CN107503732A - A kind of automatic pay-off control system of swabbing operation and control method - Google Patents
A kind of automatic pay-off control system of swabbing operation and control method Download PDFInfo
- Publication number
- CN107503732A CN107503732A CN201710795639.7A CN201710795639A CN107503732A CN 107503732 A CN107503732 A CN 107503732A CN 201710795639 A CN201710795639 A CN 201710795639A CN 107503732 A CN107503732 A CN 107503732A
- Authority
- CN
- China
- Prior art keywords
- control
- decentralization
- brake
- liquid level
- depth
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
Abstract
The invention discloses a kind of automatic pay-off control system of swabbing operation and control method, it is related to oil field equipment and facility technology field, including the System Control Center with touch all-in-one, pumping tensometer, pumping encoder and handheld manipulator are connected by A/D input modules, high speed counting module and digital signal input module with the input communication that System Control Center communicates respectively；The output end of System Control Center is connected by the rotational pulse signal of collection analysis lowering device lower sheave and the tension force of hawser with reducing gear and alarm control and realizes that oil well rig is transferred automatically by central control unit respectively by D/A output modules and digital output module.
Description
Technical field
The invention belongs to oil field equipment and facility technology field, and in particular to a kind of automatic pay-off control system of swabbing operation
And control method.
Background technology
Traditional pumping fluid-discharge method is used as power source using workover rig or tractor hoist, passes through the pumping wound on roller
Steel wire rope, drive swab in pit shaft to pump, realize swabbing operation.Operating personnel manually operate to brake with brake lever
To realize the decentralization of pumping instrument, pumping depth and dynamic oil level then judge by the experience of operator, automaticity
Low, inconvenient for operation, depth error is big, to keep at the moment concentrating, the working strength of operating worker is big；Manual operation is to behaviour
It is higher to make the level requirement of the technology of personnel, if operating personnel's lack of skill, swab decentralization speed occurs in operation process
Degree grasps that bad, submergence is too deep etc. causes swab load excessive, is easily caused steel wire rope and beats the construction qualities such as torsion, job-hopping, fracture of wire
Accident, also jeopardize the safety of the person and equipment.
In the prior art, such as Publication No. CN101078338A, the time of disclosure is on November 28th, 2007, entitled " one
The Chinese invention patent document of kind of automatic intermittent mine mouth oil pumping method and its device ", disclose a kind of well head oil pumping method and its
Device, device mainly includes various sensors and steel wire is crossed fixed pulley and is connected with piston；Method is automatic control system and device
Coordinate, have main steps that circuit control panel judges whether braking time reaches and sets the time：If being not reaching to, brake continues to make
It is dynamic, otherwise release braking, descent of piston；When gravity sensor signal intensity, control board is to descent of piston depth-set
Depth is compared, while whether is crossed electromagnetic sensor to strong magnet A and judged：If as a result it is less than and is passed through without strong magnet A
Cross；Circuit control panel is by downstream rate compared with setting speed：If being as a result greater than, decelerating through motor is descending, otherwise continues traveling downwardly；
Electromagnetic sensor is crossed until descent of piston depth is more than set depth or strong magnet A, brake, is carried piston on motor and is stopped
Stay in above oil pipe after reaching braking time, then start next round pumping and so circulate.
For another example Publication No. CN102305059A, time of disclosure are on 01 04th, 2012, a kind of entitled " oil-well rig
Automatic control system and its control method " Chinese invention patent document, disclose and being automatically controlled for a kind of oil-well rig
System and its control method, the control system include a main website and multiple slave stations；PLC is whole control in integral cabinet
The mud volume of system main website processed, its Analog input mModule collection rectifier cabinet DC current and mud pit, digital quantity input mould
Block gathers each executing agency's running status and alarm signal, and digital output module output executing mechanism start stop signal or alarm are defeated
Go out signal；Driller house remote control unit is a slave station of whole control system, and its Analog input mModule gathers winch hand
Handle position, rotating disk handle position, hook position, suspending weight, tongs moment of torsion, winch lubrication pressure, rotating disk lubricating oil pressure, source of the gas pressure
Power, disc brake safety tongs pressure, the left and right working clamp pressure of disc brake, disc brake hydraulic station pressure, standpipe pressure, return slurry flow；Digital quantity
Input module gathers each executing agency's running status and alarm signal, digital output module output executing mechanism start stop signal or
Alarm output signal；Winch, automatic bit feed, slush pump, the frequency converter of rotating disk are respectively a slave station of control system, and main website is read
The related data of each slave station is taken, and outputs control signals to each slave station；A slave station of the generating set as whole control system,
Each generating set is equipped with an integrative instrument, and each instrument distributes a different address, and main website is read with the communication of each integrative instrument
Take the related data of each generating set；Driller house is equipped with two HMI operator control panels and carries out human-computer dialogue for operator, inputs each calibration
Parameter and operation arrange parameter, and control mode is selected according to technological requirement；Integral cabinet and remote control unit are respectively equipped with one
PC monitors handling situations for related personnel, and carries out fault diagnosis, data storage and printing；In integral cabinet PLC and
Remote control unit is equipped with a set of redundant system in driller house.
But in above-mentioned prior art, implementation is relative complex, and its purpose is nor in order to solve
The problem of automatic decentralization control of oil well.
The content of the invention
It is an object of the invention to provide a kind of rotational pulse signal by collection analysis lowering device lower sheave and
The tension force of hawser simultaneously realizes the control system and control method that oil well rig transfers automatically by central control unit.
A kind of automatic pay-off control system of swabbing operation, it is characterised in that：Including the system control with touch all-in-one
Center processed, pumping tensometer, pumping encoder and handheld manipulator pass through A/D input modules, high speed counting module sum respectively
Word signal input module is connected with the input communication that System Control Center communicates；The output end of System Control Center passes through D/A
Output module and digital output module are connected with reducing gear and alarm control respectively.
The System Control Center is the PLC with control program.
Manual/auto switch key is carried on the touch all-in-one and handheld manipulator.
The reducing gear includes the brake gear controlled by brake gas circuit, and the brake gas circuit is provided with fast-discharge valve
Control cylinder.
Its dynamical system also includes the clutch controlled by clutch for clutch control gas circuit, is arranged in series in the clutch for clutch control gas circuit
There is a normally open solenoid valve for being used to realize loose clutch.
A kind of swabbing operation descends place control method automatically, it is characterised in that comprises the following steps：
Initialization step, operating personnel confirm type by touch all-in-one or handheld manipulator selection, complete control system
The initialization of corresponding type, initialization content include the velocity amplitude Vs of default constant speed decentralization；
Transfer rate-determining steps, decentralization rate-determining steps are included under depth and speed control, automatic in cable tension control and liquid level
Put control；
The depth and speed control, i.e., after decentralization action starts, pumping encoder collects the photoelectricity being arranged on lower sheave
The pulse signal of encoder output is simultaneously passed System Control Center back by high speed counting module and handled, and calculates and is transferred
Real-time deep H and speed V, the velocity amplitude Vs transferred by comparing real-time speed V and constant speed, work as V>Vs System Control Centers
Reducing gear is controlled to be slowed down by D/A output modules；
The cable tension control, i.e., after decentralization action starts, pumping tensometer is collected the tension force being arranged on top sheave and passed
The tension force for the decentralization hawser that sensor detects in real time is simultaneously passed System Control Center back by A/D input modules and handled, and works as inspection
Measure tension force to undergo mutation, be judged as transferring to makes under roller stopping up to liquid level, System Control Center control dynamical system brake
Put；
Automatic decentralization control in the liquid level, i.e., judge to transfer to up to liquid level and control dynamical system to stop in System Control Center
Car make roller stop decentralization when, by operating personnel release brake continue to transfer, System Control Center call liquid level in it is automatic under
Put algorithm control continue to transfer, when transfer to liquid level it is lower 300 meters when System Control Center control dynamical system brake stop roller
Only transfer and pass through digital output module and control alarm equipment alarm, prompt operating personnel to transfer and complete.
The depth and the control of speed control and cable tension are carried out simultaneously before page location is transferred to.
The depth and speed control, work as V>Vs System Control Centers control reducing gear to carry out by D/A output modules
Slow down, and the brake gas circuit of the reducing gear exports a stable air pressure and the real-time speed V of decentralization is transferred equal to constant speed
Velocity amplitude Vs.
The cable tension control, detection real-time tension value Fs and theoretical tension force FL ratio R=Fs/FL, works as R>When 0.7,
System is thought for normal decentralization state；Work as R<When 0.3, system thinks to reach liquid level, system output brake signal, controls tractor hoist
Brake；Treat that tension force recovers, R>When 0.8, system output un-brake signal, brake is released；Theoretical tension force FL=F1+ ρ * g*H, its
In, F1 is tension force of the pumping instrument in zero point, and ρ is steel wire rope line density, and g is acceleration of gravity, and H is that the decentralization of pumping instrument is deep
Degree.
Automatic decentralization algorithm in the liquid level is, System Control Center record is transferred to up to depth value during liquid level, together
When continue through photoelectric encoder output pulse signal record hawser decentralization depth value, subtracted and reached with the depth value of decentralization
The difference of depth value during liquid level is the depth of the automatic decentralization in liquid level, when the depth of the automatic decentralization in liquid level is equal to
Self-actuating brake at 300 meters.
Beneficial effects of the present invention are as follows：
First, the automatic pay-off control system of a kind of swabbing operation provided by the invention, pumping tensometer are used to gather lowering device cable
The tension variation data of rope, tension variation data when reaching liquid level by getting are controlled to judge that decentralization state realizes that scene is real-time
System；Pumping encoder is used to gather hawser and issue data, can be calculated the depth of decentralization by the data, touch all-in-one and
Handheld manipulator person easy to operation selects remote auto or on-site manual to control according to demand, and is easy to display record real-time
Data are transferred, alarm can notify operating personnel's state in place in time.
2nd, the automatic pay-off control system of a kind of swabbing operation provided by the invention, PLC is in automation control area
Middle to use maturation, it is easy to realize, strong adaptability；The realization that secure segment operates is easy in manual/auto switching；Control gas circuit main
By brake gas circuit and clutch for clutch control gas circuit, brake gas circuit is primarily implemented under overrun condition, and the work(for slowing down, braking is realized to system
Can, prevent security incident, brake gas circuit is mainly connected in parallel by proportioning valve with normally open solenoid valve by shuttle valve, and system is led to
Internal algorithm is crossed, for the speed of service in decentralization process, state, output current signal, proportioning valve is controlled, realizes the work(of rate controlling
Can, because scene is pneumatic rate controlling, gas, which performs, has larger hysteresis quality, in order to reduce hysteresis, improves control accuracy, is stopping
Increase fast-discharge valve in car gas circuit, accelerate exhaust；For clutch for clutch control gas circuit in original clutch for clutch control gas circuit, series connection one is normally opened
Magnetic valve, realize the function of loose clutch.
3rd, a kind of swabbing operation provided by the invention descends place control method automatically, passes through measurement under automatic lower mode playback
The pulse signal of photoelectric encoder output on lower sheave, system acquisition and processing, calculate the depth of steel wire rope decentralization
Degree and speed, by calculating speed value V compared with the velocity amplitude Vs that the constant speed set is transferred, work as V>Vs, system control execution machine
Structure, slowed down, when speed V, to a stable air pressure, controls the decentralization of roller fast close to Vs, system according to different depth
Substantially constant is spent, pumping instrument will be moved with a more constant speed in well；System passes through on top sheave
Tension sensor, the tension force of steel wire rope is detected in real time, if tension force is undergone mutation, close to steel wire rope in the tension force of zero point, system
Think to reach liquid level, roller is checked, stop transferring, after person's un-brake to be operated, system can call the automatic decentralization in liquid level
Algorithm, continue to run with, when run to liquid level it is lower 300 meters when, roller is checked and alarmed automatically by system, prompt operator can
Instrument is carried above and completes decentralization action, realizes automatic data collection, the function of actual time safety control.
4th, a kind of swabbing operation provided by the invention descends place control method automatically, utilizes cable tension data variation and light
What the pulse signal of photoelectric coder output calculated arrives the position of decentralization state and depth data in real time, accurate by control centre
Realize automatic decentralization control.
Brief description of the drawings
Fig. 1 is a kind of structural representation of preferred scheme of the present invention；
Fig. 2 is a kind of schematic flow sheet of preferred scheme of the present invention；
Fig. 3 is a kind of present invention brake structural representation of preferred scheme of gas circuit；
Fig. 4 is a kind of structural representation of preferred scheme of clutch for clutch control gas circuit of the present invention.
Embodiment
Technical scheme is further illustrated below by several specific embodiments, but it should be recognized that
Technical solution of the present invention includes but is not limited to following examples.
Embodiment 1
Such as Fig. 1, a kind of automatic pay-off control system of swabbing operation, including the System Control Center with touch all-in-one, take out
Tensometer, pumping encoder and handheld manipulator is drawn to input by A/D input modules, high speed counting module and data signal respectively
Module is connected with the input communication that System Control Center communicates；The output end of System Control Center by D/A output modules and
Digital output module is connected with reducing gear and alarm control respectively.
This is a kind of most basic embodiment of control system of the present invention.Pumping tensometer is used to gather lowering device hawser
Tension variation data, tension variation data when reaching liquid level by getting judge that decentralization state realizes scene control in real time
System；Pumping encoder is used to gather hawser and issue data, can be calculated the depth of decentralization by the data, touch all-in-one and
Handheld manipulator person easy to operation selects remote auto or on-site manual to control according to demand, and is easy to display record real-time
Data are transferred, alarm can notify operating personnel's state in place in time.
Embodiment 2
Such as Fig. 1 to Fig. 3, in a kind of automatic pay-off control system of swabbing operation, including the control of the system with touch all-in-one
The heart, pumping tensometer, pumping encoder and handheld manipulator are believed by A/D input modules, high speed counting module and numeral respectively
Number input module is connected with the input communication that System Control Center communicates；The output end of System Control Center is exported by D/A
Module and digital output module are connected with reducing gear and alarm control respectively；The System Control Center is with control journey
The PLC of sequence；Manual/auto switch key is carried on the touch all-in-one and handheld manipulator；The reductor
Structure includes the brake gear controlled by brake gas circuit, and the brake gas circuit is provided with the control cylinder with fast-discharge valve；Its power
System also includes the clutch controlled by clutch for clutch control gas circuit, and being arranged in series one in the clutch for clutch control gas circuit is used to realize
The normally open solenoid valve of loose clutch.
This is a kind of preferred embodiment of control system of the present invention.Pumping tensometer is used to gather lowering device hawser
Tension variation data, tension variation data when reaching liquid level by getting control to judge that decentralization state realizes that scene is real-time；
Pumping encoder issues data for gathering hawser, and the depth of decentralization, touch all-in-one and hand are can be calculated by the data
Hold operator person easy to operation selects remote auto or on-site manual to control according to demand, and is easy under showing record in real time
Data are put, alarm can notify operating personnel's state in place in time；PLC in automation control area use into
Ripe, it is easy to realize, strong adaptability；The realization that secure segment operates is easy in manual/auto switching；Gas circuit is controlled mainly by brake air
Road and clutch for clutch control gas circuit, brake gas circuit are primarily implemented under overrun condition, the function of slowing down, brake are realized to system, is prevented
Generation security incident, brake gas circuit are mainly connected in parallel by proportioning valve with normally open solenoid valve by shuttle valve, and system passes through inside
Algorithm, for the speed of service in decentralization process, state, output current signal, proportioning valve is controlled, realize the function of rate controlling, by
It is pneumatic rate controlling in scene, gas, which performs, has larger hysteresis quality, in order to reduce hysteresis, control accuracy is improved, in brake air
Increase fast-discharge valve in road, accelerate exhaust；Clutch for clutch control gas circuit is in original clutch for clutch control gas circuit, a normally opened electromagnetism of connecting
Valve, realize the function of loose clutch.
Embodiment 3
Such as Fig. 1 to 4, a kind of swabbing operation descends place control method, comprised the following steps automatically：
Initialization step, operating personnel confirm type by touch all-in-one or handheld manipulator selection, complete control system
The initialization of corresponding type, initialization content include the velocity amplitude Vs of default constant speed decentralization；
Transfer rate-determining steps, decentralization rate-determining steps are included under depth and speed control, automatic in cable tension control and liquid level
Put control；
The depth and speed control, i.e., after decentralization action starts, pumping encoder collects the photoelectricity being arranged on lower sheave
The pulse signal of encoder output is simultaneously passed System Control Center back by high speed counting module and handled, and calculates and is transferred
Real-time deep H and speed V, the velocity amplitude Vs transferred by comparing real-time speed V and constant speed, work as V>Vs System Control Centers
Reducing gear is controlled to be slowed down by D/A output modules；
The cable tension control, i.e., after decentralization action starts, pumping tensometer is collected the tension force being arranged on top sheave and passed
The tension force for the decentralization hawser that sensor detects in real time is simultaneously passed System Control Center back by A/D input modules and handled, and works as inspection
Measure tension force to undergo mutation, be judged as transferring to makes under roller stopping up to liquid level, System Control Center control dynamical system brake
Put；
Automatic decentralization control in the liquid level, i.e., judge to transfer to up to liquid level and control dynamical system to stop in System Control Center
Car make roller stop decentralization when, by operating personnel release brake continue to transfer, System Control Center call liquid level in it is automatic under
Put algorithm control continue to transfer, when transfer to liquid level it is lower 300 meters when System Control Center control dynamical system brake stop roller
Only transfer and pass through digital output module and control alarm equipment alarm, prompt operating personnel to transfer and complete.
This is a kind of most basic embodiment of control method of the present invention.It is arranged under automatic lower mode playback by measurement
The pulse signal of photoelectric encoder output on lower sheave, system acquisition and processing, calculate the depth and speed of steel wire rope decentralization
Degree, by calculating speed value V compared with the velocity amplitude Vs that the constant speed set is transferred, work as V>Vs, system control executing agency, enters
Row slows down, when speed V, to a stable air pressure, controls the lowering velocity of roller basic close to Vs, system according to different depth
Constant, pumping instrument will be moved with a more constant speed in well；System is passed by the tension force on top sheave
Sensor, the tension force of steel wire rope is detected in real time, if tension force is undergone mutation, close to steel wire rope in the tension force of zero point, system thinks to reach
To liquid level, roller to be checked, stops transferring, after person's un-brake to be operated, system can call the automatic decentralization algorithm in liquid level, after
Reforwarding row, when run to liquid level it is lower 300 meters when, roller is checked and alarmed automatically by system, prompt operator may lift up
Instrument completes decentralization action, realizes automatic data collection, the function of actual time safety control.
Embodiment 4
Such as Fig. 1 to 4, a kind of swabbing operation descends place control method, comprised the following steps automatically：
Initialization step, operating personnel confirm type by touch all-in-one or handheld manipulator selection, complete control system
The initialization of corresponding type, initialization content include the velocity amplitude Vs of default constant speed decentralization；
Transfer rate-determining steps, decentralization rate-determining steps are included under depth and speed control, automatic in cable tension control and liquid level
Put control；
The depth and speed control, i.e., after decentralization action starts, pumping encoder collects the photoelectricity being arranged on lower sheave
The pulse signal of encoder output is simultaneously passed System Control Center back by high speed counting module and handled, and calculates and is transferred
Real-time deep H and speed V, the velocity amplitude Vs transferred by comparing real-time speed V and constant speed, work as V>Vs System Control Centers
Reducing gear is controlled to be slowed down by D/A output modules；
The cable tension control, i.e., after decentralization action starts, pumping tensometer is collected the tension force being arranged on top sheave and passed
The tension force for the decentralization hawser that sensor detects in real time is simultaneously passed System Control Center back by A/D input modules and handled, and works as inspection
Measure tension force to undergo mutation, be judged as transferring to makes under roller stopping up to liquid level, System Control Center control dynamical system brake
Put；
Automatic decentralization control in the liquid level, i.e., judge to transfer to up to liquid level and control dynamical system to stop in System Control Center
Car make roller stop decentralization when, by operating personnel release brake continue to transfer, System Control Center call liquid level in it is automatic under
Put algorithm control continue to transfer, when transfer to liquid level it is lower 300 meters when System Control Center control dynamical system brake stop roller
Only transfer and pass through digital output module and control alarm equipment alarm, prompt operating personnel to transfer and complete；
The depth and the control of speed control and cable tension are carried out simultaneously before page location is transferred to.
The depth and speed control, work as V>Vs System Control Centers control reducing gear to carry out by D/A output modules
Slow down, and the brake gas circuit of the reducing gear exports a stable air pressure and the real-time speed V of decentralization is transferred equal to constant speed
Velocity amplitude Vs.
The cable tension control, detection real-time tension value FSWith theoretical tension force FLRatio R=FS/FL, work as R>When 0.7,
System is thought for normal decentralization state；Work as R<When 0.3, system thinks to reach liquid level, system output brake signal, controls tractor hoist
Brake；Treat that tension force recovers, R>When 0.8, system output un-brake signal, brake is released；The theoretical tension force FL=F1+ ρ * g*H, its
In, F1It is pumping instrument in the tension force of zero point, ρ is steel wire rope line density, and g is acceleration of gravity, and H is that the decentralization of pumping instrument is deep
Degree.
Automatic decentralization algorithm in the liquid level is, System Control Center record is transferred to up to depth value during liquid level, together
When continue through photoelectric encoder output pulse signal record hawser decentralization depth value, subtracted and reached with the depth value of decentralization
The difference of depth value during liquid level is the depth of the automatic decentralization in liquid level, when the depth of the automatic decentralization in liquid level is equal to
Self-actuating brake at 300 meters.
This is a kind of preferred embodiment of control method of the present invention.It is arranged on ground by measurement under automatic lower mode playback
The pulse signal of photoelectric encoder output on pulley, system acquisition and processing, the depth and speed of steel wire rope decentralization are calculated,
By calculating speed value V compared with the velocity amplitude Vs that the constant speed set is transferred, work as V>Vs, system control executing agency, is subtracted
Speed, when speed V, to a stable air pressure, controls the lowering velocity of roller substantially permanent close to Vs, system according to different depth
Fixed, pumping instrument will be moved with a more constant speed in well；System is sensed by the tension force on top sheave
Device, the tension force of steel wire rope is detected in real time, if tension force is undergone mutation, close to steel wire rope in the tension force of zero point, system thinks to reach
Liquid level, roller is checked, stop transferring, after person's un-brake to be operated, system can call the automatic decentralization algorithm in liquid level, continue
Operation, when run to liquid level it is lower 300 meters when, roller is checked and alarmed automatically by system, prompt operator may lift up work
Tool completes decentralization action, realizes automatic data collection, the function of actual time safety control；Compiled using cable tension data variation and photoelectricity
What the pulse signal of code device output calculated arrives the position of decentralization state and depth data in real time, is accurately realized by control centre
Automatic decentralization control.
Embodiment 5
Such as Fig. 1 to 4, pumping tensometer, pumping encoder even depth measuring instrument are installed in place, connected the line, be powered, select work
Tractor hoist/workover rig of work, is initialized on all-in-one to parameter, sets the resolution ratio of encoder, automatic decentralization control
Table.
Pumping instrument is transferred into well head, on point touching formula all-in-one or on manual operator【Pulse zero setting】Button,
By current well depth zero setting.Then click on【It is manual/auto】Button, select lower mode playback.
After pulse zero setting, system can record tension force of the steel wire rope at the place of zero point, and be monitored in real time in decentralization process
The tension force of steel wire rope.
In a manual mode, system is joined by operations such as display real-time display pumping depth, speed, steel wire rope tensions
Number.And liquid level alarm only is reached in pumping instrument, will not intervention operation person's normal operating.
In automatic lower mode playback, when pumping instrument reaches liquid level, roller can be checked and alarmed by system, stop decentralization.
Operator passes through point touching screen again【Reach liquid level】, or click on manual operator【It is determined that】Key, instrument liquid level is determined,
Un-brake, pumping instrument can call the control algolithm in liquid level, be transferred automatically in liquid level.When run to liquid level it is lower 300 meters when
Wait, roller is checked and alarmed automatically by system, prompts operator to may lift up instrument.
The pulse signal that the photoelectric encoder being arranged on by measuring on lower sheave exports, system acquisition and processing, are calculated
Go out the depth and speed of steel wire rope decentralization.By calculating speed value V compared with the velocity amplitude Vs that the constant speed set is transferred, work as V>Vs
, system control executing agency, slowed down, when speed V is close to Vs, system is according to different depth, to a stable air pressure, control
The lowering velocity substantially constant of roller processed.
The tension force that system passes through the tension sensor on top sheave, in real time detection steel wire rope.If tension force occurs
Mutation, close to steel wire rope in the tension force of zero point, system thinks to reach liquid level, roller checked, and stops decentralization.Person's un-brake to be operated
Afterwards, system can call the automatic decentralization algorithm in liquid level, continue to run with.When run to liquid level it is lower 300 meters when, system from
It is dynamic that roller is checked and alarmed, prompt operator to may lift up instrument.
Due to gas circuit, the time is long during sending down abnormally ascending, and system gives control signal and larger hysteresis quality be present, right
Decentralization control is intervened excessive, causes to slow down too fast, causes derrick to produce and significantly rock.Therefore one is added at control cylinder soon
Valve accelerates exhaust, and during decompression, gas circuit is first vented, reinflated, avoids the hysteresis quality of control.
It is continuously increased with the depth of decentralization, the dynamics of control is necessarily increased, therefore brake weight is associated with into proportioning valve
Air pressure ratio.Steel wire rope is first set in different depth, corresponding minimum brake pressure ratio.Speed is segmented, it is different
Speed interval correspond to different reduction pneumatic pressure ratio examples.Depth is subjected to demarcation interval, different sections, identical speed corresponds to not
Same air pressure ratio.
Control the function of gas circuit：1st, gas circuit is controlled mainly by brake gas circuit and clutch for clutch control gas circuit.Gas circuit of braking is mainly real
Under present overrun condition, the function of slowing down, brake is realized to system, prevents security incident.Gas circuit of braking is mainly by ratio
Valve is connected in parallel with normally open solenoid valve by shuttle valve.System is by internal algorithm, for the speed of service in decentralization process, shape
State, output current signal, proportioning valve is controlled, realize the function of rate controlling.Because scene is pneumatic rate controlling, gas execution exists larger
Hysteresis quality, in order to reduce hysteresis, improve control accuracy, increase fast-discharge valve in gas circuit of brake, accelerate to be vented.
Clutch for clutch control gas circuit：In original clutch for clutch control gas circuit, a normally opened magnetic valve of connecting, loose clutch is realized
Function.
Due to tractor hoist in the course of the work, drive decentralization be present, in order to prevent control system in brake
Afterwards, power is still present, and tractor hoist is suppressed to flame-out situation, and we are provided with clutch for clutch control gas circuit, in the situation of system brake
Under, clutch is come loose.
In automatic decentralization process, the ratio of system real time contrast's steel wire rope actual tension and theoretical tension force.Under normal circumstances,
Actual tension is measured close to theoretical tension force, actual tension by the tension sensor on pumping top sheave.Theoretical tension force
For pumping instrument the line density of steel wire rope and the product of depth are added in the tension force that zero point is
When transferring for the first time, pumping instrument is first put into well head, the pulse zero setting button on point touching screen is clear by current depth
It is zero, system can record tension value F now1, then, system can select automatic, manual decentralization, under selection manually
Put, system has the functions such as overspeed alarming, hypervelocity deceleration.
During automatic decentralization, system is changed by real time contrast's steel wire rope tension.System defines ratio R=FS/FL, wherein
FSMonitored in real time for pumping tension sensor
FLFor theoretical calculation FL=F1+ρ*g*H
F1For pumping instrument zero point tension force
ρ is steel wire rope line density
G is acceleration of gravity, and generally 9.8 meters per the quadratic power second
H is that pumping instrument transfers depth.
Pumping instrument is transferred automatically in well by system rate controlling, when being hampered or contacting the water surface suddenly, pumping instrument
Speed reduce.But steel wire rope releasing speed does not decline, causes steel wire rope looseness.So that steel wire rope tension is reduced.Work as R>
When 0.7, system is thought for normal decentralization state.Only do control lowering velocity.
Work as R<When 0.3, system thinks to reach liquid level, system output brake signal, control tractor hoist brake.Treat that tension force is extensive
It is multiple, R>When 0.8, system output un-brake signal, brake is released.System recalls transfers program automatically under liquid level.When transferring to liquid
When face is lower 300 meters, System Control Center control dynamical system brake makes roller stop transferring and controlled by digital output module
Alarm equipment alarm, operating personnel are prompted to transfer completion automatically.
Pumping instrument controls speed in automatic decentralization process, all through system, realizes that constant speed is stable and transfers.Instantly
Be put into liquid level it is lower 300 meters when, system output brake signal, control brake.Represent that once decentralization terminates.If operator thinks still
So need to continue to transfer, it is necessary to release brake manually, manually decentralization.
Claims (10)
- A kind of 1. automatic pay-off control system of swabbing operation, it is characterised in that：Including the system control with touch all-in-one Center, pumping tensometer, pumping encoder and handheld manipulator pass through A/D input modules, high speed counting module and numeral respectively Signal input module is connected with the input communication that System Control Center communicates；The output end of System Control Center is defeated by D/A Go out module sum word output module respectively with reducing gear and alarm control to be connected.
- A kind of 2. automatic pay-off control system of swabbing operation as claimed in claim 1, it is characterised in that：In the system control The heart is the PLC with control program.
- A kind of 3. automatic pay-off control system of swabbing operation as claimed in claim 1, it is characterised in that：The touch one Manual/auto switch key is carried on machine and handheld manipulator.
- A kind of 4. automatic pay-off control system of swabbing operation as claimed in claim 1, it is characterised in that：The reducing gear bag The brake gear controlled by brake gas circuit is included, the brake gas circuit is provided with the control cylinder with fast-discharge valve.
- A kind of 5. automatic pay-off control system of swabbing operation as claimed in claim 1, it is characterised in that：Its dynamical system is also wrapped The clutch controlled by clutch for clutch control gas circuit is included, one is arranged in series in the clutch for clutch control gas circuit and is used to realize loose clutch Normally open solenoid valve.
- 6. a kind of swabbing operation descends place control method automatically, it is characterised in that comprises the following steps：Initialization step, operating personnel confirm type by touch all-in-one or handheld manipulator selection, complete control system The initialization of corresponding type, initialization content include the velocity amplitude Vs of default constant speed decentralization；Transfer rate-determining steps, decentralization rate-determining steps are included under depth and speed control, automatic in cable tension control and liquid level Put control；The depth and speed control, i.e., after decentralization action starts, pumping encoder collects the photoelectricity being arranged on lower sheave The pulse signal of encoder output is simultaneously passed System Control Center back by high speed counting module and handled, and calculates and is transferred Real-time deep H and speed V, the velocity amplitude Vs transferred by comparing real-time speed V and constant speed, work as V>Vs System Control Centers Reducing gear is controlled to be slowed down by D/A output modules；The cable tension control, i.e., after decentralization action starts, pumping tensometer is collected the tension force being arranged on top sheave and passed The tension force for the decentralization hawser that sensor detects in real time is simultaneously passed System Control Center back by A/D input modules and handled, and works as inspection Measure tension force to undergo mutation, be judged as transferring to makes under roller stopping up to liquid level, System Control Center control dynamical system brake Put；Automatic decentralization control in the liquid level, i.e., judge to transfer to up to liquid level and control dynamical system to stop in System Control Center Car make roller stop decentralization when, by operating personnel release brake continue to transfer, System Control Center call liquid level in it is automatic under Put algorithm control continue to transfer, when transfer to liquid level it is lower 300 meters when System Control Center control dynamical system brake stop roller Only transfer and pass through digital output module and control alarm equipment alarm, prompt operating personnel to transfer and complete.
- 7. a kind of swabbing operation as claimed in claim 6 descends place control method automatically, it is characterised in that：The depth and speed Control and cable tension control are carried out simultaneously before page location is transferred to.
- 8. a kind of swabbing operation as claimed in claim 6 descends place control method automatically, it is characterised in that：The depth and speed Degree control, works as V>Vs System Control Centers control reducing gear to be slowed down by D/A output modules, and the reductor The brake gas circuit of structure, which exports a stable air pressure, makes the real-time speed V of decentralization be equal to the velocity amplitude Vs of constant speed decentralization.
- 9. a kind of swabbing operation as claimed in claim 6 descends place control method automatically, it is characterised in that：The cable tension Control, detection real-time tension value FSWith theoretical tension force FLRatio R=FS/FL, work as R>When 0.7, system is thought for normal decentralization shape State；Work as R<When 0.3, system thinks to reach liquid level, system output brake signal, control tractor hoist brake；Treat that tension force recovers, R> When 0.8, system output un-brake signal, brake is released；The theoretical tension force FL=F1+ ρ * g*H, wherein, F1It is pumping instrument zero The tension force of point, ρ is steel wire rope line density, and g is acceleration of gravity, and H is that pumping instrument transfers depth.
- 10. a kind of swabbing operation as claimed in claim 6 descends place control method automatically, it is characterised in that：In the liquid level Automatic decentralization algorithm is that System Control Center record is transferred to up to depth value during liquid level, while continues through photoelectric encoder The depth value of the decentralization of the pulse signal record hawser of output, the difference up to depth value during liquid level is subtracted with the depth value of decentralization The depth of automatic decentralization as in liquid level, the self-actuating brake when the depth of the automatic decentralization in liquid level is equal to 300 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710795639.7A CN107503732A (en) | 2017-09-06 | 2017-09-06 | A kind of automatic pay-off control system of swabbing operation and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710795639.7A CN107503732A (en) | 2017-09-06 | 2017-09-06 | A kind of automatic pay-off control system of swabbing operation and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107503732A true CN107503732A (en) | 2017-12-22 |
Family
ID=60695990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710795639.7A Pending CN107503732A (en) | 2017-09-06 | 2017-09-06 | A kind of automatic pay-off control system of swabbing operation and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107503732A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578499A (en) * | 2019-08-19 | 2019-12-17 | 青岛北海俊惠电子仪表有限公司 | Hydraulic suction machine |
| CN111075431A (en) * | 2020-01-09 | 2020-04-28 | 西安电子科技大学 | Test oil and gas parameter recorder, and operation state mode identification method and system |
| CN111119805A (en) * | 2020-01-03 | 2020-05-08 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Automatic oil well swabbing method, device and system |
| CN112429611A (en) * | 2020-11-19 | 2021-03-02 | 北京软通智慧城市科技有限公司 | Elevator maintenance method, system, electronic device and storage medium |
| CN113106607A (en) * | 2021-03-29 | 2021-07-13 | 南京玻璃纤维研究设计院有限公司 | Multilayer sheet yarn tension pneumatic control system and method |
| CN114673491A (en) * | 2022-03-09 | 2022-06-28 | 西安聚盛石油科技有限公司 | Method for judging and automatically processing resistance and card encountering of swabbing system |
| CN114687731A (en) * | 2022-04-01 | 2022-07-01 | 西安聚盛石油科技有限公司 | Method for automatically detecting leakage |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020144821A1 (en) * | 2001-04-06 | 2002-10-10 | Rice Timothy F. | Apparatus and system control fot the removal of fluids and gas from a well |
| CN201934090U (en) * | 2010-12-29 | 2011-08-17 | 廊坊开发区新赛浦石油设备有限公司 | Intelligent control system of hydraulic logging winch |
| CN103276478A (en) * | 2013-06-04 | 2013-09-04 | 时光科技有限公司 | PLC (programmable logic control)-free servo control system for suspended flyer roving frame and method for operating PLC-free servo control system |
| CN103382969A (en) * | 2013-07-01 | 2013-11-06 | 中国人民解放军装甲兵工程学院 | Pneumatic automatic operating device for vehicle clutch |
| CN104532728A (en) * | 2014-12-25 | 2015-04-22 | 浙江美通筑路机械股份有限公司 | Hot air type pavement maintenance vehicle control device with wireless control function |
| CN105271037A (en) * | 2015-11-03 | 2016-01-27 | 中国石油集团川庆钻探工程有限公司 | Roller safety control system |
-
2017
- 2017-09-06 CN CN201710795639.7A patent/CN107503732A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020144821A1 (en) * | 2001-04-06 | 2002-10-10 | Rice Timothy F. | Apparatus and system control fot the removal of fluids and gas from a well |
| CN201934090U (en) * | 2010-12-29 | 2011-08-17 | 廊坊开发区新赛浦石油设备有限公司 | Intelligent control system of hydraulic logging winch |
| CN103276478A (en) * | 2013-06-04 | 2013-09-04 | 时光科技有限公司 | PLC (programmable logic control)-free servo control system for suspended flyer roving frame and method for operating PLC-free servo control system |
| CN103382969A (en) * | 2013-07-01 | 2013-11-06 | 中国人民解放军装甲兵工程学院 | Pneumatic automatic operating device for vehicle clutch |
| CN104532728A (en) * | 2014-12-25 | 2015-04-22 | 浙江美通筑路机械股份有限公司 | Hot air type pavement maintenance vehicle control device with wireless control function |
| CN105271037A (en) * | 2015-11-03 | 2016-01-27 | 中国石油集团川庆钻探工程有限公司 | Roller safety control system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578499A (en) * | 2019-08-19 | 2019-12-17 | 青岛北海俊惠电子仪表有限公司 | Hydraulic suction machine |
| CN111119805A (en) * | 2020-01-03 | 2020-05-08 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Automatic oil well swabbing method, device and system |
| CN111119805B (en) * | 2020-01-03 | 2023-08-18 | 中国石油天然气集团有限公司 | Automatic pumping method, device and system for oil well |
| CN111075431A (en) * | 2020-01-09 | 2020-04-28 | 西安电子科技大学 | Test oil and gas parameter recorder, and operation state mode identification method and system |
| CN112429611A (en) * | 2020-11-19 | 2021-03-02 | 北京软通智慧城市科技有限公司 | Elevator maintenance method, system, electronic device and storage medium |
| CN113106607A (en) * | 2021-03-29 | 2021-07-13 | 南京玻璃纤维研究设计院有限公司 | Multilayer sheet yarn tension pneumatic control system and method |
| CN114673491A (en) * | 2022-03-09 | 2022-06-28 | 西安聚盛石油科技有限公司 | Method for judging and automatically processing resistance and card encountering of swabbing system |
| CN114687731A (en) * | 2022-04-01 | 2022-07-01 | 西安聚盛石油科技有限公司 | Method for automatically detecting leakage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107503732A (en) | A kind of automatic pay-off control system of swabbing operation and control method | |
| CN104909234B (en) | To the method and apparatus of the working condition detection of vertical transmission equipment mechanical brake | |
| CN102009890B (en) | Detector for absolute position of elevator lift car | |
| CN105366455B (en) | Multi-rope cooperative control system testbed of ultradeep mine hoist | |
| CN103407920B (en) | A kind of intelligent deep hole rope winch being driven by variable-frequency motor | |
| CN209009895U (en) | A kind of arrangement for detecting that elevator wire rope skids | |
| CN101670965A (en) | Method for measuring elevator equilibrium coefficient | |
| CN106976769B (en) | A kind of building hoist automatic leveling method | |
| CN102785978A (en) | Method for real-time monitoring and control protection of hoisting rope of hoisting equipment | |
| CN105151941B (en) | A kind of elevator governor lifting force test device and method | |
| CN102942088A (en) | Detection device for steel wire rope tension of friction type hoister | |
| CN109179239A (en) | A kind of hydraulic logging winch system | |
| CN202968487U (en) | Steel wire rope tension detection system for hydraulic decoking of delayed coking device | |
| CN102128023A (en) | Comprehensive tripping monitoring operating system | |
| CN111119805B (en) | Automatic pumping method, device and system for oil well | |
| JPH11199153A (en) | Diagnostic device for elevator | |
| CN105271037A (en) | Roller safety control system | |
| CN206457132U (en) | A kind of elevator faults rescue system of automatic alarm | |
| CN206645745U (en) | A kind of drilling drawworks controller | |
| CN211974944U (en) | Automatic swabbing system of oil well | |
| CN206523780U (en) | A kind of mining elevator detecting system | |
| CN202625543U (en) | Intelligent elevator rope slacking protection device | |
| CN202090863U (en) | Belt brake automatic drill feeder | |
| CN109292632B (en) | Working method of multi-machine intelligent crane | |
| CN103663225B (en) | The protection system of misfunctioning of brake and hoisting crane |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171222 |