Patent ID: 11920086
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  E | IPC C  E

Claim 10:
11. The method of claim 1, wherein the selecting comprises:
adding the friction reducer to a first portion of the water sample at at least 50% of its C* concentration;
performing a first friction loop test on the friction reducer in a first portion of the water sample to obtain first friction data;
combining another portion of the friction reducer with a first secondary oil at a test concentration to obtain a first secondary-oil-containing friction reducer;
performing a second friction loop test on the first secondary-oil-containing friction reducer in a second portion of the water sample to obtain second friction data;
combining an additional portion of the friction reducer with a second secondary oil at the test concentration to obtain a second secondary-oil-containing friction reducer;
performing a third friction loop test on the second secondary-oil-containing friction reducer in a third portion of the water sample to obtain third friction data; and
comparing at least the first friction data, second friction data, and third friction data.