Polysaccharide treatment fluid and method of treating a subterranean formation
US8367589B2 · kind B2 · utility
4Cited by
31References
8Claims
0Family size
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Key dates
| Filing date | Jun 20, 2008 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Dec 23, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A treatment fluid for treating a subterranean formation penetrated by a wellbore is formed from an aqueous medium, a diutan heteropolysaccharide having a tetrasaccharide repeating unit in the polymer backbone and a peroxide breaker. A method of treating a subterranean formation penetrated by a wellbore may be carried out by introducing the treatment fluid into the formation through the wellbore. Breaking aids or catalysts may also be used with the treatment fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.