurry to form the cementitious material, wherein:
the casing string comprises casing pipe,
the casing string and a wellbore wall of the wellbore define the annular region between the casing string and the wellbore wall, and
curing the slurry to form the cementitious material further comprises allowing the slurry to cure within the annular region.

16. The method of claim 15 , further comprising injecting the slurry into a subsurface formation, and wherein:
curing the slurry to form the cementitious material further comprises allowing the slurry to cure within the subsurface formation.

17. A method of producing a cementitious material, the method comprising:
combining a reaction mixture to form a slurry; and
curing the slurry to form the cementitious material, wherein
the reaction mixture comprises a mineral mixture, an organic compound, CO 2 , and NH 4 OH, and
the organic compound comprises one or both of 3,4-dihydroxyphenethylamine and methyl salicylate.

18. The method of claim 17 , wherein the mineral mixture is derived from seawater or comprises one or more of calcium, magnesium, lithium, sodium, or potassium.

19. A method of producing a cementitious material, the method comprising:
combining a reaction mixture to form a slurry; and
curing the slurry to form the cementitious material, wherein
the reaction mixture comprises a mineral mixture, an organic compound, CO 2 , and an ammonium compound,
the mineral mixture is derived from seawater or comprises one or more of calcium, magnesium, lithium, sodium, or potassium, and
the organic compound comprises one or both of 3,4-dihydroxyphenethylamine and methyl salicylate.

20. The method of claim 19 , wherein the ammonium compound comprises NH 4 OH.

Assignees

• Saudi Arabian Oil Co

Inventors

• Contreras Elizabeth Q

Classifications

• C04B40/0091

  Processes of mixing characterised by carbon dioxide treatment · CPC title

• C04B2111/00019

  Carbon dioxide sequestration · CPC title

• C04B24/122

  Hydroxy amines · CPC title

• E21B33/14

  for cementing casings into boreholes · CPC title

• C04B28/00

  Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements · CPC title