Breaker and displacement fluid
US10253242B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Nov 15, 2016 |
| Grant date | Apr 9, 2019 |
| Priority date | — |
| Expiry date | Nov 15, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/32
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A breaker fluid for breaking a filtercake in a wellbore. The fluid including a hydrolysable ester of carboxylic acid, and a chelant, an alkyl glycoside, or a combination thereof. The breaker fluid may be pre-mixed and include an amount of water less than required to completely hydrolyze the ester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.