Enhanced oil recovery
US4353805A · kind A · utility
13Cited by
10References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1979 |
| Grant date | Oct 12, 1982 |
| Priority date | — |
| Expiry date | Nov 29, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/936
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Application, for the enhanced oil recovery by means of an aqueous solution, of an agent capable of increasing the viscosity of the solution. Said agent consists of a mixture of a xanthan salt of a trivalent metal, iron or aluminum, with a complexant for the ion of the trivalent metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.