Compositions – Leather or fur treating
Patent
1989-11-29
1990-11-27
Stoll, Robert L.
Compositions
Leather or fur treating
252 8553, C09K 702, E21B 4300
Patent
active
049734105
ABSTRACT:
The production of oil or gas from a subterranean formation is enhanced by injecting into the formation, such as in acidized fracturing, an aqueous fluid containing as a viscosifier a crosslinked vinylamine polymer. Acidizing fluids are provided containing HCl and a viscosifying amount of a gel of the crosslinked polymer, preferably poly(vinylamine) crosslinked with a diisocyanate, a polyepoxide or epichlorohydrin.
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Pinschmidt, Jr. Robert K.
Vijayendran Bheema R.
Air Products and Chemicals Inc.
Marsh William F.
Rodgers Mark L.
Sayala Chhaya
Simmons James C.
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