CN102913430A - Simulation test method and simulation test system of heavy oil conveying screw pump - Google Patents
Simulation test method and simulation test system of heavy oil conveying screw pump Download PDFInfo
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- CN102913430A CN102913430A CN201110228671XA CN201110228671A CN102913430A CN 102913430 A CN102913430 A CN 102913430A CN 201110228671X A CN201110228671X A CN 201110228671XA CN 201110228671 A CN201110228671 A CN 201110228671A CN 102913430 A CN102913430 A CN 102913430A
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Abstract
The invention discloses a simulation test method and a simulation test system of a heavy oil conveying screw pump. The simulation test method comprises the steps that input experiment parameters and experiment data are received; a virtual motor model and a motor variable-frequency control running model are established according to the experiment parameters, the parameters of a heavy oil gathering-transporting running environment are obtained and a screw pump working efficiency computing model is established; a virtual running environment of the heavy oil conveying screw pump is established according to the virtual motor model, the motor variable-frequency control running model, the parameters of the heavy oil gathering-transporting running environment and the screw pump working efficiency calculating model; and the experiment data are run under the virtual running environment of the screw pump, and an experiment data is output. The simulation test method and the simulation test system have the advantages that by utilizing a computer software technology, the virtual running environment of the heavy oil conveying screw pump is simulated with the help of externally input screw pump working parameters and the established working model, thereby realizing real-object-detached test and management of the performance of the heavy oil conveying screw pump in heavy oil conveying engineering.
Description
Technical field
The present invention relates to field of computer technology, more particularly, relate to a kind of heavy oil transportation screw pump analog detection method and system.
Background technique
At present, each oil-field thick-oil physical property is different both at home and abroad, carries mainly take screw pump as main.Be the transportation performance of test screw pump in carrying specific viscous crude, the experimental technique of employing mainly contains following two classes:
The one, manufacturer finishes test by screw pump.At present, all have the screw pump performance experiment table in relatively large screw pump manufacturer, can finish the testing property of the aspects such as screw pump structure, material behavior, conveying characteristic.But because experimental cost and device-restrictive, producer's experiment fed sheet of a media mainly adopts clear water and conventional machinery oil, can't test the characteristic of screw pump in different heavy oil transportation, cause that screw pump equipment failure rate in field use is high, efficient is low, pump detection period is short, the transport of thick oil cost rises, degradation under the economic benefit.
The 2nd, finish test at Oil Field.For improving the transfer efficiency of screw pump in heavy oil transportation, the minority oil field is dropped into huge fund and at the specific oil recovery well construction of Oil Field dedicated experiments device the screw pump performance is tested, and mainly comprises screw pump transfer efficiency, screw pump energy-saving effect etc.Because the fed sheet of a media that the Oil Field experiment is adopted is specific viscous crude, can test comparatively truly to a certain extent the conveying characteristic of screw pump, for screw pump type selecting, application, maintenance, repair provide strong guidance.But each oil-field thick-oil physical property is different, even same oil field different blocks, different oil recovery well viscous crude physical difference are larger, so experimental result can only reflect the conveying characteristic of screw pump in the local heavy oil transportation in oil field, has significant limitation.
In addition, the following problem that also exists of traditional heavy oil transportation screw pump testing property:
(1) the experimental facilities construction cost is expensive.Producer is difficult to set up comparatively comprehensively screw pump Performance Test System.
(2) experimental cost is high.Reach the full test effect, the viscous crude that needs to allocate and transport different physical property from the different blocks in different oil fields, same oil field is tested.
(3) experimental period long, cause the experiment operating cost too high.
Summary of the invention
Technical problem to be solved by this invention is the defective for prior art, proposes a kind of heavy oil transportation screw pump analog detection method and system, in order to realize that the heavy oil transportation screw pump performance of heavy oil transportation engineering is broken away from object test and management.
In order to solve the problems of the technologies described above, the invention provides a kind of heavy oil transportation screw pump analog detection method, comprising:
Input step receives experiment parameter and the laboratory data of input, and described experiment parameter comprises experiment type number, electric plane No., VFC style number, viscous crude physical property number and screw rod pump number;
The working model establishment step according to described experiment parameter, is set up virtual motor model and motor frequency conversion controlling run model, obtains heavy oil gathering running environment parameter, sets up screw pump working efficiency computation model;
The running environment establishment step according to described virtual motor model, motor frequency conversion controlling run model, heavy oil gathering running environment parameter and screw pump working efficiency computation model, is set up heavy oil transportation screw pump virtual operation environment;
The output step, the described laboratory data of operation under described screw pump virtual operation environment, output experimental result.
Further, described working model establishment step comprises:
Virtual motor model establishment step according to described electric plane No., is transferred motor characteristic parameter and motor indicatrix from motor operation characteristic storehouse, set up virtual motor model;
Motor frequency conversion controlling run model establishment step, according to described VFC style number, from the VFC feature database, transfer VFC characteristic parameter and VFC indicatrix, set up motor frequency conversion controlling run model in conjunction with described VFC characteristic parameter, VFC indicatrix and described virtual motor model;
Heavy oil gathering running environment parameter acquiring step according to described viscous crude physical property number, is transferred viscous crude physical property characteristic parameter and viscous crude physical property characteristic curve from viscous crude physical property characteristic storehouse, obtain heavy oil gathering running environment parameter;
Screw pump working efficiency computation model establishment step, according to described screw rod pump number, from screw pump operation characteristic storehouse, transfer screw pump characteristic parameter and screw pump indicatrix, in conjunction with described screw pump characteristic parameter, screw pump indicatrix, described motor characteristic parameter, motor indicatrix and described heavy oil gathering running environment parameter, set up screw pump working efficiency computation model.
Further, described virtual motor model establishment step comprises:
According to described electric plane No., from motor operation characteristic storehouse, transfer motor model, power of motor, motor rated power, power factor, voltage rating, rated speed and torque-speed curve, efficient-load factor curve, efficient-power factor curve;
According to the motor characteristic parameter of transferring and motor indicatrix, in conjunction with the electric efficiency formula, set up motor power input to machine and output power calculating model, i.e. virtual motor model under certain working condition.
Further, described motor frequency conversion controlling run model establishment step comprises:
According to described VFC style number, from the VFC feature database, transfer frequency variator model, transducer power, frequency variator rated power and frequency-motor speed curve;
According to the VFC characteristic parameter of transferring and VFC indicatrix, set up electric efficiency and frequency variator output electric weight frequency computation part model, i.e. motor frequency conversion controlling run model.
Further, described heavy oil gathering running environment parameter acquiring step comprises:
According to described viscous crude physical property number, from viscous crude physical property characteristic storehouse, transfer discharge pressure, feed flow, density, viscosity, moisture content and temperature-viscosity curve, viscosity-plot of water cut, viscosity-density curve;
According to the viscous crude physical property characteristic parameter of transferring and viscous crude physical property characteristic curve, obtain different viscosities, different temperatures, the corresponding heavy oil gathering running environment parameter of different water cut experimental condition.
Further, described screw pump working efficiency computation model establishment step comprises:
According to described screw rod pump number, from screw pump operation characteristic storehouse, transfer screw pump model, screw pump power, screw pump rated power, working pressure, screw pump rated flow, volumetric efficiency and flow-pressure diagram, efficient-flow curve, efficient-pressure diagram;
In conjunction with described screw pump characteristic parameter, screw pump indicatrix, described motor characteristic parameter, motor indicatrix and described heavy oil gathering running environment parameter, set up screw pump screw pump input power and output power calculating model, i.e. screw pump working efficiency computation model under certain working condition.
Further, also comprise after described input step: configuration and transition experiment data deposit the laboratory data after the conversion in buffer area.
The present invention also provides a kind of heavy oil transportation screw pump simulated testing system, comprising:
The laboratory data load module be used for to receive experiment parameter and the laboratory data of input, and described experiment parameter comprises experiment type number, electric plane No., VFC style number, viscous crude physical property number and screw rod pump number;
The motor characteristic module is used for according to described experiment parameter, sets up virtual motor model and motor frequency conversion controlling run model;
The screw pump personality modnies, be used for obtaining heavy oil gathering running environment parameter, set up screw pump working efficiency computation model, according to described virtual motor model, motor frequency conversion controlling run model, heavy oil gathering running environment parameter and screw pump working efficiency computation model, set up heavy oil transportation screw pump virtual operation environment;
The experimental result output module is used for the described laboratory data of operation under described screw pump virtual operation environment, the output experimental result.
Further, described system also comprises: motor operation characteristic storehouse and VFC feature database;
Described motor characteristic module comprises: virtual motor model is set up the unit, is used for according to described electric plane No., transfers motor characteristic parameter and motor indicatrix from motor operation characteristic storehouse, sets up virtual motor model; Motor frequency conversion controlling run model is set up the unit, be used for according to described VFC style number, from the VFC feature database, transfer VFC characteristic parameter and VFC indicatrix, set up motor frequency conversion controlling run model in conjunction with described VFC characteristic parameter, VFC indicatrix and described virtual motor model.
Further, described system also comprises: viscous crude physical property characteristic storehouse and screw pump operation characteristic storehouse;
Described screw pump personality modnies comprises: heavy oil gathering running environment parameter acquiring unit, be used for from viscous crude physical property characteristic storehouse, transferring viscous crude physical property characteristic parameter and viscous crude physical property characteristic curve according to described viscous crude physical property number, and obtain heavy oil gathering running environment parameter; Screw pump working efficiency computation model is set up the unit, be used for according to described screw rod pump number, from screw pump operation characteristic storehouse, transfer screw pump characteristic parameter and screw pump indicatrix, in conjunction with described screw pump characteristic parameter, screw pump indicatrix, described motor characteristic parameter, motor indicatrix and described heavy oil gathering running environment parameter, set up screw pump working efficiency computation model; Running environment is set up the unit, is used for according to described virtual motor model, motor frequency conversion controlling run model, heavy oil gathering running environment parameter and screw pump working efficiency computation model, sets up heavy oil transportation screw pump virtual operation environment.
Further, described virtual motor model is set up the unit and specifically is used for according to described electric plane No., transfers motor model, power of motor, motor rated power, power factor, voltage rating, rated speed and torque-speed curve, efficient-load factor curve, efficient-power factor curve from motor operation characteristic storehouse; According to the motor characteristic parameter of transferring and motor indicatrix, in conjunction with the electric efficiency formula, set up motor power input to machine and output power calculating model, i.e. virtual motor model under certain working condition.
Further, described motor frequency conversion controlling run model is set up the unit and specifically is used for according to described VFC style number, transfers frequency variator model, transducer power, frequency variator rated power and frequency-motor speed curve from the VFC feature database; According to the VFC characteristic parameter of transferring and VFC indicatrix, set up electric efficiency and frequency variator output electric weight frequency computation part model, i.e. motor frequency conversion controlling run model.
Further, described heavy oil gathering running environment parameter acquiring unit specifically is used for transferring discharge pressure, feed flow, density, viscosity, moisture content and temperature-viscosity curve, viscosity-plot of water cut, viscosity-density curve according to described viscous crude physical property number from viscous crude physical property characteristic storehouse; According to the viscous crude physical property characteristic parameter of transferring and viscous crude physical property characteristic curve, obtain different viscosities, different temperatures, the corresponding heavy oil gathering running environment parameter of different water cut experimental condition.
Further, described screw pump working efficiency computation model is set up the unit and specifically is used for according to described screw rod pump number, transfers screw pump model, screw pump power, screw pump rated power, working pressure, screw pump rated flow, volumetric efficiency and flow-pressure diagram, efficient-flow curve, efficient-pressure diagram from screw pump operation characteristic storehouse; In conjunction with described screw pump characteristic parameter, screw pump indicatrix, described motor characteristic parameter, motor indicatrix and described heavy oil gathering running environment parameter, set up screw pump screw pump input power and output power calculating model, i.e. screw pump working efficiency computation model under certain working condition.
Further, described system also comprises: modular converter, be used for configuration and transition experiment data, and deposit the laboratory data after the conversion in buffer area.
The present invention utilizes computer software technology, simulate heavy oil transportation screw pump virtual operation environment by the screw pump running parameter of outside input and the working model of foundation, thereby realize the screw pump performance test under the variable working condition condition, effectively solved build actual heavy oil transportation screw pump experimental system can not realization property, realized the heavy oil transportation screw pump performance of heavy oil transportation engineering is broken away from object test and management.
Description of drawings
Fig. 1 is heavy oil transportation screw pump analog detection method one embodiment's provided by the invention flow chart;
Fig. 2 is heavy oil transportation screw pump simulated testing system one embodiment's provided by the invention schematic diagram.
Embodiment
The deficiency that the present invention is directed to prior art screw pump experimental setup technology and operation provides a kind of use simple, applied widely and easy to operate, safe and reliable, more energy-conservation than the normal experiment mode heavy oil transportation screw pump analog detection method and system, the method and system adopt computer software technology, can implement comprehensive integration testing to heavy oil transportation screw pump conveying characteristic.Core concept of the present invention is: at first receive experiment parameter and the laboratory data of input, described experiment parameter comprises experiment type number, electric plane No., VFC style number, viscous crude physical property number and screw rod pump number; According to described experiment parameter, set up virtual motor model and motor frequency conversion controlling run model, obtain heavy oil gathering running environment parameter, set up screw pump working efficiency computation model; According to described virtual motor model, motor frequency conversion controlling run model, heavy oil gathering running environment parameter and screw pump working efficiency computation model, set up heavy oil transportation screw pump virtual operation environment; The described laboratory data of operation under described screw pump virtual operation environment, the output experimental result.The present invention utilizes computer software technology, simulate heavy oil transportation screw pump virtual operation environment by the screw pump running parameter of outside input and the working model of foundation, thereby realize the screw pump performance test under the variable working condition condition, effectively solved build actual heavy oil transportation screw pump experimental system can not realization property, the heavy oil transportation screw pump performance of having finished the heavy oil transportation engineering breaks away from object test and management.
Below in conjunction with accompanying drawing and preferred implementation technical solution of the present invention is elaborated.
Fig. 1 is heavy oil transportation screw pump analog detection method one embodiment's provided by the invention flow chart.As shown in Figure 1, the present embodiment may further comprise the steps:
Step 101, input step: the experiment parameter and the laboratory data that receive input.
Obtain from the system outside with testing relevant input message is set, comprise experiment parameter and laboratory data, wherein experiment parameter comprises experiment type number, electric plane No., VFC style number, viscous crude physical property number and screw rod pump number, laboratory data comprises screw pump experiment operating conditions, i.e. viscosity of thickened oil scope, the moisture scope of viscous crude, viscous crude temperature range etc.
Step 102, configuration and switch process: configuration and transition experiment data deposit the laboratory data after the conversion in buffer area.
According to requirement of experiment, laboratory data need to be configured and change, namely change into screw pump and system effectiveness factor of influence, so that by this experimental model operation, calculate the screw pump system actual operating efficiency.
After getting access to experiment parameter and laboratory data, according to this experiment parameter, set up virtual motor model and motor frequency conversion controlling run model, obtain heavy oil gathering running environment parameter, set up screw pump working efficiency computation model, i.e. execution work model establishment step.Further, this working model establishment step specifically may further comprise the steps 103-step 106.
Step 103, virtual motor model establishment step: according to electric plane No., from motor operation characteristic storehouse, transfer motor characteristic parameter and motor indicatrix, set up virtual motor model.
Motor operation characteristic storehouse is the database of setting up in advance, and this motor operation characteristic storehouse comprises motor type, motor model, motor electric parameter, the information such as motor output Placement, mechanical characteristics of motor curve and motor electrical characteristic curve.The motor characteristic parameter of transferring from this motor operation characteristic storehouse comprises motor model, power of motor, motor rated power, power factor, voltage rating, rated speed, and the motor indicatrix of transferring comprises torque-speed curve, efficient-load factor curve, efficient-power factor curve.
In this step, according to the motor characteristic parameter of transferring and motor indicatrix, in conjunction with the electric efficiency formula, set up motor power input to machine and output power calculating model, i.e. virtual motor model under certain working condition.
Step 104, motor frequency conversion controlling run model establishment step: according to the VFC style number, from the VFC feature database, transfer VFC characteristic parameter and VFC indicatrix, set up motor frequency conversion controlling run model in conjunction with VFC characteristic parameter, VFC indicatrix and virtual motor model.
The VFC feature database is the database of setting up in advance, and this VFC feature database comprises VFC mode, frequency variator model, transducer operational parameter, frequency variator characteristic curve and the hardware information that configures.The VFC characteristic parameter of transferring from the VFC feature database comprises: frequency variator model, transducer power, frequency variator rated power, the VFC indicatrix of transferring comprises: frequency-motor speed curve.
In this step, according to the VFC characteristic parameter of transferring and VFC indicatrix, set up electric efficiency and frequency variator output electric weight frequency computation part model, i.e. motor frequency conversion controlling run model.The motor input determines electric efficiency with output, but VFC can produce additional effect to electric efficiency, and namely needing to be informed under certain VFC condition affects amplitude to electric efficiency.
Step 105, heavy oil gathering running environment parameter acquiring step: according to viscous crude physical property number, from viscous crude physical property characteristic storehouse, transfer viscous crude physical property characteristic parameter and viscous crude physical property characteristic curve, obtain heavy oil gathering running environment parameter.
Viscous crude physical property characteristic storehouse is the database of setting up in advance, and this viscous crude physical property characteristic storehouse comprises the information such as viscosity of thickened oil, viscous crude moisture content, heavy oil transportation temperature, temperature-viscosity curve, viscosity-plot of water cut, viscosity-density curve.The viscous crude physical property characteristic parameter of transferring from viscous crude physical property characteristic storehouse comprises: discharge pressure, feed flow, density, viscosity, moisture content, the viscous crude physical property characteristic curve of transferring comprises: temperature-viscosity curve, viscosity-plot of water cut, viscosity-density curve.
In this step, according to the viscous crude physical property characteristic parameter of transferring and viscous crude physical property characteristic curve, obtain different viscosities, different temperatures, the corresponding heavy oil gathering running environment parameter of different water cut experimental condition.
Step 106, screw pump working efficiency computation model establishment step: according to the screw rod pump number, from screw pump operation characteristic storehouse, transfer screw pump characteristic parameter and screw pump indicatrix, in conjunction with screw pump characteristic parameter, screw pump indicatrix, motor characteristic parameter, motor indicatrix and heavy oil gathering running environment parameter, set up screw pump working efficiency computation model.
Screw pump operation characteristic storehouse is the database of setting up in advance, and this screw pump operation characteristic storehouse comprises screw pump structure type, screw pump model, screw pump nameplate parameter, screw pump input Placement, screw pump mechanical characteristic and working characteristic curve of screw pump.The screw pump characteristic parameter of transferring from screw pump operation characteristic storehouse comprises: screw pump model, screw pump power, screw pump rated power, working pressure, screw pump rated flow, volumetric efficiency, the screw pump indicatrix of transferring comprises: flow-pressure diagram, efficient-flow curve, efficient-pressure diagram.
In this step, in conjunction with screw pump characteristic parameter, screw pump indicatrix, motor characteristic parameter, motor indicatrix and heavy oil gathering running environment parameter, set up screw pump screw pump input power and output power calculating model, i.e. screw pump working efficiency computation model under certain working condition.
After step 106, can check the whether correct of above-mentioned working model establishment step execution, as incorrect, then re-execute; As correctly, then execution in step 107.
Step 107, running environment establishment step: according to virtual motor model, motor frequency conversion controlling run model, heavy oil gathering running environment parameter and screw pump working efficiency computation model, set up heavy oil transportation screw pump virtual operation environment.
In real system, frequency variator, motor, screw pump and viscous crude are to link together by machinery or electrical form.In order to reflect truth, in the dry run environment, the model of setting up is connected, form a complete running environment.Frequency variator is input as system's input in this heavy oil transportation screw pump virtual operation environment, and frequency variator is output as the motor input, and motor is output as the screw pump input, and screw pump is output as system's output.To input, to be output as tie point, the model that Connection Step 103, step 104, step 105, step 106 are calculated, i.e. heavy oil transportation screw pump virtual operation environment.
Step 108, under screw pump virtual operation environment the running experiment data, output experimental result.
The heavy oil transportation screw pump analog detection method that the present embodiment provides utilizes computer software technology, simulate heavy oil transportation screw pump virtual operation environment by the screw pump running parameter of outside input and the working model of foundation, realized the screw pump performance test under the variable working condition condition, thereby realized heavy oil transportation screw pump conveying characteristic is implemented comprehensive integration testing.The method of utilizing the present embodiment to provide, can effectively solve build actual heavy oil transportation screw pump experimental system can not realization property, the heavy oil transportation screw pump performance of having finished the heavy oil transportation engineering breaks away from object test and management.The method is simple, safety, reliable, has saved the consumption of field experiment human and material resources, guarantees the personnel health, safeguards and reduced cost by environment.The method advanced technology, easy to operate, directly perceived quick is conducive to each oil field and assesses fast and accurately heavy oil transportation screw pump conveying characteristic, is suitable for and applies.
Fig. 2 is heavy oil transportation screw pump simulated testing system one embodiment's provided by the invention schematic diagram.As shown in Figure 2, this system comprises: laboratory data load module 10, motor characteristic module 20, screw pump personality modnies 30 and experimental result output module 40.
Wherein, laboratory data load module 10 be used for to receive experiment parameter and the laboratory data of input, and experiment parameter comprises experiment type number, electric plane No., VFC style number, viscous crude physical property number and screw rod pump number; Motor characteristic module 20 is used for according to experiment parameter, sets up virtual motor model and motor frequency conversion controlling run model; Screw pump personality modnies 30, be used for obtaining heavy oil gathering running environment parameter, set up screw pump working efficiency computation model, according to virtual motor model, motor frequency conversion controlling run model, heavy oil gathering running environment parameter and screw pump working efficiency computation model, set up heavy oil transportation screw pump virtual operation environment; Experimental result output module 40 is used for running experiment data under screw pump virtual operation environment, the output experimental result.
Further, this system can comprise: motor operation characteristic storehouse 50 and VFC feature database 60.Said motor personality modnies 20 comprises: virtual motor model sets up unit 21 and motor frequency conversion controlling run model is set up unit 22.Virtual motor model is set up unit 21, is used for according to electric plane No., transfers motor characteristic parameter and motor indicatrix from motor operation characteristic storehouse 50, sets up virtual motor model; Motor frequency conversion controlling run model is set up unit 22, be used for according to the VFC style number, from VFC feature database 60, transfer VFC characteristic parameter and VFC indicatrix, set up motor frequency conversion controlling run model in conjunction with VFC characteristic parameter, VFC indicatrix and virtual motor model.
This system can also comprise: viscous crude physical property characteristic storehouse 70 and screw pump operation characteristic storehouse 80.Above-mentioned screw pump personality modnies 30 comprises: heavy oil gathering running environment parameter acquiring unit 31, screw pump working efficiency computation model sets up unit 32 and running environment is set up unit 33.Heavy oil gathering running environment parameter acquiring unit 31 is used for according to viscous crude physical property number, from viscous crude physical property characteristic storehouse 70, transfer viscous crude physical property characteristic parameter and viscous crude physical property characteristic curve, obtain heavy oil gathering running environment parameter, this heavy oil gathering running environment parameter acquiring unit 31 also is connected with laboratory data load module 10; Screw pump working efficiency computation model is set up unit 32 and is used for according to the screw rod pump number, from screw pump operation characteristic storehouse 80, transfer screw pump characteristic parameter and screw pump indicatrix, in conjunction with screw pump characteristic parameter, screw pump indicatrix, motor characteristic parameter, motor indicatrix and heavy oil gathering running environment parameter, set up screw pump working efficiency computation model, this screw pump working efficiency computation model is set up unit 32 and also is connected with laboratory data load module 10; Running environment is set up unit 33, is used for according to virtual motor model, motor frequency conversion controlling run model, heavy oil gathering running environment parameter and screw pump working efficiency computation model, sets up heavy oil transportation screw pump virtual operation environment.
Further, it is concrete for according to electric plane No. that virtual motor model is set up unit 21, transfers motor model, power of motor, motor rated power, power factor, voltage rating, rated speed and torque-speed curve, efficient-load factor curve, efficient-power factor curve from motor operation characteristic storehouse; According to the motor characteristic parameter of transferring and motor indicatrix, in conjunction with the electric efficiency formula, set up motor power input to machine and output power calculating model, i.e. virtual motor model under certain working condition.
It is concrete for according to the VFC style number that motor frequency conversion controlling run model is set up unit 22, transfers frequency variator model, transducer power, frequency variator rated power and frequency-motor speed curve from the VFC feature database; According to the VFC characteristic parameter of transferring and VFC indicatrix, set up electric efficiency and frequency variator output electric weight frequency computation part model, i.e. motor frequency conversion controlling run model.
Heavy oil gathering running environment parameter acquiring unit 31 is concrete to be used for transferring discharge pressure, feed flow, density, viscosity, moisture content and temperature-viscosity curve, viscosity-plot of water cut, viscosity-density curve according to viscous crude physical property number from viscous crude physical property characteristic storehouse; According to the viscous crude physical property characteristic parameter of transferring and viscous crude physical property characteristic curve, obtain different viscosities, different temperatures, the corresponding heavy oil gathering running environment parameter of different water cut experimental condition.
It is concrete for according to the screw rod pump number that screw pump working efficiency computation model is set up unit 32, transfers screw pump model, screw pump power, screw pump rated power, working pressure, screw pump rated flow, volumetric efficiency and flow-pressure diagram, efficient-flow curve, efficient-pressure diagram from screw pump operation characteristic storehouse; In conjunction with screw pump characteristic parameter, screw pump indicatrix, motor characteristic parameter, motor indicatrix and heavy oil gathering running environment parameter, set up screw pump screw pump input power and output power calculating model, i.e. screw pump working efficiency computation model under certain working condition.
This system can also comprise modular converter, is used for configuration and transition experiment data, deposits the laboratory data after the conversion in buffer area.This modular converter is connected with the experimental result output module with laboratory data load module 10 and is connected.
The heavy oil transportation screw pump simulated testing system that the present embodiment provides utilizes computer software technology, simulate heavy oil transportation screw pump virtual operation environment by the screw pump running parameter of outside input and the working model of foundation, realized the screw pump performance test under the variable working condition condition, thereby realized heavy oil transportation screw pump conveying characteristic is implemented comprehensive integration testing.The system that utilizes the present embodiment to provide, can effectively solve build actual heavy oil transportation screw pump experimental system can not realization property, the heavy oil transportation screw pump performance of having finished the heavy oil transportation engineering breaks away from object test and management.This system is simple, safety, reliable, has saved the consumption of field experiment human and material resources, guarantees the personnel health, safeguards and reduced cost by environment.This systems technology is advanced, easy to operate, directly perceived quick, is conducive to each oil field and assesses fast and accurately heavy oil transportation screw pump conveying characteristic, is suitable for and applies.
At last; it should be noted that: more than what enumerate only is specific embodiments of the invention sons; certainly those skilled in the art can change and modification the present invention; if these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, all should think protection scope of the present invention.
Claims (15)
1. a heavy oil transportation screw pump analog detection method is characterized in that, comprising:
Input step receives experiment parameter and the laboratory data of input, and described experiment parameter comprises experiment type number, electric plane No., VFC style number, viscous crude physical property number and screw rod pump number;
The working model establishment step according to described experiment parameter, is set up virtual motor model and motor frequency conversion controlling run model, obtains heavy oil gathering running environment parameter, sets up screw pump working efficiency computation model;
The running environment establishment step according to described virtual motor model, motor frequency conversion controlling run model, heavy oil gathering running environment parameter and screw pump working efficiency computation model, is set up heavy oil transportation screw pump virtual operation environment;
The output step, the described laboratory data of operation under described screw pump virtual operation environment, output experimental result.
2. method according to claim 1 is characterized in that, described working model establishment step comprises:
Virtual motor model establishment step according to described electric plane No., is transferred motor characteristic parameter and motor indicatrix from motor operation characteristic storehouse, set up virtual motor model;
Motor frequency conversion controlling run model establishment step, according to described VFC style number, from the VFC feature database, transfer VFC characteristic parameter and VFC indicatrix, set up motor frequency conversion controlling run model in conjunction with described VFC characteristic parameter, VFC indicatrix and described virtual motor model;
Heavy oil gathering running environment parameter acquiring step according to described viscous crude physical property number, is transferred viscous crude physical property characteristic parameter and viscous crude physical property characteristic curve from viscous crude physical property characteristic storehouse, obtain heavy oil gathering running environment parameter;
Screw pump working efficiency computation model establishment step, according to described screw rod pump number, from screw pump operation characteristic storehouse, transfer screw pump characteristic parameter and screw pump indicatrix, in conjunction with described screw pump characteristic parameter, screw pump indicatrix, described motor characteristic parameter, motor indicatrix and described heavy oil gathering running environment parameter, set up screw pump working efficiency computation model.
3. method according to claim 2 is characterized in that, described virtual motor model establishment step comprises:
According to described electric plane No., from motor operation characteristic storehouse, transfer motor model, power of motor, motor rated power, power factor, voltage rating, rated speed and torque-speed curve, efficient-load factor curve, efficient-power factor curve;
According to the motor characteristic parameter of transferring and motor indicatrix, in conjunction with the electric efficiency formula, set up motor power input to machine and output power calculating model, i.e. virtual motor model under certain working condition.
4. method according to claim 2 is characterized in that, described motor frequency conversion controlling run model establishment step comprises:
According to described VFC style number, from the VFC feature database, transfer frequency variator model, transducer power, frequency variator rated power and frequency-motor speed curve;
According to the VFC characteristic parameter of transferring and VFC indicatrix, set up electric efficiency and frequency variator output electric weight frequency computation part model, i.e. motor frequency conversion controlling run model.
5. method according to claim 2 is characterized in that, described heavy oil gathering running environment parameter acquiring step comprises:
According to described viscous crude physical property number, from viscous crude physical property characteristic storehouse, transfer discharge pressure, feed flow, density, viscosity, moisture content and temperature-viscosity curve, viscosity-plot of water cut, viscosity-density curve;
According to the viscous crude physical property characteristic parameter of transferring and viscous crude physical property characteristic curve, obtain different viscosities, different temperatures, the corresponding heavy oil gathering running environment parameter of different water cut experimental condition.
6. method according to claim 2 is characterized in that, described screw pump working efficiency computation model establishment step comprises:
According to described screw rod pump number, from screw pump operation characteristic storehouse, transfer screw pump model, screw pump power, screw pump rated power, working pressure, screw pump rated flow, volumetric efficiency and flow-pressure diagram, efficient-flow curve, efficient-pressure diagram;
In conjunction with described screw pump characteristic parameter, screw pump indicatrix, described motor characteristic parameter, motor indicatrix and described heavy oil gathering running environment parameter, set up screw pump screw pump input power and output power calculating model, i.e. screw pump working efficiency computation model under certain working condition.
7. method according to claim 1 is characterized in that, also comprises after described input step: configuration and transition experiment data deposit the laboratory data after the conversion in buffer area.
8. a heavy oil transportation screw pump simulated testing system is characterized in that, comprising:
The laboratory data load module be used for to receive experiment parameter and the laboratory data of input, and described experiment parameter comprises experiment type number, electric plane No., VFC style number, viscous crude physical property number and screw rod pump number;
The motor characteristic module is used for according to described experiment parameter, sets up virtual motor model and motor frequency conversion controlling run model;
The screw pump personality modnies, be used for obtaining heavy oil gathering running environment parameter, set up screw pump working efficiency computation model, according to described virtual motor model, motor frequency conversion controlling run model, heavy oil gathering running environment parameter and screw pump working efficiency computation model, set up heavy oil transportation screw pump virtual operation environment;
The experimental result output module is used for the described laboratory data of operation under described screw pump virtual operation environment, the output experimental result.
9. system according to claim 8 is characterized in that, also comprises: motor operation characteristic storehouse and VFC feature database;
Described motor characteristic module comprises:
Virtual motor model is set up the unit, is used for according to described electric plane No., transfers motor characteristic parameter and motor indicatrix from motor operation characteristic storehouse, sets up virtual motor model;
Motor frequency conversion controlling run model is set up the unit, be used for according to described VFC style number, from the VFC feature database, transfer VFC characteristic parameter and VFC indicatrix, set up motor frequency conversion controlling run model in conjunction with described VFC characteristic parameter, VFC indicatrix and described virtual motor model.
10. system according to claim 9 is characterized in that, also comprises: viscous crude physical property characteristic storehouse and screw pump operation characteristic storehouse;
Described screw pump personality modnies comprises:
Heavy oil gathering running environment parameter acquiring unit is used for transferring viscous crude physical property characteristic parameter and viscous crude physical property characteristic curve according to described viscous crude physical property number from viscous crude physical property characteristic storehouse, obtains heavy oil gathering running environment parameter;
Screw pump working efficiency computation model is set up the unit, be used for according to described screw rod pump number, from screw pump operation characteristic storehouse, transfer screw pump characteristic parameter and screw pump indicatrix, in conjunction with described screw pump characteristic parameter, screw pump indicatrix, described motor characteristic parameter, motor indicatrix and described heavy oil gathering running environment parameter, set up screw pump working efficiency computation model;
Running environment is set up the unit, is used for according to described virtual motor model, motor frequency conversion controlling run model, heavy oil gathering running environment parameter and screw pump working efficiency computation model, sets up heavy oil transportation screw pump virtual operation environment.
11. system according to claim 9, it is characterized in that, described virtual motor model is set up the unit and specifically is used for according to described electric plane No., transfers motor model, power of motor, motor rated power, power factor, voltage rating, rated speed and torque-speed curve, efficient-load factor curve, efficient-power factor curve from motor operation characteristic storehouse; According to the motor characteristic parameter of transferring and motor indicatrix, in conjunction with the electric efficiency formula, set up motor power input to machine and output power calculating model, i.e. virtual motor model under certain working condition.
12. system according to claim 9, it is characterized in that, described motor frequency conversion controlling run model is set up the unit and specifically is used for according to described VFC style number, transfers frequency variator model, transducer power, frequency variator rated power and frequency-motor speed curve from the VFC feature database; According to the VFC characteristic parameter of transferring and VFC indicatrix, set up electric efficiency and frequency variator output electric weight frequency computation part model, i.e. motor frequency conversion controlling run model.
13. system according to claim 10, it is characterized in that, described heavy oil gathering running environment parameter acquiring unit specifically is used for transferring discharge pressure, feed flow, density, viscosity, moisture content and temperature-viscosity curve, viscosity-plot of water cut, viscosity-density curve according to described viscous crude physical property number from viscous crude physical property characteristic storehouse; According to the viscous crude physical property characteristic parameter of transferring and viscous crude physical property characteristic curve, obtain different viscosities, different temperatures, the corresponding heavy oil gathering running environment parameter of different water cut experimental condition.
14. system according to claim 10, it is characterized in that, described screw pump working efficiency computation model is set up the unit and specifically is used for according to described screw rod pump number, transfers screw pump model, screw pump power, screw pump rated power, working pressure, screw pump rated flow, volumetric efficiency and flow-pressure diagram, efficient-flow curve, efficient-pressure diagram from screw pump operation characteristic storehouse; In conjunction with described screw pump characteristic parameter, screw pump indicatrix, described motor characteristic parameter, motor indicatrix and described heavy oil gathering running environment parameter, set up screw pump screw pump input power and output power calculating model, i.e. screw pump working efficiency computation model under certain working condition.
15. system according to claim 8 is characterized in that, also comprises: modular converter, be used for configuration and transition experiment data, deposit the laboratory data after the conversion in buffer area.
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| CN102913430B (en) | 2015-09-09 |
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