Memory effect tracer fluids for the study of an oil reservoir
US-2015001385-A1 · Jan 1, 2015 · US
Nanoparticle-based shear-thickening materials
US10480281B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10480281-B2 |
| Application number | US-201715812720-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 14, 2017 |
| Priority date | Nov 15, 2016 |
| Publication date | Nov 19, 2019 |
| Grant date | Nov 19, 2019 |
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- Title
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Abstract
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A composition includes an aqueous colloidal dispersion of a nanomaterial. The nanomaterial includes, disposed on a surface of the nanomaterial, a first coupling agent including silane and a functional group including an amino acid. The nanomaterial includes, disposed on the surface of the nanomaterial, a second coupling agent including silane and a polymer with a molecular weight between 1,000 and 20,000.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: introducing an aqueous colloidal dispersion to a subterranean zone, wherein the aqueous colloidal dispersion is a shear thickening material, and the aqueous colloidal dispersion comprises a plurality of silica nanoparticles, each of the plurality of silica nanoparticles comprising: a first coupling agent disposed on a surface of the silica nanoparticle, the first coupling agent comprising silane and a functional group comprising an amino acid; and a second coupling agent disposed on the surface of the silica nanoparticle, the second coupling agent comprising silane and a polymer with a molecular weight between 1,000 and 20,000; and applying shear to the aqueous colloidal dispersion, thereby causing (i) the second coupling agent on each of the silica nanoparticles to collapse and (ii) the first coupling agent on each of the silica nanoparticles to bond with the first coupling agent on the neighboring silica nanoparticles, resulting in an increase in a viscosity of the aqueous colloidal dispersion. 2. The method of claim 1 , wherein a ratio between the first coupling agent and the second coupling agent disposed on the surface of the silica nanoparticle is between 1:1 and 20:1. 3. The method of claim 1 , further comprising mixing the aqueous colloidal dispersion with a cement before introducing the aqueous colloidal dispersion to the subterranean zone. 4. The method of claim 1 , wherein applying the shear on the aqueous colloidal dispersion causes the viscosity of the aqueous colloidal dispersion to reversibly increase by a factor of 1.1 to 3. 5. The method of claim 1 , wherein heating the aqueous colloidal dispersion to above 90° C. causes the viscosity of the aqueous colloidal dispersion to reversibly increase by a factor of 1.5 to 15.
Assignees
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Classifications
containing additives for specific purposes · CPC title
Premixtures of ingredients · CPC title
- C04B24/42Primary
Organo-silicon compounds · CPC title
containing organic compounds · CPC title
containing hydraulic cements other than calcium sulfates · CPC title
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- What does patent US10480281B2 cover?
- A composition includes an aqueous colloidal dispersion of a nanomaterial. The nanomaterial includes, disposed on a surface of the nanomaterial, a first coupling agent including silane and a functional group including an amino acid. The nanomaterial includes, disposed on the surface of the nanomaterial, a second coupling agent including silane and a polymer with a molecular weight between 1,000 …
- Who is the assignee on this patent?
- Saudi Arabian Oil Co, Massachusetts Inst Technology
- What technology area does this patent fall under?
- Primary CPC classification C04B24/42. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 19 2019 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).