Method for reducing friction loss in a well fracturing process
US4152274A · kind A · utility
65Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1978 |
| Grant date | May 1, 1979 |
| Priority date | — |
| Expiry date | Feb 9, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0391
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of reducing friction loss in oil well fracturing through the addition of small amounts of copolymers of acrylamide and quaternary salts of dimethylaminoethyl methacrylate and dimethylaminopropyl methacrylamide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.