Low residue well treatment fluids and methods of use
US7151076B2 · kind B2 · utility
6Cited by
31References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 8, 2004 |
| Grant date | Dec 19, 2006 |
| Priority date | — |
| Expiry date | Oct 8, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/922
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A low residue well treatment fluid comprises: an aqueous solvent; a gelling agent comprising one or more modified polysaccharides, the modified polysaccharides having hydrophilic groups; and a crosslinking composition. The fluid may optionally further comprise a gel breaker, a buffer and/or a proppant. The fluids generate no or minimal residue upon being broken, and are particularly useful in well fracturing operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.