Efficiency of polyglycerol with other additives to remove water from shale
US5686396A · kind A · utility
14Cited by
9References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1996 |
| Grant date | Nov 11, 1997 |
| Priority date | — |
| Expiry date | Dec 30, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition and process for improving the osmotic efficiency of a shale during the drilling of a well with a drilling fluid containing polyglyerol with other additives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.