Friction modifier for drilling fluids
US8003576B2 · kind B2 · utility
0Cited by
3References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 2009 |
| Grant date | Aug 23, 2011 |
| Priority date | — |
| Expiry date | Dec 16, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/34
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention relates to improved lubrication in drilling and completion fluids used in subterrane drilling for oil and gas. The addition of zinc dialkyl dithiophosphate (ZDDP) acts as a lubricant, an enhancer to other lubricants and rate of penetration enhancer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.