Enhancing gel strength
US6011075A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 1998 |
| Grant date | Jan 4, 2000 |
| Priority date | — |
| Expiry date | Feb 2, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/518
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition adapted to form a strengthened gel for treating subterranean formations is described, the composition comprising an aqueous liquid containing an effective amount of a water soluble crosslinkable polymeric gel forming material and a crosslinking agent in an amount sufficient to crosslink said material, and a gel strengthening amount of an inert colloidal particulate material. A method for forming a strengthened gel in at least a portion of a subterranean formation is also disclosed, the method comprising injecting into at least a portion of a formation an aqueous liquid gel forming composition of the type described, and allowing the aqueous liquid composition to form a strengthened gel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.