Scale and corrosion inhibitors for high temperature and pressure conditions
US8158561B2 · kind B2 · utility
1Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2010 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Aug 13, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/939
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The present invention relates to a method for inhibiting scale and corrosion in aqueous systems, for example, under high temperature and pressure conditions such as temperatures up to 250° C. and/or pressures up to 10000 psi (i.e., about 68.9 MPa). The method involves providing polymer compositions comprising 1% to 100% by weight of a phosphorus-containing amide monomer to such aqueous systems, which arise, for example, in connection with oilfield operations and some water treatment applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.