Oil recovery process using a treated polymer solution
US4867239A · kind A · utility
1Cited by
14References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1988 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Aug 31, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/936
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A polymer solution makeup water containing hydrogen sulfide is pretreated with an oxygenating agent to convert the hydrogen sulfide to an inert compound. The treated water is then mixed with an acrylamide polymer to form a stable polymer solution for oil recovery applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.