Foaming agents for use in drilling for oil and gas
US4425243A · kind A · utility
5Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1982 |
| Grant date | Jan 10, 1984 |
| Priority date | — |
| Expiry date | Oct 21, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/07
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Foaming agents for use in oil and gas production comprising n-octyl dimethylamine oxide, n-decyl dimethylamine oxide, branched decyl dimethylamine oxide, and mixtures thereof, all of which generate copious quantities of stable foam even in the presence of brine and hydrocarbons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.