High viscosity well treating fluids, additives and methods
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United States of America Patent
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Jun 2, 1998
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N/A
app pub date -
Sep 28, 1994
filing date -
Sep 28, 1994
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Abstract
Improved high viscosity well treating fluids for use at temperatures above about 200.degree. F., gel breaking additives for the treating fluids and methods of using the treating fluids are provided by the present invention. The high viscosity well treating fluids are basically comprised of an aqueous liquid, a polysaccharide gelling agent to increase the viscosity of the aqueous liquid and a gel breaker comprised of a bromate ion releasing compound to reduce the viscosity of the aqueous liquid after a desired period of time.
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