Foamed fracturing fluids, additives and methods of fracturing subterranean zones
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United States of America Patent
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Sep 24, 2002
Issued Date -
N/A
app pub date -
Mar 8, 2002
filing date -
Oct 25, 2000
priority date (Note) -
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Abstract
The present invention provides environmentally safe foamed fracturing fluids, additives for foaming and stabilizing foamed fracturing fluids and methods of fracturing subterranean zones. The foamed fracturing fluids of this invention are basically comprised of water, a gelling agent for forming the water into gelled water and increasing the viscosity thereof, sufficient gas to form a foam, and an effective amount of an additive for foaming and stabilizing the gelled water comprised of hydrolyzed keratin.
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