Alternating microsphere and smartwater injection for enhanced oil recovery
US11867039B2 · kind B2 · utility
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3References
15Claims
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Key dates
| Filing date | Jan 7, 2022 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | Jan 7, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/162
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for enhanced oil recovery in a reservoir is provided. The method includes injecting a microsphere suspension, including polymeric microspheres dispersed in seawater, into an injection well in the reservoir and injecting a low salinity tailored water (SmartWater) into the injection well in the reservoir. Oil is produced from a production well in the reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.