CN206722821U - Electric pump well fault real-time diagnosis system based on time series data analysis - Google Patents
Electric pump well fault real-time diagnosis system based on time series data analysis Download PDFInfo
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- CN206722821U CN206722821U CN201720139539.4U CN201720139539U CN206722821U CN 206722821 U CN206722821 U CN 206722821U CN 201720139539 U CN201720139539 U CN 201720139539U CN 206722821 U CN206722821 U CN 206722821U
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Abstract
The electric pump well fault real-time diagnosis system based on time series data analysis is the utility model is related to, applied to oil field well electric pump fault diagnosis filter.System includes underground latent oil device, cable, downhole parameters measurement apparatus, switch board, surface casing pressure, oil pressure, temperature measuring equipment, ground data acquisition and analysis system, fault analysis and handling device, switch board Current Voltage and frequency data acquisition system, each collecting measurement data device and fault analysis and handling device and is connected by data wire with ground data acquisition with analysis system.Fault analysis and handling device analyzes and processes to characteristic parameter, contrasts fault type characteristic parameter, failure judgement type, recommends the measure for solving failure.The utility model realizes electric pump well fault real-time diagnosis, effectively reduces failure erroneous judgement.
Description
Technical field
The present invention relates to oilfield exploitation downhole electric pump technical field, more particularly to the electric pump well based on time series data analysis
Fault real-time diagnosis system.
Background technology
As application of the electric submersible pump in oil field is more and more, because electric submersible pump unit has more than parts and is mutually related
Architectural characteristic, along with itself complicated movement, the factor such as working environment is severe, oil well and well liquid complicated condition are changeable so that
Electric submersible pump resultant fault rate during its use is higher, and the life-span is shorter.Electric submersible pump unit not only needs to carry once breaking down
Machine repairs, and spends substantial amounts of operation cost and price for repairing, and most of failures can cause oil reservoir operating disorders, the exploitation to oil field
Economic and temporal loss is brought, has a strong impact on the normal production of oil well.Therefore, electric pump well fault real-time diagnosis method is carried out
Research has very important significance, and the working condition of electric pump well can be timely and accurately judged, when ensureing the operating of electric pump well
Between, maintenance cost is reduced, improves utilization rate of equipment and installations.Traditional electric pump well method for diagnosing faults is based on electric current, although going out later
The methods of having showed build the pressure method, analysis of vibration signal, Fuzzy Mathematics Analysis, artificial neural network analysis, but the use of these methods
Parameter is single, does not make full use of the various creation datas of electric pump well, while does not also account for the production history of electric pump well,
Cause fault diagnosis reliability relatively low.
The content of the invention
The defects of to overcome prior art to exist, the present invention examine time series data analysis method introducing electric pump well failure in real time
During disconnected, there is provided a kind of electric pump well fault real-time diagnosis system based on time series data analysis, effectively reduce failure erroneous judgement, carry
The degree of accuracy of high electric pump well fault diagnosis type.
To achieve the above object, the present invention adopts the following technical scheme that:
Electric pump well fault real-time diagnosis system based on time series data analysis, oil-immersed pump are connected to oil pipe bottom;Oil-immersed pump,
Gas separator, protector, submersible electric machine with oil are sequentially connected with from top to bottom forms underground latent oil device;Cable is strapped in outside oil pipe,
Submersible electric machine with oil is connect under and, above connects switch board;Downhole parameters measurement apparatus is arranged on the latent oil device of underground;Surface casing pressure measurement dress
Put, well head oil pressure measuring device, wellhead temperature measurement apparatus are installed on wellhead tree tree device;Ground data acquisition is with dividing
Analysis system is installed in ground with fault analysis and handling device;Switch board Current Voltage is arranged on control with frequency data acquisition system
On cabinet;Surface casing pressure measurement apparatus, well head oil pressure measuring device, wellhead temperature measurement apparatus, downhole parameters measurement apparatus, control
Cabinet Current Voltage passes through surface casing pressure data wire, well head oil pressure data wire, wellhead temperature number respectively with frequency data acquisition system
It is connected according to line, downhole parameters data wire, switch board Current Voltage with frequency data line with ground data acquisition with analysis system;
Electric pump well characteristic parameter data wire is connected between fault analysis and handling device and ground data acquisition and analysis system.
Preferably, described surface casing pressure measurement apparatus is located at the sleeve gate of wellhead tree tree device, with oil pipe and
Annular space connection between sleeve pipe;Described well head oil pressure measuring device is located at before the oil nozzle of wellhead tree tree device and oil pipe
The opening position of connection;Described wellhead temperature measurement apparatus is located at what is be connected with external transport pipeline after the oil nozzle of wellhead tree tree device
Opening position.
Preferably, described surface casing pressure measurement apparatus measures surface casing pressure;Described well head oil pressure measuring device measures
Well head oil pressure;Described wellhead temperature measurement apparatus measures wellhead temperature;The underground that described downhole parameters measurement apparatus measures
Parameter, including motor temperature, pump inlet pressure, pump discharge pressure, pump intake temperature;Switch board Current Voltage is adopted with frequency data
Collecting system measures electric current, voltage and the supply frequency exported at switch board.
Preferably, described ground data acquisition gathers ground parameter in real time with analysis system:The ground of submersible electric machine with oil is defeated
Enter electric current, voltage and supply frequency, surface casing pressure, well head oil pressure, wellhead temperature and downhole parameters:Motor temperature, pump intake
Pressure, pump discharge pressure and pump intake temperature, ground parameter collectively form electric pump well production characteristic parameter, electric pump with downhole parameters
Well production characteristic parameter is stored in the storage medium built in ground data acquisition and analysis system;Described ground data acquisition
With being previously stored with oil well production basic data, oil-immersed pump performance data, submersible electric machine with oil performance data and cable in analysis system
Performance data.
Preferably, described ground data acquisition and analysis system using the electric pump well production characteristic parameter gathered in real time and
Oil well production basic data, oil-immersed pump performance data, submersible electric machine with oil performance data and the cable properties data prestored calculate
The real-time traffic of the electric pump well.
Preferably, described fault analysis and handling device by electric pump well characteristic parameter data wire import ground data acquisition with
The electric pump well production characteristic parameter and the flow of calculating stored in analysis system;Fault analysis and handling device is to these characteristic parameters
Analyzed and processed, contrast the fault type characteristic parameter database stored in advance, judge whether failure;To failure be present
Type is analyzed, the solution database according to corresponding to being searched fault type, recommends the measure for solving failure, and in failure
Real-time display fault diagnosis situation and corresponding treatment measures on the display screen of analysis processor.
The technological merit of the present invention is:1. the present invention realizes electric pump well failure using the characteristic parameter data continuously measured
Real-time diagnosis, real-time management.2. time series data analysis method is introduced electric pump well fault diagnosis model by the present invention, electricity is made full use of
Pump sump production history data, failure erroneous judgement can be effectively reduced, improve the degree of accuracy of electric pump well fault diagnosis type.3. the present invention
It using the method for empirical value, can be adjusted according to field condition, be adapted to the application of Oil Field.
Brief description of the drawings
When considered in conjunction with the accompanying drawings, by referring to following detailed description, can more completely more fully understand the present invention with
And easily learn many of which with the advantages of, but accompanying drawing described herein be used for a further understanding of the present invention is provided,
The part of the present invention is formed, schematic description and description of the invention is used to explain the present invention, do not formed to this hair
Bright improper restriction, wherein:
Fig. 1 is that the electric pump well fault real-time diagnosis system based on time series data analysis forms schematic diagram.
Fig. 2 is the electric pump well fault real-time diagnosis method flow chart based on time series data analysis.
In figure, 101- oil-immersed pumps;102- gas separators;103- protectors;104- submersible electric machine with oils;201- sleeve pipes;202-
Oil pipe;301- cables;401- switch boards;402- ground data acquisitions and analysis system;403- fault analysis and handling devices;501- wells
Muzzle presses data wire;502- well head oil pressure data wires;503- wellhead temperature data wires;504- switch boards Current Voltage and frequency number
According to line;505- downhole parameters data wires;506- electric pump well characteristic parameter data wires;701- wellhead tree tree devices;1- well head sets
Pressure measuring device;2- well head oil pressure measuring devices;3- wellhead temperature measurement apparatus;4- downhole parameters measurement apparatus;5- switch boards
Current Voltage and frequency data acquisition system.
Embodiment
As shown in figure 1, the electric pump well fault real-time diagnosis system based on time series data analysis, oil-immersed pump 101 are connected to oil
The bottom of pipe 202;Oil-immersed pump 101, gas separator 102, protector 103, submersible electric machine with oil 104 are sequentially connected with composition well from top to bottom
Lower latent oil device;Cable 301 is strapped in outside oil pipe, under connect submersible electric machine with oil 104, above connect switch board 401;Downhole parameters measurement apparatus
4 are arranged on the latent oil device of underground;Surface casing pressure measurement apparatus 1, well head oil pressure measuring device 2, wellhead temperature measurement apparatus 3 are equal
On wellhead tree tree device 701;Ground data acquisition is respectively mounted with analysis system 402 and fault analysis and handling device 403
On ground;Switch board Current Voltage is arranged on switch board 401 with frequency data acquisition system 5;Surface casing pressure measurement apparatus 1,
Well head oil pressure measuring device 2, wellhead temperature measurement apparatus 3, downhole parameters measurement apparatus 4, switch board Current Voltage and frequency number
Pass through surface casing pressure data wire 501, well head oil pressure data wire 502, wellhead temperature data wire 503, underground respectively according to acquisition system 5
Supplemental characteristic line 505, switch board Current Voltage are connected with frequency data line 504 with ground data acquisition with analysis system 402;
Electric pump well characteristic parameter data wire 506 is connected between fault analysis and handling device 403 and ground data acquisition and analysis system 402.
Underground latent oil device is arranged in sleeve pipe 201.
It is that submersible electric machine with oil 104 is powered by switch board 401.
Surface casing pressure measurement apparatus 1 is located at the sleeve gate of wellhead tree tree device 701, with oil pipe 202 and sleeve pipe 201
Between annular space connection;Described surface casing pressure measurement apparatus 1 measures electric pump well mouth casing pressure value, passes through surface casing pressure number
Electric pump well mouth casing pressure value is passed into ground data acquisition and analysis system 402 according to line 501, realizes adopting in real time for surface casing pressure
Collection.
Well head oil pressure measuring device 2 is located at the opening position being connected before the oil nozzle of wellhead tree tree device 701 with oil pipe;It is described
Well head oil pressure measuring device 2 measure electric pump well well head oil pressure value, well head oil pressure value is passed by well head oil pressure data wire 502
Ground data acquisition and analysis system 402 are passed, realizes the real-time collection of well head oil pressure.
Wellhead temperature measurement apparatus 3 is located at the opening position being connected after the oil nozzle of wellhead tree tree device 701 with external transport pipeline;
Described wellhead temperature measurement apparatus 3 measures the wellhead temperature value of electric pump well, by wellhead temperature data wire 503 by wellhead temperature
Value passes to ground data acquisition and analysis system 402, realizes the real-time collection of wellhead temperature.
The downhole parameters that downhole parameters measurement apparatus 4 gathers, including motor temperature, pump inlet pressure, pump discharge pressure, pump
Inlet temperature.These data pass to ground data acquisition and analysis system 402 by downhole parameters data wire 505, realize well
The real-time collection of lower parameter.
Switch board Current Voltage and electric current, voltage and the electricity exported at the acquisition control cabinet 401 of frequency data acquisition system 5
Source frequency, and electric current, voltage and supply frequency are passed into ground data acquisition and analysis system 402, realize that switch board 401 is defeated
Go out the real-time collection of electric current, voltage and supply frequency.
The described output current of switch board 401, voltage and supply frequency is the ground input electricity of submersible electric machine with oil 104
Stream, ground input voltage and supply frequency.
Described ground data acquisition gathers ground parameter in real time with analysis system 402:The ground input of submersible electric machine with oil 104
Electric current, voltage and supply frequency, surface casing pressure, well head oil pressure, wellhead temperature and downhole parameters:Motor temperature, pump intake pressure
Power, pump discharge pressure and pump intake temperature, ground parameter collectively form electric pump well production characteristic parameter, electric pump well with downhole parameters
Production characteristic parameter is stored in the storage medium built in ground data acquisition and analysis system 402.
Described ground data acquisition is special with being previously stored with oil well production basic data, oil-immersed pump in analysis system 402
Property data, submersible electric machine with oil performance data and cable properties data.
Described oil well production basic data includes electric pump model, motor model, cable model, lower-continuous mapping.
Described oil-immersed pump performance data is included between description flow and pump efficiency, flow and lift, flow and power of motor
The data of relation, highest pump efficiency point and its corresponding data on flows.
Described submersible electric machine with oil performance data include motor model, nominal load when load loss, unloaded magnetization loss,
Motor rated power, motor rated power factor, Rated motor electric current.
Described cable properties data include cable-type number, cable length, conductor reactance and conductor effective impedance.
Described ground data acquisition and analysis system 402 are using the electric pump well production characteristic parameter gathered in real time and in advance
Oil well production basic data, oil-immersed pump performance data, submersible electric machine with oil performance data and the cable properties data of storage calculate the electricity
The real-time traffic of pump sump.
Described fault analysis and handling device 403 by electric pump well characteristic parameter data wire 506 import ground data acquisition with
The electric pump well production characteristic parameter and the flow of calculating stored in analysis system 402;Fault analysis and handling device 403 is special to these
Sign parameter is analyzed and processed, and is contrasted the fault type characteristic parameter database stored in advance, failure is judged whether, if depositing
Then fault type is analyzed in failure, the solution database according to corresponding to being searched fault type, recommend solve failure
Measure, and on the display screen of fault analysis and handling device 403 in the form of dialog box real-time display fault diagnosis situation and phase
The treatment measures answered.
The characteristic parameter of electric pump well failure performance includes frequency situation of change, voltage change situation, curent change situation, pump
Inlet pressure situation of change, pump discharge pressure situation of change, pump intake temperature variations, the poor situation of change of pump pressure, motor temperature
Spend situation of change, well head pressure situation of change, wellhead temperature situation of change and changes in flow rate situation.
Described electric pump well fault type characteristic parameter database includes storm valve pressure release, storm valve is closed,
The following underground check valve above oil pipe of packer has leakage, surface valve to close, pump intake is blocked, preforation tunnel blocks, oil pipe is worn
De-, aqueous increase that hole, flowline are closed, by-passing valve leaks, oil well throttles, pump shaft breaks, frequency increases, frequency is reduced to minimum
Below recommendation, mechanical admixture influences, reservoir pressure rises, solid or viscous liquid enter pump, oil well fouling, oil nozzle and open, be oily
Mouth is excessive, pump wears, pump blocks, free gas increase, air bleeding valve pressure release, the leakage of packer above oil pipe, motor shake at pump intake
Characteristic parameter situation of change corresponding to the fault types such as dynamic, winding failure and every kind of fault type.
Described electric pump well troubleshooting action data storehouse, comes from onsite troubleshooting measure, including it is above-mentioned it is various not
With processing method corresponding to electric pump well fault type.
As shown in Fig. 2 the electric pump well fault real-time diagnosis method based on time series data analysis, is comprised the following steps that:
Step 1:Input oil field electric pump well fault data, it is determined that and extract electric pump well failure performance characteristic parameter, establish
Various electric pump well fault type characteristic parameter databases;Onsite troubleshooting measure is inputted, corresponding to foundation at electric pump well failure
Manage action data storehouse.
Step 2:Electric pump well production characteristic parameter is obtained in real time.
Step 3:Calculate the real-time traffic of the electric pump well
Using in step 2 in real time obtain electric pump well production characteristic parameter and prestore oil well production basic data,
Oil-immersed pump performance data, submersible electric machine with oil performance data and cable properties data, using power-balance method, calculate the reality of the electric pump well
Shi Liuliang.
Step 4:Calculate the average value of production characteristic parameter and flow in 4 periods
Take 1 hour, 4 hours, 12 hours and 24 hours before current point in time respectively totally 4 periods
Historical data, each average value and flow average value of electric pump well production characteristic parameter in this 4 periods is obtained respectively.
Step 5:Calculate the amplitude of variation of production characteristic parameter and flow in 4 periods
Current each production characteristic ginseng value and flow value are respectively produced into feature ginseng with preceding 4 periods calculated in step 4
The average value of number and flow is changed situation differentiation respectively, obtains the phase for producing characteristic parameter and flow of this 4 periods
It is as follows to deviation, calculation formula:
In formula,
The relative deviation of-production characteristic parameter and flow, subscript C represent characteristic parameter species, and subscript 0 represents current
Time;
The currency of-production characteristic parameter and flow, subscript C represents characteristic parameter species, when subscript 0 represents current
Between;
- different time sections produce the average value of characteristic parameter and flow, and subscript C represents characteristic parameter species, subscript t
Represent the period.
Using the method for empirical value, it is determined that the amplitude of variation of production characteristic parameter and flow;Amplitude of variationIt is upper
Mark represents characteristic parameter species, and subscript represents the period, such asThe curent change amplitude of 1 hour before expression.
Empirical value assignment method is as follows:
-0.05≤≤ 0.05, then;
0.05 <≤ 0.10, then;
-0.10≤< -0.05, then;
> 0.10, then;
< -0.10, then。
Foregoing assignment method represents, if certain parameter currency and the relative deviation of the previous hourly average value of the parameter
Less than or equal to 5%, then it is assumed that the parameter constant;If relative deviation is more than 5% and less than or equal to 10%, then it is assumed that the parameter raises,;If relative deviation is more than or equal to -10% and less than -5%, then it is assumed that the parameter reduces,;If relative deviation
More than 10%, then it is assumed that the parameter quickly raises,;If relative deviation is less than -10%, then it is assumed that the parameter quickly reduces,.5%th, 10% is empirical value, can be finely tuned according to field condition;In the past exemplified by the curent change amplitude of 1 hour:
, then it is assumed that electric current is constant,=0;
, then it is assumed that electric current raises,=1;
, then it is assumed that current reduction,=-1;
, then it is assumed that electric current ramp-up rate is fast,=2;
, then it is assumed that current reduction speed is fast,=-2;
Threshold value therein(0.05th, 0.1 is empirical value)It can be finely tuned according to field condition.
Step 6:Calculate the comprehensive evaluation value of each production characteristic parameter and flow within 4 periods
Judging the production characteristic parameter of above-mentioned 4 periods and each amplitude of variation of flowAfterwards, using equal weight
Method obtain the average value of the amplitude of variation of this feature parameter and flow within 4 periods, using empirical value
Method, determine comprehensive evaluation value.If, then it is assumed that it is unchanged,;If, then it is assumed that rise,;If, then it is assumed that reduce,;
If, then it is assumed that ramp-up rate is fast,;If, then it is assumed that reduce
Speed is fast,。
So that the current data of 4 periods judges as an example:
If, then it is assumed that it is unchanged,=0;
If, then it is assumed that rise,=1;
If, then it is assumed that reduce,=-1;
If, then it is assumed that ramp-up rate is fast,=2;
If, then it is assumed that reduction speed is fast,=-2;
Step 7:Judge electric pump well fault type
According to each production characteristic parameter and the comprehensive evaluation value of flow, with reference to establishing electric pump well fault type in step 1
Characteristic parameter database, its comprehensive characteristic parameter situation of change, determines electric pump well fault type.
Step 8:Recommend electric pump well troubleshooting measure
After electric pump well fault diagnosis result, electric pump well troubleshooting action data storehouse is inquired about, recommends corresponding electric pump
Well troubleshooting measure.
Obviously, those skilled in the art belong to the guarantor of the present invention based on many modifications and variations that spirit of the invention is done
Protect scope.
Claims (4)
1. the electric pump well fault real-time diagnosis system based on time series data analysis, oil-immersed pump(101)It is connected to oil pipe(202)Bottom
End;Oil-immersed pump(101), gas separator(102), protector(103), submersible electric machine with oil(104)Composition is sequentially connected with from top to bottom
Underground latent oil device;Cable(301)Be strapped in outside oil pipe, and under connect submersible electric machine with oil(104), above connect switch board(401);Join underground
Number measurement apparatus(4)On the latent oil device of underground;Surface casing pressure measurement apparatus(1), well head oil pressure measuring device(2), well
Mouth temperature measuring equipment(3)It is installed in wellhead tree tree device(701)On;Characterized in that, ground data acquisition and analysis
System(402)With fault analysis and handling device(403)It is installed in ground;Switch board Current Voltage and frequency data acquisition system
(5)Installed in switch board(401)On;Surface casing pressure measurement apparatus(1), well head oil pressure measuring device(2), wellhead temperature measurement dress
Put(3), downhole parameters measurement apparatus(4), switch board Current Voltage and frequency data acquisition system(5)Pass through surface casing pressure respectively
Data wire(501), well head oil pressure data wire(502), wellhead temperature data wire(503), downhole parameters data wire(505), control
Cabinet Current Voltage and frequency data line(504)With ground data acquisition and analysis system(402)It is connected;Fault analysis and handling device
(403)With ground data acquisition and analysis system(402)Between connect electric pump well characteristic parameter data wire(506).
2. the electric pump well fault real-time diagnosis system according to claim 1 based on time series data analysis, it is characterised in that
Described surface casing pressure measurement apparatus(1)Positioned at wellhead tree tree device(701)Sleeve gate at, with oil pipe(202)And set
Pipe(201)Between annular space connection;Described well head oil pressure measuring device(2)Positioned at wellhead tree tree device(701)'s
The opening position being connected before oil nozzle with oil pipe;Described wellhead temperature measurement apparatus(3)Positioned at wellhead tree tree device(701)Oil
The opening position being connected after mouth with external transport pipeline.
3. the electric pump well fault real-time diagnosis system according to claim 1 based on time series data analysis, it is characterised in that
Described surface casing pressure measurement apparatus(1)Measure surface casing pressure;Described well head oil pressure measuring device(2)Measure well head oil pressure;
Described wellhead temperature measurement apparatus(3)Measure wellhead temperature;Described downhole parameters measurement apparatus(4)Measure downhole parameters,
Including motor temperature, pump inlet pressure, pump discharge pressure, pump intake temperature;Switch board Current Voltage and frequency data collection system
System(5)Measure switch board(401)Locate electric current, voltage and the supply frequency of output.
4. the electric pump well fault real-time diagnosis system according to claim 1 based on time series data analysis, it is characterised in that
Described ground data acquisition and analysis system(402)The ground parameter gathered in real time includes submersible electric machine with oil(104)Ground it is defeated
Enter electric current, voltage and supply frequency, surface casing pressure, well head oil pressure, wellhead temperature, the downhole parameters gathered in real time include motor temperature
Degree, pump inlet pressure, pump discharge pressure and pump intake temperature, ground parameter collectively form electric pump well production feature with downhole parameters
Parameter, electric pump well production characteristic parameter are stored in ground data acquisition and analysis system(402)In built-in storage medium;It is described
Ground data acquisition and analysis system(402)In be previously stored with oil well production basic data, oil-immersed pump performance data, latent oil
Motor characteristic data and cable properties data.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111766831A (en) * | 2020-07-16 | 2020-10-13 | 四机赛瓦石油钻采设备有限公司 | Intelligent control system and method for electric submersible pump |
CN113513301A (en) * | 2020-04-09 | 2021-10-19 | 中国石油化工股份有限公司 | Online water-containing real-time detection system based on electric pump sensor and detection method thereof |
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2017
- 2017-02-16 CN CN201720139539.4U patent/CN206722821U/en active Active
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CN113513301A (en) * | 2020-04-09 | 2021-10-19 | 中国石油化工股份有限公司 | Online water-containing real-time detection system based on electric pump sensor and detection method thereof |
CN113513301B (en) * | 2020-04-09 | 2024-03-15 | 中国石油化工股份有限公司 | Online water content real-time detection system based on electric pump sensor and detection method thereof |
CN111766831A (en) * | 2020-07-16 | 2020-10-13 | 四机赛瓦石油钻采设备有限公司 | Intelligent control system and method for electric submersible pump |
CN111766831B (en) * | 2020-07-16 | 2021-10-22 | 四机赛瓦石油钻采设备有限公司 | Intelligent control system and method for electric submersible pump |
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