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Portable water treatment system and apparatus

  • US 8,211,296 B2
  • Filed: 04/09/2010
  • Issued: 07/03/2012
  • Est. Priority Date: 04/09/2010
  • Status: Expired due to Fees
First Claim
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1. A portable frac water treatment and management system for in-line use downstream of a frac water supply and upstream of a plurality of frac tanks disposed at a well site, the system comprising:

  • at least one programmable controller;

    at least one primary fluid flow line having at least one inlet end and at least one outlet end, the at least one inlet end having a first coupling device attachable in fluid communication with the frac water supply to receive a pressurized flow of aqueous fluid into the system, and the at least one outlet end having a second coupling device attachable in fluid communication with the plurality of frac tanks;

    a first sensor disposed downstream of the at least one inlet end that monitors and communicates on a continuous, real-time basis to the at least one programmable controller a first parameter corresponding to a flow rate of the pressurized flow of aqueous fluid through the at least one fluid flow line;

    a second sensor disposed downstream of the at least one inlet end that monitors and communicates on a continuous, real-time basis to the at least one programmable controller a second parameter corresponding to an initial concentration of chlorine dioxide in the pressurized flow of aqueous fluid;

    at least one sidestream disposed downstream of the first and second sensors, which at least one sidestream diverts a portion of the pressurized flow of aqueous fluid for treatment with chlorine dioxide;

    a chlorine dioxide generator disposed in fluid communication with an at least one sidestream, which chlorine dioxide generator generates a chlorine dioxide solution having a second concentration of chlorine dioxide that is regulated by the at least one programmable controller;

    an eductor disposed in fluid communication with the chlorine dioxide generator and with the at least one sidestream, through which eductor chlorine dioxide solution is drawn into the at least one sidestream, thereby utilizing the pressurized flow of aqueous fluid as a motive force for introducing and mixing the chlorine dioxide solution into the at least one sidestream to produce a treated aqueous fluid having a chlorine dioxide concentration higher than the initial concentration of chlorine dioxide in the pressurized flow of aqueous fluid upstream of the at least one sidestream;

    a third sensor disposed in the at least one sidestream at a location downstream of the eductor, which third sensor monitors and communicates on a continuous, real-time basis to the at least one programmable controller the concentration of chlorine dioxide in the treated aqueous fluid in the at least one sidestream at a location downstream of the eductor;

    a plurality of treated aqueous fluid flow lines disposed downstream of the third sensor through which flow is selectively controllable by the at least one programmable controller to direct treated aqueous fluid directly to the frac tanks or back into the pressurized flow of aqueous fluid from which the at least one sidestream was diverted;

    at least one recirculation flow line configured to recirculate the treated aqueous fluid from any of the plurality of frac tanks and introduce the treated aqueous fluid through a fourth sensor and into the pressurized flow of aqueous fluid at a point upstream of the at least one sidestream; and

    at least one motor vehicle or towable carrier unit within which the at least one programmable controller, first sensor, second sensor, at least one sidestream, chlorine dioxide generator, eductor and third and fourth sensors are self-contained for transport to the well site.

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