Production of a polyacrylamide solution used in an oil recovery process
US4633947A · kind A · utility
2Cited by
11References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 1985 |
| Grant date | Jan 6, 1987 |
| Priority date | — |
| Expiry date | May 23, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/938
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for producing an aqueous partially hydrolyzed polyacrylamide solution employed to recover oil from a subterranean oil-bearing formation. The properties of viscosity and screen factor for an aqueous polymer solution are correlated to the polymerization reaction parameters. Values of the parameters are selected which correlate to the specific predetermined polymer properties capable of meeting the performance demands of the formation and the aqueous partially hydrolyzed polyacrylamide solution is produced at the selected values of the reaction parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.