Method and system for servicing a wellbore

Abstract

A system for servicing a wellbore, comprising a water source, a first water stream from the water source comprising undissolved solids, dissolved organics and undissolved organics, the first water stream being introduced into a mobile electrocoagulation unit, a second water stream comprising coalesced undissolved solids, coalesced undissolved organics and dissolved organics, the second water stream being emitted from the electrocoagulation unit and introduced into a mobile separation unit, a third water stream comprising dissolved organics, the third water stream being emitted from the separation unit, an ozone stream emitted from a mobile ozone generator and added to the third water stream comprising dissolved organics to form an ozonated water stream comprising dissolved organics, the ozonated water stream comprising dissolved organics being introduced into a mobile ultraviolet irradiation unit, a fourth water stream substantially free of undissolved solids, facilely-oxidizable organics and active microorganisms, the fourth water stream being emitted from the ultraviolet irradiation unit, and a wellbore servicing fluid, wherein the wellbore servicing fluid is formed using the fourth water stream, the wellbore servicing fluid being placed in the wellbore.

1 . A system for servicing a wellbore, comprising:
 a water source;   a first water stream from the water source comprising undissolved solids, dissolved organics and undissolved organics, the first water stream being introduced into a mobile electrocoagulation unit;   a second water stream comprising coalesced undissolved solids, coalesced undissolved organics and dissolved organics, the second water stream being emitted from the electrocoagulation unit and introduced into a mobile separation unit;   a third water stream comprising dissolved organics, the third water stream being emitted from the separation unit;   an ozone stream emitted from a mobile ozone generator and added to the third water stream comprising dissolved organics to form an ozonated water stream comprising dissolved organics, the ozonated water stream comprising dissolved organics being introduced into a mobile ultraviolet irradiation unit;   a fourth water stream substantially free of undissolved solids, facilely-oxidizable organics and active microorganisms, the fourth water stream being emitted from the ultraviolet irradiation unit; and   a wellbore servicing fluid, wherein the wellbore servicing fluid is formed using the fourth water stream, the wellbore servicing fluid being placed in the wellbore.   
     
     
         2 . The system of  claim 1 , further comprising a second ozone stream emitted from the ozone generator and added to the fourth water stream substantially free of undissolved solids, facilely-oxidizable organics and active microorganisms. 
     
     
         3 . The system of  claim 1 , wherein the first water stream from the water source has a turbidity >50 NTU. 
     
     
         4 . The system of  claim 1 , wherein the third water stream comprising dissolved organics has a turbidity <50 NTU. 
     
     
         5 . The system of  claim 1 , further comprising a nephelometer configured to measure a turbidity of the third water stream comprising dissolved organics. 
     
     
         6 . The system of  claim 1 , further comprising a nephelometer configured to measure a turbidity of the first water stream from the water source. 
     
     
         7 . The system of  claim 5 , further comprising a controller, wherein the controller adjusts the current as a function of the turbidity of the third water stream comprising dissolved organics. 
     
     
         8 . The system of  claim 1 , wherein the wellbore servicing fluid comprises a hydraulic fracturing fluid. 
     
     
         9 . The system of  claim 1 , further comprising a storage vessel configured to store at least a portion of the fourth water stream substantially free of undissolved solids, facilely-oxidizable organics and active microorganisms. 
     
     
         10 . The system of  claim 1 , wherein the water source comprises produced water, flowback water, surface water, well water, municipal water, or combinations thereof. 
     
     
         11 . The system of  claim 1 , further comprising a biocide stream added to the fourth water stream substantially free of undissolved solids, facilely-oxidizable organics and active microorganisms at a first mass flow rate. 
     
     
         12 . The system of  claim 11 , wherein the first mass flow rate of the biocide stream is at least approximately 10% less than an alternative mass flow rate of an alternative biocide stream that would be required to achieve a degree of microorganism inactivation in the first water stream from the water source approximately equal to that from the fourth water stream substantially free of undissolved solids, facilely-oxidizable organics and active microorganisms after addition of the first mass flow rate of the biocide stream thereto. 
     
     
         13 . The system of  claim 12 , wherein the first mass flow rate is at least approximately 50% less than the alternative mass flow rate. 
     
     
         14 . The system of  claim 12 , wherein the first mass flow rate is at least approximately 90% less than the alternative mass flow rate. 
     
     
         15 . The system of  claim 1 , wherein the third water stream comprising dissolved organics comprises a chemical oxygen demand lower than a chemical oxygen demand of the water source. 
     
     
         16 . The system of  claim 1 , wherein the fourth water stream substantially free of undissolved solids, facilely-oxidizable organics and active microorganisms comprises a chemical oxygen demand at least 50% lower than a chemical oxygen demand of the water source, and at least 90% of the microorganisms from the water source and present in the fourth water stream are inactivated.