CN106894786A - Low-permeability oil deposit water plugging and profile controlling on-line monitoring system and method - Google Patents
Low-permeability oil deposit water plugging and profile controlling on-line monitoring system and method Download PDFInfo
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- CN106894786A CN106894786A CN201710208825.6A CN201710208825A CN106894786A CN 106894786 A CN106894786 A CN 106894786A CN 201710208825 A CN201710208825 A CN 201710208825A CN 106894786 A CN106894786 A CN 106894786A
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- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
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- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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- 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
- E21B47/00—Survey of boreholes or wells
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Control Of Non-Electrical Variables (AREA)
Abstract
The invention discloses a kind of low-permeability oil deposit water plugging and profile controlling on-line monitoring system and method, the system includes distributing room for water injection water filling subsystem, Profile Control in Injection Well subsystem and control subsystem, Profile Control in Injection Well subsystem includes medicine-adding bin, NaOH solution tank NaOH and injection pump, accurate measurement pump is provided between medicine-adding bin and NaOH solution tank NaOH, the uphole end of water injection well is provided with pressure gauge and pressure transmitter, and control subsystem includes data analysis processor, timer and data transmission unit；The method comprising the steps of：First, monitoring system initialization；2nd, the pressure actual value of water injection well is read；3rd, the operating of monitoring system；4th, judge whether monitoring system is working properly；5th, judge whether the current pressure actual value of water injection well rises to water injection well pressure prediction threshold value；6th, alarm and Profile Control in Injection Well subsystem is stopped；7th, the remote transmission of generation data sheet and data sheet.The present invention realizes continuously matching somebody with somebody liquid, fluid injection, real time on-line monitoring profile control, it is ensured that construction effect.
Description
Technical field
The invention belongs to Profile Control in Injection Well technical field, and in particular to a kind of low-permeability oil deposit water plugging and profile controlling on-line monitoring system
System and method.
Background technology
At present, low-permeability oil deposit water plugging and profile controlling scene is more is disposably equipped with substantial amounts of profile control agent using NaOH solution tank NaOH, actually makes
In, the disposable a large amount of profile control agents being equipped with all are pumped into water injection well carries out water blockoff, and the usage amount of profile control agent can not be accurate
It is measured, the excess or shortcoming of profile control agent are easily caused, the excess of profile control agent causes the wasting of resources, and cost increases, profile control agent
Shortcoming causes water plugging effect bad, in the case of continuously not matching somebody with somebody liquid and continuous metering device at the scene, it is impossible to which realization is continuously matched somebody with somebody
Liquid, directly affects the implementation of profile control and water plugging technique, and design meets the profile control and water plugging special equipment of profile control and water plugging technological requirement, carved
Do not allow to delay；Therefore, nowadays lack a kind of low-permeability oil deposit water plugging and profile controlling on-line monitoring system and method, realize work progress
In, meet corresponding collaboration contact between injection pressure, injection length, injection discharge capacity, accumulative injection rate, it is ensured that heavy dose of profile control
While the injection of liquid, it is ensured that blocking agent reaches and is prematurely crosslinked, precipitates and expands, it is ensured that the purpose of profile control and water plugging effect.
The content of the invention
The technical problems to be solved by the invention are for above-mentioned deficiency of the prior art, there is provided a kind of low-permeability oil
Water plugging and profile controlling on-line monitoring system is hidden, it is novel in design rationally, that realizes profile control agent continuously matches somebody with somebody liquid, meets Profile Control in Injection Well liquid
The dynamic regulation of requirement, real time on-line monitoring profile control, it is ensured that construction effect is easy to promote the use of.
In order to solve the above technical problems, the technical solution adopted by the present invention is：Low-permeability oil deposit water plugging and profile controlling is monitored on-line
System, it is characterised in that：Including distributing room for water injection water filling subsystem, Profile Control in Injection Well subsystem and for monitoring the water injection well on-line
The control subsystem of profile control subsystem operation, the Profile Control in Injection Well subsystem includes filling line and is successively set on described
It is used to allocate the medicine-adding bin of profile control agent, the NaOH solution tank NaOH for storing deployed profile control agent and be pumped into water injection well on filling line
The injection pump of profile control agent, the pipeline section connected between medicine-adding bin and NaOH solution tank NaOH on the filling line is metal hose, the metal
Accurate measurement pump is installed on flexible pipe, be provided with the pipeline section connected between NaOH solution tank NaOH and injection pump on the filling line for
The electromagnetic flowmeter of the profile control agent flux of collection NaOH solution tank NaOH output, is provided with the stirring for uniform stirring profile control agent in medicine-adding bin
Machine, the top of NaOH solution tank NaOH is provided with radar level gauge, and the uphole end of water injection well is provided with for gathering and shows distributing room for water injection water filling
Subsystem includes number to the pressure gauge of injection pressure and the pressure transmitter being connected with pressure gauge, the control subsystem
The memory that according to analysis processor and is connected with data analysis processor, timer, the USB interface for data copy and
For the data transmission unit of remote transmission low-permeability oil deposit water plugging and profile controlling field working conditions, the input of data analysis processor is terminated
There are the video collector for gathering low-permeability oil deposit water plugging and profile controlling field working conditions information, the output termination of data analysis processor
Sound light crossing-signal, display screen and the steering wheel module for driving cloud platform rotation, video collector are arranged on head, radar liquid
Position meter, pressure transmitter, electromagnetic flowmeter and video collector pass through field data acquisition unit and data analysis processor
Input connection, the data transmission unit includes router and the server that is connected with router and public network port.
Above-mentioned low-permeability oil deposit water plugging and profile controlling on-line monitoring system, it is characterised in that：Also include digital control platform, the number
Control platform is communicated by router with data analysis processor, and the output of digital control platform is terminated with printer.
Above-mentioned low-permeability oil deposit water plugging and profile controlling on-line monitoring system, it is characterised in that：The public network port is interior embossing
The peanut rod of raw shell.
Above-mentioned low-permeability oil deposit water plugging and profile controlling on-line monitoring system, it is characterised in that：The field data acquisition unit
Including the program control increase amplifier of multichannel and program control with described in multichannel increase the data collecting card that is all connected with of amplifier.
Above-mentioned low-permeability oil deposit water plugging and profile controlling on-line monitoring system, it is characterised in that：It is described it is program control increase amplifier be
The programmable gain instrumentation amplifiers of PGA205.
Above-mentioned low-permeability oil deposit water plugging and profile controlling on-line monitoring system, it is characterised in that：The video collector is focal length
Adjustable high-definition camera, the high-definition camera passes through coaxial video cable by transmission of video images to Data Analysis Services
Device.
Meanwhile, the invention also discloses a kind of method and step is simple, reasonable in design, detectable profile control effect and exist in real time
The method of line monitoring site operating mode, it is characterised in that the method is comprised the following steps：
Step one, monitoring system initialization：First, monitoring system is initialized by the way of electrification reset, really
Determine monitoring system normally to use；Then, water injection well pressure prediction threshold value is set, water injection well pressure prediction threshold value storage is existed
In memory；
Step 2, the pressure actual value for reading water injection well：Distributing room for water injection water filling subsystem is that water injection well injects pressure, using pressure
Power transmitter obtains the pressure of water injection well, and the pressure value of water injection well is pre-processed by field data acquisition unit, is noted
The pressure actual value of well is simultaneously transmitted to data analysis processor, meanwhile, remote monitor can use remote terminal, by public network
Port remote access router, checks the video image information of video collector collection, and video collector is the height of focus adjustable
Clear video camera, drives head to be driven by data analysis processor, the dynamic collection site image information of high-definition camera,
The pressure actual value of the water injection well of the actual measurement of pressure gauge is checked, the pressure actual value is not more than water injection well pressure prediction threshold
Value；
The operating of step 3, monitoring system：First, profile control site operation personnel are according to adding the ratio of liquid in medicine-adding bin
Configuration profile control agent to be used is carried out, while the profile control agent to be used that medicine-adding bin is configured is stirred using mixer, really
The full and uniform dissolving of profile control agent to be used is protected, after profile control agent configuration successful to be used, solution is pumped into by accurate measurement pump
In tank；Then, according to the advance low-permeability oil deposit depth prediction value for obtaining, the speed that profile control agent is fed through infiltration lane section is calculated
Degree, wherein, the time that profile control agent configures rear profile control agent crosslinking determines that the liquid level for obtaining profile control agent using radar level gauge is high
Degree, data analysis processor control dispenser pump pumps out profile control agent speed, while what electromagnetic flowmeter collection profile control agent output was used
Flow；Finally, timer record distributing room for water injection water filling subsystem is used to be actually implanted into time, Yi Jishi for water injection well injection pressure
When read the current pressure actual value of water injection well；
Step 4, judge whether monitoring system is working properly：Distributing room for water injection water filling is set beforehand through data analysis processor
Subsystem is the injection length threshold value that water injection well injection pressure is not changed over time, and is stored in memory, when timer note
When being actually implanted into the time more than the injection length threshold value stored in memory of record, illustrates that monitoring system work is abnormal, performs
Step 6；When timer record be actually implanted into time no more than memory in store injection length threshold value when, illustrate monitor
System is working properly, performs step 5；
Step 5, judge whether the current pressure actual value of water injection well rises to water injection well pressure prediction threshold value：Pressure becomes
Device or the current pressure actual value of the water injection well of pressure gauge acquisition are sent, when the current pressure actual value of water injection well is less than water injection well pressure
During power prediction threshold value, circulation step three；When the current pressure actual value of water injection well rises to water injection well pressure prediction threshold value, hold
Row step 6；
Step 6, alarm and Profile Control in Injection Well subsystem are stopped：Data analysis processor controls sound and light alarm
Device prompting site operation personnel check monitoring system working condition, while data analysis processor control dispenser pump and accurate measurement
Pump shuts down；
The remote transmission of step 7, generation data sheet and data sheet：Data analysis processor by radar level gauge,
Pressure transmitter and the data of electromagnetic flowmeter collection are depicted as curve and generate data sheet, and the prison that data sheet is reacted
Measurement information is transmitted by router remote online.
Above-mentioned method, it is characterised in that：Field data acquisition unit includes the program control increase amplifier of multichannel in step 2
The data collecting card that program control increase amplifier is all connected with described in multichannel, pressure of the field data acquisition unit to water injection well
Value is filtered amplification pretreatment；The remote terminal is mobile phone or computer.
Above-mentioned method, it is characterised in that：Low-permeability oil deposit depth is obtained using ultrasonic detector in advance in step 3
Predicted value, the liquid level of profile control agent is obtained using radar level gauge, and the liquid level of NaOH solution tank NaOH is set by data analysis processor
Height threshold, when the liquid level that radar level gauge obtains profile control agent is less than the liquid level threshold value of NaOH solution tank NaOH, by accurate
Measuring pump pumps into profile control agent to NaOH solution tank NaOH, when the liquid level that the liquid level that radar level gauge obtains profile control agent is not less than NaOH solution tank NaOH is high
During degree threshold value, accurate measurement air pump inoperative.
The present invention has advantages below compared with prior art：
1st, the low-permeability oil deposit water plugging and profile controlling on-line monitoring system that the present invention is used adds liquid using medicine-adding bin stirring makes tune
Cut open liquid configuration uniform, the profile control solution of actual requirement is accurately pumped into using accurate measurement pump, it is to avoid the disposable profile control that will be allocated
Liquid all pumps into water injection well, causes the waste of solution, is easy to promote the use of.
2nd, the low-permeability oil deposit water plugging and profile controlling on-line monitoring system that the present invention is used passes through distributing room for water injection water filling subsystem, water filling
Cooperation between well profile control subsystem and control subsystem, meets water injection well injection pressure and profile control solution injection length, injection
Corresponding collaboration contact between discharge capacity, accumulative injection rate, reliable and stable, using effect is good, while remotely being passed using wireless data
It is defeated, by installing public network port on the router, realize supporting public network, meet the effect of supervisor's remote online monitoring.
3rd, the method that the present invention is used, is carried out by reading water injection well pressure value with given water injection well pressure prediction threshold value
Compare in real time, while according to the transformation period of pressure value, the working condition of Profile Control in Injection Well subsystem is judged, in addition, passing through
The mode of long-range monitoring monitors field working conditions on-line, reduces the use of labour, is easy to promote the use of.
In sum, the present invention is novel in design rationally, and that realizes profile control agent continuously matches somebody with somebody liquid, meets the need of Profile Control in Injection Well liquid
The dynamic regulation to be measured, real time on-line monitoring profile control, it is ensured that construction effect is easy to promote the use of.
Below by drawings and Examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is the structural representation of low-permeability oil deposit water plugging and profile controlling on-line monitoring system of the present invention.
Fig. 2 is the schematic block circuit diagram of present invention infiltration oil reservoir water plugging and profile controlling on-line monitoring system.
Fig. 3 is the FB(flow block) of the inventive method.
Description of reference numerals:
1-distributing room for water injection water filling subsystem；2-water injection well；3-water filling layer；
4-infiltration lane；5-pressure gauge；6-pressure transmitter；
7-injection pump；8-electromagnetic flowmeter；9-radar level gauge；
10-NaOH solution tank NaOH；11-accurate measurement pump；12-medicine-adding bin；
13-mixer；14-metal hose；15-video collector；
16-timer；17-memory；
18-field data acquisition unit；19-data analysis processor；
20-display screen；21-steering wheel module；22-head；
23-audible-visual annunciator；24-USB interface；25-router；
26-server；27-public network port；28-digital control platform.
Specific embodiment
As depicted in figs. 1 and 2, low-permeability oil deposit water plugging and profile controlling on-line monitoring system of the present invention, including distributing room for water injection
Water filling subsystem 1, Profile Control in Injection Well subsystem and the control subsystem for monitoring the Profile Control in Injection Well subsystem operation on-line
System, the Profile Control in Injection Well subsystem includes filling line and is successively set on the filling line to be used to allocate profile control agent
Medicine-adding bin 12, the NaOH solution tank NaOH 10 for storing deployed profile control agent and the injection pump 7 of profile control agent is pumped into water injection well 2, institute
It is metal hose 14 to state the pipeline section connected between medicine-adding bin 12 and NaOH solution tank NaOH 10 on filling line, is installed on the metal hose 14
There is accurate measurement pump 11, be provided with for gathering on the pipeline section connected between NaOH solution tank NaOH 10 and injection pump 7 on the filling line
The electromagnetic flowmeter 8 of the profile control agent flux of the output of NaOH solution tank NaOH 10, stirring for uniform stirring profile control agent is provided with medicine-adding bin 12
Machine 13 is mixed, the top of NaOH solution tank NaOH 10 is provided with radar level gauge 9, and the uphole end of water injection well 2 is provided with matches somebody with somebody for gathering and showing
Water filling subsystem 1 is to the pressure gauge 5 of the water injection pressure of water injection well 2 and the pressure transmitter 6 being connected with pressure gauge 5, the control between water
Subsystem include data analysis processor 19 and be connected with data analysis processor 19 memory 17, timer 16,
USB interface 24 for data copy and the data transfer list for remote transmission low-permeability oil deposit water plugging and profile controlling field working conditions
Unit, the input of data analysis processor 19 is terminated with being adopted for gathering the video of low-permeability oil deposit water plugging and profile controlling field working conditions information
Storage 15, the output of data analysis processor 19 is terminated with audible-visual annunciator 23, display screen 20 and for driving head 22 to rotate
Steering wheel module 21, video collector 15 be arranged on head 22 on, radar level gauge 9, pressure transmitter 6, the and of electromagnetic flowmeter 8
Video collector 15 is connected by field data acquisition unit 18 with the input of data analysis processor 19, and the data are passed
Defeated unit includes router 25 and the server 26 being connected with router 25 and public network port 27.
Medicine-adding bin 12, NaOH solution tank NaOH 10 and injection pump 7 are set gradually on filling line, it is therefore an objective to by profile control agent from being configured to pump
Enter water injection well 2 and realize integrated design, it is to avoid disposably configure substantial amounts of profile control solution and be all injected into water injection well 2, realize
The controllable operating of profile control flow quantity in water injection well 2, metal hose 14 is disposed to profile control deployed in medicine-adding bin 12
Agent is passed through in NaOH solution tank NaOH 10, is easy to medicine-adding bin 12 and the arbitrary installation position of NaOH solution tank NaOH 10, can meet ground dosing, prevents workman
Work high above the ground, reduces potential safety hazard；The setting of accurate measurement pump 11 is in order to realize being input into profile control solution at regular time and quantity, it is ensured that profile control solution
The stability and accuracy of addition, using the usage amount of the accumulative superposition profile control solution of electromagnetic flowmeter 8, the setting of radar level gauge 9
Be in order to detect the height of liquid level in NaOH solution tank NaOH 10, it is actually used in, the height of liquid level can not be too high in NaOH solution tank NaOH 10, can not
Too low, the height of liquid level is too high in NaOH solution tank NaOH 10, easily causes that the pressure of NaOH solution tank NaOH 10 is excessive or even spilling of solution, NaOH solution tank NaOH 10
The height of middle liquid level is too low, and liquid storage amount is not enough in easily causing NaOH solution tank NaOH 10, causes the demand deficiency of injection pump 7；Pressure gauge 5 and pressure
The setting purpose of power transmitter 6 is the pressure value for gathering water injection well 2 simultaneously, and it is quick that pressure gauge 5 one can meet site operation personnel
Pressure value is intuitively observed, two is intuitively to check water filling to pass through the long-range monitoring personnel for checking scene of video collector 15
The pressure of well 2, pressure transmitter 6 can be transmitted to control subsystem the pressure data of water injection well 2, the setting of timer 16 be for
Calculating water injection time, it is to avoid more moisture are brought to the water filling of infiltration lane 4 to oil well without discovering due to long-time, is dropped
Low tar productivity, being disposed to of USB interface 24 is avoided during without network, and data cannot be gathered, and USB interface 24 is inserted using USB flash disk,
Out, manufacturing history curve and video pictures make the data copy that directly data analysis processor 19 is obtained for later stage reference
With the setting of head 22 is realized to install video collector 15 and driving video collector 15 to rotate by the rotation of itself
360 ° of collection site video image informations without dead angle, the control head 22 rotational angle change high precision of steering wheel module 21, service
The monitoring system that is set to of device 26 introduces network environment, equipment is connected into network environment using router 25, while router
25 data communication that can realize multiple communication equipments, the setting of public network port 27 is logical by mobile phone or computer for monitoring personnel
The site operation video image information that fixed IP address checks the collection of video collector 15 is crossed, realizes that on-line monitoring scene is applied
Work.
Preferred pressure transmitter 6 uses pressure measurement range to meet water injection pressure number for the pressure transmitter of 0~40MPa
According to collection demand, pressure gauge 5 uses stainless steel pressure table, and anti-vibration effect is good.
As shown in figure 1, in the present embodiment, also including digital control platform 28, the digital control platform 28 is by router 25 and number
Communicated according to analysis processor 19, the output of digital control platform 28 is terminated with printer.
Digital control platform 28 preferably uses industrial computer, and the collection for live overall data is preserved, and at later data
Reason, generates form and installs printer, meets printing demand.
In the present embodiment, the public network port 27 is the peanut rod of embedded peanut shell.
In the present embodiment, the field data acquisition unit 18 include multichannel it is program control increase amplifier and with described in multichannel
The data collecting card that program control increase amplifier is all connected with, the program control increase amplifier is put for the programmable gain instruments of PGA205
Big device.
In actually used, electromagnetic flowmeter, radar level gauge, the data of pressure transmitter collection are by 4~20mA electricity
Stream signal output, field data acquisition unit 18 be disposed to by current signal be converted to voltage signal and filtering go dry putting
Greatly, the processing requirement of data analysis processor 19 is met, data analysis processor 19 is preferably using Intel (Intel) to strong
E5-1650v2 processors, the low-power consumption response time is short.
In the present embodiment, the video collector 15 is the high-definition camera of focus adjustable, and the high-definition camera passes through
Coaxial video cable is by transmission of video images to data analysis processor 19.
A kind of method of low-permeability oil deposit water plugging and profile controlling on-line monitoring as shown in Figure 3, comprises the following steps：
Step one, monitoring system initialization：First, monitoring system is initialized by the way of electrification reset, really
Determine monitoring system normally to use；Then, water injection well pressure prediction threshold value is set, water injection well pressure prediction threshold value storage is existed
In memory 17；
Step 2, the pressure actual value for reading water injection well：Distributing room for water injection water filling subsystem 1 is that water injection well 2 injects pressure, is used
Pressure transmitter 6 obtains the pressure of water injection well 2, and the pressure value of water injection well 2 is pre-processed by field data acquisition unit 18,
Obtain the pressure actual value of water injection well 2 and transmit to data analysis processor 19, meanwhile, remote monitor can be using long-range whole
End, by the remote access router 25 of public network port 27, checks the video image information of the collection of video collector 15, video acquisition
Device 15 is the high-definition camera of focus adjustable, drives head 22 to be driven by data analysis processor 21, the high-definition camera
Dynamic collection site image information, checks the pressure actual value of the water injection well 2 of the actual measurement of pressure gauge 5, the pressure reality
Value is not more than water injection well pressure prediction threshold value；
Water injection well pressure prediction threshold value is pressure value of the infiltration lane 4 completely by closure when impermeable in water injection well 2, described
Pressure actual value is not more than water injection well pressure prediction threshold value and meets actual pressure measxurement state.
The operating of step 3, monitoring system：First, profile control site operation personnel are according to adding the ratio of liquid in medicine-adding bin 12
In carry out configuration profile control agent to be used, while being stirred the profile control agent to be used that medicine-adding bin 12 is configured using mixer 13
Mix, it is ensured that the full and uniform dissolving of profile control agent to be used, after profile control agent configuration successful to be used, by the pump of accurate measurement pump 11
In entering NaOH solution tank NaOH 10；Then, according to the advance low-permeability oil deposit depth prediction value for obtaining, calculate profile control agent and be fed through infiltration lane
The speed of section, wherein, the time that profile control agent configures rear profile control agent crosslinking determines, profile control is obtained using radar level gauge 9
The liquid level of agent, the control dispenser pump 7 of data analysis processor 19 pumps out profile control agent speed, while the collection of electromagnetic flowmeter 8 is adjusted
Cut open the flow that agent output is used；Finally, it is the injection pressure of water injection well 2 to use timer 16 to record distributing room for water injection water filling subsystem 1
The time is actually implanted into, and reads the current pressure actual value of water injection well 2 in real time；
Step 4, judge whether monitoring system is working properly：Noted beforehand through the setting distributing room for water injection of data analysis processor 19
Water subsystem 1 is the injection length threshold value that the injection pressure of water injection well 2 is not changed over time, and is stored in memory 17, works as meter
When being actually implanted into the time more than the injection length threshold value stored in memory 17 of the record of device 16, illustrate that monitoring system works not
Normally, step 6 is performed；When timer 16 record be actually implanted into time no more than memory 17 in store injection length threshold
During value, illustrate that monitoring system is working properly, perform step 5；
The time that is actually implanted into recorded by timer 16 is compared with the injection length threshold value of storage in memory 17,
Distributing room for water injection water filling subsystem 1 unconfined can not lengthen for the water injection time of water injection well 2, it is to avoid for oil well brings moisture impurity, drop
Low tar productivity, need in time adjust profile control position, carry out the real-time of water injectivity profile modification technology.
Step 5, judge whether the current pressure actual value of water injection well rises to water injection well pressure prediction threshold value：Pressure becomes
Device 6 or the current pressure actual value of the water injection well 2 of the acquisition of pressure gauge 5 are sent, when the current pressure actual value of water injection well 2 is less than water filling
During well pressure prediction threshold value, circulation step three；When the current pressure actual value of water injection well 2 rises to water injection well pressure prediction threshold value
When, perform step 6；
Step 6, alarm and Profile Control in Injection Well subsystem are stopped：Data analysis processor 19 controls acousto-optic report
The alert prompting of device 23 site operation personnel check monitoring system working condition, while the control He of dispenser pump 7 of data analysis processor 19
Accurate measurement pump 11 shuts down；
Alarm and occur two kinds of situations when Profile Control in Injection Well subsystem is stopped, one is the reality of the record of timer 16
Border injection pressure time is long, water blockoff failure；Two is that the current pressure actual value of water injection well 2 rises to water injection well pressure prediction threshold
Value, water blockoff success, by data transfer or the type of collection identification alarm.
The remote transmission of step 7, generation data sheet and data sheet：Data analysis processor 19 is by radar level
Meter 9, pressure transmitter 6 and the data of the collection of electromagnetic flowmeter 8 are depicted as curve and generate data sheet, and data sheet is anti-
The monitoring information answered is transmitted by the remote online of router 25.
In the present embodiment, field data acquisition unit 18 includes the program control increase amplifier of multichannel and and multichannel in step 2
The data collecting card that the program control increase amplifier is all connected with, field data acquisition unit 18 is carried out to the pressure value of water injection well 2
Filter and amplification is pre-processed；The remote terminal is mobile phone or computer.
In the present embodiment, low-permeability oil deposit depth prediction value is obtained using ultrasonic detector in advance in step 3, used
Radar level gauge 9 obtains the liquid level of profile control agent, and the liquid level threshold of NaOH solution tank NaOH 10 is set by data analysis processor 19
Value, when the liquid level that radar level gauge 9 obtains profile control agent is less than the liquid level threshold value of NaOH solution tank NaOH 10, by accurate measurement
Pump 11 pumps into profile control agent to NaOH solution tank NaOH 10, when the liquid level that radar level gauge 9 obtains profile control agent is not less than the liquid of NaOH solution tank NaOH 10
During the height threshold of position, accurate measurement pump 11 does not work.
In the present embodiment, liquid level that job site is shown in real time, the profile control agent flux for using, water injection well 2 pressure with
And live video image information transfer, to digital control platform 28 or remote terminal, liquid level, flow, pressure parameter to collection are drawn and are gone through
History curve and data sheet are easy to use for post analysis treatment, without carrying out professional training to user of service.
The above, is only presently preferred embodiments of the present invention, and not the present invention is imposed any restrictions, every according to the present invention
Any simple modification, change and equivalent structure change that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (9)
1. low-permeability oil deposit water plugging and profile controlling on-line monitoring system, it is characterised in that：Including distributing room for water injection water filling subsystem (1), water filling
Well profile control subsystem and the control subsystem for monitoring the Profile Control in Injection Well subsystem operation on-line, the Profile Control in Injection Well
Subsystem includes filling line and is successively set on the filling line being used to allocate the medicine-adding bin (12) of profile control agent, being used for
The NaOH solution tank NaOH (10) for storing deployed profile control agent and the injection pump (7) that profile control agent is pumped into water injection well (2), the filling line
The pipeline section connected between upper medicine-adding bin (12) and NaOH solution tank NaOH (10) is metal hose (14), is provided with the metal hose (14)
Accurate measurement pump (11), be provided with the pipeline section connected between NaOH solution tank NaOH (10) and injection pump (7) on the filling line for
The electromagnetic flowmeter (8) of the profile control agent flux of collection NaOH solution tank NaOH (10) output, is provided with for uniform stirring in medicine-adding bin (12)
The mixer (13) of profile control agent, the top of NaOH solution tank NaOH (10) is provided with radar level gauge (9), and the uphole end of water injection well (2) is set
There are for gathering and show pressure gauge (5) and and pressure gauge of distributing room for water injection water filling subsystem (1) to water injection well (2) water injection pressure
(5) connection pressure transmitter (6), the control subsystem include data analysis processor (19) and with data analysis at
Memory (17), timer (16), the USB interface (24) for data copy and low for remote transmission of reason device (19) connection
The data transmission unit of oil reservoir water plugging and profile controlling field working conditions is permeated, the input of data analysis processor (19) is terminated with for gathering
The video collector (15) of low-permeability oil deposit water plugging and profile controlling field working conditions information, the output of data analysis processor (19) is terminated with
Audible-visual annunciator (23), display screen (20) and the steering wheel module (21) for driving head (22) to rotate, video collector (15)
On head (22), radar level gauge (9), pressure transmitter (6), electromagnetic flowmeter (8) and video collector (15) are
It is connected with the input of data analysis processor (19) by field data acquisition unit (18), the data transmission unit includes
Router (25) and the server (26) being connected with router (25) and public network port (27).
2. according to the low-permeability oil deposit water plugging and profile controlling on-line monitoring system described in claim 1, it is characterised in that：Also include numerical control
Platform (28), the digital control platform (28) is communicated by router (25) with data analysis processor (19), digital control platform (28)
Output be terminated with printer.
3. according to the low-permeability oil deposit water plugging and profile controlling on-line monitoring system described in claim 1, it is characterised in that：The public network end
Mouth (27) is the peanut rod of embedded peanut shell.
4. according to the low-permeability oil deposit water plugging and profile controlling on-line monitoring system described in claim 1, it is characterised in that：The live number
According to collecting unit (18) is including the program control increase amplifier of multichannel and program control with described in multichannel increases the data that are all connected with of amplifier
Capture card.
5. according to the low-permeability oil deposit water plugging and profile controlling on-line monitoring system described in claim 4, it is characterised in that：The program control increasing
Big amplifier is the programmable gain instrumentation amplifiers of PGA205.
6. according to the low-permeability oil deposit water plugging and profile controlling on-line monitoring system described in claim 1, it is characterised in that：The video is adopted
Storage (15) is the high-definition camera of focus adjustable, the high-definition camera by coaxial video cable by transmission of video images extremely
Data analysis processor (19).
7. a kind of method that low-permeability oil deposit water plugging and profile controlling on-line monitoring is carried out using system as claimed in claim 1, its feature
It is：The method is comprised the following steps：
Step one, monitoring system initialization：First, monitoring system is initialized by the way of electrification reset, it is determined that prison
Examining system is normally used；Then, water injection well pressure prediction threshold value is set, by water injection well pressure prediction threshold value storage in storage
In device (17)；
Step 2, the pressure actual value for reading water injection well：Distributing room for water injection water filling subsystem (1) injects pressure for water injection well (2), uses
Pressure transmitter (6) obtains the pressure of water injection well (2), and the pressure value of water injection well (2) is passed through into field data acquisition unit
(18) pre-process, obtain the pressure actual value of water injection well (2) and transmit to data analysis processor (19), meanwhile, remote monitoring
Person can use remote terminal, by public network port (27) remote access router (25), check video collector (15) collection
Video image information, video collector (15) is the high-definition camera of focus adjustable, is driven by data analysis processor (21)
Head (22) is driven, the dynamic collection site image information of high-definition camera, checks the water filling that pressure gauge (5) is actually measured
The pressure actual value of well (2), the pressure actual value is not more than water injection well pressure prediction threshold value；
The operating of step 3, monitoring system：First, profile control site operation personnel are inner in medicine-adding bin (12) according to the ratio for adding liquid
Configuration profile control agent to be used is carried out, while being carried out to the profile control agent to be used that medicine-adding bin (12) is configured using mixer (13)
Stirring, it is ensured that the full and uniform dissolving of profile control agent to be used, after profile control agent configuration successful to be used, by accurate measurement pump
(11) in pumping into NaOH solution tank NaOH (10)；Then, according to the advance low-permeability oil deposit depth prediction value for obtaining, calculate profile control agent and be fed through
The speed of infiltration lane section, wherein, the time that profile control agent configures rear profile control agent crosslinking determines, using radar level gauge
(9) liquid level of profile control agent is obtained, data analysis processor (19) controls dispenser pump (7) to pump out profile control agent speed, while electric
The flow that magnetic flowmeter (8) collection profile control agent output is used；Finally, distributing room for water injection water filling subsystem is recorded using timer (16)
(1) time is actually implanted into for water injection well (2) injection pressure, and reads the current pressure actual value of water injection well (2) in real time；
Step 4, judge whether monitoring system is working properly：Distributing room for water injection water filling is set beforehand through data analysis processor (19)
The injection length threshold value that subsystem (1) is not changed over time for water injection well (2) injection pressure, and store in memory (17),
When timer (16) record is when being actually implanted into the time more than the injection length threshold value of storage in memory (17), illustrate that monitoring is
System work is abnormal, performs step 6；Time no more than memory (17) middle storage is actually implanted into when timer (16) record
Injection length threshold value when, illustrate that monitoring system is working properly, perform step 5；
Step 5, judge whether the current pressure actual value of water injection well rises to water injection well pressure prediction threshold value：Pressure transmitter
(6) or the current pressure actual value of water injection well (2) that obtains of pressure gauge (5), when the current pressure actual value of water injection well (2) is less than
During water injection well pressure prediction threshold value, circulation step three；When the current pressure actual value of water injection well (2), to rise to water filling well pressure pre-
When surveying threshold value, step 6 is performed；
Step 6, alarm and Profile Control in Injection Well subsystem are stopped：Data analysis processor (19) controls sound and light alarm
Device (23) prompting site operation personnel check monitoring system working condition, while data analysis processor (19) control dispenser pump
(7) shut down with accurate measurement pump (11)；
The remote transmission of step 7, generation data sheet and data sheet：Data analysis processor (19) is by radar level gauge
(9), pressure transmitter (6) and the data of electromagnetic flowmeter (8) collection are depicted as curve and generate data sheet, and by datagram
The monitoring information of table reaction is transmitted by router (25) remote online.
8. in accordance with the method for claim 7, it is characterised in that：Field data acquisition unit (18) is including multichannel in step 2
Program control increase amplifier and the data collecting card that program control increase amplifier is all connected with described in multichannel, field data acquisition unit
(18) pressure value to water injection well (2) is filtered amplification pretreatment；The remote terminal is mobile phone or computer.
9. in accordance with the method for claim 7, it is characterised in that：Obtain hypotonic in advance using ultrasonic detector in step 3
Saturating oil reservoir depth prediction value, the liquid level of profile control agent is obtained using radar level gauge (9), by data analysis processor (19)
The liquid level threshold value of setting NaOH solution tank NaOH (10), when the liquid level that radar level gauge (9) obtains profile control agent is less than NaOH solution tank NaOH
(10) during liquid level threshold value, profile control agent is pumped into NaOH solution tank NaOH (10) by accurate measurement pump (11), when radar level gauge (9)
When the liquid level for obtaining profile control agent is not less than the liquid level threshold value of NaOH solution tank NaOH (10), accurate measurement pump (11) does not work.
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| CN112412407A (en) * | 2019-08-23 | 2021-02-26 | 沈阳中科奥维科技股份有限公司 | Industrial wireless oil production well medicine injection box monitoring equipment |
| CN113175314A (en) * | 2021-06-11 | 2021-07-27 | 陈佳欣 | Water distributor convenient for observing water injection layer position for water injection well of oil field |
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