Deoxygenation in field preparation of polymers in aqueous solution
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United States of America Patent
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Mar 24, 1992
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N/A
app pub date -
Aug 14, 1989
filing date -
Aug 14, 1989
priority date (Note) -
Expired
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Abstract
In a process for polymerizing monomers with free-radical initiators in aqueous solution to produce polymers useful in oil field applications, wherein said polymerization process employs an oxygen-scavenging agent, the improvement which comprises employing said oxygen scavenging agent and oxidase enzyme with a substrate therefor, optionally with a catalase, such as alcohol oxidase and methanol, to consume dissolved oxygen in a polymerization admixture. Oxygen-scavenging under field conditions with the oxidase/substrate system permits consistent production conveniently of water based polymer solutions of good viscosity for oil field applications.
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