Method of extracting oil using a functional molecule
US11236593B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Apr 2, 2020 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Apr 2, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/25
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of extracting oil from a subsurface reservoir includes the steps of accessing the subsurface reservoir by means of a well, injecting a waterflooding composition comprising water and a functional molecule, into the subsurface reservoir through the well, altering the interfacial viscoelasticity, and extracting the oil through the well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.