Dual purpose viscosifier-scale inhibitors for use in subterranean formation operations
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United States of America Patent
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Jul 11, 2017
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app pub date -
Nov 22, 2013
filing date -
Nov 22, 2013
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Abstract
Embodiments described herein include a method comprising: providing a treatment fluid comprising an aqueous base fluid, a viscosifier-scale inhibitor agent, and a breaker, wherein the viscosifier-scale inhibitor agent comprises a polysaccharide gelling agent grafted with a chelating moiety; introducing the treatment fluid into a subterranean formation, wherein the polysaccharide gelling agent increases the viscosity of the treatment fluid and the chelating moiety remains inert; breaking treatment fluid with the breaker so as to reduce the viscosity of the treatment fluid and chemically release the chelating moiety from the polysaccharide gelling agent; and inhibiting scale within the subterranean formation using the chelating moiety.
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