Halloysite nanotubes for slow release asphaltene control chemical squeeze treatments
US12173229B2 · kind B2 · utility
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20Claims
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Assignee
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Key dates
| Filing date | Dec 21, 2021 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Dec 21, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present disclosure provides methods and compositions for controlling asphaltenes in a subterranean formation. The compositions may include a halloysite nanotube. The nanotube has a lumen and a polymer, along with a charged surfactant, may be disposed in the lumen. A wax may be disposed on the nanotube. The wax may be disposed at either or both ends of the nanotube, thereby temporarily preventing the polymer and charged surfactant from leaving the lumen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.