Patent ID: 11927085
Assignee: QUIDNET ENERGY INC.
Field: Chemical engineering (Chemistry)
Classification: CPC C  E  F  B  Y | IPC E  F

Claim 0:
1. A method of controlling a quality of water used for storing and producing energy, comprising:
pumping the water down a well and into a hydraulic fracture in a rock formation around the well to store energy;
producing a portion of the water to provide a produced water up the well by reducing a pressure in the well before leak-off of the water from the hydraulic fracture;
measuring an amount of dissolved solid in the produced water to obtain a measured quality;
comparing the measured quality to a desired quality to obtain a compared quality;
diverting a first portion of the produced water to a treating process to produce treated water, wherein the first portion is determined based on the compared quality;
producing energy to provide a produced energy from a second portion of the produced water, wherein the second portion comprises the produced water less the first portion of produced water;
combining the treated water with the second portion of produced water to produce combined water comprising the desired quality; and
pumping the combined water down the well and into the hydraulic fracture in the rock formation around the well to store energy.