Polymer composition for inhibiting the formation of inorganic and/or organic deposits in underground formations
US10072202B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2013 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Jul 26, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to compositions for inhibiting the formation of deposits in underground formations such as oil wells, comprising, in a solvent medium, polymers P resulting from the radical copolymerization, preferably controlled and in solution, of a mixture including: monomers having an ethylenically unsaturated structure, selected from monomers that form, by polymerization, a polymer that has an effect of inhibiting the formation of organic and/or inorganic deposits; and polyethylenically unsaturated, cross-linking monomers carrying at least one group that can be cleaved between two ethylene unsaturations, said polymers P being present in the solvent in the form of dispersed nanogels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.