Method for treating the area surrounding a well using an aqueous gelling solution comprising an alkaline potassium silicate solution and an acetic acid
US11028310B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Feb 15, 2017 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Oct 7, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the treatment of the area (10) surrounding a well (1) in which an aqueous gelling solution comprising an alkaline potassium silicate solution and an acetic acid is prepared and then injected into a subterranean formation. This aqueous gelling solution makes it possible, by virtue of these gelling properties, to block the area (10) surrounding the well (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.