Emulsifier based on polyamines and fatty acid/maleic anhydride
US8163675B2 · kind B2 · utility
27Cited by
14References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2005 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Sep 21, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K23/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention generally relates to a polyamide emulsifier, to a drilling fluid composition that comprises said emulsifier and to a method of drilling a borehole into a subterranean formation utilizing the drilling fluid composition of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.