Hydrophobically and cationically modified relative permeability modifiers and associated methods
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United States of America Patent
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Apr 16, 2013
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Feb 10, 2011
app pub date -
Aug 10, 2009
filing date -
Aug 10, 2009
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Abstract
Methods comprising introducing a hydrophobically and cationically modified relative permeability modifier into a portion of a subterranean formation. The hydrophobically and cationically modified relative permeability modifier comprises a hydrophilic polymer backbone with a hydrophobic modification and a cationic modification. The cationic modification may comprise at least one cationic compound comprising an alkyl chain length of from 1 to 3 carbons.
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