CN208473852U - A kind of oil well tracer chemicals dosing plant - Google Patents
A kind of oil well tracer chemicals dosing plant Download PDFInfo
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- CN208473852U CN208473852U CN201820867588.4U CN201820867588U CN208473852U CN 208473852 U CN208473852 U CN 208473852U CN 201820867588 U CN201820867588 U CN 201820867588U CN 208473852 U CN208473852 U CN 208473852U
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Abstract
The utility model provides a kind of oil well tracer chemicals dosing plant, including water injection well, waterflood-transmission line, detector, regulating valve and controller, the well head of waterflood-transmission line and water injection well communicates, and water filling port and the medicine-pouring port for drug to be added into water are provided on waterflood-transmission line, regulating valve is located on medicine-pouring port, and the well head of water injection well is arranged in detector.Oil well tracer chemicals dosing plant provided by the utility model controls the tracer concentration being added in water injection well using the mode of " intelligence adjusts dosage again for detection-", first detect the tracer concentration of addition, it will test value again and be compared operation with the drug concentration value of setting, not only control continuous dosing concentration, operating cost is reduced again, is conducive to the Technique Popularizing application of oil well connection tracer chemicals dosing plant.
Description
Technical field
The utility model relates to oil field tracer field, in particular to a kind of oil well tracer chemicals dosing plant.
Background technique
With the development of oil exploitation technology, oil field tracer technique is widely used, and is added in oil field water well
Dedicated tracer, detection plane, longitudinal direction, the seepage flow situation in layer between corresponding well can carry out parameter the wells such as oil reservoir, geology
Analysis, is conducive to the exploitation and planning in oil field.Tracer detection technique, which refers to from injection well, injects tracer, then presses centainly
Sampling regulation output well around samples, and monitors its output situation, analyzes sample, obtains tracer production curve, so
After be fitted, reflect the connection situation of oil-water well during waterflooding extraction, grasp the injection direction of propulsion of water, displacement velocity,
Sweep area and reservoir heterogeneity and remaining oil saturation distribution etc., to instruct the design and oil field development of oil mining
The adjustment in later period.
Traditional oil well connection tracer filling is concentration of the test agents in pipeline again after dosing, and the process of dosing
It is controlled using armstrong's patent regulating valve, data can be will test after the concentration that detection device detects medicament and be shown to operation
Personnel, it is that pharmaceutical quantities are excessive or pharmaceutical quantities are very few that operator, which is compared judgement with predetermined value further according to the concentration of detection,.
If the pharmaceutical quantities being added are excessive, operator can by virtue of experience manually be turned down regulating valve, if the pharmaceutical quantities being added
Very few, then operator manually can hold regulating valve by previous experiences larger.
Due to manually adjusting heavy workload, and it is not easily controlled injection rate, does not adapt to wanting for the continuous spike of oil well
It asks, is not easy to promote.Therefore it provides a kind of tracer chemicals dosing plant that pharmaceutical quantities are added that can automatically control is as art technology
Personnel's urgent problem.
Utility model content
The utility model provides a kind of oil well tracer chemicals dosing plant, can detect drug concentration be added, and root automatically
The pharmaceutical quantities of subsequent addition are controlled according to testing result, it is simple accurate, convenient for promoting.
To achieve the goals above, the utility model embodiment provides a kind of oil well tracer chemicals dosing plant, including water injection well,
The well head of waterflood-transmission line, detector, regulating valve and controller, waterflood-transmission line and water injection well communicates, and is provided on waterflood-transmission line
Water filling port and medicine-pouring port for drug to be added into water, regulating valve is located on medicine-pouring port, and the well of water injection well is arranged in detector
Mouthful, for detecting the drug concentration in water, detector and regulating valve are electrically connected with the controller, and controller is used for according to detector
The drug concentration detected controls to adjust the open and-shut mode of valve.
As a kind of optional embodiment of the utility model embodiment, medicine-pouring port is located at the upstream of water filling port.
As a kind of optional embodiment of the utility model embodiment, water filling port is located at the upstream of medicine-pouring port.
As a kind of optional embodiment of the utility model embodiment, it is additionally provided with mixing agitator on waterflood-transmission line,
Mixing agitator is for stirring evenly mixed water with drug.
As a kind of optional embodiment of the utility model embodiment, the downstream of mixing agitator is arranged in detector.
As a kind of optional embodiment of the utility model embodiment, medicine-pouring port and reactor solution storage container phase
Even.
As a kind of optional embodiment of the utility model embodiment, water filling port is connected with make-up water pump.
As a kind of optional embodiment of the utility model embodiment, detector is that tracer detector or concentration pass
Sensor.
As a kind of optional embodiment of the utility model embodiment, regulating valve is electric control valve, and regulating valve
Controlled end is electrically connected with the controller, and the aperture of regulating valve is adjustable.
As a kind of optional embodiment of the utility model embodiment, controller is PID adjusting apparatus.
The utility model provides a kind of oil well tracer chemicals dosing plant, including water injection well, waterflood-transmission line, detector, regulating valve
And controller, the well head of waterflood-transmission line and water injection well communicate, and water filling port are provided on waterflood-transmission line and for being added into water
The medicine-pouring port of drug, regulating valve are located on medicine-pouring port, and the well head of water injection well is arranged in detector, dense for detecting the drug in water
Degree, detector and regulating valve are electrically connected with the controller, and the drug concentration control that controller is used to be arrived according to detector test is adjusted
Save the open and-shut mode of valve.Tracer chemicals dosing plant provided in this embodiment when in use, first passes through detector test and is injected into
The concentration of tracer in water, and the collected concentration information of institute is converted into electric signal and passes to controller, controller again will
If the information received and preset concentration value perhaps certain concentration range be compared exceed or be less than it is default
Value, controller will send a control signal to regulating valve, control motor-driven valve and turn down or open greatly, and can be according to exceeding
Preset value size calculate motor-driven valve needs opening value, control motor-driven valve reach certain angle, motor-driven valve meeting later
Valve position information is fed back into controller, oil well tracer chemicals dosing plant provided by the utility model is using " intelligence adjusting adds again for detection-
The mode of dose " controls the tracer concentration being added in water injection well, first detects the tracer concentration of addition, then will test
Value is compared operation with the drug concentration value of setting, not only controls continuous dosing concentration, and reduce operating cost, favorably
In the Technique Popularizing application of oil well connection tracer chemicals dosing plant.
The construction of the utility model and its other purpose of utility model and beneficial effect will be in conjunction with the accompanying drawings
Description of preferred embodiments and it is more obvious and easy to understand.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is that inter-well tracer test note adopts schematic diagram；
Fig. 2 is single tracer production curve schematic diagram；
Fig. 3 is the oil well tracer technique structural schematic diagram that the utility model embodiment one provides；
Fig. 4 is the structure diagram for the oil well tracer chemicals dosing plant that the utility model embodiment one provides；
Fig. 5 is the link position schematic diagram for the oil well tracer chemicals dosing plant that the utility model embodiment one provides；
Fig. 6 is the link position schematic diagram for the oil well tracer chemicals dosing plant that the utility model embodiment two provides.
Description of symbols:
101: water injection well；
102: monitoring well；
103: waterflood-transmission line；
104: stratum filtration channel；
111: the first production trees；
112: the first tubing strings；
121: the second tubing strings；
122: the second production trees；
131: water filling port；
132: medicine-pouring port；
200: tracer chemicals dosing plant；
201: detector；
202: regulating valve；
203: controller；
204: make-up water pump；
205: water flow sensor；
206: water flow throttle valve；
207: mixing agitator；
208: reactor solution storage container；
231: storage unit；
232: display unit.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Scene embodiment
The embodiment of the present application can be applied in oil-field flooding tracer technique, it should be noted that oil-field flooding tracer skill
Art is one of produced on-site measuring technology, and tracer inter-well test technology is that a kind of water-soluble tracer is injected in water injection well 101
Agent, water sampling (as shown in FIG. 1, FIG. 1 is inter-well tracer test notes to adopt schematic diagram), analyzes in institute's water sampling in periphery monitoring well 102
The concentration of tracer, and tracer production curve is drawn, tracer production curve is analyzed using tracer interpretation software,
It is assured that the heterogeneous situation of oil reservoir.
Tracer, which refers to, to be flowed with fluid, indicate the presence of fluid, the chemical agent of the direction of motion and movement velocity.Make
It is to qualitatively describe oil reservoir with the purpose of tracer, main application is as follows: the direction of propulsion and speed of description injection fluid
The reason of degree, evaluation volume is dialled and efficiency, explains fingering in injection fluid layer, description flowing is blocked, and discovery directional flow becomes
Gesture describes the nonuniformity feature of oil reservoir, measures the speed of related movement in layer between different injection fluids, identifies dual or multi sky
Gap/permeability oil reservoir and its relative volume coefficient, determine remaining oil saturation and distribution, design and execute secondary and three times
Oil recovery project.
Tracer charges into producing well, tracer along high permeability formation or macropore with injection water first after water injection well injection
Production curve can gradually appear peak value, simultaneously because the spread and note of reservoir parameter adopt dynamic difference, the shape of curve
It will be different.Typical tracer production curve is as shown in Figure 2.The main peak period in the past after, it is hypertonic due to secondary level-one
The effect of band and normal osmosis position will continue to output tracer, after the past all peak periods, tracer output concentration
It is basically stable near relatively lower a certain concentration, and long period of time can be continued, with the extension of time, showing
The rate of extraction of track agent can also gradually increase.When injection water does not outflow, oil reservoir gets over homogeneous, and affusion utilizing ratio is higher, then
See that the tracer time is more late.Conversely, seeing tracer in the short time, illustrate to inject water along high permeability formation channelling, reservoir heterogeneity
By force, development effectiveness is poor.
Current tracer injection is mainly injected by tank car into water injection well, but needs to put into manpower and time in this way
Injection work is carried out, and the tracer being added cannot be guaranteed the uniform of concentration, easily cause the error of measurement, generally, tracer
The injection rate of agent, depending on being tracked the maximum volume of fluid and sensitivity and the stratum background value of analysis instrument in reservoir
Influence.Therefore, the injection rate of tracer needs strict control, however traditional injection rate manually adjusts mode and its not
Convenient, the application is provided with a kind of oil well tracer chemicals dosing plant that injection rate is automatically controlled according to the implantation concentration of tracer,
It should be noted that embodiments herein is not only applicable to oilfield technology, it can be also used for other tracer dispensing technologies
In.Just the specific embodiment of the application is described further below:
Embodiment one
Fig. 3 is the oil well tracer technique structural schematic diagram that the utility model embodiment one provides, and is generally shown in flushing
In track technology, need that chemicals dosing plant is arranged at the well head of water injection well, therefore the oil well tracer chemicals dosing plant of the application is also provided with
On the outside of the well head of water injection well as shown in Figure 3, specifically, the well head of water injection well 101 is communicated with waterflood-transmission line 103, tracer adds
Medicine device 200 is generally located on waterflood-transmission line 103, and the medicament being added passes through water injection well in company with the water of injection together
The first production tree 111 being arranged on 101 enters in the first tubing string 112, then flows through stratum filtration by the first tubing string 112 and lead to
Road 104 enters in the second tubing string 121 of monitoring well 102, then the second production tree 122 outflow being arranged from 102 top of monitoring well,
And exit is provided with the detection device of detection tracer content, then detect by the detection device and show in flowed out liquid
The content of track agent, and oil recovery project is instructed by analyzing.
Fig. 4 is the structure diagram for the oil well tracer chemicals dosing plant that the utility model embodiment one provides, and Fig. 5 is that this is practical new
The link position schematic diagram for the oil well tracer chemicals dosing plant that type embodiment one provides, it is as illustrated in figures 4-5, provided in this embodiment to show
Track chemicals dosing plant 200, including water injection well 101, waterflood-transmission line 103, detector 201, regulating valve 202 and controller 203, water injection pipe
The well head of line 103 and water injection well 101 communicates, and water filling port 131 is provided on waterflood-transmission line 103 and for drug to be added into water
Medicine-pouring port 132, regulating valve 202 is located on medicine-pouring port 132, and the well head of water injection well 101 is arranged in detector 201, for detecting
Drug concentration in water, detector 201 and regulating valve 202 are electrically connected with controller 203, and controller 203 is used for according to detection
The drug concentration that instrument 201 detects controls to adjust the open and-shut mode of valve 202.
Tracer chemicals dosing plant 200 provided in this embodiment when in use, first passes through the detection of detector 201 and is injected into water
In tracer concentration, and the collected concentration information of institute is converted into electric signal and passes to controller 203, controller 203
If again by the information received and preset concentration value perhaps certain concentration range be compared exceed or be less than it is pre-
If value, controller 203 will send a control signal to regulating valve 202, and control motor-driven valve 202 is turned down or opened greatly, and
The opening value of the needs of motor-driven valve 202 can be calculated according to the size of the preset value exceeded, control motor-driven valve 202 reaches certain
After angle, valve position information can be fed back to controller 203 by motor-driven valve 202, and above controller 203 generally further includes storage unit
231 and display unit 232, so controller 203 can in injection well tracer concentration variation and valve seat opening value information
It is recorded, and the valve position information of record is shown on display unit 232, referred to for staff, controller 203 may be used also
With in injection well tracer concentration variation and the data such as valve seat opening value carry out Self-tuning System, to go out liquid concentration to well head
It is accurately controlled, tracer connection well group is made to reach regulation design requirement, it is ensured that well group connection effectively identification.The utility model mentions
The oil well tracer chemicals dosing plant of confession is dense to the tracer being added in water injection well using the mode of " intelligence adjusts dosage again for detection-"
Degree is controlled, and first detects the tracer concentration of addition, then will test value and be compared operation with the drug concentration value of setting, no
Continuous dosing concentration is only controlled, and reduces operating cost, the Technique Popularizing for being conducive to oil well connection tracer chemicals dosing plant is answered
With.
In order to meet above-mentioned requirements to reduce uncertainty, the needs of controller 203 are that the closed loop based on feedback concept is automatic
The element of control technology, feedback theory includes three parts: measuring, compares and executes.Measure the reality of crucially controlled variable
Actual value, with this deviation come the response of correcting system, executes compared with desired value and adjusts control.Engineering in practice, application
Most commonly used adjuster control law is ratio, integral, differential control, and abbreviation PID control, also known as PID are adjusted.
One control loop includes three parts: measurement result that the sensor of system obtains, controller make decision and
It is reacted by an output equipment.Controller obtains measurement result from sensor, then subtracts measurement with demand result
As a result error is obtained.As soon as then being calculated with error to the correction value of system as input results, such system
Error can be eliminated from its output result.PID controller (proportional-integral derivative controller) is one in Industry Control
The common feedback loop component in, is made of proportional unit P, integral unit I and differentiation element D.The basis of PID control is
Ratio control；Integration control can eliminate steady-state error, but can increase overshoot；Differential control can accelerate Great inertia system response speed
Degree and decrease overshoot trend.PID controller is a common feedback loop component in Industry Control Application.This control
Device is compared the data being collected into and a reference value, and then this difference for calculating new input value, this is new
The purpose of input value be that the data of system can be allowed to reach or be maintained at reference value.Not with other simple control operations
Together, PID controller can adjust input value according to the occurrence rate of historical data and difference, system can be made more quasi- in this way
Really, more stable.It can be proved by the method for mathematics, cause system to have steady state error or process repeatedly in other control methods
In the case where, a PID feedback loop can but keep the stabilization of system.
PID is most common a kind of control mode in industrial production, and PID regulation meter is also most common in Industry Control
One of instrument, PID are applicable to the system for carrying out high-acruracy survey control, can be best out according to controlled device auto computing
Pid control parameter.In industrial processes, the state-variables such as the temperature of process units, pressure, flow, liquid level are often required to
Ask maintain it is certain numerically or change according to certain rules, to meet the requirement of production technology.PID controller is basis
PID control principle carries out bias adjustment to entire control system, so that it is predetermined to require the actual value of controlled variable and technique
Value is consistent.Different control laws is suitable for different production processes, it is necessary to reasonably select corresponding control law, otherwise PID
Expected control effect will be not achieved in controller.
Based on above-mentioned analysis, controller 203 is PID adjusting apparatus in the present embodiment, for obtaining measurement knot from detector 201
Then fruit subtracts measurement result with demand result to obtain error.Then a correction value to system is calculated with error
As input results, the i.e. opening value of regulating valve 202, such system can eliminate error from its output result, reach
To the purpose accurately controlled.
In general, the relative position of water filling port 131 and medicine-pouring port 132 on waterflood-transmission line 103 can have different choosings
It selects, is mainly determined according to the property in tracer.
Generally, tracer can classify according to different standards.Classify by indicated fluid, gas tracer can be divided into
And liquid tracer, wherein liquid tracer can be divided into water tracer and oily tracer again；Classify by the distribution in grease phase,
Oil-soluble tracer, water-soluble tracer and grease distribution tracer can be divided into；Classify by concentration analysis, radioactivity can be divided into and shown
Two class of track agent and chemical tracer.In general, chemical tracer is one of the important means of oil reservoir research, it is in research oil reservoir
Connectivity, reservoir properties, fault sealing property, water filling corresponding relationship and injection water fltting speed etc. are square and have important work
With.
For the tracer in soluble easily in water, the upstream that medicine-pouring port 132 is arranged in water filling port 131 can choose, from note
The tracer liquid that medicine mouth 132 injects can be flowed into water injection well along waterflood-transmission line 103, and the flow of medicine-pouring port 132 is general
The interference that not will receive the flow velocity at water filling port 131 is easy to detect and control, as shown in figure 5, in the present embodiment one, medicine-pouring port
132 are located at the upstream of water filling port 131.
Optionally, water filling port 131 is for connecting water injection equipment.
As a kind of optional embodiment of the utility model embodiment, mixing is additionally provided on waterflood-transmission line 103
Device 207, mixing agitator 207 is for stirring evenly mixed water with drug, to improve in entire oil-water well tracer process
In to the detection accuracy of tracer.
In order to prevent when the concentration of tracer of the detector 201 in detection injection water, tracer does not mix also in water
Uniformly, as a kind of optional embodiment of the utility model embodiment, instrument 201 can be will test and be arranged in mixing agitator
207 downstream, more accurately to detect tracer concentration.
As a kind of optional embodiment of the utility model embodiment, medicine-pouring port 132 is for injecting tracer, regulating valve
202 are arranged at medicine-pouring port 132, and regulating valve 202 controls the opening size of itself according to the information that PID adjusting apparatus indicates, thus
Control the concentration of the tracer in injection water.
As a kind of optional embodiment of the utility model embodiment, detector 201 can be tracer detector,
It can be concentration sensor, as long as the concentration for the tracer being added to the water can be detected.
In order to replace manually adjusting, a kind of mode of full-automatic regulation is realized, in the present embodiment, regulating valve 202 is electronic
Regulating valve, and the controlled end of regulating valve 202 is electrically connected with controller 203, the aperture of regulating valve 202 is adjustable.
It is generally provided with alarm on PID adjusting apparatus, for issuing alarm signal, alarm side when device fails
Formula is the measured value upper limit, lower limit and deviation alarm, when detector 201 is continuously detected the excessive concentration of tracer or too low
When, PID adjusting apparatus can issue alarm signal, and staff is prompted to carry out equipment fault inspection, to solve the problems, such as early, reduce
Unnecessary loss.
The utility model embodiment provides a kind of oil well tracer chemicals dosing plant, including water injection well, waterflood-transmission line, detector,
The well head of regulating valve and controller, waterflood-transmission line and water injection well communicates, and is provided with water filling port on waterflood-transmission line and is used for water
The middle medicine-pouring port that drug is added, regulating valve are located on medicine-pouring port, and the well head of water injection well is arranged in detector, for detecting in water
Drug concentration, detector and regulating valve are electrically connected with the controller, and controller is used for the drug concentration arrived according to detector test
Control to adjust the open and-shut mode of valve.Tracer chemicals dosing plant provided in this embodiment when in use, first passes through detector test
It is injected into the concentration of the tracer in water, and the collected concentration information of institute is converted into electric signal and passes to controller, is controlled
If device is again by the information received and preset concentration value, perhaps certain concentration range is compared and exceeds or be less than
Preset value, controller will send a control signal to regulating valve, and control motor-driven valve is turned down or opened greatly, and can basis
The size of the preset value exceeded calculates the opening value of motor-driven valve needs, and control motor-driven valve reaches certain angle, electronic later
Valve position information can be fed back to controller by valve, and oil well tracer chemicals dosing plant provided by the utility model is using " intelligence is adjusted again for detection-
The mode of section dosage " controls the tracer concentration being added in water injection well, first detects the tracer concentration of addition, then will
Detected value is compared operation with the drug concentration value of setting, not only controls continuous dosing concentration, and reduce operating cost,
Be conducive to the Technique Popularizing application of oil well connection tracer chemicals dosing plant.
Embodiment two
Fig. 6 is the link position schematic diagram for the oil well tracer chemicals dosing plant that the utility model embodiment two provides, such as Fig. 6 institute
Show, tracer chemicals dosing plant 200 provided in this embodiment, including water injection well 101, waterflood-transmission line 103, detector 201, regulating valve
202 and controller 203, the well head of waterflood-transmission line 103 and water injection well 101 communicates, and is provided with water filling port on waterflood-transmission line 103
131 and the medicine-pouring port 132 for drug to be added into water, regulating valve 202 is located on medicine-pouring port 132, and detector 201, which is arranged, to be infused
The well head of well 101, for detecting the drug concentration in water, detector 201 and regulating valve 202 are electrically connected with controller 203,
The drug concentration that controller 203 is used to be detected according to detector 201 controls to adjust the open and-shut mode of valve 202.
Tracer chemicals dosing plant 200 provided in this embodiment when in use, first passes through the detection of detector 201 and is injected into water
In tracer concentration, and the collected concentration information of institute is converted into electric signal and passes to controller 203, controller 203
If again by the information received and preset concentration value perhaps certain concentration range be compared exceed or be less than it is pre-
If value, controller 203 will send a control signal to regulating valve 202, and control motor-driven valve 202 is turned down or opened greatly, and
The opening value of the needs of motor-driven valve 202 can be calculated according to the size of the preset value exceeded, control motor-driven valve 202 reaches certain
Angle, valve position information can be fed back to controller 203 by motor-driven valve 202 later, and above controller 203 generally further includes storage unit
231 and display unit 232, so controller 203 can in injection well tracer concentration variation and valve seat opening value information
It is recorded, and the valve position information of record is shown on display unit 232, referred to for staff, controller 203 may be used also
With in injection well tracer concentration variation and the data such as valve seat opening value carry out Self-tuning System, to go out liquid concentration to well head
It is accurately controlled, tracer connection well group is made to reach regulation design requirement, it is ensured that well group connection effectively identification.The utility model mentions
The oil well tracer chemicals dosing plant of confession is dense to the tracer being added in water injection well using the mode of " intelligence adjusts dosage again for detection-"
Degree is controlled, and first detects the tracer concentration of addition, then will test value and be compared operation with the drug concentration value of setting, no
Continuous dosing concentration is only controlled, and reduces operating cost, the Technique Popularizing for being conducive to oil well connection tracer chemicals dosing plant is answered
With.
In order to meet above-mentioned requirements to reduce uncertainty, the needs of controller 203 are that the closed loop based on feedback concept is automatic
The element of control technology, feedback theory includes three parts: measuring, compares and executes.Measure the reality of crucially controlled variable
Actual value, with this deviation come the response of correcting system, executes compared with desired value and adjusts control.Engineering in practice, application
Most commonly used adjuster control law is ratio, integral, differential control, and abbreviation PID control, also known as PID are adjusted.
PID controller (proportional-integral derivative controller) is a common feedback loop portion in Industry Control Application
Part is made of proportional unit P, integral unit I and differentiation element D.The basis of PID control is ratio control；Integration control can disappear
Except steady-state error, but overshoot can be can increase；Differential control can accelerate Great inertia system response speed and weaken overshoot trend.
PID controller is a common feedback loop component in Industry Control Application.This controller the data that are collected into and
One reference value is compared, and then this difference for calculating new input value, the purpose of this new input value is can
To allow the data of system to reach or be maintained at reference value.Different with other simple control operations, PID controller can basis
The occurrence rate of historical data and difference adjusts input value, system can be made more accurate in this way, more stable.Number can be passed through
Method proves, other control methods cause system have steady state error or process repeatedly in the case where, a PID/feedback returns
Road can but keep the stabilization of system.
Intelligent PID controller in such a way that fuzzy control theory and traditional PID control combine, have it is high-precision from
Setting function makes control process have the advantages that response is fast, overshoot is small, stable state accuracy is high.
Based on above-mentioned analysis, controller 203 is Intelligent PID controller in the present embodiment, for being surveyed from detector 201
Then amount is as a result, subtract measurement result with demand result to obtain error.Then one is calculated with error to entangle system
For positive value as input results, the i.e. opening value of regulating valve 202, such system can eliminate mistake from its output result
Difference achievees the purpose that accurately to control.
In general, the relative position of water filling port 131 and medicine-pouring port 132 on waterflood-transmission line 103 can have different choosings
It selects, is mainly determined according to the property in tracer.
Generally, tracer can classify according to different standards.Classify by indicated fluid, gas tracer can be divided into
And liquid tracer, wherein liquid tracer can be divided into water tracer and oily tracer again；Classify by the distribution in grease phase,
Oil-soluble tracer, water-soluble tracer and grease distribution tracer can be divided into；Classify by concentration analysis, radioactivity can be divided into and shown
Two class of track agent and chemical tracer.In general, chemical tracer is one of the important means of oil reservoir research, it is in research oil reservoir
Connectivity, reservoir properties, fault sealing property, water filling corresponding relationship and injection water fltting speed etc. are square and have important work
With.
For the tracer being not readily dissolved in water, the downstream that medicine-pouring port 132 is arranged in water filling port 131 can choose, from
The tracer that medicine-pouring port 132 injects can be taken in water injection well 101 from the water that water filling port 131 injects, and prevent medicament retention from infusing
It causes to waste in water pipeline 103, as shown in fig. 6, medicine-pouring port 132 is located at the downstream of water filling port 131 in the present embodiment two.
Optionally, water filling port 131 is for connecting make-up water pump 204, the water that make-up water pump 204 is injected needs by power device
It is injected into water injection well 101, water flow sensor 205 and water flow throttle valve 206, water flow is additionally provided at water filling port 131
Sensor 205 and water flow throttle valve 206 are electrically connected with a control module, and water flow sensor 205 is for detecting injection
Flow in water, then control module is passed information to, control module is compared further according to the information received with preset value,
The closing water filling port of water flow throttle valve 206 is controlled if water flow has reached preset value to stop filling the water into water injection well.
In order to guarantee that the medicament being added is uniformly mixed in water, in the present embodiment, mixing is additionally provided on waterflood-transmission line 103
Blender 207, mixing agitator 207 is for stirring evenly mixed water with drug, to improve in entire oil-water well tracer
In the process to the detection accuracy of tracer.
In order to prevent when the concentration of tracer of the detector 201 in detection injection water, tracer does not mix also in water
Uniformly, as a kind of optional embodiment of the utility model embodiment, instrument 201 can be will test and be arranged in mixing agitator
207 downstream, more accurately to detect tracer concentration.
As a kind of optional embodiment of the utility model embodiment, medicine-pouring port 132 and reactor solution storage container
208 are connected, and reactor solution storage container 208 is connected on medicine-pouring port 132 by conduit, at this moment regulating valve 202
It is positioned close on the conduit of medicine-pouring port 132, regulating valve 202 controls opening for itself according to the information that Intelligent PID controller indicates
Size is spent, to control the concentration of the tracer in injection water.
As a kind of optional embodiment of the utility model embodiment, detector 201 can be tracer detector,
It can be concentration sensor, as long as the concentration for the tracer being added to the water can be detected.
In order to replace manually adjusting, a kind of mode of full-automatic regulation is realized, in the present embodiment, regulating valve 202 is electronic
Regulating valve, and the controlled end of regulating valve 202 is electrically connected with controller 203, the aperture of regulating valve 202 is adjustable.
It is provided with double four LED charactrons displays and alarm on Intelligent PID controller, changes for display density
Data and the current gear of electric control valve, and alarm signal is issued when device fails, type of alarm is to survey
The magnitude upper limit, lower limit and deviation alarm, when detector 201 be continuously detected tracer excessive concentration or it is too low when, PID tune
Section instrument can issue alarm signal, and staff is prompted to carry out equipment fault inspection, to solve a problem promptly, reduce unnecessary
Loss.
The utility model embodiment provides a kind of oil well tracer chemicals dosing plant, including water injection well, waterflood-transmission line, detector,
The well head of regulating valve and controller, waterflood-transmission line and water injection well communicates, and is provided with water filling port on waterflood-transmission line and is used for water
The middle medicine-pouring port that drug is added, regulating valve are located on medicine-pouring port, and the well head of water injection well is arranged in detector, for detecting in water
Drug concentration, detector and regulating valve are electrically connected with the controller, and controller is used for the drug concentration arrived according to detector test
Control to adjust the open and-shut mode of valve.Tracer chemicals dosing plant provided in this embodiment when in use, first passes through detector test
It is injected into the concentration of the tracer in water, and the collected concentration information of institute is converted into electric signal and passes to controller, is controlled
If device is again by the information received and preset concentration value, perhaps certain concentration range is compared and exceeds or be less than
Preset value, controller will send a control signal to regulating valve, and control motor-driven valve is turned down or opened greatly, and can basis
The size of the preset value exceeded calculates the opening value of motor-driven valve needs, and control motor-driven valve reaches certain angle, electronic later
Valve position information can be fed back to controller by valve, and oil well tracer chemicals dosing plant provided by the utility model is using " intelligence is adjusted again for detection-
The mode of section dosage " controls the tracer concentration being added in water injection well, first detects the tracer concentration of addition, then will
Detected value is compared operation with the drug concentration value of setting, not only controls continuous dosing concentration, and reduce operating cost,
Be conducive to the Technique Popularizing application of oil well connection tracer chemicals dosing plant.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned include: ROM, RAM, magnetic disk or
The various media that can store program code such as person's CD.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " are used for description purposes only, and should not be understood as instruction or
It implies relative importance or implicitly indicates the quantity of indicated technical characteristic.The spy of " first ", " second " is defined as a result,
Sign can explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise saying
Bright, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of oil well tracer chemicals dosing plant, which is characterized in that including water injection well, waterflood-transmission line, detector, regulating valve and control
The well head of device, the waterflood-transmission line and the water injection well communicates, and is provided with water filling port on the waterflood-transmission line and is used for water
The middle medicine-pouring port that drug is added, the regulating valve are located on the medicine-pouring port, and the well of the water injection well is arranged in the detector
Mouthful, for detecting the drug concentration in water, the detector and the regulating valve are electrically connected with the controller, the control
Device be used for according to the detector test to drug concentration control the open and-shut mode of the regulating valve.
2. oil well tracer chemicals dosing plant according to claim 1, which is characterized in that the medicine-pouring port is located at the water filling port
Upstream.
3. oil well tracer chemicals dosing plant according to claim 2, which is characterized in that the water filling port is located at the medicine-pouring port
Upstream.
4. oil well tracer chemicals dosing plant according to claim 1-3, which is characterized in that on the waterflood-transmission line also
It is provided with mixing agitator, mixing agitator is for stirring evenly mixed water with drug.
5. oil well tracer chemicals dosing plant according to claim 4, which is characterized in that the detector is arranged in the mixing
The downstream of blender.
6. oil well tracer chemicals dosing plant according to claim 1-3, which is characterized in that the medicine-pouring port and tracer
Agent solution storage container is connected.
7. oil well tracer chemicals dosing plant according to claim 1-3, which is characterized in that the water filling port and Jia Shui
Pump is connected.
8. oil well tracer chemicals dosing plant according to claim 1-3, which is characterized in that the detector is tracer
Agent detector or concentration sensor.
9. oil well tracer chemicals dosing plant according to claim 1-3, which is characterized in that the regulating valve is electronic
Regulating valve, and the controlled end of the regulating valve is electrically connected with the controller, the aperture of the regulating valve is adjustable.
10. oil well tracer chemicals dosing plant according to claim 1-3, which is characterized in that the controller is PID
Adjusting apparatus.
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| CN201820867588.4U CN208473852U (en) | 2018-06-06 | 2018-06-06 | A kind of oil well tracer chemicals dosing plant |
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| CN201820867588.4U CN208473852U (en) | 2018-06-06 | 2018-06-06 | A kind of oil well tracer chemicals dosing plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952980A (en) * | 2019-11-22 | 2020-04-03 | 西南石油大学 | Quantum dot tracer feeding device and fracturing horizontal well output section method |
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2018
- 2018-06-06 CN CN201820867588.4U patent/CN208473852U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952980A (en) * | 2019-11-22 | 2020-04-03 | 西南石油大学 | Quantum dot tracer feeding device and fracturing horizontal well output section method |
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