Compositions – Leather or fur treating
Patent
1989-04-07
1991-03-05
Suchfield, George A.
Compositions
Leather or fur treating
166307, 166282, E21B 4327
Patent
active
049975820
ABSTRACT:
Methods and compositions for acid treating subterranean formations penetrated by well bores are provided. The compositions are each comprised of an aqueous acid solution, one or more acrylamide polymers dissolved in the acid solution, a liquid hydrocarbon dispersed in the acid solution, and one or more nonionic surface active agents having at least one reactive hydroxyl group per molecule. The acrylamide polymer or polymers increase the viscosity of the acid solution and the surface active agent or agents interact with the polymer of polymers whereby stabilized high viscosity results. The subterranean formation acid treating methods of the invention are carried out by introducing the high viscosity acid compositions therein, allowing the compositions to react until spent and recovering the compositions.
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Clark, Jr. Earl
Swanson Billy L.
Phillips Petroleum Company
Suchfield George A.
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