Integrated fluid filtration and recirculation system and method

Abstract

An integrated fluid filtration and recirculation system and method are provided for re-circulating and filtering fluid that is used in well cleaning operations. The system is incorporated within an enclosure, which is transportable, such as on a vehicle trailer. The system has power generation capability, thereby making the system capable of operating as a stand-alone unit. Chemicals may be infused into the filtered fluid from an integral chemical supply allowing the system to also function as a treatment facility for the fluid. The components of the system are arranged in a linear fashion that enables the system to maintain a minimum profile for transport upon a conventional trailer, yet the system provides enough room within the enclosure to allow operators to repair/inspect each of the system components. The enclosure may be climate controlled, and the enclosure may include removable panels for operation of the system in temperate conditions when climate control is unnecessary.

What is claimed is: 
     
         1 . An integrated fluid filtration and recirculation system comprising:
 an enclosure having at least two rooms, said enclosure comprising a main pallet forming a floor, sidewalls, and a roof;   a first door for accessing one room, and a second door for accessing the other room;   an electrical power generator located in one room;   a filtration assembly located in the other room, said filtration assembly comprising:
 a primary filtration station; 
 a secondary filtration station; 
 a plurality of filtrate lines; 
 a plurality of bypass lines; 
 a plurality of waste lines; 
 wherein said filtration assembly is arranged for primary and secondary filtration of a liquid stream passing through the assembly to create a filtered liquid stream; 
 at least one filtration pump for conveying said fluid through said filtration assembly; and 
 a main controller for providing automated control of said electrical power generator and said filtration assembly. 
   
     
     
         2 . A system, as claimed in  claim 1 , wherein:
 said filtration assembly is generally aligned along a longitudinal axis thereby minimizing a profile of said filtration assembly, at least said primary filtration station and said secondary filtration station being linearly aligned to minimize the profile.   
     
     
         3 . A system, as claimed in  claim 1 , wherein:
 said main controller receives pressure and flow inputs based on measured parameters of operation of said filtration assembly, and said main controller provides outputs including signals to control a plurality of valves incorporated in said filtration assembly which dictate flow paths and volumes of the liquid flowing through the assembly.   
     
     
         4 . A system, as claimed in  claim 1 , further including:
 a dosing pump for supplying an amount of a treatment chemical to the filtered liquid stream.   
     
     
         5 . A system, as claimed in  claim 1 , further including:
 an inlet line for receiving fluid to be filtered by said filtration assembly, and a discharge line for conveying filtered fluid away from the system;   a bulkhead support for mounting a location at which said inlet and outlet lines pass through said enclosure; and   an access panel for accessing said bulkhead support.   
     
     
         6 . A system, as claimed in  claim 1 , further including:
 at least one exterior light mounted on said enclosure.   
     
     
         7 . A system, as claimed in  claim 1 , further including:
 at least one set of dual access doors mounted on one sidewall of said enclosure for accessing at least one of said rooms.   
     
     
         8 . A system, as claimed in  claim 7 , wherein:
 said set of dual access doors are generator room access doors: and louvers mounted on said generator room access doors for allowing outside air to enter the generator room, wherein said main controller provides control for selectively opening and closing said louvers.   
     
     
         9 . A system, as claimed in  claim 1 , further including:
 a generator exhaust stack connected to an exhaust line of said generator, said exhaust stack extending through said roof for carrying exhaust fumes away from said enclosure.   
     
     
         10 . A system, as claimed in  claim 1 , further including:
 a power receptacle mounted on said sidewall for providing power external to said enclosure.   
     
     
         11 . A system, as claimed in  claim 1 , further including:
 a shore power access panel mounted to one of said sidewalls enabling an external power line to be connected to said enclosure.   
     
     
         12 . A system, as claimed in  claim 1 , further including:
 an emergency stop mounted to one of said sidewalls of said enclosure allowing an operator to shut down said system or selected components of said system in the event of an emergency.   
     
     
         13 . A system, as claimed in  claim 1 , further including:
 a window mounted to one of said sidewalls.   
     
     
         14 . A system, as claimed in  claim 1 , further including:
 an oil filter access panel mounted to one of said sidewalls enabling exterior access to an oil filter of said generator.   
     
     
         15 . A system, as claimed in  claim 1 , wherein:
 said sidewalls include opposing end walls, and one set of dual access doors being mounted on at least one of said end walls for accessing at least one of said rooms.   
     
     
         16 . A system, as claimed in  claim 15 , further including:
 louvers mounted on said dual access doors for allowing outside air to enter the corresponding room, wherein said main controller provides control for selectively opening and closing said louvers.   
     
     
         17 . In combination, a system for cleaning a wellbore, said system comprising:
 a coiled tubing dispenser and an amount of coiled tubing dispensed from said coiled tubing dispenser and placed down-hole in said wellbore;   an integrated fluid filtration and recirculation system comprising:
 an enclosure comprising a main pallet forming a floor, sidewalls, and a roof, an interior of said enclosure separated into two rooms by a fire rated dividing wall; 
 a first door for accessing one room, and a second door for accessing the other room; 
 an electrical power generator mounted in said enclosure; 
 a filtration assembly mounted in said enclosure for filtering cleaning fluid placed down-hole; 
 said filtration assembly including a primary filtration station and a secondary filtration station; 
 at least one filtration pump mounted in said enclosure for conveying said cleaning fluid through said filtration assembly to filter said cleaning fluid; 
 a main controller mounted in said enclosure for providing automated control of the electrical power generator and filtration assembly; 
 a fluid transport line interconnecting filtered cleaning fluid from said filtration assembly to said coiled tubing; and 
 a return line communication with said wellbore for returning used cleaning fluid from the wellbore to said filtration assembly. 
   
     
     
         18 . The combination, as claimed in  claim 17 , wherein:
 said enclosure further includes climate controlled elements for controlling the temperature within said enclosure, said climate control elements including at least one of a heater and an air conditioner.   
     
     
         19 . The combination, as claimed in  claim 17 , wherein:
 a main controller is incorporated within wireless communication system, said main controller producing user interfaces that show operating parameters of said generator and said filtration assembly, and said user interfaces further providing command options for commands to be sent by the user to the main controller for controlling the operation of the generator and filtration assembly remotely.   
     
     
         20 . The combination, as claimed in  claim 17 , wherein:
 said filtration assembly is generally aligned along a longitudinal axis thereby minimizing a profile of said filtration assembly, at least said primary filtration station and said secondary filtration station being linearly aligned to minimize the profile.   
     
     
         21 . The combination, as claimed in  claim 17 , wherein:
 said main controller receives pressure and flow inputs based on measured parameters of operation of said filtration assembly, and said main controller provides outputs including signals to control a plurality of valves incorporated in said filtration assembly which dictate flow paths and volumes of the liquid flowing through the assembly.   
     
     
         22 . A system, as claimed in  claim 17 , further including:
 an inlet line for receiving fluid to be filtered by said filtration assembly, and a discharge line for conveying filtered fluid away from the system;   a bulkhead support for mounting a location at which said inlet and outlet lines pass through said enclosure; and   an access panel for accessing said bulkhead support.   
     
     
         23 . A system, as claimed in  claim 17 , further including:
 at least one exterior light mounted on said enclosure.   
     
     
         24 . A system, as claimed in  claim 17 , further including:
 at least one set of dual access doors mounted on one sidewall of said enclosure for accessing at least one of said rooms.   
     
     
         25 . A system, as claimed in  claim 24 , wherein:
 said set of dual access doors are generator room access doors for accessing a generator room as one of said two rooms: and   louvers mounted on said generator room access doors for allowing outside air to enter the generator room, wherein said main controller provides control for selectively opening and closing said louvers.   
     
     
         26 . A system, as claimed in  claim 17 , further including:
 a generator exhaust stack connected to an exhaust line of said generator, said exhaust stack extending through said roof for carrying exhaust fumes away from said enclosure.   
     
     
         27 . A system, as claimed in  claim 17 , further including:
 a power receptacle mounted on said sidewall for providing power external to said enclosure.   
     
     
         28 . A system, as claimed in  claim 17 , further including:
 a shore power access panel mounted to one of said sidewalls enabling an external power line to be connected to said enclosure.   
     
     
         29 . A system, as claimed in  claim 17 , further including:
 an emergency stop mounted to one of said sidewalls of said enclosure allowing an operator to shut down said system or selected components of said system in the event of an emergency.   
     
     
         30 . A system, as claimed in  claim 17 , further including:
 a window mounted to one of said sidewalls.   
     
     
         31 . A system, as claimed in  claim 1 , further including:
 an oil filter access panel mounted to one of said sidewalls enabling exterior access to an oil filter of said generator.   
     
     
         32 . A system, as claimed in  claim 17 , wherein:
 said sidewalls include opposing end walls, and one set of dual access doors being mounted on at least one of said end walls for accessing at least one of said rooms.   
     
     
         33 . An integrated fluid filtration and recirculation system comprising:
 an enclosure having at least two rooms, said enclosure comprising a main pallet forming a floor, sidewalls, and a roof;   a first door for accessing one room, and a second door for accessing the other room;   an electrical power generator located in one room;   a filtration assembly located in the other room, said filtration assembly comprising:
 a primary filtration station; 
 a secondary filtration station; 
 a plurality of filtrate lines; 
 a plurality of bypass lines; 
 a plurality of waste lines; 
 wherein said filtration assembly is arranged for primary and secondary filtration of a liquid stream passing through said assembly to create a filtered liquid stream; 
 at least one filtration pump for conveying said fluid through said filtration assembly; 
 a main controller for providing automated control of said electrical power generator and said filtration assembly; and 
 said filtration assembly is generally aligned along a longitudinal axis thereby minimizing a profile of said filtration assembly, at least said primary filtration station and said secondary filtration station being linearly aligned to minimize the profile.