Reduction of viscosity of aqueous fluids

Details Reduction of viscosity of aqueous fluids Reduction of viscosity of aqueous fluids

E - Fixed Constructions

21

B

31/66

E21B 43/25 (2006.01) C09K 8/62 (2006.01) C09K 8/88 (2006.01)

Patent

CA 1272588

ABSTRACT OF THE DISCLOSURE The viscosity of thickened aqueous solutions of water- -soluble polymers is reduced by the addition of alkali metal and alkaline earth metal salts of hypochlorous acid and tertiary amines. The combination of the salt and the tertiary amine is much more efficient in speed of reduction in viscosity and in the completeness of the degradation of the polymer than the use of the metal salt alone. The process of this invention is particularly useful in fracturing of oil wells.

522525

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