Spotting fluid compositions and associated methods
US8048829B2 · kind B2 · utility
4Cited by
22References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2005 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | May 17, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/32
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Fluids and associated methods useful in subterranean applications are provided. Compositions are provided that may be useful in subterranean applications for addressing, among other things, drill string sticking problems. More particularly, spotting fluid compositions are provided having a water insoluble external phase fluid; a water soluble internal phase fluid; and an ether carboxylic acid emulsifying agent. Additional optional components may be used, such as viscosifiers, weighting agents, and wetting agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.