Methods useful for controlling fluid loss in subterranean treatments
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United States of America Patent
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Jan 21, 2014
Grant Date -
Sep 15, 2005
app pub date -
Apr 8, 2005
filing date -
May 16, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
Provided are methods of using fluid loss control additives that comprise a water-soluble polymer with hydrophobic or hydrophilic modification. In one embodiment, a method of providing at least some degree of fluid loss control during a subterranean treatment is provided. In an example of such a method, the method may comprise providing a treatment fluid comprising an aqueous liquid and a fluid loss control additive, the fluid loss control additive comprising a water-soluble polymer with hydrophobic or hydrophilic modification; and introducing the treatment fluid into a well bore that penetrates a subterranean formation, wherein there is at least a partial reduction in fluid loss into at least a portion of the subterranean formation from the treatment fluid and/or another aqueous fluid introduced into well bore subsequent to the treatment fluid.
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