Method for sealing a void in a well using smart gels
US11486223B2 · kind B2 · utility
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3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2020 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Oct 14, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/44
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Embodiments of the disclosure include swellable smart gel sealants and methods of using smart gel sealants. In certain embodiments, the smart gel sealants reversibly swell when exposed to a certain trigger, such as temperature or pH. In specific embodiments, the smart gel is disposed within voids in a well and triggered to swell in order to seal the voids. One application of the smart gel sealant is to seal the casing of a well against the leakage of gas, such as H2S.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.