WO2013163786A1 - Pompe de fracturation - Google Patents

Pompe de fracturation Download PDF

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Publication number
WO2013163786A1
WO2013163786A1 PCT/CN2012/074945 CN2012074945W WO2013163786A1 WO 2013163786 A1 WO2013163786 A1 WO 2013163786A1 CN 2012074945 W CN2012074945 W CN 2012074945W WO 2013163786 A1 WO2013163786 A1 WO 2013163786A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
motor
fracturing pump
fracturing
cooling device
Prior art date
Application number
PCT/CN2012/074945
Other languages
English (en)
Chinese (zh)
Inventor
张弭
唐平
王信军
王江阳
陈涛
张斌
谢梅英
赵永灿
Original Assignee
四川宏华石油设备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 四川宏华石油设备有限公司 filed Critical 四川宏华石油设备有限公司
Priority to US14/397,674 priority Critical patent/US20150078924A1/en
Priority to CN201280072274.0A priority patent/CN104204521A/zh
Priority to PCT/CN2012/074945 priority patent/WO2013163786A1/fr
Publication of WO2013163786A1 publication Critical patent/WO2013163786A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/08—Cooling; Heating; Preventing freezing
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25—Methods for stimulating production
    • E21B43/26—Methods for stimulating production by forming crevices or fractures
    • E21B43/2607—Surface equipment specially adapted for fracturing operations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
    • F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/04—Heating; Cooling; Heat insulation
    • F04C29/045—Heating; Cooling; Heat insulation of the electric motor in hermetic pumps

Definitions

  • the invention relates to the technical field of oil field fracturing construction equipment, in particular to a fracturing pump.
  • the reservoir production and transformation technology ie acid fracturing technology
  • Fracturing unit equipment is the key equipment to implement this process technology, and the fracturing pump truck is an indispensable core equipment in this key equipment, and its importance can be seen.
  • the main models used at home and abroad are 2000 hp to 2500 hp fracturing pumps.
  • the fracturing pump trucks used today have a common transmission structure, that is, the fracturing pumps are all driven by the diesel engine on the platform through the gearbox.
  • the output displacement and pressure change of the fracturing pump are realized by controlling the combination of the speed of the diesel engine and the gear shift.
  • the mechanical structure transmission mode the load capacity of the chassis and the road and bridge capacity
  • the single machine power of the fracturing pump is difficult to be improved; in the case of large hydraulic fracturing operations, in order to meet the construction displacement requirements, The number of fracturing pump trucks required is large, which makes the site construction area larger and larger, the manifold layout is more complicated, the preliminary preparation work cycle is long, and the cost is high; and the fracturing operation control is more and more difficult, and its existence
  • the problems such as low control precision and sensitivity of response speed are becoming more and more prominent, and the safety hazard at work is large.
  • Fracturing unit systems commonly used at home and abroad mainly by engine, hydraulic transmission box, transmission, horizontal five-cylinder fracturing pump, suction manifold, discharge manifold, safety system, fuel system, power end system, etc.
  • the starter oil pump is activated by the power of the chassis, the oil pump drives the starter motor of the engine of the platform, and the engine of the platform is started.
  • the power generated by the engine of the platform is transmitted to the power end of the large pump through the hydraulic transmission box and the transmission shaft. Drive the fracturing pump to work.
  • the transmission scheme has defects: firstly, the fracturing unit has a complicated transmission structure and takes up a large space; secondly, there are many pieces of equipment that need regular inspection, and the maintenance cost is high; and, due to the hydraulic transmission box, the fracturing pump Speed, torque and other control accuracy is not high.
  • the object of the present invention is to overcome the above-mentioned deficiencies in the prior art, and to provide a fracturing pump with large single machine power, large working displacement, small floor space, and high control precision for speed and torque of a fracturing vehicle. .
  • the present invention provides the following technical solutions:
  • a fracturing pump comprising a cooling device and a control device, the fracturing pump having an electric motor coupled to the shaft, the cooling device comprising an air cooling device for cooling the rotor of the electric motor, and a water cooling device for cooling the stator of the electric motor;
  • the control device is coupled to the electric motor and the cooling device, respectively.
  • the fracturing pumps are two and the cooling device is mounted between two fracturing pumps.
  • control system of the electric motor is medium voltage numerical control frequency conversion control.
  • the fracturing pump is mounted with a temperature sensor and a pressure sensor, the temperature sensor and the pressure sensor, the inverter of the motor are connected to the PLC controller through a field bus cable, and the PLC controller is connected to the man-machine input. Device.
  • the field bus is a Profibus field bus.
  • a monitoring device is connected to the communication interface of the Profibus field bus, and the communication interface of the monitoring device and the Profibus field bus is remotely connected via Ethernet, and the distributed I/O device communicating with the PLC controller of the control layer is transmitted to the instrument vehicle.
  • the programmable controller communicates with the monitoring layer via a field bus.
  • the human input device is an industrial touch screen.
  • the air-cooling device includes a fan, and an air outlet of the fan is connected to the inside of the motor, and a radial fan is further mounted on the motor housing, and the radial fan is externally outward of the motor Take out the air.
  • the water-cooling device comprises a water pump, the water inlet of the water pump is connected to the water tank, and the water outlet of the water pump is connected to a water jacket outside the motor, the water jacket has an S-shaped passage inside, and the water jacket of the water jacket A radiator is connected, and a water outlet of the radiator is connected to the water tank.
  • the water jacket is further provided with a drain port.
  • the fracturing pump of the invention adopts the structure of direct drive of the motor, the transmission structure form of the conventional fracturing pump diesel engine and the transmission box is broken, so that the structure of the entire fracturing pump is simple, and the equipment installed on the fracturing truck is small, and the device The failure rate is reduced and the use is safer and more reliable.
  • the fracturing pump of the invention has large power and large displacement, one car, one pump or one car and two pumps can be realized, the floor space during the fracturing operation is greatly reduced, and the fracturing pump is greatly reduced.
  • the connection pipeline between the two places, the layout of the fracturing pipe at the site is more concise, the advantages of large-scale application are outstanding, and it meets the requirements of modern green environmental protection.
  • the cooling device of the fracturing pump of the present invention comprises an air cooling device and a water cooling device
  • a part of the heat generated by the motor during operation is forced to be taken away by the air cooling device, and another part of the circulating water formed by the water cooling device passes through the motor water jacket.
  • the cooling air enters the fan through the air inlet of the air-cooling device of the motor, and the high-pressure cooling air is formed by the centrifugal force of the fan, and then enters the inside of the motor, taking away the heat generated by the motor core, and the fan rotates to generate centrifugal force.
  • the low pressure zone is formed at the fan to accelerate the flow of air inside the motor, so that heat is discharged through the air outlet to achieve heat dissipation.
  • the cooling water of the motor water cooling device is pressurized by the water pump and enters the motor water jacket through the water inlet.
  • the cooling water passes through the S-shaped channel of the motor water jacket (the S-shaped channel increases the heat dissipation channel, the heat dissipation is better and more uniform), and the motor water jacket is taken away.
  • the heat of the inner surface enables heat dissipation.
  • the cooling water After passing through the S-shaped water flow channel, the cooling water flows out of the motor through the water outlet, and the cooling water with the heat temperature rises is lowered again by the temperature of the radiator, so that the water temperature reaches the temperature at the time of water inlet, and the water is returned to the water tank, and the above process is repeated again.
  • the motor When the motor is not running, drain the water in the motor water jacket through the drain to prevent the motor water jacket from breaking up when the temperature is below zero degrees Celsius.
  • Figure 1 is a schematic view of the control system of the fracturing pump of the present invention.
  • FIG. 2 is a schematic structural view of an air-cooling device of a fracturing pump of the present invention.
  • Fig. 3 is a structural schematic view of a water cooling device of a fracturing pump of the present invention.
  • Figure 4 is a side elevational view of the water cooling device of the fracturing pump of the present invention.
  • Fig. 5 is a schematic view showing the internal water flow of the water jacket of the motor in the water cooling device of the fracturing pump of the present invention.
  • a fracturing pump and its associated equipment and control system comprising three fracturing trucks, a sand mixing truck, an instrument vehicle and a control system thereof, the fracturing pump comprising a cooling device and a control device, wherein the fracturing pump shaft
  • An electric motor is connected, and the cooling device includes an air cooling device that cools the rotor of the electric motor, and a water cooling device that cools the stator of the electric motor; the control device is connected to the electric motor and the cooling device, respectively.
  • the control layer uses the Profibus field bus to organically connect the fracturing pump, the sand mixing vehicle and the instrument vehicle to form a stable and easy to expand network environment.
  • the transmission medium adopts shielded twisted pair cable.
  • the system adopts a token ring topology. Each device uses a network access device to connect to the network.
  • the data transmission rate is 1.5. Mb/s.
  • the sensor signal on the fracturing pump is transmitted to the S7-300 PLC of the instrument vehicle through the distributed I/O device, and the S7-300 PLC communicates with the monitoring layer through the field bus.
  • the monitoring layer communicates with the S7-300PLC of the control layer through the fieldbus communication interface, graphically sets and monitors process parameters, stores production history data, and performs real-time data on-site analysis to simulate complex reservoir cracks by means of fracturing simulation software.
  • the expansion and proppant migration optimize the fracturing design to improve fracturing quality and operational efficiency.
  • the monitoring layer includes an industrial control computer, and the monitoring layer communicates with the S7-300 PLC using a Profibus fieldbus communication interface.
  • the monitoring layer communicates with the PLC of the control layer through the Profibus communication interface, and the software platform of the system runs Windows.
  • NT+WINCC configuration software uses graphical means to set and monitor process parameters, store production history data, and perform real-time data on-site analysis. Simulate the expansion of cracks in complex reservoirs and proppant migration by means of fracturing simulation software. Crack construction design to improve the quality of fracturing construction and work efficiency.
  • the remote control and effective processing of data and information can save time and space for equipment maintenance and information acquisition.
  • the sensor includes a pressure sensor and a temperature sensor.
  • two fracturing pumps are provided on the fracturing vehicle.
  • the cooling unit is installed between the two fracturing pumps.
  • the cooling device on the fracturing pump includes a motor air cooling device and a motor water cooling device.
  • the motor air-cooling device includes a fan motor 3 and a motor core 4 in the motor.
  • the fan motor 3 is provided with a fan 2 on one side thereof, and an air inlet 1 is also disposed on the fan.
  • a fan 5 is further disposed on the core 4, and an air outlet 6 is further disposed above the fan 5.
  • the working principle of the motor air-cooling device is: the cooling air enters the fan 2 through the air inlet 1, the high-pressure cooling air is formed by the centrifugal force of the fan 2, and then enters the inside of the motor, taking away the heat generated by the motor core 4, and the fan 5 rotates to generate centrifugal force.
  • the low pressure zone is formed at the fan 5 to accelerate the flow of air inside the motor, so that heat is discharged through the air outlet 6 to achieve heat dissipation cooling.
  • the motor water cooling device includes a motor water jacket 7 and a water pump 12 disposed in the motor.
  • the motor water jacket 7 is further provided with a water inlet 8 and a water outlet 9 outside the motor.
  • a radiator 10 is also provided, to which the water tank 11 is connected, and the water tank 11 is connected to the water inlet 8.
  • a drain port 13 is also provided on the motor.
  • the working principle of the motor water cooling device is that the cooling water of the water tank 11 is pressurized by the water pump 12, and enters the motor water jacket 7 through the water inlet 8, as shown in Fig.
  • the cooling water passes through the S-shaped passage of the motor water jacket 7 (S-shaped passage)
  • the heat dissipation channel is added to make the heat dissipation better and more uniform, and the heat of the inner surface of the motor water jacket 7 is taken away, thereby achieving heat dissipation and cooling.
  • the cooling water flows out of the motor through the water outlet 9, and the cooling water with the increased heat temperature is again lowered by the temperature of the radiator 10, so that the water temperature reaches the temperature at the time of entering the water, is returned to the water tank 11, and is circulated again. Repeat the above process.
  • the water in the motor water jacket 7 is discharged through the drain port 13 to prevent the motor water jacket 7 from rising above the temperature below zero degrees Celsius.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention porte sur une pompe de fracturation, qui comprend un appareil de refroidissement et un appareil de commande. Un moteur est couplé à l'arbre de la pompe de fracturation. L'appareil de refroidissement comprend un dispositif de refroidissement à air servant à refroidir le rotor du moteur et un dispositif de refroidissement à eau servant à refroidir le stator du moteur. Le dispositif de commande est couplé aux dispositifs de refroidissement pour le moteur respectivement. La présente pompe de fracturation peut dissiper efficacement la chaleur.
PCT/CN2012/074945 2012-04-29 2012-04-29 Pompe de fracturation WO2013163786A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US14/397,674 US20150078924A1 (en) 2012-04-29 2012-04-29 Fracturing Pump
CN201280072274.0A CN104204521A (zh) 2012-04-29 2012-04-29 压裂泵
PCT/CN2012/074945 WO2013163786A1 (fr) 2012-04-29 2012-04-29 Pompe de fracturation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/074945 WO2013163786A1 (fr) 2012-04-29 2012-04-29 Pompe de fracturation

Publications (1)

Publication Number Publication Date
WO2013163786A1 true WO2013163786A1 (fr) 2013-11-07

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ID=49514168

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Application Number Title Priority Date Filing Date
PCT/CN2012/074945 WO2013163786A1 (fr) 2012-04-29 2012-04-29 Pompe de fracturation

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US (1) US20150078924A1 (fr)
CN (1) CN104204521A (fr)
WO (1) WO2013163786A1 (fr)

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