Polyaromatic hydrocarbon-based host-guest complex for heavy crude oil viscosity reduction
US11649397B1 · kind B1 · utility
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24Claims
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Key dates
| Filing date | Jul 27, 2022 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Jul 27, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/524
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This disclosure relates to water-soluble viscosity reducer complexes for use in reducing the viscosity of heavy oil in oil recovery operations. The viscosity reducer complexes contain a hydrophilic component of polyaromatic-hydrocarbon-based polymers and a hydrophilic component of cyclodextrin-based polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.