Method of diluting a concentrated polymer solution for use in a hydrocarbon recovery process
US4778607A · kind A · utility
2Cited by
6References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1987 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Mar 17, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/936
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A water-soluble inorganic non-crosslinking salt is incorporated in an aqueous gel-like solution of a water-soluble uncrosslinked polymer at an initial higher polymer concentration. The salt accelerates the dilution of the polymer solution with an aqueous diluent to an aqueous polymer solution at a predetermined lower polymer concentration. The gel-like polymer solution is diluted without substantially degrading the polymer so that it retains desirable properties for use in a hydrocarbon recovery process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.