Amino resin modified xanthan polymer gels for permeability profile control
US4716966A · kind A · utility
37Cited by
11References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 24, 1986 |
| Grant date | Jan 5, 1988 |
| Priority date | — |
| Expiry date | Oct 24, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/514
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition of matter wherein amino resins such as melamine formaldehyde ("MF") resins modify biopolymers thereby forming gels with transitional metal ions useful for profile control where said polymers have amine, amide, hydroxyl and thiol functionalities. Said gels are thermally stable, brine tolerant and rehealable. Said resin modified biopolymers can be used in their liquid or ungelled state as a mobility control agent in a reservoir during the removal of hydrocarbonaceous fluids therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.