Stabilized colloidal and colloidal-like systems
US7037881B2 · kind B2 · utility
12Cited by
15References
6Claims
0Family size
Inventors
Key dates
| Filing date | Feb 3, 2004 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Feb 3, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/514
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention generally relates to improved compositions comprising stabilized colloidal or colloidal-like phases (e.g., emulsions, aphrons) and methods of using those compositions. The compositions generally comprise an aqueous continuous phase, one or more viscosifiers, one or more surfactants, aphrons and one or more Aphron Stabilizers. The compositions of the present invention possess aphrons with significantly increased half-life and enhanced ability to seal permeable formations, and are capable of being used in high pressure applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.