CN109796956B - Electric-drive continuous fracturing fluid blending sledge - Google Patents

Electric-drive continuous fracturing fluid blending sledge Download PDF

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Publication number
CN109796956B
CN109796956B CN201811614076.8A CN201811614076A CN109796956B CN 109796956 B CN109796956 B CN 109796956B CN 201811614076 A CN201811614076 A CN 201811614076A CN 109796956 B CN109796956 B CN 109796956B
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electric
powder
water feeding
pump
driving motor
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CN109796956A (en
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陈跃
李磊
汪承材
董永
梅正
李飞
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SJS Ltd
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SJS Ltd
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Abstract

The invention provides an electrically-driven fracturing fluid continuous blending sledge, which comprises a double-weightlessness metering feeding unit, a hydration unit, a mixing unit and a programmable controller, wherein the mixing unit comprises a powder-liquid mixer, a water feeding manifold and a pipeline, the weightlessness metering feeding unit is provided with a weightlessness metering device, the hydration unit comprises a mixing tank, the lower end of the mixing tank is provided with a discharge manifold, the water feeding manifold is connected with an electric water feeding pump, the water feeding manifold is provided with a water feeding flowmeter, the discharge manifold is connected with the electric discharge pump, and the discharge manifold is provided with a discharge flowmeter; the programmable controller is connected with the weightlessness metering device and the water feeding flow meter, and is simultaneously connected with the electric water feeding pump and the electric discharge pump, so as to regulate and control the rotating speed of the electric water feeding pump and the electric discharge pump, so that the loss weight and the water feeding flow meet the powder-liquid ratio; and a liquid level meter is arranged in the mixing tank, and the programmable controller is connected with the liquid level meter and the electric discharge pump and is used for regulating and controlling the rotating speed of the electric water feeding pump and the electric discharge pump so as to maintain the liquid level on the set parameters.

Description

Electric-drive continuous fracturing fluid blending sledge
Technical Field
The invention relates to the technical field of liquid preparation for fracturing construction of oil and gas fields, in particular to an electrically-driven fracturing liquid continuous mixing sledge.
Background
Along with the popularization of the application of hydraulic fracturing construction in oil field production increase and shale gas exploitation, the amount of fracturing fluid required by primary fracturing is larger and larger. The traditional continuous fracturing fluid mixing sledge takes a diesel engine as a power source, and completes mixing work through a hydraulic system. At present, two blending formulas appear in the same stage of fracturing, two powder materials need to be blended, and the rapid switching is carried out.
The traditional mixing sledge has low automation degree, generally needs manual work to carry out field control, not only consumes a large amount of human resources, but also is difficult to adjust the operation and mixing data of the mixing sledge in real time through manual work according to the operation and mixing conditions of the mixing sledge, thereby increasing the risk of mixing. And the traditional mixing sledge is only provided with a powder storage tank, so that the quick switching from mixing one powder to mixing the other powder cannot be realized. Meanwhile, due to the fact that the mixing discharge capacity is large, powder cannot be supplied to the powder storage tank in a short time after the powder in the powder storage tank is consumed, the powder needs to be added to the powder storage tank in a stopped mode, and the whole fracturing construction is affected due to the fact that the mixing operation cannot be continuously mixed for a long time.
Disclosure of Invention
In view of this, the embodiment of the present invention provides an electrically driven fracturing fluid continuous blending sledge, which has a high automation degree and can automatically regulate and control operation and blending parameters in real time.
The embodiment of the invention provides an electrically-driven fracturing fluid continuous mixing sledge, which comprises a double-weightlessness metering feeding unit, a hydration unit, a mixing unit and a programmable controller, wherein the mixing unit is connected with the weightlessness metering feeding unit and the hydration unit, the mixing unit comprises a powder-liquid mixer for mixing powder and liquid into fluid, a water feeding manifold which is connected with the powder-liquid mixer to inject clean water into the powder-liquid mixer, a pipeline for leading powder into the powder mixer and a centrifugal degassing device for receiving the fluid led in the powder mixer, the weightlessness metering feeding unit is provided with a weightlessness metering device for metering the weightlessness of the powder, each weightlessness metering feeding unit outputs the weightlessness of the powder through a pipeline, the hydration unit comprises a mixing tank communicated with the inside of the centrifugal degassing device, the lower end of the mixing tank is provided with a discharge manifold for discharging the fluid in the mixing tank through the discharge manifold, the water feeding manifold is connected with the electric water feeding pump and is provided with a water feeding flowmeter for monitoring water feeding flow, the discharge manifold is connected with the electric discharge pump and is provided with a discharge flowmeter for monitoring discharge flow; the programmable controller is connected with the weightlessness metering device and the water feeding flow meter, and is simultaneously connected with the electric water feeding pump and the electric discharge pump, so that the rotating speeds of the electric water feeding pump and the electric discharge pump are regulated and controlled according to the weightlessness quantity and the water feeding flow, and the loss weight and the water feeding flow meet the powder-liquid ratio; the mixing tank is internally provided with a liquid level meter for monitoring the liquid level height of the mixing tank, and the programmable controller is connected with the liquid level meter and the electric discharge pump and is used for regulating and controlling the rotating speed of the electric water feeding pump and the electric discharge pump according to the liquid level height so as to maintain the liquid level height on the set liquid level parameter.
Furthermore, the dual weightlessness measurement feeding units are two sets of weightlessness measurement feeding units which are relatively independent, and each set of weightlessness measurement feeding unit comprises a powder storage tank with a powder inlet, an electric screw feeder corresponding to the powder storage tank outlet and a weightlessness measurement device; the weight loss metering device is an electronic scale, and each powder storage tank corresponds to a set of electronic scale for monitoring the weight loss of the powder storage tank, so that the weight lost by each powder storage tank can be monitored independently.
Further, the two powder storage tanks are close together but do not contact; the receiving hopper is positioned under the two electric screw feeders and can simultaneously receive powder output by the two electric screw feeders, and the electric screw feeders are connected with the pipeline through the outlet of the receiving hopper to realize the connection between the electric screw feeders and the pipeline; the pipeline is a hose.
Further, spiral grooves are formed in the inner wall of the centrifugal degassing device, nozzles are arranged at the outlet end of the powder-liquid mixer, the nozzles are arranged along the tangential direction of the corresponding spiral grooves, so that high-speed fluid sprayed by the nozzles flows in the centrifugal degassing device along the spiral grooves, and gas is separated from the fluid when the fluid flows along the spiral grooves; the bottom of the centrifugal degassing device is provided with a plurality of through holes communicated with the mixing tank, and the fluid in the centrifugal degassing device flows into the mixing tank through the through holes; the mixing tank is internally provided with a clapboard which enables the fluid to flow up and down and a stirrer for stirring the fluid, and the fluid which enters the mixing tank firstly is discharged by the discharge manifold.
Further, the sledge is thoughtlessly joined in marriage to electricity drive fracturing fluid still includes bale breaker and electronic material loading screw feeder, the bale breaker has the dust remover, and includes the bale breaking storehouse of acceping the powder after the bale breaking, the export of bale breaking storehouse is aimed at to the lower extreme of electronic material loading screw feeder, the upper end export of electronic material loading screw feeder can rotate, can aim at one of two powder storage tanks, thereby electronic material loading screw feeder connects electronic material loading screw feeder driving motor can by the operation drive of electronic material loading screw feeder driving motor, and convey the powder in the bale breaking storehouse to in any one powder storage tank.
Further, the electrically-driven fracturing fluid continuous mixing sledge further comprises a control room and an operation table, wherein the operation table is provided with a control panel and the programmable controller, and the programmable controller is connected with the control panel so that the control program and the control parameters of the programmable controller can be modified by operating the control panel; a transformer and a motor driving device are arranged in the control chamber, the motor driving device is connected with an on-site power supply or a generator through the transformer, and the motor driving device is used for driving the electric water feeding pump, the electric discharge pump, the stirrer, the double-electric screw feeder and the electric feeding auger to operate; and according to the power supply condition of the field power supply or the generator, the programmable controller controls the transformer to select one of the field power supply and the generator.
Further, the electric water feeding pump is connected with an electric water feeding pump driving motor so as to be driven by the operation of the electric water feeding pump driving motor, the electric discharge pump is connected with an electric discharge pump driving motor so as to be driven by the operation of the electric discharge pump driving motor, the stirrer is connected with a stirrer driving motor so as to be driven by the operation of the stirrer driving motor, and each electric screw feeder is connected with an electric screw feeder driving motor so as to be driven by the operation of the electric screw feeder driving motor; the motor driving device is connected with the electric water feeding pump driving motor, the electric discharge pump driving motor, the stirrer driving motor, the electric screw feeder driving motor and the electric feeding auger driving motor in a one-to-one correspondence manner and used for respectively driving the corresponding motors to operate.
Further, the electrically-driven fracturing fluid continuous mixing sledge further comprises a temperature sensor, electric heat-preservation heating devices are arranged on the water feeding manifold, the discharging manifold and the mixing tank, and the programmable controller is connected with the temperature sensor and the electric heat-preservation heating devices and used for regulating and controlling the heat preservation or heating temperature of the corresponding electric heat-preservation heating devices according to the temperature monitored by the temperature sensor.
Further, the programmable controller is in bidirectional communication with a remote control end through a switch, so that the control program and control parameters of the programmable controller can be modified by operating the remote control end, and the programmable controller can transmit various operating parameters of the electrically-driven fracturing fluid continuous blending sledge to the remote control end in real time.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
1. after the motor is used as a power source, the structure is simpler, and the design is more reasonable.
2. The localization rate is high, the cost is low, the purchasing period is short, and the after-sale service is convenient: the motor and the like in the invention have mature products at home, the model selection is convenient, and the whole cost is lower than that of the engine scheme.
3. Degree of automation is high, improves work efficiency: the stepless speed regulation can be realized under the driving of the motor driving device, the motor can output under different powers, so that the optimal energy utilization rate is kept, the operation energy consumption is reduced to the minimum, the energy-saving and emission-reducing effects are good, various matching output modes of torque and rotating speed can be realized, and the automatic control level and the automatic control efficiency of the continuous blending of the fracturing fluid are easy to improve.
4. The energy supply is convenient: the invention adopts an electric drive mode, can directly utilize a well site (on-site) power grid to supply power, or utilizes natural gas of the well site and a natural gas generator set to supply power, thereby saving fuel oil transportation.
5. Easy maintenance: compared with a diesel engine, the electric driving scheme has the advantages of simple maintenance, less control indexes and greatly reduced daily maintenance workload and cost.
6. The working reliability is high: the reliability of the motor system is far higher than that of a diesel engine system, the alternating current motor can be free of maintenance for 20 years, and the motor driving device can guarantee long-term uninterrupted operation.
7. The double powder metering and conveying units can realize the function of mixing two kinds of powder and carry out quick switching, and one set of powder metering and conveying system can also be adopted to supply powder to a powder-liquid mixer for mixing, a feeding mechanism is used for adding powder to the other set of powder metering and conveying system, and long-time continuous mixing operation is realized through exchange.
8. The sledge is a split sledge, namely, the sledge is divided into two sledge blocks, one is a mixed main sledge (a mixing unit and a hydration unit), and the other is a powder metering (a weightlessness metering feeding unit) and a feeding sledge (a bale breaker and an electric feeding screw). The two can be separated and transported, and the two sleds are aligned and placed in the middle during working and are connected with a power line, a powder pumping hose and a control cable.
Drawings
FIG. 1 is a general schematic diagram of the electrically driven fracturing fluid continuous blending sled of the present invention;
FIG. 2 is a top view of the weight loss dosing unit of FIG. 1;
FIG. 3 is a flow chart of level control;
FIG. 4 is a flow chart of powder-liquid ratio control.
The reference numbers illustrate: 1. a powder-liquid mixer, 2, a centrifugal degassing device, 3, an electric water feeding pump, 3-1, an electric water feeding pump driving motor, 4, a water feeding manifold, 5, a powder storage tank, 5-1, a chamber, 5-2, a chamber, 6, an electric screw feeder, 6-1, an electric screw feeder driving motor, 7, an electric screw feeder, 7-1, an electric screw feeder driving motor, 8, a mixing tank, 9, a stirrer, 9-1, a stirrer driving motor, 10, a bale breaker, 11, an electric feeding auger, 11-1, an electric feeding auger driving motor, 12, an electric discharge pump, 12-1, an electric discharge pump driving motor, 13, a discharge manifold, 14, a control chamber, 15, an operation table, 16, an electric heat preservation heating device, 17, an electronic scale, 17-1, an electronic scale, 17-2, an electronic scale, 18. the system comprises an electric heat-preservation heating device 19, an electric heat-preservation heating device 20, a receiving hopper 21, a transformer 22, a motor driving device 22, a liquid level meter 23, a water feeding flow meter 24 and a discharge flow meter 25.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present invention provides an electrically-driven fracturing fluid continuous blending sledge, including a weight loss metering feeding unit, a hydration unit, a mixing unit connecting the weight loss metering feeding unit and the hydration unit, and a programmable controller, where the mixing unit includes a powder-liquid mixer 1 for mixing powder and liquid into a fluid, and a water feeding manifold 4 connected to the powder-liquid mixer 1 for filling clean water into the powder-liquid mixer, a pipeline for introducing powder into the powder-liquid mixer, and a centrifugal degassing device 2 for receiving the fluid introduced into the powder-liquid mixer, the weight loss metering feeding unit is provided with a weight loss metering device for metering the weight loss of the powder, the weight loss metering feeding unit outputs the weight loss of the powder to the outside through a screw feeder connected to an outlet at the bottom of a powder storage tank, the hydration unit includes a mixing tank 8 communicated with the inside of the centrifugal degassing device 2, the lower end of the mixing tank 8 is provided with a discharge manifold 13, discharging the fluid in the mixing tank 8 through the discharge manifold 13, wherein the water feeding manifold 4 is connected with the electric water feeding pump 3, the water feeding manifold 4 is provided with a water feeding flow meter 24 for monitoring the water feeding flow, the discharge manifold 13 is connected with the electric discharge pump 12, and the discharge manifold 13 is provided with a discharge flow meter 25 for monitoring the discharge flow; the programmable controller is connected with the weightlessness metering device and the water feeding flow meter 24, and is simultaneously connected with the electric water feeding pump 3 and the electric discharge pump 12, so that the rotating speeds of the electric water feeding pump 3 and the electric discharge pump 12 are regulated and controlled according to the loss weight and the water feeding flow, and the weightlessness quantity and the water feeding flow meet the powder-liquid ratio; the mixing tank 8 is internally provided with a liquid level meter 23 for monitoring the liquid level height therein, and the programmable controller is connected with the liquid level meter 23 and the electric discharge pump 12 and is used for regulating and controlling the rotating speed of the electric water feeding pump 3 and the electric discharge pump 12 according to the liquid level height so as to maintain the liquid level height on the set liquid level parameter.
The double-weightlessness measurement charging unit comprises two storage tanks 5-1 and 5-2, electric screw feeders 6 and 7 corresponding to outlets of the two powder storage tanks, and electronic scales 17-1 and 17-2 of a weight measurement device, wherein the two powder storage tanks 5-1 and 5-2 and the electric screw feeders 6 and 7 are communicated in a one-to-one correspondence manner. The waist of each powder storage tank is provided with a set of electronic scale, and the weight of each powder storage tank can be monitored independently. A receiving hopper 20 is positioned below the double electric screw feeders 6 and 7 and can simultaneously receive the powder conveyed by the double electric screw feeders 6 and 7, and the electric screw feeders 6 and 7 are connected with the pipeline through an outlet of the receiving hopper 20 so as to realize connection with the pipeline. The pipeline is a hose.
(1) The liquid level control (controlling the height of the liquid level in the mixing tank) means that under the condition that the discharge flow is continuously changed, the mixing sledge automatically adjusts the rotating speed of the electric water feeding pump 3/the electric discharge pump 12 so as to maintain the liquid level on the set liquid level parameter. The programmable controller collects parameters of the liquid level meter 23 in real time and compares the parameters with the set liquid level parameters, if the actual liquid level is lower than the set liquid level, the frequency converter (the motor driving device 22) improves the pumping amount of the electric water pump 3 in unit time by improving the rotating speed of the electric water pump driving motor 3-1 and reduces the pumping amount of the electric discharge pump 12 in unit time by reducing the rotating speed of the electric discharge pump driving motor 12-1, so that the liquid level is gradually improved, the programmable controller continues to collect the parameters of the liquid level meter 23 and compares the parameters with the set liquid level parameters, and then the rotating speed of the motor is adjusted until the actual liquid level meets the set requirements; similarly, if the actual liquid level is higher than the set liquid level, the frequency converter 22 will reduce the pumping amount of the electric water pump 3 in the unit time, improve the pumping amount of the electric discharge pump 12 in the unit time, and the programmable controller collects the feedback amount, compares the feedback amount and readjusts the rotating speed of the motor until the requirement is met. The liquid level control flow is shown in fig. 3.
(2) The powder-liquid ratio control means that powder with a certain weight is added into clean water with the absorbed unit weight according to a certain proportion. For example, the designed proportion is 0.4 percent, namely 4 kilograms of powder is added into 1 square of water. The electronic scales 17-1 and 17-2 measure the weight of the dry powder, the weight change value of the electronic scales 17-1 and 17-2 in unit time is defaulted as the powder discharging amount, namely the weight loss amount, and the suction flowmeter (the water feeding flowmeter 24) measures the flow rate of clean water. The programmable controller collects the clear water flow and the powder discharge in unit time in real time, obtains the real-time ratio after ratio calculation, compares the real-time ratio with the set ratio parameters, controls the frequency converter to increase the rotating speed of the corresponding electric screw feeder 6 and 7 if the ratio is lower than the set parameters, collects the parameters of the weightlessness metering device and the water-feeding flow meter 24 in real time, compares the ratio parameters, and adjusts the rotating speed of the corresponding electric screw feeder 6 and 7 until the requirements are met; similarly, if the powder-liquid ratio is higher than the set parameters, the programmable controller controls the frequency converter to reduce the rotating speeds of the corresponding electric screw feeders 6 and 7, collects the parameters of the weightlessness metering device and the water feeding flow meter 24 in real time, compares the ratio parameters, and adjusts the rotating speeds of the corresponding electric screw feeders 6 and 7 until the requirements are met. The powder-liquid ratio control flow is shown in fig. 4.
The electrically-driven fracturing fluid continuous mixing sledge provided by the invention has two powdering modes:
(1) continuous powdering mode:
this thoughtlessly join in marriage sledge powder supply system adopts two measurement conveying system. The powder storage tank is provided with two powder storage tanks 5-1 and 5-2, the electric screw feeder is also provided with two powder storage tanks 6 and 7, and each powder storage tank is independently provided with an electronic scale. When the powder in one powder storage tank 5-1, 5-2 is used up, the mixing sledge is automatically switched to the first powder storage tank 5-1, 5-2 for metering, the cavity tanks 5-1, 5-2 can be used for powder adding operation, and the electronic scales 17-1, 17-2 adopted by the mixing sledge can be used for individually monitoring the weight loss of each cavity 5-1, 5-2, so that the programmable controller is not influenced by metering, the metering is accurate, and the proportioning calculation precision is high.
(2) Two material mode:
this thoughtlessly join in marriage sledge powder supply system adopts with two measurement conveying system. The powder storage tank is provided with two powder storage tanks 5-1 and 5-2, the electric screw feeder is also provided with two powder storage tanks 6 and 7, and each powder storage tank is independently provided with an electronic scale. The adopted electronic scales 17-1 and 17-2 can independently monitor the weight loss of each powder storage tank 5-1 and 5-2, so that different powder materials can be added into the two powder storage tanks 5-1 and 5-2 and can be independently metered and used.
The inner wall of the centrifugal degassing device 2 is provided with a spiral groove, the outlet end of the powder-liquid mixer 1 is provided with a nozzle, the nozzle is arranged along the tangential direction of the corresponding spiral groove so that high-speed fluid sprayed by the nozzle flows in the centrifugal degassing device 2 along the spiral groove, and gas is separated from the fluid when the fluid flows along the spiral groove; the bottom of the centrifugal degassing device 2 is provided with a plurality of through holes communicated with the mixing tank 8, and the fluid in the centrifugal degassing device 2 flows into the mixing tank 8 through the through holes; a partition plate for making the fluid flow up and down and a stirrer 9 for stirring the fluid are arranged in the mixing tank 8, and the fluid which enters the mixing tank 9 first is discharged by the discharge manifold 13.
The electrically-driven fracturing fluid continuous mixing sledge further comprises a bale breaker 10 and an electrically-driven feeding auger 11, wherein the bale breaker 10 is provided with a dust remover and comprises a bale breaking bin for containing unpacked powder, the lower end of the electrically-driven feeding auger 11 is aligned with an outlet of the bale breaking bin, an outlet at the upper end of the electrically-driven feeding auger 11 can rotate and can be aligned with one of the double chambers 5-1 and 5-2 of the powder storage tank 5, and the electrically-driven feeding auger 11 is connected with an electrically-driven feeding auger driving motor 11-1 so as to be driven by the operation of the electrically-driven feeding auger driving motor 11-1 and convey the powder in the bale breaking bin into one of the powder storage tanks 5-1 and 5-2. Under the action of the dust remover, dust cannot fly to pollute the environment when unpacking.
The electrically-driven fracturing fluid continuous mixing sledge further comprises a control room 14 and an operation table 15, wherein the operation table 15 is provided with a control panel and the programmable controller, and the programmable controller is connected with the control panel so that the control program and the control parameters of the programmable controller can be modified by operating the control panel. A transformer 21 and a motor driving device 22 are arranged in the control room 14, the motor driving device 22 is connected with an on-site (well site) power supply or a generator through the transformer 21, and the electric water feeding pump 3, the electric discharge pump 12, the stirrer 9, the double-electric screw feeders 6 and 7 and the electric feeding screw feeder 11 are driven to operate through the motor driving device 22 (a frequency converter).
According to the power supply condition of the field power supply or the generator, the programmable controller controls the transformer 21 to select one connection between the field power supply and the generator. Namely, the invention adopts a dual-power automatic switching power supply system.
Dual supply automatic switch-over indicates that be suitable for the automatic switch-over between well site net electricity and the generator power, the maloperation can not appear and arouse the accident, dual supply automatic switch-over power supply system can realize when the power of the same kind breaks down, can accomplish automatically and switch between commonly used and stand-by power supply, guarantees to join in marriage the sledge and continue work, need not manual operation, is a perfect performance, degree of automation is high, safe and reliable's dual supply automatic switching mode to ensure that the electricity drives to join in marriage the continuous, reliable operation of blending vehicle.
The electric upper water pump 3 is connected to an electric upper water pump driving motor 3-1 so as to be driven by the operation of the electric upper water pump driving motor 3-1, the electric discharge pump 12 is connected to an electric discharge pump driving motor 12-1 so as to be driven by the operation of the electric discharge pump driving motor 12-1, the agitator 9 is connected to an agitator driving motor 9-1 so as to be driven by the operation of the agitator driving motor 9-1, and each of the electric screw feeders 6, 7 is connected to an electric screw feeder driving motor 6-1, 7-1 so as to be driven by the operation of the electric screw feeder driving motors 6-1, 7-1; the motor driving device 22 is connected with the electric water feeding pump driving motor 3-1, the electric discharge pump driving motor 12-1, the stirrer driving motor 9-1, the electric screw feeder driving motors 6-1 and 7-1 and the electric feeding auger driving motor 11-1 in a one-to-one correspondence manner, and is used for respectively driving the corresponding motors to operate.
The electrically-driven fracturing fluid continuous mixing sledge further comprises a temperature sensor, electric heat-preservation heating devices 16, 18 and 19 are arranged on the water feeding manifold 4, the discharge manifold 13 and the mixing tank 8, and the programmable controller is connected with the temperature sensor and the electric heat-preservation heating devices 16, 18 and 19 and used for regulating and controlling the heat preservation or heating temperature of the electric heat-preservation heating devices 16, 18 and 19 correspondingly according to the temperature monitored by the temperature sensor.
The powder is guar gum, and after the guar gum is added into water, the swelling process is as follows: infiltration-molecular chain stretching, which is affected by the fineness of guar gum, stirring intensity and water temperature. Through field tests, the water temperature is over ten degrees, the liquid preparation effect is good, the swelling time is short, and in order to cope with construction under the low water temperature working condition, electric heat-preservation heating devices 16, 18 and 19 are additionally arranged on the mixing sledge manifolds 4 and 13 and the mixing tank 8. Electric heat-insulating heating devices 16, 18 and 19 are arranged in the manifolds 4 and 13 and the mixing tank 8, when the measured temperature is lower than ten ℃, the electric heat-insulating heating devices 16, 18 and 19 automatically start to work until the temperature reaches the requirement, and the temperature can be automatically maintained. And the temperature is higher, the viscosity of the discharged liquid of the discharge manifold can be improved, and sand carrying operation is facilitated.
The programmable controller is in two-way communication with the remote control end through the switch, so that the control program and the control parameters of the programmable controller can be modified by operating the remote control end, and the programmable controller can transmit various operation parameters of the electrically-driven fracturing fluid continuous mixing sledge to the remote control end in real time.
The switch is provided with a wireless access point, a point-to-point working mode is adopted to send a control command, the control command is transmitted to the programmable controller on the mixing sledge, the anti-interference capability is strong, the advanced wireless communication technology ensures reliable transmission, the transmission distance is long, all parameters are automatically set by a program, and complex setting is avoided. Construction data real-time monitoring, remote wireless/wired access mode freely selects, and the access is convenient for one-click type access. The high-power wireless signal covers the whole operation field, and signal shielding and interference are avoided. All operations of construction can be completed on the remote terminal.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. The utility model provides an electricity drives fracturing fluid and mixes sled in succession which characterized in that: the system comprises a double-weightlessness metering feeding unit, a hydration unit, a mixing unit connected with the double-weightlessness metering feeding unit and the hydration unit, and a programmable controller, wherein the mixing unit comprises a powder-liquid mixer for mixing powder and liquid into fluid, a water feeding manifold connected with the powder-liquid mixer for injecting clean water into the powder-liquid mixer, a pipeline for guiding powder into the powder mixer, and a centrifugal degassing device for receiving the fluid guided into the powder mixer, the weightlessness metering feeding unit is provided with a weightlessness metering device for metering the weightlessness quantity of the weightlessness metering device, each weightlessness metering feeding unit outputs the weightlessness of the powder through the pipeline, the hydration unit comprises a mixing tank communicated with the inside of the centrifugal degassing device, the lower end of the mixing tank is provided with a discharge manifold for discharging the fluid in the mixing tank through the discharge manifold, the water feeding manifold is connected with an electric water feeding pump, and the water feeding manifold is provided with a water feeding flow meter for monitoring the water feeding flow, the discharge manifold is connected with the electric discharge pump and is provided with a discharge flowmeter for monitoring discharge flow; the programmable controller is connected with the weightlessness metering device and the water feeding flow meter, and is simultaneously connected with the electric water feeding pump and the electric discharge pump, so that the rotating speeds of the electric water feeding pump and the electric discharge pump are regulated and controlled according to the weightlessness quantity and the water feeding flow, and the loss weight and the water feeding flow meet the powder-liquid ratio; the programmable controller is connected with the liquid level meter and the electric discharge pump and is used for regulating and controlling the rotating speed of the electric water feeding pump and the electric discharge pump according to the liquid level height so as to maintain the liquid level height on a set liquid level parameter; the dual weightlessness measurement feeding units are two sets of weightlessness measurement feeding units which are relatively independent, and each set of weightlessness measurement feeding unit comprises a powder storage tank with a powder inlet, an electric screw feeder corresponding to the powder storage tank outlet and a weightlessness measurement device; the weight loss metering device is an electronic scale, and each powder storage tank corresponds to a set of electronic scale for monitoring the weight loss of the powder storage tank, so that the weight lost by each powder storage tank can be independently monitored; the two powder storage tanks are close to each other but do not contact with each other; the receiving hopper is positioned under the two electric screw feeders and can simultaneously receive powder output by the two electric screw feeders, and the electric screw feeders are connected with the pipeline through the outlet of the receiving hopper to realize the connection between the electric screw feeders and the pipeline; the pipeline is the hose the sledge is thoughtlessly joined in marriage to electricity drive fracturing fluid still includes temperature sensor, all be equipped with electric heat preservation heating device on last water supply manifold, discharge manifold and the blending tank, programmable controller connects temperature sensor with electric heat preservation heating device for the temperature according to the temperature that temperature sensor monitored regulates and control correspondingly electric heat preservation heating device's heat preservation or the temperature of heating.
2. The electrically driven fracturing fluid continuous compounding sled of claim 1, wherein: the inner wall of the centrifugal degassing device is provided with a spiral groove, the outlet end of the powder-liquid mixer is provided with a nozzle, and the nozzle is arranged along the tangential direction of the corresponding spiral groove so that high-speed fluid sprayed by the nozzle flows in the centrifugal degassing device along the spiral groove, and gas is separated from the fluid when the fluid flows along the spiral groove; the bottom of the centrifugal degassing device is provided with a plurality of through holes communicated with the mixing tank, and the fluid in the centrifugal degassing device flows into the mixing tank through the through holes; the mixing tank is internally provided with a clapboard which enables the fluid to flow up and down and a stirrer for stirring the fluid, and the fluid which enters the mixing tank firstly is discharged by the discharge manifold.
3. The electrically driven fracturing fluid continuous compounding sled of claim 2, wherein: the sledge is thoughtlessly joined in marriage to electricity drive fracturing fluid still include bale breaker and electronic material loading screw feeder, the bale breaker has the dust remover, and including the bale breaking storehouse of acceping the powder after the bale breaking, the lower extreme of electronic material loading screw feeder is aimed at the export in bale breaking storehouse, the export of electronic material loading screw feeder can rotate, can aim at one of two powder storage tanks, thereby electronic material loading screw feeder is connected electronic material loading screw feeder driving motor can by electronic material loading screw feeder driving motor's operation drive, and with in the any one powder storage tank of powder conveying in the bale breaking storehouse.
4. The electrically driven fracturing fluid continuous compounding sled of claim 3, wherein: the electrically-driven fracturing fluid continuous mixing sledge further comprises a control room and an operation table, wherein a control panel and the programmable controller are arranged on the operation table, and the programmable controller is connected with the control panel so that a control program and control parameters of the programmable controller can be modified by operating the control panel; a transformer and a motor driving device are arranged in the control chamber, the motor driving device is connected with an on-site power supply or a generator through the transformer, and the motor driving device is used for driving the electric water feeding pump, the electric discharge pump, the stirrer, the double-electric screw feeder and the electric feeding auger to operate; and according to the power supply condition of the field power supply or the generator, the programmable controller controls the transformer to select one of the field power supply and the generator.
5. The electrically driven fracturing fluid continuous compounding sled of claim 4, wherein: the electric water feeding pump is connected with an electric water feeding pump driving motor so as to be driven by the operation of the electric water feeding pump driving motor, the electric discharge pump is connected with an electric discharge pump driving motor so as to be driven by the operation of the electric discharge pump driving motor, the stirrer is connected with a stirrer driving motor so as to be driven by the operation of the stirrer driving motor, and each electric screw feeder is connected with an electric screw feeder driving motor so as to be driven by the operation of the electric screw feeder driving motor; the motor driving device is connected with the electric water feeding pump driving motor, the electric discharge pump driving motor, the stirrer driving motor, the electric screw feeder driving motor and the electric feeding auger driving motor in a one-to-one correspondence manner and used for respectively driving the corresponding motors to operate.
6. The electrically driven fracturing fluid continuous compounding sled of claim 1, wherein: the programmable controller is in two-way communication with the remote control end through the switch, so that the control program and the control parameters of the programmable controller can be modified by operating the remote control end, and the programmable controller can transmit various operation parameters of the electrically-driven fracturing fluid continuous mixing sledge to the remote control end in real time.
CN201811614076.8A 2018-12-27 2018-12-27 Electric-drive continuous fracturing fluid blending sledge Active CN109796956B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021012133A1 (en) * 2019-07-20 2021-01-28 烟台杰瑞石油装备技术有限公司 Electric drive compounding device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102003167A (en) * 2010-11-18 2011-04-06 四机赛瓦石油钻采设备有限公司 Automatic blending control method of oil field fracturing fluid
CN102423655A (en) * 2011-12-30 2012-04-25 北京矿冶研究总院 High-flow fracturing fluid distribution system and method
CN202506322U (en) * 2012-02-16 2012-10-31 中国海洋石油总公司 Continuous proportioning and blending device for fracturing fluid
EP2323754B1 (en) * 2008-07-30 2014-04-16 Halliburton Energy Services, Inc. Device and method for blending a dry material with a fluid in an environmentally closed system
CN203862190U (en) * 2014-05-22 2014-10-08 北京神州卓越石油科技有限公司 Skid-mounted continuous fracturing-liquid blending device
CN104437229A (en) * 2014-10-10 2015-03-25 中国石油天然气集团公司 Electric-driven liquid-powder continuous mixing device
CN204447897U (en) * 2015-01-17 2015-07-08 四机赛瓦石油钻采设备有限公司 The adjustable fracturing fluid continuous mixing device of a kind of discharge capacity
CN206577705U (en) * 2017-01-22 2017-10-24 温康 Can vehicle-mounted or sled block installation the continuous mixing device of pulvis fracturing fluid

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6193402B1 (en) * 1998-03-06 2001-02-27 Kristian E. Grimland Multiple tub mobile blender
CA2550988C (en) * 2006-06-23 2008-12-30 Thomas E. Allen Gel mixing system
US20140262338A1 (en) * 2013-03-15 2014-09-18 Schlumberger Technology Corporation Blender system with multiple stage pumps
CN203778009U (en) * 2014-01-08 2014-08-20 北京神州卓越石油科技有限公司 Fracturing fluid blending device
CN103726821B (en) * 2014-01-08 2016-08-17 北京神州卓越石油科技有限公司 Acidizing and fracturing fluid continuous mixture feeder
CN104147951A (en) * 2014-07-23 2014-11-19 中国石油集团渤海钻探工程有限公司 Continuous fracturing fluid blending method and continuous fracturing fluid blending equipment for hydraulic fracturing
CN204891787U (en) * 2015-08-25 2015-12-23 中国石油集团渤海钻探工程有限公司 Large -traffic liquid system of joining in marriage in succession of fracturing fluid that hydraulic fracturing used
CN207795214U (en) * 2018-01-16 2018-08-31 克拉玛依市三达新技术股份有限公司 Inverted discharged pressing crack liquid re-injection device
CN207999593U (en) * 2018-03-12 2018-10-23 兰州兰石集团有限公司 Frame-type electric drive pressure break prying body

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2323754B1 (en) * 2008-07-30 2014-04-16 Halliburton Energy Services, Inc. Device and method for blending a dry material with a fluid in an environmentally closed system
CN102003167A (en) * 2010-11-18 2011-04-06 四机赛瓦石油钻采设备有限公司 Automatic blending control method of oil field fracturing fluid
CN102423655A (en) * 2011-12-30 2012-04-25 北京矿冶研究总院 High-flow fracturing fluid distribution system and method
CN202506322U (en) * 2012-02-16 2012-10-31 中国海洋石油总公司 Continuous proportioning and blending device for fracturing fluid
CN203862190U (en) * 2014-05-22 2014-10-08 北京神州卓越石油科技有限公司 Skid-mounted continuous fracturing-liquid blending device
CN104437229A (en) * 2014-10-10 2015-03-25 中国石油天然气集团公司 Electric-driven liquid-powder continuous mixing device
CN204447897U (en) * 2015-01-17 2015-07-08 四机赛瓦石油钻采设备有限公司 The adjustable fracturing fluid continuous mixing device of a kind of discharge capacity
CN206577705U (en) * 2017-01-22 2017-10-24 温康 Can vehicle-mounted or sled block installation the continuous mixing device of pulvis fracturing fluid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
压裂液连续混配装置现状及发展;彭平生;《石油和化工设备》;20160515;16-18 *

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