Chemical imbibition by gels containing surfactants for fractured carbonate reservoirs
US10927290B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2016 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Feb 15, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An imbibition gel composition that induces spontaneous imbibition of a water phase into a reservoir matrix is provided. The imbibition gel composition including a surfactant, the surfactant operable to alter the wettability of a surface of a reservoir matrix from oil-wet toward water-wet and the surfactant further operable to diffuse through the water phase. The imbibition gel composition further including a gel system, the gel system operable to retain the surfactant and the gel system further operable to release the surfactant in the presence of the water phase, where altering the wettability of the surface of the reservoir matrix toward water-wet induces the spontaneous imbibition of the water phase into the reservoir matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.