Method and system for servicing a wellbore

Abstract

A method of servicing a wellbore, comprising transporting a plurality of wellbore servicing equipment to a well site associated with the wellbore, accessing a water source to form a water stream from the water source to at least one of the plurality of wellbore servicing equipment, passing a direct electrical current through the water stream obtained from the water source to coalesce an undissolved solid phase and an undissolved organic phase in the water stream, separating the coalesced undissolved solid phase and the coalesced undissolved organic phase from the water stream to yield a substantially single-phase water stream, adding ozone to the substantially single-phase water stream to yield an ozonated water stream, irradiating the ozonated water stream with ultraviolet light to yield an irradiated water stream, forming a wellbore servicing fluid using the irradiated water stream, and placing the wellbore servicing fluid into the wellbore.

1 . A method of servicing a wellbore, comprising:
 transporting a plurality of wellbore servicing equipment to a well site associated with the wellbore;   accessing a water source to form a water stream from the water source to at least one of the plurality of wellbore servicing equipment;   passing a direct electrical current through the water stream obtained from the water source to coalesce an undissolved solid phase and an undissolved organic phase in the water stream;   separating the coalesced undissolved solid phase and the coalesced undissolved organic phase from the water stream to yield a substantially single-phase water stream;   adding ozone to the substantially single-phase water stream to yield an ozonated water stream;   irradiating the ozonated water stream with ultraviolet light to yield an irradiated water stream;   forming a wellbore servicing fluid using the irradiated water stream; and   placing the wellbore servicing fluid into the wellbore.   
     
     
         2 . The method of  claim 1 , further comprising adding additional ozone to the irradiated water stream prior to forming the wellbore servicing fluid. 
     
     
         3 . The method of  claim 1 , wherein the water stream obtained from the water source has a turbidity>50 NTU. 
     
     
         4 . The method of  claim 1 , wherein the substantially single-phase water stream has a turbidity<50 NTU. 
     
     
         5 . The method of  claim 4 , further comprising measuring a turbidity of the substantially single-phase water stream. 
     
     
         6 . The method of  claim 3 , further comprising measuring a turbidity of the water stream obtained from the water source. 
     
     
         7 . The method of  claim 5 , further comprising adjusting the current as a function of the turbidity of the substantially single-phase water stream. 
     
     
         8 . The method of  claim 1 , wherein the wellbore servicing fluid comprises a hydraulic fracturing fluid. 
     
     
         9 . The method of  claim 1 , further comprising storing at least a portion of the irradiated water stream in a storage vessel proximate the wellbore and subsequently forming the wellbore servicing fluid. 
     
     
         10 . The method of  claim 1 , wherein the water source comprises produced water, flowback water, surface water, well water, municipal water, potable water, or combinations thereof. 
     
     
         11 . The method of  claim 1 , further comprising removing a portion of the wellbore servicing fluid from the wellbore. 
     
     
         12 . The method of  claim 11 , further comprising adding the portion of the wellbore servicing fluid removed from the wellbore to the water stream obtained from the water source prior to passing the direct electrical current therethrough. 
     
     
         13 . The method of  claim 1 , further comprising adding a first amount of biocide to the irradiated water stream. 
     
     
         14 . The method of  claim 13 , wherein the first amount of biocide is at least approximately 10% less than an alternative amount of biocide that would be required to achieve a degree of microorganism inactivation from the water stream obtained from the water source approximately equal to that from the irradiated water stream after addition of the first amount of biocide thereto. 
     
     
         15 . The method of  claim 14 , wherein the first amount of biocide is at least approximately 50% less than the alternative amount of biocide. 
     
     
         16 . The method of  claim 14 , wherein the first amount of biocide is at least approximately 90% less than the alternative amount of biocide. 
     
     
         17 . The method of  claim 1 , further comprising removing the wellbore servicing equipment from the well site. 
     
     
         18 . The method of  claim 1 , wherein the irradiated water stream comprises a chemical oxygen demand lower than a chemical oxygen demand of the water source. 
     
     
         19 . The method of  claim 1 , wherein the irradiated water stream 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 irradiated water stream are inactivated. 
     
     
         20 . The method of  claim 1 , further comprising filtering of the irradiated water stream. 
     
     
         21 . A method of servicing a wellbore, comprising:
 transporting wellbore servicing equipment to a well site associated with the wellbore, wherein the wellbore servicing equipment comprises a mobile electrocoagulation unit, a mobile separation unit, a mobile ozone generator and a mobile ultraviolet light irradiation unit;   accessing a water source;   introducing a water stream obtained from the water source into the mobile electrocoagulation unit;   in the electrocoagulation unit, passing a direct electrical current through the water stream obtained from the water source to coalesce an undissolved solid phase and an undissolved organic phase in the water stream to form a coalesced undissolved solid phase and a coalesced undissolved organic phase;   separating the coalesced undissolved solid phase and the coalesced undissolved organic phase from the water stream in the mobile separation unit to yield a substantially single-phase water stream;   introducing ozone produced in the mobile ozone generator into the substantially single-phase water stream to form an ozonated water stream;   exposing the ozonated water stream to ultraviolet light in the mobile ultraviolet light irradiation unit to yield an irradiated water stream;   forming a wellbore servicing fluid using the irradiated water stream; and   placing the wellbore servicing fluid into the wellbore.   
     
     
         22 . The method of  claim 21 , wherein the mobile ozone generator and the mobile ultraviolet light irradiation unit are situated on a common structural support. 
     
     
         23 . The method of  claim 21 , wherein the mobile ozone generator and the mobile ultraviolet light irradiation unit are situated on separate structural supports. 
     
     
         24 . The method of  claim 22 , wherein the structural support comprises a trailer, a truck, a skid, a barge or combinations thereof. 
     
     
         25 . The method of  claim 23 , wherein each of the separate structural supports comprises a trailer, a truck, a skid, a barge or combinations thereof.