Method and compositions for acidizing and fracturing wells
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United States of America Patent
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Oct 9, 1984
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N/A
app pub date -
Jul 30, 1982
filing date -
Jul 30, 1982
priority date (Note) -
Expired
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Abstract
Gelled-acid compositions suitable for matrix-acidizing or fracture-acidizing of subterranean formations and methods of using the composition in these operations are provided wherein the compositions comprise water, water-dispersible acrylamide-derived polymer, an acid and an aldehyde precursor which hydrolyzes in aqueous acid media to produce aldehydes which in turn react with the polymer and gels the resulting mixture.
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