Hydrophobically modified polymers for water control
US6803348B2 · kind B2 · utility
38Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2000 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Nov 16, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2810/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The use of a hydrophobically modified water soluble polymer is described capable of being chemically cross-linked so as to produce a stable gel for blocking a water-bearing formation from a hydrocarbon-producing well. The polymer is essentially linear having hydrophilic side groups located at random positions along its backbone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.