Conformance improvement in a subterranean hydrocarbon-bearing formation using a crosslinked polymer
US4744419A · kind A · utility
17Cited by
18References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1986 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Dec 9, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/50
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Conformance improvement is achieved in a subterranean hydrocarbon-bearing formation using a gel comprising a high molecular weight, water-soluble, carboxylate-containing polymer, a chromium III/carboxylate complex capable of crosslinking the polymer and an aqueous solvent. The gel components are combined at the surface and injected into the desired treatment zone via a wellbore to form a continuous single-phase gel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.