Non-aqueous slurries used as thickeners
US4566977A · kind A · utility
39Cited by
6References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1985 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Feb 28, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/935
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Described herein is an improved non-aqueous slurry suitable for use as a thickener or viscosifier in oil or gas drilling, fracturing, flow diversion, completion or workover fluids, which slurry comprises a water-soluble cellulose ether polymer, a water-insoluble liquid hydrocarbon, a non-ionic surfactant having an HLB of from about 7 to about 14, and an organo modified clay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.