Foamed gels having selective permeability
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United States of America Patent
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Apr 20, 1993
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N/A
app pub date -
Feb 28, 1992
filing date -
Dec 21, 1990
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Abstract
Pathway-containing foamed gels enhance the recovery of the nonaqueous fluids from subterranean formations by selectively reducing the flow of aqueous fluids with respect to the flow of nonaqueous fluids.
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