Method of drilling wells employing water base drilling fluids
US3953337A · kind A · utility
38Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1973 |
| Grant date | Apr 27, 1976 |
| Priority date | — |
| Expiry date | Nov 16, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/22
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Method of and composition for the treatment of an aqueous drilling fluid containing contaminating amounts of salt whereby the rheological properties of the aqueous fluid are improved by treatment with a polyethylene glycol in the molecular weight range of from about 200 to 500.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.