CN106468167B - For calculating the method and system of electric immersible pump well Liquid output - Google Patents
For calculating the method and system of electric immersible pump well Liquid output Download PDFInfo
- Publication number
- CN106468167B CN106468167B CN201510501662.1A CN201510501662A CN106468167B CN 106468167 B CN106468167 B CN 106468167B CN 201510501662 A CN201510501662 A CN 201510501662A CN 106468167 B CN106468167 B CN 106468167B
- Authority
- CN
- China
- Prior art keywords
- unit
- power
- submersible pump
- electric
- electric submersible
- 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.)
- Active
Links
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of for calculating the method and system of electric immersible pump well Liquid output, this method comprises: obtaining the general power inputted at electric immersible pump well well head；The input power of electric submersible pump is obtained based on input power consumption model and the general power；Establish the metering model of the lift of input power and electric submersible pump based on the electric submersible pump；Metering model using metering model described in genetic algorithm optimization, and after optimizing application carries out real-time measurement to oilwell produced fluid amount.Metering model by establishing electric immersible pump well measures the liquid measure of oil well, realizes the real-time detection of electric immersible pump well liquid measure, and measurement accuracy is high, easy implementation easy to operate, while can carry out on-line monitoring and fault diagonosing to electric immersible pump well.
Description
Technical field
The present invention relates to petroleum exploration fields more particularly to a kind of for calculating the method for electric immersible pump well Liquid output and being
System.
Background technique
Metering for the Liquid output of oil well is a very important job in oil field production and governance process.Exist at present
The country, most of oil field carry out oil exploitation using electric submersible pump, and electric submersible pumping technology is to draw from foreign countries early 1980s
Into, due to its have many advantages, such as that discharge capacity is big, power is high, ground installation is small, maintenance cost is low and energy transmission mode is simple and
It is applied widely.
Oil well measurement requires metric results accurately and in time.The Liquid output of the submersible electric pump well generallyd use in the prior art
Metering method include separator glass tube metering method, tipping bucket type Weighing method, gas-liquid split-phase metering method and work
Dynamic scale car metering method etc..The above method is all had some limitations due to the limitation of measuring principle using upper.Example
Such as, the ground auxiliary construction investment of separator glass tube metering method is larger, complicated for operation, can not achieve the continuous meter of oil well
Amount.Tipping bucket type Weighing method also needs more complex ground auxiliary construction, while this kind of method is compared with around vulnerable to oily area
External environment influence.Gas-liquid split-phase metering method is when measuring aqueous higher oil well, it may appear that biggish mistake
Difference.The large labor intensity of movable scale car metering method, and be affected by weather condition.
To sum up, the Liquid output for needing a kind of pair of submersible electric pump well carries out accurate and real time measure method to solve above-mentioned ask
Topic.
Summary of the invention
The first technical problem to be solved by the present invention is to need to provide the Liquid output progress of a kind of pair of electric submersible pump oil liquid well
Accurate and real time measure method.
In order to solve the above-mentioned technical problem, embodiments herein provides firstly a kind of for calculating electric immersible pump well production liquid
The method of amount, including obtaining the general power inputted at electric immersible pump well well head；It is obtained based on input power consumption model with the general power
The input power of electric submersible pump；Establish the metering model of the lift of input power and electric submersible pump based on the electric submersible pump；It utilizes
Metering model described in genetic algorithm optimization, and the metering model after optimizing application carries out real-time measurement to oilwell produced fluid amount.
Preferably, the step of establishing the metering model of lift of input power and electric submersible pump based on the electric submersible pump
In, comprising: the number of segment of segmentation is chosen according to electric submersible pump characteristic；The relation curve of lift and liquid outlet quantity to electric submersible pump is segmented
Linearisation, and segment factor is obtained according to the result of piece-wise linearization；Liquid measure is obtained based on functional relationship and the segment factor
Coefficient；The metering model between the input power of electric submersible pump and the lift of electric submersible pump is established using the liquid measure coefficient.
Preferably, the liquid measure coefficient c is obtained according to following formulai:
In formula, kiFor segment factor, ηiFor the pump efficiency of the electric submersible pump corresponding to each section, ρ is the density of liquid, unit
For kilograms per cubic meter, i be Linear Segmentation number of segment.
Preferably, the metering model is established according to following formula:
In formula, QiFor each section on the lift of electric submersible pump and the relation curve of liquid outlet quantity of liquid measure, unit be cubic meter/
It, PeiFor the input power of the electric submersible pump corresponding to each section, unit is kilowatt.
Preferably, in the step of utilizing metering model described in genetic algorithm optimization, comprising: Step 1: by the liquid measure
Coefficient coding is the individual in population；Step 2: the scale of initialization population, select probability, crossover probability and mutation probability；
Step 3: calculating the fitness function of each individual in population, and chosen according to the fitness function and the select probability
Multiple individuals；Step 4: the multiple individual is intersected and made a variation according to the crossover probability and mutation probability, and
Population is added in the new individual of generation；Step 5: repeating step 3 and step 4 until finding satisfied individual.
Embodiments herein additionally provides a kind of system for calculating electric immersible pump well Liquid output, comprising: data acquisition
Module obtains the general power inputted at electric immersible pump well well head；Function change-over module, based on input power consumption model and described total
Power obtains the input power of electric submersible pump；Model building module establishes input power and electric submersible pump based on the electric submersible pump
Lift metering model；Optimizing detection module, using metering model described in genetic algorithm optimization, and after optimizing application
Metering model carries out real-time measurement to oilwell produced fluid amount.
Preferably, model building module includes: selections unit, and the number of segment of segmentation is chosen according to electric submersible pump characteristic；Linearly
Change unit, the relation curve of lift and liquid outlet quantity to electric submersible pump carries out piece-wise linearization, and according to the knot of piece-wise linearization
Fruit obtains segment factor；Coefficient elements obtain liquid measure coefficient based on functional relationship and the segment factor；Modeling unit,
The metering model between the input power of electric submersible pump and the lift of electric submersible pump is established using the liquid measure coefficient.
Preferably, coefficient elements obtain the liquid measure coefficient c according to following formulai:
In formula, kiFor segment factor, ηiFor the pump efficiency of the electric submersible pump corresponding to each section, ρ is the density of liquid, unit
For kilograms per cubic meter, i be Linear Segmentation number of segment.
Preferably, modeling unit establishes the metering model according to following formula:
In formula, QiFor each section on the lift of electric submersible pump and the relation curve of liquid outlet quantity of liquid measure, unit be cubic meter/
It, PeiFor the input power of the electric submersible pump corresponding to each section, unit is kilowatt.
Preferably, optimizing detection module optimizes the metering model according to following steps: Step 1: by the liquid measure coefficient
The individual being encoded in population；Step 2: the scale of initialization population, select probability, crossover probability and mutation probability；Step
Three, the fitness function of each individual in population is calculated, and multiple according to the fitness function and select probability selection
Individual；Step 4: the multiple individual is intersected and made a variation according to the crossover probability and mutation probability, and will produce
Population is added in raw new individual；Step 5: repeating step 3 and step 4 until finding satisfied individual.
Compared with prior art, one or more embodiments in above scheme can have following advantage or beneficial to effect
Fruit:
Metering model by establishing electric immersible pump well measures the liquid measure of oil well, realizes the reality of electric immersible pump well liquid measure
When detect, measurement accuracy is high, easy implementation easy to operate, while can carry out on-line monitoring and fault diagonosing to electric immersible pump well.
Other advantages, target and feature of the invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.Target and other advantages of the invention can be wanted by following specification, right
Specifically noted structure is sought in book and attached drawing to be achieved and obtained.
Detailed description of the invention
Attached drawing is used to provide to the technical solution of the application or further understanding for the prior art, and constitutes specification
A part.Wherein, the attached drawing for expressing the embodiment of the present application is used to explain the technical side of the application together with embodiments herein
Case, but do not constitute the limitation to technical scheme.
Fig. 1 is the flow diagram of the method for calculating Liquid output of the embodiment of the present application；
Fig. 2 (a)-(b) is the schematic diagram that the electric immersible pump well system capacity of the embodiment of the present application flows；
Fig. 3 is the schematic equivalent circuit of the power cable of the embodiment of the present application；
Fig. 4 is the schematic equivalent circuit of the submersible motor of the embodiment of the present application；
Fig. 5 is the characteristic curve schematic diagram of the electric submersible pump of the embodiment of the present application；
Fig. 6 is one example of the application electric submersible pump electric work schematic diagram collected；
Fig. 7 is the optimum results schematic diagram of the exemplary liquid measure coefficient of the application one；
Fig. 8 is the contrast schematic diagram of the exemplary metric results of the application one；
Fig. 9 is the structural schematic diagram of the system for calculating Liquid output of the embodiment of the present application.
Specific embodiment
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, how to apply to the present invention whereby
Technological means solves technical problem, and the realization process for reaching relevant art effect can fully understand and implement.This Shen
Please each feature in embodiment and embodiment, can be combined with each other under the premise of not colliding, be formed by technical solution
It is within the scope of the present invention.
Fig. 1 is the flow diagram of the method for calculating Liquid output of the embodiment of the present application, and this method includes following step
It is rapid:
Step S110, the general power inputted at electric immersible pump well well head is acquired.Step S120, based on input power consumption model and institute
It states general power and obtains the input power of electric submersible pump.Step S130, input power based on the electric submersible pump and electric submersible pump are established
Lift metering model.Step S140, the metering model using metering model described in genetic algorithm optimization, and after optimizing application
Real-time measurement is carried out to oilwell produced fluid amount.
Specifically, measuring the voltage U at electric immersible pump well well head using voltage transformer and current transformerWell headAnd electric current
IWell head, which is the total voltage and total current for being applied to electric immersible pump well system.It can be with according to the voltage and current measured
Acquiring and being input to the general power of electric immersible pump well system is PWell head=UWell head*IWell head。
Typical electric immersible pump well system mainly includes above ground portion and underground part two parts.Wherein, above ground portion is main
It is made of land cable, transformer, control cabinet and power cable etc., underground part is mainly by submersible motor, protector, oil gas
The composition such as separator, electric submersible pump and tubing string.In the course of work of electric immersible pump well system, exist on above-mentioned each component part
Power loss.
Fig. 2 (a)-(b) is the schematic diagram that the electric immersible pump well system capacity of the embodiment of the present application flows, wherein Fig. 2 (a) is
Complete energy flow schematic diagram, it can be seen from the figure that shown in final electric submersible pump power obtained such as expression formula (1):
PPump=PWell head-∑PDamage (1)
In formula, PPumpFor the input power of electric submersible pump, PDamageFor the power loss of component parts different in electric immersible pump well system.Electricity
The latent power that finally obtains of pumping is equal to the power loss that the general power that is input in electric immersible pump well system subtracts each component part
Summation.
Further, in each component part of electric immersible pump well system, transformer, control cabinet, protector, gs-oil separator
And the power loss on tubing string is usually no more than the 1% of the general power being input in electric immersible pump well system, can be ignored,
Therefore, in embodiments herein, only consider the power loss on power cable and submersible motor, simplified energy flow
Shown in schematic diagram such as Fig. 2 (b).
Next, calculating the input power obtained on electric submersible pump based on input power consumption model.It includes dynamic for inputting power consumption model
Power cable power consumption model and submersible motor power consumption model, are illustrated individually below.
Power cable power consumption model is established to obtain based on the operation mechanism of power cable with transmission performance.Power cable is to use
In connection submersible motor and other power supply units of ground and a kind of private cable of equipment is controlled, there is oil resistant, salt tolerant, corrosion-resistant
Characteristic.The principal element for influencing power cable transmission performance has bottom hole temperature (BHT), the power of submersible motor, voltage and current, with
And gap between tubing coupling and casing etc..The loss of voltage and power loss of power cable and the sectional area and length of cable
It is closely related.The equivalent circuit of power cable is as shown in figure 3, wherein r1、x1、b1And g1Respectively unit length power cable
Resistance, reactance, susceptance and conductance.Then the impedance of the power cable of unit length is Z1=r1+jx1, the power cable of unit length
Admittance be Y1=g1+jb1, according to shown in the power cable power consumption model such as expression formula (2) of Fig. 3 foundation:
In formula, Z ' is the equivalent impedance of power cable, and unit is Ω (ohm), and Y ' is the equivalent admittance of power cable,
Its unit is s (Siemens), ZcFor the characteristic impedance of the power cable of unit length, unit is Ω (ohm), and value can be with
ByIt is calculated；γ is propagation coefficient, and value can be byIt is calculated；L is the length of power cable
Degree, unit are m (rice).
According to the voltage and current for being input to above-mentioned power cable power consumption model, it is generally approximately considered the voltage and current etc.
Voltage U at electric immersible pump well well headWell headWith electric current IWell head, submersible motor input terminal can be calculated and obtain voltage UMAnd electric current
IM, i.e. the input power of submersible motor, as shown in Fig. 2 (b).
Submersible motor power consumption model is modeled based on the operation mechanism of submersible motor with transmission performance.Engineering is general in practice
All over using threephase asynchronous to provide energy for oil well.Threephase asynchronous is usually non-linear and time-varying, input
Variable is more, and has complicated coupled relation between each variable.
The equivalent circuit of submersible motor is as shown in Figure 4, wherein RsFor equivalent stator resistance, RrFor equivalent rotor electricity
Resistance, XsFor equivalent stator induction reactance, XrFor equivalent rotor induction reactance, RFeFor equivalent iron loss resistance, XaFor equivalent excitation sense
It is anti-.After the input voltage and input current of known submersible motor, the output electricity of load end can be calculated according to equivalent circuit
The amount of pressing toWith output current vectorThe power consumption model of the submersible motor as shown in expression formula (3) is recycled to be calculated latent
The output power of oily motor:
In formula, PLFor the output power of submersible motor, unit is kW (kilowatt),For load end output voltage to
Amount, unit are kilovolt,Indicate the output current vector of load endConjugation, unit be ampere.
The output power for the submersible motor being calculated is the input power of electric submersible pump, as shown in Fig. 2 (b).
Electric submersible pump is a kind of electric centrifugal pump, and the course of work is, under the drive of submersible motor, impeller high speed is revolved
Turn, by converting the kinetic energy of high-speed rotation to the potential energy of low speed lifting, is stepped up liquid potential energy, finally obtains centainly
Liquid in oil well is simultaneously lifted to ground by lift, shown in the above process such as expression formula (4):
Q=1000 η Pe/ρgH (4)
In formula, Q is the liquid outlet quantity of electric submersible pump, i.e. discharge capacity, unit m3/ d (cubic meter/day), PeFor the input of electric submersible pump
Power, unit are kW (kilowatt), and η is the pump efficiency of electric submersible pump, and H is the lift of electric submersible pump, and unit is m (rice), and wherein g attaches most importance to
Power acceleration, takes 9.8m/s2。
It should be noted that in actual operation, pump efficiency η, the input power P of electric submersible pumpeAnd there is height between lift H
Nonlinear close coupling relationship is spent, as shown in figure 5, wherein curve 1 is that the relationship between the lift H and liquid outlet quantity Q of electric submersible pump is bent
Line, curve 2 are the relation curve between the pump efficiency η and liquid outlet quantity Q of electric submersible pump, and curve 3 is the input power P of electric submersible pumpeWith go out
Relation curve between liquid measure Q.
It is more difficult due to being modeled to this close coupling relationship, in embodiments herein, using segmentation
Relationship between the method fitting lift and the liquid outlet quantity of electric submersible pump of linearisation, can reduce error of fitting significantly.
Firstly, choosing the number of segment of segmentation according to electric submersible pump characteristic.Then according to selected segments, to the lift of electric submersible pump
Piece-wise linearization is carried out with the characteristic curve of liquid outlet quantity, and segment factor is obtained according to the result of piece-wise linearization.Specifically, such as
Shown in expression formula (5):
Hi=kiQi (5)
In formula, HiFor each section on lift and the relation curve of liquid outlet quantity of lift, unit is m (rice), QiFor lift with
Each section of liquid measure on the relation curve of liquid outlet quantity, unit m3/ d (cubic meter/day), kiFor segment factor, i is linearisation
The number of segment of segmentation.
It can establish between the input power of electric submersible pump and the lift of electric submersible pump according to expression formula (4) and expression formula (5)
Metering model:
In formula, PeiFor the input power of the electric submersible pump corresponding to each section, unit is kW (kilowatt), ciFor liquid measure system
Number, value can be calculated by expression formula (7):
In formula, ηiFor the pump efficiency of the electric submersible pump corresponding to each section, it can be seen that liquid measure coefficient ciAccuracy decide
The precision of metering model.In embodiments herein, directly using genetic algorithm to liquid measure coefficient ciIt optimizes, it is specific to walk
It is rapid as follows:
Step 1: being the individual in population by liquid measure coefficient coding.
Step 2: the scale of initialization population, select probability, crossover probability and mutation probability.
Step 3: calculating the fitness function of each individual in population, and chosen according to fitness function and select probability
Multiple individuals.
Step 4: multiple individuals are intersected and are made a variation according to crossover probability and mutation probability, and by generation
Population is added in new individual.
Step 5: repeating step 3 and step 4 until finding satisfied individual.
Specifically, coding takes binary-coded form, using the number of segment of linearisation as the digit of coding.To original species
Group is initialized, and each of population individual is made to have above-mentioned coding form.The initialization of population includes that initialization is first
Scale, select probability, crossover probability and the mutation probability of beginning population.The above process can determine at random according to function.
Common selection mode mainly includes ratio selection mode and league matches selection mode.In ratio selection mode, respectively
The selected probability selected of individual is proportional to the fitness value of individual, i.e., individual fitness value is bigger, the probability selected
It is higher.In league matches selection mode, all new individuals of individual and the generation of this genetic manipulation in previous generation population are put
To together, by the decision queue of fitness value from big to small, the multiple individuals for coming front is then taken to form group of new generation.In
In embodiments herein, using ratio selection mode, wherein fitness value using metering model shown in expression formula (6) into
Row calculates.New individual is generated by selection, intersection, variation, forms new population, and new population repetition is selected, is intersected,
Mutation operation, until reaching preset number or stopping iterative process after obtaining satisfied individual.It is obtained when using expression formula (6)
The liquid outlet quantity of prediction and the liquid outlet quantity of actual measurement between individual of difference when being less than preset value be satisfied individual.And with
Liquid measure coefficient represented by this individual establishes metering model according to expression formula (6), recycles the metering model of foundation to producing well
Liquid output measure.
The method for calculating Liquid output of the embodiment of the present application can be used in the individual well measurement of submersible electric pump well, operation letter
Single, operation and maintenance cost is low.This method is effective strong, and real-time on-line measurement may be implemented, improve the precision of measurement.
Fig. 6, Fig. 7 and Fig. 8 are the example that liquid volume measurement is carried out using the method for the embodiment of the present application, and wherein Fig. 6 is
One example of the application electric submersible pump electric work schematic diagram collected, Fig. 7 are that the optimum results of the exemplary liquid measure coefficient of the application one show
It is intended to, using data shown in Fig. 6 as sample data, when using genetic algorithm optimization liquid measure coefficient, the number of segment of segmentation is 30, setting
The number of iterations is 3800 steps, finally exports 30 preferred liquid measure coefficients, as shown in Figure 7.It is established using obtained liquid measure coefficient
The lift of the electric submersible pump of segmentation and the characteristic curve of liquid measure, and it is latent to electricity using obtained characteristic curve (electric submersible pump metering model)
The liquid measure of pump carries out real-time measurement, pair between the actual measured value of the measurement result and liquid measure that measure using metering model
It is more as shown in Figure 8 than scheming.Wherein, curve 1 indicates the liquid measure value of actual measurement, and curve 2 indicates the measurement obtained using metering model
Value, it can be seen that the two has preferable fitting effect, the metering model of the embodiment of the present application measurement accuracy with higher.
In the other embodiments of the application, a kind of system for calculating electric immersible pump well Liquid output, such as Fig. 9 are additionally provided
Shown, which includes:
Data acquisition module 91 acquires the input power at well head.
Function change-over module 92 obtains the defeated of electric submersible pump using the input power of the well head based on input power consumption model
Enter power.
Model building module 93 establishes the metering mould of the lift of input power and electric submersible pump based on the electric submersible pump
Type.
Optimizing detection module 94 using metering model described in genetic algorithm optimization, and utilizes the metering model after optimization
Real-time measurement is carried out to oilwell produced fluid amount.
Further, model building module 93 further include:
Selections unit 931 chooses number of segment according to production plan.
Linearizer 932, the characteristic curve of lift and liquid measure to electric submersible pump carry out piece-wise linearization, and according to point
The result of section linearisation obtains segment factor.
Coefficient elements 933 obtain liquid measure coefficient based on functional relationship and the segment factor.
Modeling unit 934 is established based on liquid measure coefficient between the input power of electric submersible pump and the lift of electric submersible pump
Metering model.
Although disclosed herein embodiment it is as above, the content is only to facilitate understanding the present invention and adopting
Embodiment is not intended to limit the invention.Any those skilled in the art to which this invention pertains are not departing from this
Under the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But scope of patent protection of the invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (8)
1. a kind of method for calculating electric immersible pump well Liquid output, comprising:
Obtain the general power inputted at electric immersible pump well well head；
The input power of submersible motor is obtained based on the general power and power cable power consumption model, the input based on submersible motor
Power and submersible motor power consumption model obtain the output power of submersible motor, latent using the output power of the submersible motor as electricity
The input power of pump,
Wherein, power cable power consumption model is,
Z '=l Zcsinb1γl
Y '=2 (cosb1γl-1)/Zcsinb1γl
Wherein, Z ' is the equivalent impedance of power cable, and unit is ohm, and Y ' is the equivalent admittance of power cable, and unit is
Siemens, ZcFor the characteristic impedance of the power cable of unit length, unit is ohm, and γ is propagation coefficient, and l is power cable
Length, unit be rice, b1For the susceptance of unit length power cable, unit is Siemens,
Wherein, submersible motor power consumption model is,
Wherein, PLFor the output power of submersible motor, unit is kilowatt,For the output voltage vector of load end, unit
For kilovolt,Indicate the output current vector of load endConjugation, unit be ampere；
Establish the metering model of the lift of input power and electric submersible pump based on the electric submersible pump；
Metering model using metering model described in genetic algorithm optimization, and after optimizing application surveys oilwell produced fluid amount in real time
Amount；
Wherein, in the step of establishing the metering model of lift of input power and electric submersible pump based on the electric submersible pump, comprising:
The number of segment of segmentation is chosen according to electric submersible pump characteristic；
The relation curve of lift and liquid outlet quantity to electric submersible pump carries out piece-wise linearization, and is obtained according to the result of piece-wise linearization
Segment factor；
Pump efficiency and the segment factor based on electric submersible pump obtain liquid measure coefficient；
The metering model between the input power of electric submersible pump and the lift of electric submersible pump is established using the liquid measure coefficient.
2. the method according to claim 1, wherein obtaining the liquid measure coefficient c according to following formulai:
In formula, kiFor segment factor, ηiFor the pump efficiency of the electric submersible pump corresponding to each section, ρ is the density of liquid, unit thousand
Gram/cubic metre, i are the number of segment of Linear Segmentation.
3. according to the method described in claim 2, it is characterized in that, establishing the metering model according to following formula:
In formula, QiFor each section on the lift of electric submersible pump and the relation curve of liquid outlet quantity of liquid measure, unit is cubic meter/day,
PeiFor the input power of the electric submersible pump corresponding to each section, unit is kilowatt.
4. the method according to claim 1, wherein the step of utilizing metering model described in genetic algorithm optimization
In, comprising:
Step 1: being the individual in population by the liquid measure coefficient coding；
Step 2: the scale of initialization population, select probability, crossover probability and mutation probability；
Step 3: calculating the fitness function of each individual in population, and according to the fitness function and the select probability
Choose multiple individuals；
Step 4: the multiple individual is intersected and made a variation according to the crossover probability and mutation probability, and will produce
Population is added in raw new individual；
Step 5: repeating step 3 and step 4 until finding satisfied individual.
5. a kind of system for calculating electric immersible pump well Liquid output, comprising:
Data acquisition module obtains the general power inputted at electric immersible pump well well head；
Function change-over module obtains the input power of submersible motor, base based on the general power and power cable power consumption model
The output power of submersible motor is obtained in the input power and submersible motor power consumption model of submersible motor, by the submersible motor
Input power of the output power as electric submersible pump,
Wherein, power cable power consumption model is,
Z '=l Zcsinb1γl
Y '=2 (cosb1γl-1)/Zcsinb1γl
Wherein, Z ' is the equivalent impedance of power cable, and unit is ohm, and Y ' is the equivalent admittance of power cable, and unit is
Siemens, ZcFor the characteristic impedance of the power cable of unit length, unit is ohm, and γ is propagation coefficient, and l is power cable
Length, unit be rice, b1For the susceptance of unit length power cable, unit is Siemens,
Wherein, submersible motor power consumption model is,
Wherein, PLFor the output power of submersible motor, unit is kilowatt,For the output voltage vector of load end, unit
For kilovolt,Indicate the output current vector of load endConjugation, unit be ampere；
Model building module establishes the metering model of the lift of input power and electric submersible pump based on the electric submersible pump；
Optimizing detection module, using metering model described in genetic algorithm optimization, and the metering model after optimizing application is to oil well
Liquid output carries out real-time measurement；
Wherein, the model building module includes:
Selections unit chooses the number of segment of segmentation according to electric submersible pump characteristic；
The relation curve of linearizer, lift and liquid outlet quantity to electric submersible pump carries out piece-wise linearization, and according to segmented line
The result of property obtains segment factor；
Coefficient elements, pump efficiency and the segment factor based on electric submersible pump obtain liquid measure coefficient；
Modeling unit establishes the metering mould between the input power of electric submersible pump and the lift of electric submersible pump using the liquid measure coefficient
Type.
6. system according to claim 5, which is characterized in that the coefficient elements obtain the liquid according to following formula
Coefficient of discharge ci:
In formula, kiFor segment factor, ηiFor the pump efficiency of the electric submersible pump corresponding to each section, ρ is the density of liquid, unit thousand
Gram/cubic metre, i are the number of segment of Linear Segmentation.
7. system according to claim 6, which is characterized in that the modeling unit establishes the meter according to following formula
Measure model:
In formula, QiFor each section on the lift of electric submersible pump and the relation curve of liquid outlet quantity of liquid measure, unit is cubic meter/day,
PeiFor the input power of the electric submersible pump corresponding to each section, unit is kilowatt.
8. system according to claim 5, which is characterized in that described in the optimizing detection module optimizes according to following steps
Metering model:
Step 1: being the individual in population by the liquid measure coefficient coding；
Step 2: the scale of initialization population, select probability, crossover probability and mutation probability；
Step 3: calculating the fitness function of each individual in population, and according to the fitness function and the select probability
Choose multiple individuals；
Step 4: the multiple individual is intersected and made a variation according to the crossover probability and mutation probability, and will produce
Population is added in raw new individual；
Step 5: repeating step 3 and step 4 until finding satisfied individual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501662.1A CN106468167B (en) | 2015-08-14 | 2015-08-14 | For calculating the method and system of electric immersible pump well Liquid output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501662.1A CN106468167B (en) | 2015-08-14 | 2015-08-14 | For calculating the method and system of electric immersible pump well Liquid output |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106468167A CN106468167A (en) | 2017-03-01 |
| CN106468167B true CN106468167B (en) | 2019-11-08 |
Family
ID=58214801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510501662.1A Active CN106468167B (en) | 2015-08-14 | 2015-08-14 | For calculating the method and system of electric immersible pump well Liquid output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106468167B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191178A (en) * | 2017-07-21 | 2017-09-22 | 中国海洋石油总公司 | A kind of oil field well stream real-time metering system and method |
| WO2020097301A1 (en) * | 2018-11-08 | 2020-05-14 | Schlumberger Technology Corporation | Electrical submersible pump control |
| CN112392459A (en) * | 2019-08-14 | 2021-02-23 | 中国石油天然气股份有限公司 | Method and device for determining production characteristics of electric submersible plunger pump well |
| CN113700638B (en) * | 2020-05-22 | 2023-06-02 | 中国海洋石油集团有限公司 | Edge calculation intelligent regulation and control method suitable for ESP production diving |
| CN114165216A (en) * | 2020-09-10 | 2022-03-11 | 中国石油化工股份有限公司 | Single-well continuous multiphase flow metering system, storage medium and computer equipment |
| CN111980668B (en) * | 2020-09-25 | 2023-07-18 | 中国海洋石油集团有限公司 | Oilfield well flow real-time metering system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2394071A1 (en) * | 2001-07-23 | 2003-01-23 | Baker Hughes Incorporated | Virtual sensors to provide expanded downhole instrumentation for electrical submersible pumps (esps) |
| CN1740515A (en) * | 2005-09-23 | 2006-03-01 | 中国石油天然气股份有限公司 | Well logging power graph method and device |
| CN1970991A (en) * | 2006-12-06 | 2007-05-30 | 中国石油大学(北京) | Method for metering oil production yield and analyzing and optimizing operating condition of oil well and system thereof |
| CN104405365A (en) * | 2014-10-29 | 2015-03-11 | 北京伯仲佳和石油技术开发有限公司 | Pumping unit indicator diagram liquid production capacity measurement technology |
| CN104504236A (en) * | 2014-11-24 | 2015-04-08 | 贵州航天凯山石油仪器有限公司 | New method for pump diagram metering stability |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7406398B2 (en) * | 2004-06-05 | 2008-07-29 | Schlumberger Technology Corporation | System and method for determining pump underperformance |
| US8141646B2 (en) * | 2007-06-26 | 2012-03-27 | Baker Hughes Incorporated | Device and method for gas lock detection in an electrical submersible pump assembly |
-
2015
- 2015-08-14 CN CN201510501662.1A patent/CN106468167B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2394071A1 (en) * | 2001-07-23 | 2003-01-23 | Baker Hughes Incorporated | Virtual sensors to provide expanded downhole instrumentation for electrical submersible pumps (esps) |
| CN1740515A (en) * | 2005-09-23 | 2006-03-01 | 中国石油天然气股份有限公司 | Well logging power graph method and device |
| CN1970991A (en) * | 2006-12-06 | 2007-05-30 | 中国石油大学(北京) | Method for metering oil production yield and analyzing and optimizing operating condition of oil well and system thereof |
| CN104405365A (en) * | 2014-10-29 | 2015-03-11 | 北京伯仲佳和石油技术开发有限公司 | Pumping unit indicator diagram liquid production capacity measurement technology |
| CN104504236A (en) * | 2014-11-24 | 2015-04-08 | 贵州航天凯山石油仪器有限公司 | New method for pump diagram metering stability |
Non-Patent Citations (1)
| Title |
|---|
| 电潜泵井系统效率的仿真模型;姚春东等;《石油机械》;20130510;第41卷(第5期);第64-68页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106468167A (en) | 2017-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106468167B (en) | For calculating the method and system of electric immersible pump well Liquid output | |
| CN108805215A (en) | Based on the Dlagnosis of Sucker Rod Pumping Well dynamic liquid level flexible measurement method for improving drosophila algorithm | |
| CN103954843B (en) | One does not disconnect ground lead pole tower ground resistance and measures injection power frequency method of determining range | |
| CN106321051B (en) | A method of for optimizing multistage pressure break horizontal well network fracture parameter | |
| CN103198354B (en) | One utilizes BP neural network and non-dominated sorted genetic algorithm NSGA2 to realize oil-field oil pumper oil recovery energy-saving and production-increase optimization method | |
| CN109711595A (en) | A kind of hydraulic fracturing operation effect evaluation method based on machine learning | |
| CN104462715B (en) | A kind of modeling method of the photovoltaic cell output characteristic based on Bezier functions | |
| CN110490409A (en) | A kind of low-voltage platform area line loss per unit mark post value setting method based on DNN | |
| CN104484952B (en) | Farmland surface water management and control system, manufacturing method thereof and farmland surface water management and control irrigation and drainage method | |
| CN107143322A (en) | With the device and method of electrical parameter metering individual well Liquid output | |
| CN113486594A (en) | Method for constructing electric water-folding calculation model and method and device for determining water consumption | |
| CN106531240B (en) | A kind of heat exchanger, reactor simulation system and its Natural Circulation, which are stagnated, restarts analogue experiment method | |
| CN111488718A (en) | Closed-loop identification method for comprehensive load mechanism model of power distribution network | |
| CN104916049A (en) | Novel pumped water measuring system for motor-pumped wells | |
| CN107461191A (en) | One kind is with brill orientation electromagnetic wave frontier probe instrument temperature scale method | |
| CN107085646A (en) | A kind of field strength measurement method in ground under transmission line of electricity | |
| CN105741049A (en) | Space-time whole process oriented line loss change analysis method | |
| CN108843296A (en) | A kind of individual well refracturing effect prediction method based under multifactor impact | |
| CN104750941B (en) | Asynchronous motor multistage centrifugal pump system modeling method based on power matching | |
| CN104267298B (en) | A kind of calculation method of parameters of double winding power transformer | |
| CN108132399A (en) | A kind of simplification interpolation algorithm for improving digital transformer substation power quality analysis precision | |
| CN113553539A (en) | Oil well working condition identification and diagnosis system | |
| Mutluer et al. | Application of a hybrid evolutionary technique for efficiency determination of a submersible induction motor. | |
| CN107729593A (en) | A kind of insulator detecting robot measurement voltage value correction method based on SVMs | |
| CN110424944B (en) | Method for establishing oil-water phase-permeation-simulated curve of giant-thick carbonate oil reservoir |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |