Patent ID: 9708562
Date: 2017-07-18
CPC Classifications: C09K,C10M,D21C

Claim:
1. A method of reducing the friction of an aqueous hydraulic fracturing fluid in turbulent flow in a conduit, the method comprising: preparing a formulation comprising glycerol and a water-in-oil emulsion, wherein the water-in-oil emulsion comprises a friction-reducing polymer in an aqueous phase of the water-in-oil emulsion; and adding the formulation to the aqueous hydraulic fracturing fluid while the fluid is in turbulent flow in the conduit, wherein the glycerol is present in the formulation in an amount effective to increase the rate of the inversion of the water-in-oil emulsion, and wherein the friction of the fluid in the conduit is reduced as compared to that in the absence of the glycerol.