Water control in a subsurface formation
US7223827B1 · kind B1 · utility
3Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2004 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Jul 17, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/56
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition and a method of using the composition to adjust the permeability of a subsurface formation is disclosed. The composition is a water insoluble gel made by cross linking a water soluble polymer. The water soluble polymer is made by polymerizing a precursor composition, wherein the precursor composition is a mixture of an acrylic acid compound and a reactant comprised of a divalent metal salt of the acrylic acid compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.