Methods including functionalizing nanoparticles and forming suspensions

Patent metadata

Field	Value
Publication number	US-11305251-B2
Application number	US-202016921386-A
Country	US
Kind code	B2
Filing date	Jul 6, 2020
Priority date	Mar 29, 2018
Publication date	Apr 19, 2022
Grant date	Apr 19, 2022

Abstract

A composition of matter includes a liquid and nanoparticles suspended in the liquid. The nanoparticles each include silica, alumina, and an organosilicon functional group having a molecular weight of at least 200. A method includes functionalizing a surface of nanoparticles with an organosilicon functional group and dispersing the nanoparticles in a liquid to form a suspension. The functional group has a molecular weight of at least 200. The nanoparticles each include silica and alumina at a surface thereof.

First claim

What is claimed is:

1. A method, comprising:
functionalizing nanoparticles with an organosilicon functional group, the nanoparticles each comprising silica and alumina, the organosilicon functional group formed from (3-glycidyloxypropyl)trimethoxysilane (GLYMO); and
forming a suspension of the nanoparticles in a liquid.

2. A method, comprising:
functionalizing nanoparticles with an organosilicon functional group, the functionalizing comprising functionalizing the nanoparticles with (3-glycidyloxypropyl)trimethoxysilane (GLYMO), the nanoparticles each comprising silica and alumina; and
forming a suspension of the nanoparticles in a liquid.

3. The method of claim 1 , wherein forming a suspension of the nanoparticles in a liquid comprises dispersing the nanoparticles in an aqueous medium.

4. The method of claim 1 , further comprising modifying an exposed surface of silica nanoparticles to form the nanoparticles comprising silica and aluminum.

5. The method of claim 4 , wherein modifying an exposed surface of silica nanoparticles comprises replacing a silanol group with Al—OH.

6. The method of claim 1 , wherein functionalizing a surface of nanoparticles with an organosilicon functional group comprises reacting the nanoparticles with the organosilicon functional group in the presence of ethanol and water.

7. The method of claim 1 , wherein functionalizing a surface of nanoparticles with an organosilicon functional group comprises reacting the nanoparticles with the organosilicon functional group at a temperature of at least 50° C.

8. The method of claim 1 , wherein functionalizing a surface of nanoparticles with an organosilicon functional group comprises bonding the organosilicon functional group with silicon atoms of the nanoparticles.

9. The method of claim 1 , further comprising injecting the suspension into a subterranean well.

10. A method, comprising:
functionalizing nanoparticles with an organosilicon functional group, the nanoparticles each comprising silica and alumina;
forming a suspension of the nanoparticles in a liquid; and
maintaining the suspension at a temperature of at least 30° C. for a time period of at least 30 days while maintaining at least 90% of the nanoparticles in the suspension.

11. The method of claim 10 , further comprising forming the organosilicon functional group from (3-glycidyloxypropyl)trimethoxysilane (GLYMO).

12. The method of claim 10 , wherein functionalizing nanoparticles with an organosilicon functional group comprises functionalizing the nanoparticles with (3-glycidyloxypropyl)trimethoxysilane (GLYMO).

13. The method of claim 10 , wherein forming a suspension of the nanoparticles in a liquid comprises dispersing the nanoparticles in an aqueous medium.

14. The method of claim 10 , further comprising modifying an exposed surface of silica nanoparticles to form the nanoparticles comprising silica and aluminum.

15. The method of claim 14 , wherein modifying an exposed surface of silica nanoparticles comprises replacing a silanol group with Al—OH.

16. The method of claim 10 , wherein functionalizing a surface of nanoparticles with an organosilicon functional group comprises reacting the nanoparticles with the organosilicon functional group in the presence of ethanol and water.

17. The method of claim 10 , wherein functionalizing a surface of nanoparticles with an organosilicon functional group comprises reacting the nanoparticles with the organosilicon functional group at a temperature of at least 50° C.

18. The method of claim 10 , wherein functionalizing a surface of nanoparticles with an organosilicon functional group comprises bonding the organosilicon functional group with silicon atoms of the nanoparticles.

19. The method of claim 10 , further comprising injecting the suspension into a subterranean well.

Assignees

• Baker Hughes Holdings Llc

Inventors

• Suresh Radhika
• Agrawal Devesh K
• Kuznetsov Oleksandr V
• Mazyar Oleg A
• Khabashesku Valery N
• Darugar Qusai

Classifications

• C09K8/665

  containing inorganic compounds (proppants C09K8/80) · CPC title

• E21B43/16

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• C09D17/007

  Metal oxide · CPC title

• B82Y25/00

  Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance · CPC title

• C09K8/03 Primary

  Specific additives for general use in well-drilling compositions · CPC title