High temperature guar-based fracturing fluid
US4801389A · kind A · utility
114Cited by
16References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1987 |
| Grant date | Jan 31, 1989 |
| Priority date | — |
| Expiry date | Aug 3, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/922
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A fracturing fluid based on quar gum exhibiting good viscosity and stability at temperatures from about 80.degree. C. to at least about 120.degree. C. The fracturing fluid includes a guar gum, a zirconium or hafnium cross-linking agent, and a bicarbonate salt in an aqueous solution at a pH from about 8 to about 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.