Patent ID: 9580640
Date: 2017-02-28
CPC Classifications: B01F,C09K,E21B,G05D

Claim:
1. A system for blending fluids for hydraulic fracturing, comprising: a blending chamber with a fresh water inlet line and a produced fluid inlet line for blending fresh water and produced fluid to produced blended water, said fresh water inlet line comprising a fresh water pump, a fresh water inlet line flow meter, and a fresh water inlet line sample point, and said produced water inlet line comprising a produced fluid pump, a produced water inlet line flow meter, and a produced water inlet line sample point; a blended water outlet line, said blended water outlet line comprise an outlet line sample point; wherein the fresh water flows at a fresh water flow rate in said fresh water inlet line, the produced fluid flows at a produced fluid flow rate in said produced fluid inlet line, and the blended water flows at a blended water flow rate in said blended water outlet line; wherein the relative proportions of fresh water and produced fluid entering the blending chamber are controlled by adjusting the fresh water flow rate and produced fluid flow rate, respectively; and further wherein the relative proportions of fresh water and produced fluid are determined based upon a target Potassium Chloride Equivalency value or range for the blended water.