Methods and compositions for altering the viscosity of treatment fluids used in subterranean operations
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United States of America Patent
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Nov 4, 2014
Grant Date -
May 10, 2012
app pub date -
Jan 4, 2012
filing date -
Jan 16, 2008
priority date (Note) -
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Abstract
Methods of decreasing the viscosity of a treatment fluid through contact with a cyclodextrin modifier. Such methods include providing a cyclodextrin modifier; providing a treatment fluid that comprises a base fluid and a viscosifying agent wherein the viscosifying agent is selected from the group consisting of a hydrophobically modified polymer, a viscoelastic surfactant, a phosphonate surfactant, or a combination thereof; and, introducing the cyclodextrin modifier and the treatment fluid into a well bore penetrating a subterranean formation wherein the viscosity of the treatment fluid is decreased due to the combination of the hydrophobically modified polymer and the cyclodextrin modifier.
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