Viscosified treatment fluids comprising polycarboxylic acid gelling agents and associated methods
US7325615B2 · kind B2 · utility
6Cited by
15References
20Claims
0Family size
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Key dates
| Filing date | May 2, 2005 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Oct 27, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel polycarboxylic acid copolymer gelling agents and viscosified treatment fluids comprising these gelling agents, and their associated methods of use and manufacture are provided. In one embodiment, a method comprising: providing a viscosified treatment fluid comprising an aqueous base fluid, and a gelling agent that comprises a polymerizable polycarboxylic acid and that is at least partially crosslinked by a crosslinking reaction comprising a crosslinking agent; and introducing the viscosified treatment fluid into a subterranean formation is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.