Foaming and silt suspending agent
US4113631A · kind A · utility
111Cited by
11References
45Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 10, 1976 |
| Grant date | Sep 12, 1978 |
| Priority date | — |
| Expiry date | Aug 10, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/933
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A foaming and silt suspending agent is disclosed containing at least one alkyltrimethylammonium chloride and an amine oxide selected from the group consisting of bis-(2-hydroxyethyl) cocoamine oxide, dimethylhexadecylamine oxide, and dimethyl-hydrogenated tallowamine oxide. The agent is particularly useful in a variety of aqueous based fluids of the type used in treating subterranean formations, including fluids containing other cationic additives such as certain acid inhibitors and clay stabilization agents which tend to impair the effectiveness of prior art agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.