Volcanic ash-based drilling mud to overcome drilling challenges
US8563479B2 · kind B2 · utility
42Cited by
12References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2010 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Mar 11, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/145
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Drilling mud compositions and related methods are provided as embodiments of the present invention. The drilling mud compositions are water-based and contain volcanic ash. The compositions and methods of the present invention provide improved properties relative to tolerance of high salt content, cement, lime, and temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.