Re-crosslinkable particle for conformance control and temporary plugging
US12247156B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2020 |
| Grant date | Mar 11, 2025 |
| Priority date | — |
| Expiry date | Oct 18, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/514
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention generally relates to the composition of particle gels for conformance control, well drilling and well treatments. More particularly, this invention relates to swellable polymer particle gels that can re-crosslink, i.e., reassociate and self-heal, at subterranean conditions. These particle gels can be deployed to improve the conformance of water flooding of especially matrix bypass events (MBEs), that are also known as void space conduits. Moreover, these particle gels can be deployed for controlling the water production and increasing of petroleum recovery. The inventive particles can also be deployed as diverter for well stimulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.