Pre-engineered pills for the improvement of drilling muds
US7772161B2 · kind B2 · utility
0Cited by
18References
4Claims
0Family size
Inventor
Key dates
| Filing date | Nov 7, 2006 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Dec 28, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/516
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to the use of pre-engineered pills for use with drilling mud. By introducing pills of ground elastomer into the well, the pills can improve the lubricity of the mud as well as aiding in wellbore cleaning, prevention of bit balling and reduction of fluid loss to thief zones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.