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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Feb 14, 2012
Grant Date -
Jul 16, 2009
app pub date -
Jan 16, 2008
filing date -
Jan 16, 2008
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Abstract
An embodiment of the present invention includes a method comprising introducing a cyclodextrin modifier into a well bore penetrating a subterranean formation. Another embodiment of the present invention includes a method of reducing viscosity of a treatment fluid comprising contacting a treatment fluid comprising a base fluid and a viscosifying agent with at least a cyclodextrin modifier wherein the cyclodextrin modifier interacts with the viscosifying agent to reduce viscosity of the treatment fluid. Another embodiment of the present invention includes a method of increasing viscosity of an aqueous fluid comprising contacting at least a hydrophobically modified polymer and a cyclodextrin modifier in the presence of at least the aqueous fluid, wherein the cyclodextrin modifier interacts with the hydrophobically modified polymer to viscosify the aqueous fluid. Another embodiment of the present invention includes a subterranean treatment fluid comprising a base fluid and a cyclodextrin modifier.
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