In situ decomposition of carbonyls at high temperature for fixing incomplete and failed well seals
US8522872B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Oct 13, 2010 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Oct 31, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2103/0067
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods and systems relating to in situ decomposition of carbonyls at high temperature for fixing incomplete and failed well seals, are described. According to one embodiment, a method, comprises injecting a sealing agent into a subterranean well having sealing channels or voids in well casings. An alkaline-earth carbonate precipitate is formed from the decomposition of a carbonyl compound. The sealing agent includes the carbonyl compound and an alkaline-earth halide salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.