Hydrating swellable clays
US10703676B2 · kind B2 · utility
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3References
12Claims
0Family size
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Key dates
| Filing date | Oct 13, 2016 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Oct 13, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method may comprise: mixing a water having hardness at about 300 ppm or greater with a plurality of particulates, a swellable clay, a chelating agent at about 0.01% to about 5% by weight of the water (BWOW), and an alkali metal base at about 0.01% to about 5% BWOW to produce a treatment fluid; and introducing the treatment fluid into a wellbore penetrating a subterranean formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.