CN109085438A - Intelligent monitoring device and method based on electrical parameter real-time monitoring oil pumping system efficiency - Google Patents
Intelligent monitoring device and method based on electrical parameter real-time monitoring oil pumping system efficiency Download PDFInfo
- Publication number
- CN109085438A CN109085438A CN201811036093.8A CN201811036093A CN109085438A CN 109085438 A CN109085438 A CN 109085438A CN 201811036093 A CN201811036093 A CN 201811036093A CN 109085438 A CN109085438 A CN 109085438A
- Authority
- CN
- China
- Prior art keywords
- module
- power
- phase
- pumping
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a kind of intelligent monitoring devices and method based on electrical parameter real-time monitoring oil pumping system efficiency, fully consider the actual demand of oil field production, significant data in a variety of pumpingh well production processes is provided, such as Liquid output, power consumption, pump efficiency, system effectiveness, stop well record, key variables and the parameters such as motor items electrical parameter, every important parameter in pumping unit operational process can comprehensively be detected, the calculation of multiple parameters can voluntarily be selected according to demand simultaneously with user, evaluation criteria diversification, field engineer can be effectively assisted comprehensively to assess and diagnose the operating status of oil well.
Description
Technical field
The present invention relates to a kind of oil field measurement detection device and methods, and in particular to one kind is taken out based on electrical parameter real-time monitoring
The intelligent monitoring device of oil system efficiency.
Background technique
Petroleum Production has important role to the economic development in China.In actual oil extraction process, due to oil
The oil production equipments such as the pumping unit in field are all field work, and natural environment is complicated severe, and exploitation geological environment is changeable, and underground structure is multiple
It is miscellaneous, in addition the appearance of the harsh conditions such as wax, sand, gas and water and corrosion, oil well failure it occur frequently that, cause oil well working efficiency to drop
It is low.
There is no the device that real-time monitoring and diagnosis are carried out to pumpingh well working efficiency, pumping units for overwhelming majority oil well at present
The measurement and calculating of efficiency are calculated by manually acquiring data.Since pumping unit work is in field, distance farther out,
It needs field operations personnel's patrol to measure, causes its efficiency test particularly troublesome, real-time is poor；Its data management simultaneously is inconvenient,
The data management platform of none system is saved by the data manually to each mouth well and classification easily leads to loss of data sum number
According to managerial confusion, efficiency is lower.Therefore oil field production cost is caused to increase, management and production efficiency reduce, and exist a large amount of hidden
Suffer from.
Therefore, a kind of dress that can comprehensively monitor pumping well efficiency in real time is needed in current process of oil production
It sets.
Summary of the invention
Intelligent monitoring device based on electrical parameter real-time monitoring oil pumping system efficiency, it is characterised in that including consisting of portion
Point:
Power regulator module, by external switch power supply, 5V voltage regulator circuit, 3.3V voltage regulator circuit and electric source filter circuit group
At other modules into whole device provide stable voltage and sufficient electric current；
Mutual inductor module, by three primary current mutual inductors and three secondary current mutual inductors by mutual inductor primary side
High voltage signal and high current signal convert be transmitted to secondary side as low voltage signal and low current according to a certain percentage
Signal, while by electrical isolation；
Signal conditioning module, it is by high-precision I-V conversion circuit and frequency overlapped-resistable filter circuit that mutual inductor module is secondary
The current signal of side output is for conversion into voltage signal, and is filtered to the high-frequency signal in voltage signal, improves acquisition
To the precision of data；Three-phase multifunctional electric energy metering module passes through three-phase voltameter circuit and pulse Phototube Coupling output circuit
The signal of signal conditioning module output is acquired, handled and calculated, obtains pumping-unit motor in the items electricity of operational process
Parameter, and embedded data processing module is sent by parameter；
Keyboard input module is made of membrane keyboard, the twitter circuit that disappears, keystroke interface, and every system parameter of device is arranged,
To embedded data processing module input data, every display interface of device is switched over, realizes the people of user and device
Machine interaction；External communication module by USB communicating circuit, RS232/RS485 communicating circuit composition, and is counted with external equipment
According to communication, it can be connected in several ways with external equipment and be communicated；The operation information of internal system is output to phase in real time
Even in external equipment, and receive from external specific instruction, it will be in instruction input embedded data processing module；
Ethernet communication module, is made of W5500 network communications circuits and RJ45 communication interface circuit and host computer carries out
Network communication and data transmission, the instruction of host computer are obtained by Ethernet, by data required for host computer after analyzing the instruction
It is sent to host computer with information, or the parameter of internal system is configured according to the instruction of host computer, and inputs embedded
In data processing module；
Real-time clock module is made of backup power source, real time clock circuit, the anti-overcharge circuit of backup power source, mentions to device
For a kind of real-time clock of continuous service, even if making the present apparatus in the event of a power failure, it still can guarantee that system time is stablized
Operation, and can charge automatically to backup power source after device powers on, while under the protection of the anti-overcharge circuit of backup power source,
Guarantee the safety of backup power source and reliable, and power conditions are transmitted to embedded data processing module；
Spurt detection module, the bottom dead centre of detection oil pumping machine crank movement, detects the spurt time of pumping unit, and will acquire
The spurt time be input to embedded data processing module；
Data memory module, all data and system information that acquisition process in pumping unit operational process is obtained according to when
Between be deposited into SD card and internal flash circuit；
Embedded data processing module is made of STM32F4 minimum system circuit, is acquired and is handled from other each moulds
The data of block, and the hardware resource and software resource of system are allocated, it controls and manages, be the nucleus module of the present apparatus；
Touch LCD display module, is embedded on the shell of device, and is connected by soft arranging wire with the main circuit board of device
It connects, real-time display user interface, all data and its data that display is acquired by embedded data processing module, is calculated
Report and data and curves, display system option and system prompt information support contact action and changing interface；
Further, to the power failure of pumping unit and stop the well time and measure, the real-time clock module is having a power failure and not
Continue the time of metering system operation in the case where power failure；
After pumping unit power failure, device will record the time point of power failure, after powering on, before device can read power failure automatically
Time record and current time, and power off time point and power off time are shown, send and store record；
If pumping unit stops well accident, device can be detected by jig frequency detection module stops well accident, and
Can be to stopping the well time and stop the well period and measure according to present system time, and well time point will be stopped and stop the well time
Duan Jinhang is shown, sends and storage records.
It is to oil pumping using the intelligent monitoring device based on electrical parameter real-time monitoring oil pumping system efficiency described in the invention
The method that system carries out intellectual monitoring, which comprises the following steps:
Step 1: the device is mounted in the control cabinet or independent control cabinet of rod-pumped well motor power, passes through three-phase voltage
Shielded cable is mutual by the primary current in mutual inductor module by the three-phase voltage input terminal of the three-phase voltage access device of motor
The three-phase current signal of motor is input to the three-phase current input terminal of device by sensor, will be live by two-phase voltage shielded cable
220V voltage be linked into the power module of device and realize power supply to device, the jig frequency detection module of device is mounted on oil pumping
Machine is mounted on the beams of metal on the inside of oil pumping machine crank, and its signal wire is linked into the jig frequency signal input interface of device；
Step 2: the current signal that mutual inductor module inputs being converted to by voltage module by signal conditioning module, improves letter
Number precision, and treated signal is inputted into three-phase multifunctional electric energy metering module；
Step 3: the signal that three-phase multifunctional electric energy metering module exports signal conditioning module is acquired, handles, counts
It calculates, obtains the parameters in pumping-unit motor operational process, after being adjusted to error, parameter is input to embedded processing
Module；
Step 4: embedded data processing module acquires the data from other each modules, and counts to the data obtained
It calculates, completes the measurement to oil pumping system efficiency；
Calculation method is as follows:
Step 4.1: the power consumption of pumping-unit motor is calculated:
Measuring known electric energy type includes pumping unit active energy, reactive energy, depending in electric energy；Active energy and idle
Electric energy obtains the integral of time by instantaneous active power, instantaneous reactive power, and instantaneous apparent energy；Single-phase active and nothing
The calculation formula of function electric energy are as follows:
Ep=∫ p (t) dt
EPFor pumping-unit motor electric energy；P is the power of pumping-unit motor；T is the time；
Closing mutually active and reactive energy can add up according to being arranged according to the mode of algebraical sum or absolute value, algebra
With the mutually active metering method with reactive energy of conjunction under mode are as follows:
Ept=Epa+Epb+Epc
EPtTo close phase electric energy；EPa、EPb、EPcFor the single-phase electric energy of three-phase electricity；
Absolute value, which adds, closes mutually active and reactive energy metering method under mode are as follows:
Ept=| Epa |+| Epb |+| Epc |
EPtTo close phase electric energy；EPa、EPb、EPcFor the single-phase electric energy of three-phase electricity；
Depending on electric energy metering method also there are two types of, one is using PQS quantitative model, one is use RMS to measure mould
Formula；It depending on the calculation in electric energy is opened again using active energy to be added with the quadratic sum of reactive energy in PQS quantitative model
Side obtains, and calculation formula is as follows:
Wherein STWhat is indicated is view in electric energy, PTThat indicate is active energy, QTWhat is indicated is reactive energy；
It depending on the calculation in electric energy is made using by the product of each phase voltage, current effective value in RMS quantitative model
It is obtained with integral, formula is shown below:
ST=∫ (UraIra+UrbIrb+UrcIrc)dt
Wherein STWhat is indicated is view in electric energy, and U is single-phase voltage, and I is monophase current；
Step 4.2: the active energy of known pumping unit consumption, carrying out calculating to the pump efficiency of oil pumping system, steps are as follows:
The power consumption pair obtained by the intelligent monitoring device measurement of the real-time detection oil pumping system efficiency based on electrical parameter
The Liquid output of oil well is predicted, the practical Liquid output of every jig frequency of system is obtained；
Calculation formula are as follows:
Q represents the Liquid output of pumping unit in above formula, and unit is ton；P represents the active energy of pumping unit consumption, and unit is thousand
Watt-hour；ω represents the ton liquid power consumption coefficient of discharge of pumping unit, and unit is t/kwh, which can be according to the practical production of pumping unit
Liquid measure and power consumption historical data and system effectiveness are calculated；ε represents Liquid output offset error；
Theoretical Liquid output is calculated according to the mechanical parameter of pumping unit and the stroke period collected:
In above formula, DpOil well pump diameter is represented, unit is m；N represents jig frequency, and unit is 1/min；S represents stroke, unit
It is m；
The pump efficiency of pumping unit system is calculated.In the actual production process, pump efficiency is defined as practical Liquid output and theory
The ratio of Liquid output, is formulated are as follows:
In above formula, ηpIndicate pump efficiency；QrIndicate the practical Liquid output of pumping unit, unit is m3；QtIndicate the theory of pumping unit
Liquid output, unit are m3；
Step 4.3: the pump efficiency of known oil pumping system, to the calculating of oil pumping system efficiency, steps are as follows:
The every punching of oil well obtained by the intelligent monitoring device measurement of the real-time detection oil pumping system efficiency based on electrical parameter
Secondary input power, the input power P of pumping-unit motorinIt can be calculated by three-phase multifunctional electric energy metering module；
The power consumption pair obtained by the intelligent monitoring device measurement of the real-time detection oil pumping system efficiency based on electrical parameter
The Liquid output of oil well is predicted, the practical Liquid output Q of every jig frequency of system is obtainedr；
According to hydrodynamic face data in actually detected arrive the jig frequency in scene, well head oil pressure, casing pressure data have been calculated
Imitate lift；
The calculation formula of effective head is as follows:
In above formula, h represents fluid level depth of oil well, and unit is m；POilWell head oil pressure is represented, unit is MPa；PSetRepresent well
Muzzle pressure, unit are MPa；
Further according to the Liquid output of prediction, the effective power of pumping unit done is calculated in effective head；
For pumping unit effective power i.e. by power needed for lifting liquid to ground in well, calculation formula is as follows:
In above formula, Q represents the daily fluid production rate of pumping unit, and unit is m3, the effective head of liquid, unit are in H winding shaft
m；ρ represents oil density；
It is calculated to obtain the system effectiveness of pumping unit according to Mean Input Power and effective power；
System effectiveness can directly reflect the utilization rate of electrical situation of pumping well system；The definition of system effectiveness is oil pumping
The ratio of liquid is done in machine winding shaft effective power and power input to machine value, formula are as follows:
In above formula, ηsRepresent the system effectiveness of rod-pumped well, PwRepresent pumping unit effective power, PinRepresent pumping-unit motor
Input power；
Step 5: other each modules input the data of embedded data processing modules and pass through embedded data processing module
Calculating after data by ethernet communication module transfer to host computer；
Step 6: external communication module and external equipment carry out data communication, mutually repeatedly kick into external equipment in several ways
Row communication；The operation information of internal system is output in real time in connected external equipment, touch LCD display module real-time display
The operation information of internal system.
Further, three-phase multifunctional electric energy metering module is suitable for three-phase three-wire system and three-phase four-wire system application；Measurement
It is each mutually and to close between electric current, voltage, power factor, electric current and the voltage of phase phase angle, frequency between phase angle, voltage；Measure each phase and
The active power of phase all-wave, reactive power, apparent energy, active energy, reactive energy, view are closed in electric energy；Measure each phase and
Close active power, reactive power, the apparent energy, current effective value, voltage effective value of phase fundamental wave；Measure and save each phase voltage
With the ADC sampled value of current channel；Monitor the failures such as decompression, overcurrent, phase shortage, the asymmetrical three-phase of three-phase circuit；By active electricity
Can, reactive energy is exported depending on the pulse signal in electric energy and fundamental energy by pulse Phototube Coupling output circuit；And
Alignment error is being filled in the signal input apparatus of standard three phase power by keyboard input module and touch LCD panel module
Selection carries out automatic error adjustment, and the standard voltage value for successively exporting calibration power instrument, normalized current in the main interface set
Value, calibration power value, every error amount are sequentially input by keyboard input module to realize automatic calibration.
The utility model has the advantages that
(1) full-featured.Fully consider the actual demand of oil field production, it is possible to provide the weight in a variety of pumpingh well production processes
Want data, such as Liquid output, power consumption, pump efficiency, system effectiveness, power failure stop well record, motor items electrical parameter key variables and
Parameter can comprehensively detect every important parameter in pumping unit operational process, while the calculating side of multiple parameters
Formula can voluntarily be selected according to demand with user, and evaluation criteria diversification can effectively assist field engineer to the fortune of oil well
Row state is comprehensively assessed and diagnosed.
(2) long operational time.The present apparatus is powered without battery, directly takes electricity from power grid, can be uninterrupted with whole day 24 hours
Operation, device are not restricted using the time by electricity, and under device power blackout situation, and sub-module is supplied using backup power source inside device
Electricity guarantees device continuous service, and carries out certainly under the protection of the anti-overcharge circuit of backup power source to backup power source after the power-up
Dynamic charging, the runing time of the device greatly improved, and guarantee is provided to its real-time.
(3) real-time is good.The present apparatus can run without interruption with whole day, be continued working, can be to each punching of pumping unit
Secondary data real-time perfoming acquisition, calculates, handles, send, storage, and display and record are realized to pumping unit parameters and fortune
The real-time monitoring and display of row situation have good real-time.
(4) it installs and safeguards and is quick.Compared to traditional pumping unit sensor, the present apparatus is not necessarily to carry out during installation to stop well to unload
It carries, it is only necessary to equipment is installed in distribution phase at the scene and is connect with the input terminal of motor, the installation of equipment can be completed, it is whole
A simple and efficient safety of process.When device needs maintenance upgrade, device can be upgraded by reserved upgrade port, nothing
It needs to dismantle, even if device breaks down, without well unloading is stopped, can directly replace, it is easy to maintain.
(5) high reliablity.It is mounted on pumping unit, is chronically exposed to outside, when long compared to traditional pumping unit sensor
Between it is affected by environment.The present apparatus is mounted in distribution box, is not easy affected by environment, is not susceptible to failure, high reliablity.
(6) intelligence degree is high.All data and information real-time display that device can not only obtain acquisition and processing
On liquid crystal display, it can also be stored according to time automatically generated data report and by SD card, while can also be by this
For a little data by serial ports, the modes such as RS485, USB are sent to other external equipments, or are transferred to host computer storage by Ethernet
Into database and the network platform, and real time inspection can be carried out to these data on mobile phone A pp, intelligence degree is high.
Detailed description of the invention
Fig. 1 is the intellectual monitoring dress based on electrical parameter real-time detection oil pumping system efficiency in the specific embodiment of the invention
The system block diagram set；
Fig. 2 is the specific work steps of the metering pumping unit power in the specific embodiment of the invention.
Fig. 3 is that the offset error in the three-phase multifunctional electric energy metering module in the specific embodiment of the invention is calibrated automatically
Flow chart；
Fig. 4 is that the gain error in the three-phase multifunctional electric energy metering module in the specific embodiment of the invention is calibrated automatically
Flow chart；
Fig. 5 is the liquid crystal display interface composition figure in the specific embodiment of the invention；
Fig. 6 is the interface the remote terminal APP composition figure in the specific embodiment of the invention；
Specific embodiment
It elaborates with reference to the accompanying drawing to specific implementation of the invention.
Based on the intelligent monitoring device and method of electrical parameter real-time monitoring oil pumping system efficiency,
As shown in Figure 1, a kind of intelligent monitoring device master of the real-time detection oil pumping system efficiency based on electrical parameter of the present invention
It to be made of following sections:
Mutual inductor module, major function are the high voltage signal of mutual inductor primary side and high current signal according to one
Fixed transformation of scale is transmitted to the low voltage signal that secondary side becomes and low current signal, facilitates and is detected and measured.Mutual inductance
Device module will also play the effect of electrical isolation, keep apart the circuit of intelligent monitoring device with primary side main circuit, prevent because
Main electric circuit failure damages secondary side circuit, while making the input specification of instrument unified, it is easy to accomplish standardization.
Signal conditioning module, major function are the current signal for exporting mutual inductor module secondary side according to certain ratio
Example is for conversion into voltage signal, and is filtered to the high-frequency signal in voltage signal, eliminates the high-frequency noise in signal, mentions
Height collects the precision of data.
Three-phase multifunctional electric energy metering module is mainly used for being acquired the signal that signal conditioning module exports, handle
And calculating, obtain every electrical energy parameter in operational process of pumping-unit motor.
Jig frequency detection module, major function are to detect the bottom dead centre of oil pumping machine crank movement, and detect and obtain pumping unit
Stroke period.
Keyboard input module, major function are used to be arranged every system parameter of device, and the input data into the present apparatus is right
Every display interface of device switches over, to realize the human-computer interaction of user and device.
Touch LCD display module is mainly used for real-time display user interface, all data that display is acquired, is calculated
And its data sheet and data and curves, display system option and system prompt information, intuitively to user show interior data,
Information and chart, and can support contact action and check, keyboard input module can be cooperated to be used in conjunction with realization simultaneously good
Good human-computer interaction.
External communication module is mainly used for carrying out data communication with other external equipments, can pass through the direct-connected line of USB, serial ports
Line, RS485 connection is connected with external equipment to be communicated.The operation information of internal system can be output to by the module in real time
It is connected in external equipment, and can receive and relevant operation is carried out to internal data from external specific instruction or is obtained corresponding
Internal data and information.
Ethernet communication module, the module are mainly made of network communication chip and RJ45 network communication interface.Main function
It can be used to carry out network communication and data transmission with host computer, which obtains the instruction of host computer by Ethernet, and parsing refers to
Data required for host computer and information are sent to host computer after order, or according to host computer instruction to the ginseng of internal system
Number is configured.
Real-time clock module, major function are to provide a kind of high-precision, low-power consumption, Low Drift Temperature, continuous service to device
Real-time clock still can guarantee system time stable operation even if making the present apparatus in the event of a power failure, and can be
Device automatically charges to backup power source after powering on, while under the protection of the anti-overcharge circuit of backup power source, guaranteeing backup power source
For safety with reliably, device can automatically record the length of power off time point and power off time period after resetting, and be added to system
Have a power failure and notes down in report.
Data memory module, the module major function are all numbers for obtaining acquisition process in pumping unit operational process
It is deposited into SD card circuit according to system information according to the time, and is shown to the data stored in SD card under the operation of user
In main interface.
Power regulator module, it is stable that the major function of the module is that other modules into whole device provide
Voltage and sufficient electric current.
Embedded data processing module, major function are the data of acquisition and processing from other modules, and right
The hardware resource and software resource of system are allocated, and are controlled and are managed.
The intelligent monitoring device based on electrical parameter real-time monitoring oil pumping system efficiency carries out one to oil pumping system
Change the method for intellectual monitoring, which comprises the following steps:
Step 1: the device is mounted in the control cabinet or independent control cabinet of rod-pumped well motor power, passes through three-phase voltage
Shielded cable is mutual by the primary current in mutual inductor module by the three-phase voltage input terminal of the three-phase voltage access device of motor
The three-phase current signal of motor is input to the three-phase current input terminal of device by sensor, will be live by two-phase voltage shielded cable
220V voltage be linked into the power module of device and realize power supply to device, the jig frequency detection module of device is mounted on oil pumping
Machine is mounted on the beams of metal on the inside of oil pumping machine crank, and its signal wire is linked into the jig frequency signal input interface of device；
Step 2: the current signal that mutual inductor module inputs being converted to by voltage module by signal conditioning module, improves letter
Number precision, and treated signal is inputted into three-phase multifunctional electric energy metering module；
Step 3: the signal that three-phase multifunctional electric energy metering module exports signal conditioning module is acquired, handles, counts
It calculates, obtains the parameters in pumping-unit motor operational process, after being adjusted to error, parameter is input to embedded processing
Module；
Step 4: embedded data processing module receive from three-phase multifunctional electric energy metering module, keyboard input module,
External communication module, ethernet communication module, the data of real-time clock module, detection module of making a spurt, and the data obtained is carried out
It calculates, completes the measurement to oil pumping system efficiency；
Calculation method is as follows:
Step 4.1: the power consumption of pumping-unit motor is calculated:
Measuring known electric energy type includes pumping unit active energy, reactive energy, depending in electric energy；Active energy and idle
Electric energy obtains the integral of time by instantaneous active power, instantaneous reactive power, and instantaneous apparent energy；Single-phase active and nothing
The calculation formula of function electric energy are as follows:
Ep=∫ p (t) dt
EPFor pumping-unit motor electric energy；P is the power of pumping-unit motor；T is the time；
Closing mutually active and reactive energy can add up according to being arranged according to the mode of algebraical sum or absolute value, algebra
With the mutually active metering method with reactive energy of conjunction under mode are as follows:
Ept=Epa+Epb+Epc
EPtTo close phase electric energy；EPa、EPb、EPcFor the single-phase electric energy of three-phase electricity；
Absolute value, which adds, closes mutually active and reactive energy metering method under mode are as follows:
Ept=| Epa |+| Epb |+| Epc |
EPtTo close phase electric energy；EPa、EPb、EPcFor the single-phase electric energy of three-phase electricity；
Depending on electric energy metering method also there are two types of, one is using PQS quantitative model, one is use RMS to measure mould
Formula；It depending on the calculation in electric energy is opened again using active energy to be added with the quadratic sum of reactive energy in PQS quantitative model
Side obtains, and calculation formula is as follows:
Wherein STWhat is indicated is view in electric energy, PTThat indicate is active energy, QTWhat is indicated is reactive energy；
It depending on the calculation in electric energy is made using by the product of each phase voltage, current effective value in RMS quantitative model
It is obtained with integral, formula is shown below:
ST=∫ (UraIra+UrbIrb+UrcIrc)dt
Wherein STWhat is indicated is view in electric energy, and U is single-phase voltage, and I is monophase current；
Step 4.2: having obtained the active energy of pumping unit consumption, then the pump efficiency of oil pumping system has been calculated, calculated step
It is rapid as follows:
The power consumption obtained by the intelligent monitoring device measurement based on electrical parameter real-time monitoring oil pumping system efficiency is to oil
The Liquid output of well is predicted, the practical Liquid output of every jig frequency of system is obtained；
Calculation formula are as follows:
Q represents the Liquid output of pumping unit in above formula, and unit is ton；P represents the active energy of pumping unit consumption, and unit is thousand
Watt-hour；ω represents the ton liquid power consumption coefficient of discharge of pumping unit, and unit is t/kwh, which can be according to the practical production of pumping unit
Liquid measure and power consumption historical data and system effectiveness are calculated；ε represents Liquid output offset error；
Theoretical Liquid output is calculated according to the mechanical parameter of pumping unit and the stroke period collected:
In above formula, DpOil well pump diameter is represented, unit is m；N represents jig frequency, and unit is 1/min；S represents stroke, unit
It is m；
The pump efficiency of pumping unit system is calculated.In the actual production process, pump efficiency is defined as practical Liquid output and theory
The ratio of Liquid output, is formulated are as follows:
In above formula, ηpIndicate pump efficiency；QrIndicate the practical Liquid output of pumping unit, unit is m3；QtIndicate the theory of pumping unit
Liquid output, unit are m3；
Step 4.3: it has obtained the pump efficiency of oil pumping system, then oil pumping system efficiency has been calculated, steps are as follows for calculating:
The oil obtained by the integral intelligent monitoring device measurement of the real-time monitoring oil pumping system efficiency based on electrical parameter
The input power of the every jig frequency of well, the input power P of pumping-unit motorinIt can be calculated by three-phase multifunctional electric energy metering module
It arrives；
The consumption obtained by the integral intelligent monitoring device measurement of the real-time monitoring oil pumping system efficiency based on electrical parameter
Electricity predicts the Liquid output of oil well, obtains the practical Liquid output Q of every jig frequency of systemr；
According to hydrodynamic face data in actually detected arrive the jig frequency in scene, well head oil pressure, casing pressure data have been calculated
Imitate lift；
The calculation formula of effective head is as follows:
In above formula, h represents fluid level depth of oil well, and unit is m；POilWell head oil pressure is represented, unit is MPa；PSetRepresent well
Muzzle pressure, unit are MPa；
Further according to the Liquid output of prediction, the effective power of pumping unit done is calculated in effective head；
For pumping unit effective power i.e. by power needed for lifting liquid to ground in well, calculation formula is as follows:
In above formula, Q represents the daily fluid production rate of pumping unit, and unit is m3, the effective head of liquid, unit are in H winding shaft
m；ρ represents oil density；
It is calculated to obtain the system effectiveness of pumping unit according to Mean Input Power and effective power；
System effectiveness can directly reflect the utilization rate of electrical situation of pumping well system；The definition of system effectiveness is oil pumping
The ratio of liquid is done in machine winding shaft effective power and power input to machine value, formula are as follows:
In above formula, ηsRepresent the system effectiveness of rod-pumped well, PwRepresent pumping unit effective power, PinRepresent pumping-unit motor
Input power；
Step 5: other each modules input the data of embedded data processing modules and pass through embedded data processing module
Calculating after data by ethernet communication module transfer to host computer；
Step 6: external communication module and external equipment carry out data communication, mutually repeatedly kick into external equipment in several ways
Row communication；The operation information of internal system is output in real time in connected external equipment, touch LCD display module real-time display
The operation information of internal system.
As shown in Fig. 2, a kind of intelligent monitoring device and side based on electrical parameter real-time monitoring oil pumping system efficiency of the present invention
Method, measurement oil pumping system efficiency include the following steps:
Step 1: calibrating installation can calibrate device automatically before use device.By the letter in calibration power source
It number inputs in the module, is switched over, clicked in the main interface of device by keyboard input module and touch LCD panel module
" system parameter setting " button enters system parameter setting interface in main interface, then clicks the entrance of " electrical parameter metering setting " button
Electrical parameter metering set interface, and " electrical parameter error the is calibrated automatically " button for clicking the interface starts error and calibrates automatically.Root
According to the prompt on screen, the standard voltage value for successively exporting calibration power instrument, standard current value, calibration power value, items are accidentally
Difference is sequentially input by keyboard input module, and clicks the automatic calibration that " determination " button realizes error.Numerical value after calibration
It can be automatically stored into internal data store module, the long-term storage of calibration data, even if device powers off, calibration data value
It will not lose.
It is illustrated in figure 3 the offset error calibration flow chart of three-phase multifunctional electric energy metering module, first first by three-phase mark
Quasi- power source is connected with the three-phase signal input terminal of the present apparatus, later the output of first standard of closure power source, and interface selection is opened
It opens offset error to calibrate automatically, device meeting automatic collection current normalized current voltage and power data, and arriving according to acquisition
Value calculate calibration value automatically, successively realize the calibration to current and voltage data, the calibration to power and power factor, and high-ranking officers
Data storage after standard enters in internal register, and uses the above electrical parameter of automatic collection again of the value after calibration, if number
Smaller according to accurate and error, high-ranking officers' tabular value is stored in save in flash memory and use, if data error is larger, will carry out automatically next time
Automatic calibration, repetitive operation just terminate until data fit precision, ask if calibrating to repeat to certain number and still remain automatically
Topic then calibration can be prompted to fail on liquid crystal display, and prompts user to check whether signal wire connection and input value are correct.
It is illustrated in figure 4 the gain error calibration flow chart of three-phase multifunctional electric energy metering module, first by three-phase standard
Power source is connected with the three-phase signal input terminal of the present apparatus, first carries out automatic deviation error calibration, first opens calibration power later
The output valve in calibration power source is arranged on interface for the output in source, and opens gain error on interface and calibrate automatically, and device can be from
The data of the current normalized current of dynamic acquisition, voltage, power and power factor, and according to acquisition to value calculate calibration automatically
Value, successively realize the calibration to current and voltage data, the calibration to power and power factor, and by the data after calibration store into
Enter in internal register, and using calibration after value again the above electrical parameter of automatic collection and and calibration power source output valve into
Row comparison, if data are accurate and error is smaller, high-ranking officers' tabular value is stored in save in flash memory and use, will if data error is larger
Automatic calibration, repetitive operation just terminate until data fit precision next time for automatic progress, if automatic calibration repeats to centainly
Number still remains problem, then calibration can be prompted to fail on liquid crystal display, and user is prompted to check signal wire connection and input
Whether correct it is worth.
Step 2: mounting device and line install the intellectual monitoring dress based on electrical parameter real-time monitoring oil pumping system efficiency
It sets, and carries out wiring with pumping-unit motor route and connect, the present apparatus need to install two parts when actual field is installed altogether: intelligence prison
Survey device and jig frequency detection module.
Device is mounted in the control cabinet or independent control cabinet of rod-pumped well motor power.
(1) attachment device power supply line.The 220V alternating current of industry spot is linked into device by two core shielded cables
The alternating current input interface of power module, and turn off the power switch during installation.
(2) pressure-wire is connected.The three-phase voltage of motor is sequentially ingressed into the three-phase of device by three-phase voltage shielded cable
Voltage input end.
(3) primary current mutual inductor is installed.Primary current mutual inductor is socketed on the three-phase power line of motor, it will be electric
The three-phase current signal of machine is sequentially inputted to the three-phase current input terminal of device.The pressure-wire order of connection needs and current line wiring
It is sequentially identical.For example, three line of pressure-wire is successively connected with the A/B/C tri- with motor, and it is sequentially ingressed into device main circuit board
Voltage input end a/b/c connecting terminal, then current transformer should also be as successively being socketed in the A/B/C phase of motor, and according to
The secondary a/b/c connecting terminal that output signal is linked into circuit board current input terminal guarantees sequence consensus.
The jig frequency detection module of the present apparatus is mounted on the beams of metal on the inside of oil pumping machine crank, adjustment jig frequency detection module
Magnetic stand changes direction and angle close to switch, and adjusts close to the relative position of switch and oil pumping machine crank to guarantee song
Handle is in close in the detection range of switch.
Step 3: system parameter setting.After being installed, after device for opening power supply, first system parameter is configured.The
Once upper electric system can enter system parameter setting interface or switch into system parameter setting circle by using input keyboard
Face.It system parameter setting interface can be to apparatus system time, pumping unit parameter, program operation option, login password, electrical parameter
The important systems parameters such as metering setting are configured.
The pumping unit parameter, comprising: the ton liquid power consumption coefficient of discharge of pumping unit, Liquid output offset error, oil well pump diameter,
Stroke, oil density, fluid level depth of oil well, well head oil pressure, surface casing pressure etc..Such as:
| Pumping unit parameter | Numerical value |
| Ton liquid power consumption coefficient of discharge | 0.424t/kw·h |
| Liquid output offset error | 0.018t |
| Oil well pump diameter | 44mm |
| Stroke | 3m |
| Oil density | 0.8602kg/m3 |
| Fluid level depth of oil well | 1102m |
| Well head oil pressure | 0.723MPa |
| Surface casing pressure | 0.988MPa |
Step 4: acquisition stroke period.After setting up system parameter, device can be acquired automatically data.Device first
The stroke period of pumping unit can be acquired, device can be opened interior after the detection range that crank reaches the jig frequency detection module of device
Portion's timing program measures stroke period, after the detection range for the jig frequency detection module that second of crank reaches device, stops meter
When, and stroke period is calculated.Such as, the time for surveying certain pumping unit jig frequency is 12.453s, and jig frequency is 4.82 times/min.
Step 5: metering oil pumping electromechanical parameters.The metering of electrical parameter includes three parts operation: electrical signal detection, signal tune altogether
Reason, electrical parameter calculate.
(1) electrical signal detection, device obtains the three-phase voltage of pumping-unit motor using mutual inductor module and three-phase current is believed
Number, the mutual inductor module of the present apparatus includes three voltage transformers, three primary current mutual inductors and three secondary current mutual inductances
Device.Wherein voltage transformer and secondary current mutual inductor are installed on main circuit board, and primary current mutual inductor is installed on pumping unit
In the power supply circuit of motor, while its output is connected with the input terminal of the mutual device of secondary current.The no-load voltage ratio coefficient of voltage transformer
To be fixed proportion no-load voltage ratio coefficient with the no-load voltage ratio coefficient of secondary current mutual inductor, the no-load voltage ratio coefficient of primary circuit mutual inductor can root
It is specifically selected according to the model of pumping-unit motor.Mutual inductor module is by the electric signal transmission after no-load voltage ratio to signal conditioning module
In.
(2) signal condition, device carry out signal condition using signal conditioning module, which is mainly turned by high-precision I-V
Circuit and frequency overlapped-resistable filter circuit composition are changed, high-precision I-V conversion circuit is for pressing the low current signal that mutual inductor exports
It is converted into voltage signal according to a certain percentage according to the demand of three-phase multifunctional electric energy metering module, then passes through Anti-aliasing Filter Circuits
By being filtered out to the noise and interference component of sampling composition interference in signal, while the aliasing frequency component in signal being dropped to most
It is low, effectively improve the effective component and sampling precision of signal.
(3) electrical parameter calculates.Device calculates the electrical parameter after conditioning using three-phase multifunctional electric energy metering module.
It is mainly made of three-phase voltameter circuit and pulse Phototube Coupling output circuit, is suitable for phase three-wire three and three-phase and four-line application.
The module can quickly and accurately measure each phase and close active power, reactive power, the apparent energy, active energy, nothing of phase
Function amount, apparent energy, at the same be also capable of measuring each phase and close phase angle between the electric current of phase, voltage, power factor, electric current and voltage,
The items such as phase angle, frequency electrical parameter between voltage, while can also be to the event of the three-phase circuits such as decompression, overcurrent, phase shortage, asymmetrical three-phase
Barrier carries out real-time monitoring.
Step 7: calculating pump efficiency.Pump efficiency is the direct embodiment of rod-pumped well equipment efficiency of usage and management level, by looking into
See that the pump efficiency of system, the oil well that the site operation personnel of oil well can be not high to pump efficiency use rational approach to improve pump efficiency, allow
Oil well pump works in the case where optimum condition, to reach the requirement of optimization production.In the actual production process, practical to produce liquid
Amount is general all will not be higher than theoretical Liquid output, and the ratio of the two is defined as pump efficiency, is formulated are as follows:
In above formula, ηpIndicate pump efficiency；QrIndicate the practical Liquid output of pumping unit, unit is m3；QtIndicate the theory of pumping unit
Liquid output, unit are m3, theoretical pump efficiency can mechanical parameter can be used to be calculated, and formula is as follows:
In above formula, DpOil well pump diameter is represented, unit is m；N represents jig frequency, and unit is 1/min；S represents stroke, unit
It is m.
Intelligent apparatus processing obtain after the power consumption of pumping unit can formula the practical Liquid output of pumping unit is calculated.
Calculation formula are as follows:
Q in above formularThe Liquid output of pumping unit is represented, unit is ton；P represents the active energy of pumping unit consumption, and unit is
Kilowatt hour；ω represents the ton liquid power consumption coefficient of discharge of pumping unit, and unit is t/kwh, which can be according to the reality of pumping unit
Liquid output and power consumption historical data and system effectiveness are calculated；ε represents Liquid output offset error, and unit is t.
For example, certain oil well pump diameter DpFor 0.44m；Jig frequency n is 4.81 times/min；Stroke S is 3, and unit is m, pumping unit
The active energy P of consumption is 0.05Kwh, and Liquid output offset error ε is 0.018t, and ton liquid power consumption coefficient of discharge ω is 0.424t/
Kwh, it is 46.3% that its pump efficiency, which is calculated,.
Step 6: computing system efficiency.
System effectiveness can directly reflect the capacity usage ratio situation of pumping well system.The definition of system effectiveness is oil pumping
The ratio of liquid is done in machine winding shaft effective power and power input to machine value, formula are as follows:
In above formula, ηsRepresent the system effectiveness of rod-pumped well, PwRepresent pumping unit effective power, PinRepresent pumping-unit motor
Input power.Pumping unit effective power is by power needed for lifting liquid to ground in well, and calculation formula is as follows:
In above formula, Q represents the daily fluid production rate of pumping unit, and unit is m3, the effective head of liquid, unit are in H winding shaft
m；ρ represents oil density, and unit is t/m3。
The calculation formula of effective head is as follows:
In above formula, h represents fluid level depth of oil well, and unit is m；POilWell head oil pressure is represented, unit is MPa；PSetRepresent well
Muzzle pressure, unit are MPa.
The input power P of pumping-unit motorinIt is calculated via three-phase multifunctional electric energy metering module, simultaneous is with top
The system effectiveness of the available pumping well system of journey.
This example, oil density ρ are 0.8602t/m3, fluid level depth of oil well h is 1102m；Well head oil pressure POilIt is
0.723MPa；Surface casing pressure PSetIt is 0.988MPa, it is 18.7% that system effectiveness, which is calculated,.
Step 8: displaying data
For device after the calculating for completing all data, device can carry out real-time display, transimission and storage to data.
The display of data: data are shown to be realized by the touch LCD display module of device.The as shown in Figure 5 module can be with
There are main interface, system parameter setting interface, user's login interface and data report interface in the interface of display.
(1) date and time that main interface can be current with real-time display and more new system, day power consumption, monthly consumption, day
Liquid output, the moon Liquid output, can show data and curves window, data options column, system information column.
(2) data options column is mainly by " electric current " the Show Button, " voltage " the Show Button, " power " the Show Button, " power
Factor " the Show Button, " longitudinal axis scaling " the Show Button composition, is selected by touch screen or using film key and presses corresponding function
The button of energy, can show change curve of the corresponding data in a jig frequency.
(3) system information column mainly shows current system information, running state of programs, stroke period, data point number, pump
Effect, system effectiveness, the information such as SD card insert state.
(4) system parameter setting interface can be to the apparatus system time, pumping unit mechanical parameter, and program runs option, steps on
Password is recorded, the important systems parameter such as electrical parameter metering setting is configured.
(5) data sheet interface can show the maximum value of every electrical parameter under a newest jig frequency, minimum value,
Value shows that the power failure of pumping unit stops well record.Corresponding option button is pressed in each user interface by touch screen, it can be with
Realize the mutual switching between graphical interfaces.
Step 9: carrying out data storage.
The data memory module of the present apparatus is mainly constituted by extending out flash memory circuit, SD card interface circuit and SD card.The module
Function be that non-volatile data storage is carried out to the data and device information of device.Wherein extend out the main storage journey of flash memory circuit
The systems weights such as sequence significant variable, test data, user label, user information, pumping unit mechanical parameter, the newest runing time of system
The internal information wanted.SD card interface circuit for plugging SD card and be written and read to SD card data, be device and SD card it
Between data and mechanical interface.SD card is mainly used for storing device acquisition, the data being calculated and information, main to wrap
Include all three phase electrical parameters in each jig frequency, stroke period, power consumption record, Liquid output record, the data such as failure logging
And information.
Step 10: carrying out data transmission.
The present apparatus carries out communication using external communication module and external equipment and data are transmitted, and uses ethernet communication mould
Block, host computer and remote terminal APP realize remote network data transmission and data sharing.
External communication module is mainly by USB communicating circuit, RS232/RS485 communicating circuit composition.It include two-way in device
RS232, all the way RS485, all the way USB are communicated, and the above communication apparatus can be supported to send internal system data to external equipment simultaneously
And system information, and receive the instruction from external equipment and realize internal data operation and information management.
Ethernet communication module is mainly made of W5500 network communications circuits and RJ45 communication interface circuit.The module is logical
Cable and trunking are crossed by data and system information transmissions to host computer, host computer to all data received at
Reason.The module receives the instruction of host computer transmission simultaneously, carries out respective handling and operation to data.The module has used Hardware
Logic gates realize TCP/IP network protocol, network attack and virus be it is not assailable, ensured situ industrial net
The safety of network and data transmission.The module supports 10M and 100M network communication rate simultaneously, has ensured industrial field data biography
Defeated rate.
Mainly by industrial personal computer, network data platform is constituted host computer.The major function of industrial personal computer is to slave computer device
Instruction is sent, and receives data and information from each slave computer, storage enters in database, while to all data
It is managed and shows with information.Industrial personal computer also transmits data on network data platform, is used for data network transmission sum number
According to shared, user in online logon data platform and can be checked daily data.
Remote mobile terminal APP is installed on the mobile phone of user, and APP reads data and letter from network data platform in real time
It ceases and is shown on interface.It is the composition block diagram at liquid crystal display interface as shown in Figure 6, remote terminal APP mainly has 5 functions circle
Face is respectively:
(1) the registering and logging interface of user, operator can complete user by essential informations such as address name, work numbers
Registering and logging.In login interface, name, account (work number or cell-phone number), password are required item, when there is any one wrong
The user that mistakes will be unable to log in.Meanwhile login interface provides client and saves password and Auto Login feature, facilitates same set
Quick registration of standby, the same user under normal use environment uses.
(2) server ip set interface, system provide default server address, when server address changes, user
Address can be configured by way of manual setting, the format of setting is the form of " ip (or domain name): port numbers ".System
The address value of the automatic cache user setting of meeting, calls connection when logging in next time automatically.The interface provides default address simultaneously
Restore function, facilitates quick setting of the operator in the case where server is worked normally to server ip.
(3) pound sign selection and administration interface, the interface can realize the keyword search to pound sign, facilitate operator quick
It searches.List refresh function is provided simultaneously, improves the real-time of data seen in operator.In addition the interface provides new informations
Entrance facilitates quick positioning of the operator to failure oil well.
(4) pumpingh well data query and data display interface, the interface are realized to electric current, voltage and power data and wave
The display of shape, respectively display interface can be switched over three parameters by the inquiry button of interface lower part.It can also show simultaneously
The power consumption of system, Liquid output, pump efficiency, the parameters such as system effectiveness.
(5) historical record query interface, by select andding set to the interface, which can be to the data on corresponding date
Carry out query display.
Claims (4)
1. the intelligent monitoring device based on electrical parameter real-time monitoring oil pumping system efficiency, it is characterised in that including consisting of portion
Point:
Power regulator module is made of external switch power supply, 5V voltage regulator circuit, 3.3V voltage regulator circuit and electric source filter circuit, to
Other modules in whole device provide stable voltage and sufficient electric current；
Mutual inductor module, by three primary current mutual inductors and three secondary current mutual inductors by the height of mutual inductor primary side
Voltage signal and high current signal convert according to a certain percentage is transmitted to secondary side as low voltage signal and low current signal,
Simultaneously by electrical isolation；
Signal conditioning module, it is by high-precision I-V conversion circuit and frequency overlapped-resistable filter circuit that mutual inductor module secondary side is defeated
Current signal out is for conversion into voltage signal, and is filtered to the high-frequency signal in voltage signal, and raising collects number
According to precision；
Three-phase multifunctional electric energy metering module, by three-phase voltameter circuit and pulse Phototube Coupling output circuit to signal condition
The signal of module output is acquired, handles and calculates, and obtains pumping-unit motor in every electrical parameter of operational process, and will ginseng
Number is sent to embedded data processing module；
Keyboard input module is made of membrane keyboard, the twitter circuit that disappears, keystroke interface, and every system parameter of device, Xiang Qian is arranged
Enter formula data processing module input data, every display interface of device is switched over, realizes the man-machine friendship of user and device
Mutually；
External communication module by USB communicating circuit, RS232/RS485 communicating circuit composition, and carries out data with external equipment and leads to
News, can be connected in several ways with external equipment and be communicated；The operation information of internal system is output in real time outside being connected
In portion's equipment, and receive from external specific instruction, it will be in instruction input embedded data processing module；
Ethernet communication module, is made of W5500 network communications circuits and RJ45 communication interface circuit and host computer carries out network
Communication and data transmission, the instruction of host computer are obtained by Ethernet, by data required for host computer and letter after analyzing the instruction
Breath is sent to host computer, or is configured according to the instruction of host computer to the parameter of internal system, and input embedded data
In processing module；
Real-time clock module is made of backup power source, real time clock circuit, the anti-overcharge circuit of backup power source, provides one to device
The real-time clock of kind continuous service still can guarantee system time stable operation even if making the present apparatus in the event of a power failure,
And it can charge to backup power source after device powers on, while under the protection of the anti-overcharge circuit of backup power source, guarantee automatically
The safety of backup power source and reliable, and power conditions are transmitted to embedded data processing module；
Jig frequency detection module, the bottom dead centre of detection oil pumping machine crank movement, detects the stroke period of pumping unit, and what be will acquire rushes
The secondary time is input to embedded data processing module；
Data memory module deposits all data and system information that acquisition process in pumping unit operational process obtains according to the time
Enter into SD card and internal flash circuit；
Embedded data processing module is made of STM32F4 minimum system circuit, is acquired and is handled from other modules
Data, and the hardware resource and software resource of system are allocated, it controls and manages, be the nucleus module of the present apparatus；
Touch LCD display module, is embedded on the shell of device, and is connected by soft arranging wire with the main circuit board of device, real
When show user interface, display is by the acquisition of embedded data processing module, all data being calculated and its data sheet
And data and curves, display system option and system prompt information, support contact action and changing interface.
2. the intelligent monitoring device according to claim 1 based on electrical parameter real-time monitoring oil pumping system efficiency, feature exist
In: power failure to pumping unit and stop the well time and measure, the real-time clock module is held in the case where having a power failure and not having a power failure
The time of continuous metering system operation；
Pumping unit power failure after, device will record the time point of power failure, after powering on, device can read automatically have a power failure before when
Between record and current time, and power off time point and power off time are shown, send and store record；
If pumping unit stops well accident, device can be detected by jig frequency detection module stops well accident, and according to
Present system time can to stopping the well time and stop the well period and measure, and well time point will be stopped and stop the well period into
Row display, sends and storage records.
3. being to oil pumping using the intelligent monitoring device described in claim 1 based on electrical parameter real-time monitoring oil pumping system efficiency
The method that system carries out integral intelligent monitoring, which comprises the following steps:
Step 1: the device is mounted in the control cabinet or independent control cabinet of rod-pumped well motor power, is shielded by three-phase voltage
The three-phase voltage input terminal of the three-phase voltage access device of motor is passed through the primary current mutual inductor in mutual inductor module by cable
The three-phase current signal of motor is input to the three-phase current input terminal of device, by two-phase voltage shielded cable by scene
220V voltage is linked into the power supply realized in the power module of device to device, and the jig frequency detection module of device is mounted on pumping unit
It is mounted on the beams of metal on the inside of oil pumping machine crank, and its signal wire is linked into the jig frequency signal input interface of device；
Step 2: the current signal that mutual inductor module inputs being converted to by voltage module by signal conditioning module, improves signal
Precision, and signal inputs three-phase multifunctional electric energy metering module by treated；
Step 3: the signal that three-phase multifunctional electric energy metering module exports signal conditioning module is acquired, handles, calculates, and obtains
To the parameters in pumping-unit motor operational process, after being adjusted to error, parameter is input to embedded processing module；
Step 4: embedded data processing module, which receives, comes from three-phase multifunctional electric energy metering module, keyboard input module, outside
Communication module, ethernet communication module, the data of real-time clock module, detection module of making a spurt, and the data obtained is calculated,
Complete the measurement to oil pumping system efficiency；
Calculation method is as follows:
Step 4.1: the power consumption of pumping-unit motor is calculated:
Measuring known electric energy type includes pumping unit active energy, reactive energy, depending in electric energy；Active energy and reactive energy
By instantaneous active power, instantaneous reactive power, and instantaneous apparent energy obtain the integral of time；Single-phase active and idle electricity
The calculation formula of energy are as follows:
Ep=∫ p (t) dt
EPFor pumping-unit motor electric energy；P is the power of pumping-unit motor；T is the time；
Closing mutually active and reactive energy can add up according to being arranged according to the mode of algebraical sum or absolute value, algebraical sum mould
Mutually active and reactive energy metering method is closed under formula are as follows:
Ept=Epa+Epb+Epc
EPtTo close phase electric energy；EPa、EPb、EPcFor the single-phase electric energy of three-phase electricity；
Absolute value, which adds, closes mutually active and reactive energy metering method under mode are as follows:
Ept=| Epa |+| Epb |+| Epc |
EPtTo close phase electric energy；EPa、EPb、EPcFor the single-phase electric energy of three-phase electricity；
Depending on electric energy metering method also there are two types of, one is PQS quantitative model is used, one is use RMS quantitative model；?
PQS quantitative model depending on the calculation in electric energy is obtained using active energy is added evolution again with the quadratic sum of reactive energy
It arrives, calculation formula is as follows:
Wherein STWhat is indicated is view in electric energy, PTThat indicate is active energy, QTWhat is indicated is reactive energy；
It depending on the calculation in electric energy is made and accumulates using by the product of each phase voltage, current effective value in RMS quantitative model
Get, formula is shown below:
ST=∫ (UraIra+UrbIrb+UrcIrc)dt
Wherein STWhat is indicated is view in electric energy, and U is single-phase voltage, and I is monophase current；
Step 4.2: having obtained the active energy of pumping unit consumption, then the pump efficiency of oil pumping system has been calculated, calculated step such as
Under:
The power consumption obtained by the integral intelligent monitoring device measurement of the real-time monitoring oil pumping system efficiency based on electrical parameter
The Liquid output of oil well is predicted, the practical Liquid output of every jig frequency of system is obtained；
Calculation formula are as follows:
Q represents the Liquid output of pumping unit in above formula, and unit is ton；P represents the active energy of pumping unit consumption, and unit is kilowatt
When；ω represents the ton liquid power consumption coefficient of discharge of pumping unit, and unit is t/kwh, which can be according to the practical production liquid of pumping unit
Amount and power consumption historical data and system effectiveness are calculated；ε represents Liquid output offset error；
Theoretical Liquid output is calculated according to the mechanical parameter of pumping unit and the stroke period collected:
In above formula, DpOil well pump diameter is represented, unit is m；N represents jig frequency, and unit is 1/min；S represents stroke, and unit is m；
The pump efficiency of pumping unit system is calculated, in the actual production process, pump efficiency is defined as practical Liquid output and theoretical production liquid
The ratio of amount, is formulated are as follows:
In above formula, ηpIndicate pump efficiency；QrIndicate the practical Liquid output of pumping unit, unit is m3；QtIndicate that the theoretical of pumping unit produces liquid
Amount, unit is m3；
Step 4.3: it has obtained the pump efficiency of oil pumping system, then oil pumping system efficiency has been calculated, steps are as follows for calculating:
The oil well obtained by the integral intelligent monitoring device measurement of the real-time monitoring oil pumping system efficiency based on electrical parameter is every
The input power of jig frequency, the input power P of pumping-unit motorinIt can be calculated by three-phase multifunctional electric energy metering module；
The power consumption obtained by the integral intelligent monitoring device measurement of the real-time monitoring oil pumping system efficiency based on electrical parameter
The Liquid output of oil well is predicted, the practical Liquid output Q of every jig frequency of system is obtainedr；
According to hydrodynamic face data in actually detected arrive the jig frequency in scene, well head oil pressure, casing pressure data are calculated and effectively raise
Journey；
The calculation formula of effective head is as follows:
In above formula, h represents fluid level depth of oil well, and unit is m；POilWell head oil pressure is represented, unit is MPa；PSetRepresent well head set
Pressure, unit is MPa；
Further according to the Liquid output of prediction, the effective power of pumping unit done is calculated in effective head；
For pumping unit effective power i.e. by power needed for lifting liquid to ground in well, calculation formula is as follows:
In above formula, Q represents the daily fluid production rate of pumping unit, and unit is m3, the effective head of liquid in H winding shaft, unit is m；ρ generation
Table oil density；
It is calculated to obtain the system effectiveness of pumping unit according to Mean Input Power and effective power；
System effectiveness can directly reflect the utilization rate of electrical situation of pumping well system；The definition of system effectiveness mentions for pumping unit
The ratio of liquid is done in gug effective power and power input to machine value, formula are as follows:
In above formula, ηsRepresent the system effectiveness of rod-pumped well, PwRepresent pumping unit effective power, PinRepresent the defeated of pumping-unit motor
Enter power；
Step 5: the data of other each module input embedded data processing modules and the meter Jing Guo embedded data processing module
Data after calculation pass through ethernet communication module transfer to host computer；
Step 6: external communication module and external equipment carry out data communication, are connected with external equipment are led in several ways
News；The operation information of internal system is output in real time in connected external equipment, touch LCD display module real-time display system
Internal operation information.
4. according to claim 3 use the intelligent monitoring device based on electrical parameter real-time monitoring oil pumping system efficiency to pumping
The method of oil system progress integral intelligent monitoring, which is characterized in that three-phase multifunctional electric energy metering module is suitable for three-phase three
Line system and three-phase four-wire system application；It measures each phase and closes phase angle, voltage between the electric current of phase, voltage, power factor, electric current and voltage
Between phase angle, frequency；It measures each phase and closes active power, reactive power, the apparent energy, active energy, idle electricity of phase all-wave
It can, regard in electric energy；It measures each phase and closes active power, reactive power, the apparent energy, current effective value, voltage of phase fundamental wave
Virtual value；Measure and save the ADC sampled value of each phase voltage and current channel；Monitor the decompression of three-phase circuit, overcurrent, phase shortage,
The failures such as asymmetrical three-phase；By active energy, reactive energy, depending on passing through pulsed light in the pulse signal of electric energy and fundamental energy
Output circuit is electrically isolated to be exported；And alignment error is inputted in the signal input apparatus of standard three phase power by keyboard
Module and touch LCD panel module select to carry out automatic error adjustment in the main interface of device, and successively that calibration power instrument is defeated
Standard voltage value out, standard current value, calibration power value, every error amount are sequentially input by keyboard input module to realize
Automatic calibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811036093.8A CN109085438A (en) | 2018-09-06 | 2018-09-06 | Intelligent monitoring device and method based on electrical parameter real-time monitoring oil pumping system efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811036093.8A CN109085438A (en) | 2018-09-06 | 2018-09-06 | Intelligent monitoring device and method based on electrical parameter real-time monitoring oil pumping system efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109085438A true CN109085438A (en) | 2018-12-25 |
Family
ID=64840769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811036093.8A Pending CN109085438A (en) | 2018-09-06 | 2018-09-06 | Intelligent monitoring device and method based on electrical parameter real-time monitoring oil pumping system efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109085438A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333070A (en) * | 2019-06-25 | 2019-10-15 | 吉林石油集团有限责任公司通信公司 | A kind of transmission obstacle identification method based on oil pumping electromechanical parameters |
| CN110351689A (en) * | 2019-05-29 | 2019-10-18 | 华耀时代(天津)科技有限公司 | A kind of WIFI transparent transmission system for pumping unit RTU parameter configuration |
| CN110492828A (en) * | 2019-06-24 | 2019-11-22 | 无锡旭菱电子科技有限公司 | A kind of pump load compensation device and method based on cloud platform |
| CN111766931A (en) * | 2020-06-28 | 2020-10-13 | 沈阳金凯瑞科技有限公司 | Efficiency tester for oil pumping well system |
| CN112946470A (en) * | 2021-02-04 | 2021-06-11 | 东北大学 | Soft measurement method and system for steam throughput cycle conversion time of sucker rod pumping well |
| CN113266318A (en) * | 2021-05-28 | 2021-08-17 | 陕西埃菲克能源科技有限公司 | Self-learning-based stroke frequency adjusting method for rod-type pumping unit well |
| CN113325218A (en) * | 2021-05-26 | 2021-08-31 | 大庆高新区中环电力控制***有限公司 | Oil field electrical parameter acquisition equipment and system and method for measuring efficiency of mechanical production well system |
| CN114776268A (en) * | 2022-06-22 | 2022-07-22 | 陕西埃菲克能源科技有限公司 | Green low-carbon intelligent group control method and system for oil extraction system |
| CN114876695A (en) * | 2022-04-02 | 2022-08-09 | 华能澜沧江水电股份有限公司 | Method for remotely judging performance reduction of oil pump motor of speed regulator oil pressure device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245243A (en) * | 1999-07-15 | 2000-02-23 | 江苏石油勘探局石油工程技术研究院 | Parameters design method for mechanically oil-producing technology with rod pump. |
| CN2648066Y (en) * | 2003-09-10 | 2004-10-13 | 郝正钧 | Data collecting, energy saving controlling apparatus for sucking oil machine |
| CN202014222U (en) * | 2011-04-02 | 2011-10-19 | 安徽钟南电器有限责任公司 | Energy-saving frequency conversion compensation control cabinet |
| CN202512165U (en) * | 2012-03-03 | 2012-10-31 | 中国石油化工股份有限公司 | Portable frequency oil pumping machine power balance testing device |
| CN103061749A (en) * | 2013-01-25 | 2013-04-24 | 东北大学 | Soft measuring method of dynamic liquid level under sucker rod oil well |
| CN103498647A (en) * | 2013-09-11 | 2014-01-08 | 中国石油天然气股份有限公司 | Parameter adjusting method and system for improving system efficiency of rod-pumped well |
| CN107358012A (en) * | 2017-09-13 | 2017-11-17 | 北京安控科技股份有限公司 | A kind of efficiency rating of pumping unit system and optimal control method |
| CN107725031A (en) * | 2017-10-10 | 2018-02-23 | 东北大学 | A kind of indicator card harvester and method based on electrical power and counterweight |
-
2018
- 2018-09-06 CN CN201811036093.8A patent/CN109085438A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245243A (en) * | 1999-07-15 | 2000-02-23 | 江苏石油勘探局石油工程技术研究院 | Parameters design method for mechanically oil-producing technology with rod pump. |
| CN2648066Y (en) * | 2003-09-10 | 2004-10-13 | 郝正钧 | Data collecting, energy saving controlling apparatus for sucking oil machine |
| CN202014222U (en) * | 2011-04-02 | 2011-10-19 | 安徽钟南电器有限责任公司 | Energy-saving frequency conversion compensation control cabinet |
| CN202512165U (en) * | 2012-03-03 | 2012-10-31 | 中国石油化工股份有限公司 | Portable frequency oil pumping machine power balance testing device |
| CN103061749A (en) * | 2013-01-25 | 2013-04-24 | 东北大学 | Soft measuring method of dynamic liquid level under sucker rod oil well |
| CN103498647A (en) * | 2013-09-11 | 2014-01-08 | 中国石油天然气股份有限公司 | Parameter adjusting method and system for improving system efficiency of rod-pumped well |
| CN107358012A (en) * | 2017-09-13 | 2017-11-17 | 北京安控科技股份有限公司 | A kind of efficiency rating of pumping unit system and optimal control method |
| CN107725031A (en) * | 2017-10-10 | 2018-02-23 | 东北大学 | A kind of indicator card harvester and method based on electrical power and counterweight |
Non-Patent Citations (3)
| Title |
|---|
| 姬志国: "智能电力监测***的设计与实现", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
| 王源: "基于Powerlink的抽油机数据采集与工况分析***设计与实现", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 王贵生: "抽油机井远程监控与能效评价***的设计与实现", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110351689A (en) * | 2019-05-29 | 2019-10-18 | 华耀时代(天津)科技有限公司 | A kind of WIFI transparent transmission system for pumping unit RTU parameter configuration |
| CN110492828A (en) * | 2019-06-24 | 2019-11-22 | 无锡旭菱电子科技有限公司 | A kind of pump load compensation device and method based on cloud platform |
| CN110333070A (en) * | 2019-06-25 | 2019-10-15 | 吉林石油集团有限责任公司通信公司 | A kind of transmission obstacle identification method based on oil pumping electromechanical parameters |
| CN111766931A (en) * | 2020-06-28 | 2020-10-13 | 沈阳金凯瑞科技有限公司 | Efficiency tester for oil pumping well system |
| CN112946470A (en) * | 2021-02-04 | 2021-06-11 | 东北大学 | Soft measurement method and system for steam throughput cycle conversion time of sucker rod pumping well |
| CN112946470B (en) * | 2021-02-04 | 2022-06-17 | 东北大学 | Soft measurement method and system for steam throughput cycle time of sucker-rod pumping well |
| CN113325218A (en) * | 2021-05-26 | 2021-08-31 | 大庆高新区中环电力控制***有限公司 | Oil field electrical parameter acquisition equipment and system and method for measuring efficiency of mechanical production well system |
| CN113266318A (en) * | 2021-05-28 | 2021-08-17 | 陕西埃菲克能源科技有限公司 | Self-learning-based stroke frequency adjusting method for rod-type pumping unit well |
| CN114876695A (en) * | 2022-04-02 | 2022-08-09 | 华能澜沧江水电股份有限公司 | Method for remotely judging performance reduction of oil pump motor of speed regulator oil pressure device |
| CN114776268A (en) * | 2022-06-22 | 2022-07-22 | 陕西埃菲克能源科技有限公司 | Green low-carbon intelligent group control method and system for oil extraction system |
| CN114776268B (en) * | 2022-06-22 | 2022-09-09 | 陕西埃菲克能源科技有限公司 | Green low-carbon intelligent group control method and system for oil extraction system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109085438A (en) | Intelligent monitoring device and method based on electrical parameter real-time monitoring oil pumping system efficiency | |
| AU2019218021B2 (en) | Non-intrusive load identification-based submetering smart electricity meter | |
| CN102332753B (en) | Intelligentized switch cabinet integrative monitoring system | |
| CN103199621B (en) | The networking of power transformer of intelligent substation on-line monitoring | |
| CN103038971B (en) | Method for controlling PV installations in an electrical grid | |
| CN201417503Y (en) | Embedded remote automatic meter-reading system based on GPRS | |
| CN103092169B (en) | Digital camp apparatus management/control device | |
| CN201611444U (en) | Automated comprehensive management platform system | |
| CN104242447A (en) | Integrated measuring and controlling device and system of intelligent transformer substation | |
| CN202351347U (en) | Monitoring terminal device for distribution transformer | |
| CN103135019A (en) | Power quality monitoring management system based on electric power wide-area network | |
| CN203241817U (en) | On-line intelligent analysis and control system for operation parameters of oil pumping machine | |
| CN106053981A (en) | Electric energy quality acquisition terminal and related method | |
| CN104076789A (en) | Mine main drainage automatic control and remote monitoring system | |
| CN103617357A (en) | Public transformer district low-voltage line loss analysis system and using method thereof | |
| CN106300652A (en) | A kind of user side energy-saving electric management system | |
| CN103323686B (en) | A kind of intelligent grid power quality analyzer | |
| CN103176066A (en) | Digitization power quality monitoring device | |
| CN2907042Y (en) | Low voltage power distribution network data monitoring and management system | |
| CN204389614U (en) | A kind of portable multi-function energy efficiency monitor | |
| CN201796082U (en) | Intelligent device for measuring current, voltage and power | |
| CN101651362B (en) | Novel power grid measuring-controlling system | |
| CN107290019A (en) | A kind of wireless watermeter system based on GSM | |
| CN200996971Y (en) | Composite electric-energy managing system of load control and multiplexing time-sharing charging | |
| CN213072726U (en) | Power distribution network architecture system based on intelligent concentrator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181225 |
|
| RJ01 | Rejection of invention patent application after publication |