Well treatment fluids containing an ylide or a vitamin B and methods of using the same
US9090814B2 · kind B2 · utility
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10References
23Claims
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Key dates
| Filing date | Aug 9, 2012 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Jul 6, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Viscosifying polymers are effectively degraded during a well treatment operation with an ylide breaker or a vitamin B cofactor. The vitamin B cofactor is an ylide, vitamin B1, vitamin B2, vitamin B3, vitamin B6, vitamin B9 or vitamin B12 or mixtures thereof. Such breakers are effective at room and elevated temperatures and high pH environments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.