Methods, aqueous well treating fluids and friction reducers therefor
US6784141B1 · kind B1 · utility
19Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2003 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Apr 21, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/922
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to methods, aqueous treating fluids and friction pressure reducers for the treating fluids. A treating fluid of the invention comprises water and a non-toxic environmentally acceptable friction pressure reducer comprising a mixture of a copolymer of acrylamide and dimethylaminoethyl acrylate quaternized with benzyl chloride and a stabilizing and dispersing homopolymer of ethanaminium,N,N,N-trimethyl-2-[(1,oxo-2-prbpenyl)oxy]-chloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.