OXIDATIVE BREAKERS IN A SILICONE BASED SUSPENSION
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United States of America Patent
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Sep 18, 2014
app pub date -
Mar 14, 2013
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Mar 14, 2013
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Abstract
An oxidative breaker system for use in reducing the viscosity of a guar-based suspension includes a silicone oil carrier fluid, an oxidizer and a suspension aid. The suspension aid is preferably fumed silica. The oxidizer may be selected from the group consisting of alkali metal peroxide, transition metal peroxide, persulfate, bromide and bromate. In highly preferred embodiments, the oxidizer is magnesium peroxide or calcium peroxide. Also disclosed is a method for breaking a guar-based suspension with the inventive oxidative breaker system.
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