Methods of producing particles having two different properties
US10358595B2 · kind B2 · utility
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28Claims
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Key dates
| Filing date | Jun 5, 2014 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Aug 1, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/13
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of producing particles comprising: (A) providing a plurality of particle cores, wherein the cores have at least a first property; (B) partially or fully coating the outer surface of the cores with a substance, wherein the substance has a second property, and wherein the second property is different from the first property; and (C) reducing the particle size of the coated particles, wherein the core is exposed after the step of reducing. A method of using particles comprising: introducing a treatment fluid into an area to be treated, wherein the treatment fluid comprises: (i) a base fluid; and (ii) the particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.