CN104929593B - Intelligent withdrawal well water blockoff stimulation system and control method thereof - Google Patents
Intelligent withdrawal well water blockoff stimulation system and control method thereof Download PDFInfo
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- CN104929593B CN104929593B CN201510288711.8A CN201510288711A CN104929593B CN 104929593 B CN104929593 B CN 104929593B CN 201510288711 A CN201510288711 A CN 201510288711A CN 104929593 B CN104929593 B CN 104929593B
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Abstract
A kind of intelligent withdrawal well stimulation system, including being positioned at aboveground portable computer, aboveground industrial computer, it is positioned at the multiple of down-hole look for water blocked switch device and connect industrial computer and look for the single-core cable of water blocked switch device, water blocked switch device is looked for include the control circuit plate being arranged in housing, above-mentioned control circuit plate includes microcontroller, A/D converter, electric machine controller, Hall element, above-mentioned industrial computer includes microprocessor, one human-machine interface module and a communication interface modules, local power supply, one signal drives module, one high-voltage power module and one receives signal pre-processing module.The intelligent withdrawal well stimulation system of the present invention, it is capable of detecting in real time downhole parameters, in real time detection motor overload situation, power circuit stable performance, and according to downhole parameters to looking for water blocked switch device and oil well valve to control in real time, can ensure that system is run reliably and with long-term.Additionally provide the control method of a kind of intelligent withdrawal well.
Description
Technical field
The present invention relates to oil field and look for water-plugging technique, refer more particularly to a kind of intelligent withdrawal well
Water blockoff stimulation system and control method.
Background technology
" water filling in oil reservoir, with water drive oil ", is commonly used in China's oil extraction in oil field engineering
Drainage process, along with the increase of the oil field development time limit, reservoir is aqueous to be risen year by year, interlayer interference
Contradiction is more and more prominent.For reaching the purpose of water and oil control, it is necessary to implement to look for water blockoff measure.
So-called " looking for water blockoff " is through in control is arranged on oil well casing and each oil reservoir position
In corresponding each water blocked switch device (water blockoff increasing device), unlatching and the Guan Bi of valve control each oil
Layer go out liquid, reach selectively to exploit the purpose of some or certain several oil reservoirs.Traditional
During water pack off process implementing, water detection, water-plugging technology need to separately be carried out, if after looking for plug water construction
Need to adjust need to subjob again, therefore there is operations number many, great in constructing amount, efficiency is low, operation
The problem that cost is high.
For solving this problem, technical staff have developed and automatically controlled looks for water shutoff technology, such as " Lee
Before light " electric-controlled mechanical looks for water shutoff technology to study " " and Application No. " 200820219556.X "
Disclosed in " a kind of controlled seperated layer water injection, oil recovery, water blockoff multi-function device ", ultimate principle
It is: the water blocked switch device (water blockoff increasing device) with down-hole will be controlled in device lower going-into-well with cable
Docking, sends control instruction by cable to water blocked switch device on ground, controls water blocked switch device
The switch of the valve in (water blockoff increasing device).Often adjust once, under just needing, enter a secondary control
Device.
Existing automatically controlled water-plugging technique is looked for be usually present following shortcoming:
1. control device and water blocked switch device (water blockoff increasing device) right being arranged on down-hole
It is connected into power relatively low, and the part of joint is just easily damaged after using several times, reliability
Difference is poor；
When 2, adjusting, just needing stopping production to construct, impact produces；
3, often adjust once, under needs, enter a secondary control device, during adjustment, need to open well
Mouthful, it is therefore desirable to equipment and the associated device operations personnel such as crane, kill-job pump truck, waterwheel, under
Enter to control to need during device to employ cable reel and associated device operations personnel, manpower and materials cost
Higher, the activity duration is the most long.
4, down-hole pressure and state of temperature can not be measured, need to enter by under cable as measured
Other measuring instrument, and this metering system expends more manpower and materials equally, and can not
Realize measuring in real time.
The above-mentioned number of drawbacks existed in view of prior art, the present inventor devises the present invention.
Summary of the invention
One or more in order to solve in above-mentioned technical problem, present invention employs following technology
Scheme:
A kind of intelligent withdrawal well stimulation system, including being positioned at aboveground portable computer, well
On industrial computer, be positioned at multiple water blocked switch devices of down-hole and connect industrial computer and water blocked switch
The single-core cable of device, water blocked switch device includes excluder portion and automatically controlled water blockoff mechanism, packer
Part is for blocking oil pipe annular space and the housing of water blocked switch device being placed in oil pipe central authorities, and water blockoff is opened
The automatically controlled water blockoff mechanism closing device includes that the motor being arranged in housing, spool, valve seat, pressure pass
Sensor, flow transducer, temperature sensor and control motor action and pressure flow temperature letter
Number gather transmission control circuit plate, spool can move within the specific limits, move to first
During position, spool matches to close liquid pass hole with the hole at valve seat center, and spool leaves first
When putting, the hole at valve seat center is opened with opened fluid apertures, above-mentioned housing include sealing-plug assembly,
Circuit board covers, motor shroud；
Above-mentioned control circuit plate includes microcontroller, A/D converter, electric machine controller, Hall
Sensor, wherein, pressure transducer, flow transducer, temperature sensor are changed with A/D
Device communication, sends sensing result to A/D converter, via A/D converter sensing result
Signal sends to microcontroller, and this signal is further processed afterwards by single by microcontroller
Core cable transmission is to pocket computer；
Above-mentioned industrial computer includes microprocessor, a human-machine interface module and a communication interface modules,
Local power supply, human-machine interface module and communication interface modules are in communication with each other with microprocessor respectively,
Local power supply is connected with microprocessor thinks that microprocessor provides power supply, and above-mentioned industrial computer also includes
The signal being connected with microprocessor drives module, a high-voltage power module and one to receive signal
Pretreatment module.
A kind of control method of intelligent withdrawal well, including:
Step 1, reading parameter preset also verify；
Step 2, by being arranged on the sensor acquisition downhole parameters of down-hole；
Step 3, wait instruction, if receiving instruction, then perform next step, if not receiving instruction,
Then return step 2；
Step 4, checking command, if verifying successfully, perform next step, if verifying unsuccessful,
Then return step 2；
Step 5, performs instruction；
Step 6, processes state to portable computer return instruction；
Repeated execution of steps 2 to step 6.
By technique scheme, control device and tie with water blocked switch device (water blockoff increasing device)
It is combined, when installing water blocked switch device (water blockoff increasing device), blocks up with entering UNICOM at present
The taps device (water blockoff increasing device) single-core cable between inner control circuit and ground industrial computer.
After completion, control water blocked switch device (water blockoff volume increase dress by portable computer and industrial computer
Put) in motor action, to realize control to threshold switch, down-hole control circuit plate uses specially
With power circuit, resistance to elevated temperatures is good, and, the portable computer of the present invention and industrial computer
Can be controlled oil well valve, and whether detection motor transships in real time, the present invention at least can solve
Certainly one or more in following technical problem:
1, after installation, technical staff uses computer and industrial computer, adjusts well on ground
The threshold switch of lower random layer position, reliable in action, success rate is high；
2, production process is adjustable, does not affect production；
The single-core cable outlet being connected to industrial computer be fixed on well head is had only to when 3, adjusting
Head, just can carry out switch and adjust, and omnidistance needs a people just can complete, it is not necessary to employ other
Equipment and personnel, can be substantially reduced production cost.
4, adjusting rapidly, the adjustment time of every layer only needs a few minutes, a staff, often
It can adjust tens mouthfuls of wells simultaneously, and the benefit in terms of saving personnel and improving work efficiency is very
Considerable；
5, by being arranged on the pressure sensing in water blocked switch device (water blockoff increasing device) housing
Device and setting temperature sense original paper (temperature sensor) on circuit boards, can be reached by
Pressure and temperature data under portable computer and industrial computer production wells；
6, detecting motor overload situation in real time, power circuit stable performance, the cable of employing connects
Linear sealing sealing structure effect is good, can ensure that system is run reliably and with long-term.
Packer is combined into one by the present invention with water blocked switch device, simplifies well site installation procedure,
It is more convenient for well site lifting operation.Additionally, the voltage-stabilized power supply circuit stable performance that the present invention uses,
High temperature resistant, reliability is high, is beneficial to looking for water blockoff operation to implement to control.
Accompanying drawing explanation
Fig. 1 is the structural representation of the intelligent withdrawal well stimulation system illustrating the embodiment of the present invention
Figure.
Fig. 2 is the schematic diagram illustrating water blocked switch device structure of the present invention.
Fig. 3 is the schematic diagram illustrating water blocked switch device population structure of the present invention.
Fig. 4 is the schematic diagram of the control circuit plate illustrating the embodiment of the present invention.
Fig. 5 is the schematic diagram illustrating voltage-stabilized power supply circuit according to embodiments of the present invention.
Fig. 6 is the operational flowchart illustrating the downhole component according to embodiment of the present invention.
Fig. 7 is to illustrate industrial computer principle schematic according to embodiments of the present invention.
Fig. 8 is to illustrate oil well valve control flow chart according to the preferred embodiment of the invention.
Fig. 9 is the schematic diagram of the cable connection sealing structure of the circuit board covers employing of the present invention.
Detailed description of the invention
The preferred embodiment of the present invention is described in detail hereinafter with reference to accompanying drawing, it should be noted that this
Bright protection domain is not limited by detailed description of the invention herein, but by claim and
Equivalent specifically limits.
Hereinafter with reference to Figure of description, the preferred embodiments of the present invention are specifically described.
Fig. 1 is the structural representation of the intelligent withdrawal well stimulation system illustrating the embodiment of the present invention
Figure.
In Fig. 1, the intelligent withdrawal well stimulation system of the present invention includes being positioned at aboveground portable
Computer 1, aboveground industrial computer 2, between this portable computer 1 and industrial computer 2 preferably
Connected by USB；Be positioned at down-hole multiple look for water blocked switch device 3 and connect industrial computer and
Look for the single-core cable 4 of water blocked switch device.Portable computer 1 is used for receiving, shows, stores
Data, and data operation and relevant control can be performed, industrial computer 2 is used for as each module in down-hole
Power supply and communication, look for water blocked switch device 3 for switching oil reservoir with water layer.
Fig. 2 is the schematic diagram illustrating water blockoff increasing device structure of the present invention, specifically retouches with reference to Fig. 2
State the present invention and look for the structure of water blocked switch device 3.Water blocked switch device 3 is looked for mainly to include packer group
Part 31 and automatically controlled water blockoff mechanism, wherein packer assembly is used for blocking oil pipe annular space and looking for stifled
The housing of taps device is placed in oil pipe central authorities.The automatically controlled water blockoff mechanism looking for water blocked switch device 3 is preferred
The motor 32 that can include being arranged in the housing looking for water blocked switch device 3, thread bush 33, valve rod
(sign), valve head (sign), valve seat 34, pressure transducer (not shown), flow
Sensor (not shown), temperature sensor (not shown) and control motor action and pressure
The control circuit plate 35 of flow temperature signal collection transmission.Wherein it is preferred to, pressure sensing
Device can include positive pressure sensor and B/P EGR Back Pressure Transducer EGR.Wherein, valve rod is threadedly attached in screw thread
In set, valve rod and valve head collectively form spool, and motor can move by band movable valve plug within the specific limits,
When moving to primary importance, spool matches to close liquid pass hole 39 with the hole at valve seat center,
When spool leaves primary importance, the hole at valve seat center is opened and then opened fluid apertures.Liquid pass hole shape
Become looking for water blocked switch device body side.
Preferably, in an embodiment of the present invention, sealing-plug assembly is also included (not in above-mentioned housing
Illustrate), circuit board covers 36, motor shroud 37, spool install set 38.
Preferably, all junctions of the present invention all use the threaded O type that is provided with to seal
The waterproof sealing structure of circle.Single-core cable enters and may be used without the sealing of O type at circuit board covers
Circle carries out waterproof sealing.
Generally it is provided with without seam steel armor layer, referred to as steel armour, single-core cable outside single-core cable
Inside is the wire with insulating barrier, prevents for making cable enter at circuit board covers to bear high pressure
Water-stop, and meet the requirement of not twisted wire when assembling, copper ball is preferably sealed and seals by the present invention
Plug seal combination uses, and by housing screw by copper ball crimp, reaches the mesh of high pressure sealing
, once water enters rubber sleeve outer space, meeting after rubber sleeve pressure-bearing at steel armour or sealing ring
Fitting tightly with the insulating barrier crust of cable, pressure is the biggest, fits the tightst, thus realizes rubber
Gum cover and the positive sealing of insulating barrier crust contact position.Concrete structure can be found in Fig. 9.Fig. 9 is
The cable connection that the circuit board covers of the present invention is used seals the schematic diagram of structure.Specifically,
Cable connection seals structure and includes that sealing-plug guard shield 91, sealing-plug cock body 92 are arranged on sealing-plug
In cock body mounting seat 93, and by the first end of sealing-plug cock body mounting seat with sealing-plug guard shield
(right-hand member of sealing-plug guard shield in corresponding diagram 9) tightly holds connection.Cable connection seals knot
Structure also includes being positioned at sealing-plug guard shield the second end (left end of sealing-plug guard shield in corresponding diagram 9)
Housing screw 94, and the copper ball 95 of housing screw and sealing-plug guard shield joint, be provided with steel armour
The single-core cable of 96 passes housing screw and copper ball, is realized by this housing screw and this copper ball
The first order of control circuit plate is sealed.Cable connection seals structure and also includes that being positioned at sealing-plug protects
Rubber sleeve 97 between cover and control circuit plate, this rubber sleeve has accommodating control circuit plate
Accommodation space.Be not provided with steel armour, only with the single-core cable of covered wire skin 98 at copper ball 95
Stretch into be connected to control circuit plate in rubber sleeve 97, rubber sleeve and single-core cable close proximity
To realize the sealing of the second level to control circuit plate.Preferably, the motor shroud of the present invention also may be used
Use the above-mentioned sealing structure shown in Fig. 9.
Fig. 3 is the schematic diagram of water blocked switch device population structure of the present invention.Figure showing, water blockoff is opened
Close the device 3 facilities in sleeve pipe, as seen from the figure, water blocked switch device 3 is arranged on not
The position that same oil reservoir is corresponding.Additionally, be additionally provided with oil pipe 302 in sleeve pipe 301, electricity
Cable seal nipple 303, tubing anchor 304, and the tubing string end socket near position, artificial bottom of a well
305。
Fig. 4 is the schematic diagram of the control circuit plate illustrating the embodiment of the present invention.Hereinafter with reference to figure
The structure of the 4 control circuit plates describing the present invention and principle.The control circuit plate of the present invention includes
Microcontroller 41, A/D converter 42, electric machine controller 43, Hall element 44.Wherein
A/D converter 42 and microcontroller 41 communication, microcontroller 41 leads to electric machine controller 43
News, electric machine controller 43 controls motor 49 and performs operation, and Hall element 44 is connected to electricity
Between machine 49 and microcontroller 41, for monitoring flow when motor rotates forward.
Wherein, pressure transducer 45, flow transducer 46, temperature sensor (not shown)
With A/D converter communication, sensing result is sent to A/D converter, changes via A/D
Device sensing result signal sends to microcontroller, and this signal is further processed by microcontroller
Transmitted to pocket computer 1 by single-core cable afterwards.
Preferably, control circuit plate also includes voltage-stabilized power supply circuit 47 or set of cells.
It is highly preferred that control circuit plate uses voltage-stabilized power supply circuit.This voltage-stabilized power supply circuit can lead to
Cross communication coding-decoding circuit 48 to be connected with microcontroller, be used for as control circuit plate and motor etc.
Downhole component is powered, needing for corresponding assembly offer 5V, 12V and/or 24V according to each assembly
Voltage.In this optimal way, also can set between voltage-stabilized power supply circuit and portable computer
Put communication coding-decoding circuit, or industrial computer self can realize the function of communication coding-decoding circuit.
Fig. 5 is to describe the schematic diagram of voltage-stabilized power supply circuit in the preferred embodiment for the present invention.At this
In this preferred implementation of invention, seeing accompanying drawing 4, voltage-stabilized power supply circuit mainly includes J-type
Field effect transistor J, the first and second variable resistance R1, R2, the BJT pipe T1, the 2nd BJT
Pipe T2, the first and second electric capacity C1 and C2, thermo-sensitive resistor RS, wherein, J-type field effect
The drain electrode of pipe is connected with the colelctor electrode of input VI and T1, the source electrode of J-type field effect transistor and first
Second end of variable resistance R1 connects, the grid of J-type field effect transistor and the first variable resistance R1
The first end, first end of the first electric capacity C1, the colelctor electrode of T2 and T1 base stage connect,
The emitter stage of T1 is connected with output VO, first end of the second electric capacity C2, the emitter stage of T2 and
First end of thermo-sensitive resistor RS connects, second end of the base stage of T2 and the second electric capacity C2 and the
First end of two variable resistance R2 connects, second end of the first electric capacity C1, thermo-sensitive resistor RS
The second end and the second end common ground of the second adjustable resistance R2.A wherein BJT pipe
T1 and the 2nd BJT pipe T2 is preferably NPN type silicone tube.Further, wherein, C2 can use resistance
Replace.
Additionally, the voltage-stabilized power supply circuit of the present invention may also include bleeder circuit (not shown in accompanying drawing),
For providing different voltage for different assemblies according to demand.
The above-mentioned power circuit resistance to elevated temperatures that present invention preferably employs is good, and stability is high, especially
It is suitable for using in extreme circumstances, and, by using thermo-sensitive resistor can realize power circuit
Temperature-compensating, realizes automatic voltage regulation simultaneously.
Preferably, the mode of operation of the down-hole control circuit plate of the present invention is: pressure transducer,
Sensing result is sent to microcontroller by flow transducer, temperature sensor, and microcontroller will sense
Surveying result to send to portable computer, the information received is combined by portable computer 1
Splitting or integrating is analysed, is calculated and judge, sends instruction according to sensing result, and is passed by industrial computer 2
Delivering to control circuit plate, the instruction that control circuit buttress sends according to portable computer 1 produces control
Signal processed, is rotated forward by motor controller controls motor or is inverted, in the case of rotating forward, and electricity
Machine band movable valve plug is stepped back, and looks for the opened fluid apertures of water blocked switch device 3, in the case of reversion, motor
Band movable valve plug advances, and looks for water blocked switch device 3 to close liquid pass hole.Thus, the present invention look for water blockoff
Multiple layers of position can be controlled by stimulation system aboveground simultaneously, reaches separate zone production precipitable water
The purpose of volume increase.
Describe in a preferred embodiment of the invention with reference to Fig. 6, the operation bag of each assembly in down-hole
Include following steps:
Start from step S1, start；
Step S2, initializes；
Step S3, reads parameter preset and verifies；
Step S4, gathers downhole parameters, preferably by being arranged on each sensor enforcement of down-hole
Testing result is also sent to microcontroller, and be sent to portable computer further by detection；
Step S5, waits instruction, and this instruction is preferably sent by portable computer, if receiving
Instruction, performing downwards step S6, if not receiving instruction, being then back to step S4, continue
Gather downhole parameters；
Step S6, checking command, if verifying successfully, perform downwards step S7, if verification
Unsuccessful, then it is back to step S4, gathers downhole parameters；
Step S7, performs instruction；
Step S8, processes state to portable computer return instruction；
Step S9, is back to step S4, gathers downhole parameters.
Fig. 7 shows the industrial computer principle schematic of the present invention.Hereinafter with reference to Fig. 7, this is described
The structure of invention industrial computer and principle.Industrial computer includes microprocessor 71, a human-machine interface mouth die
Block 72 and a communication interface modules 73 are in communication with each other with microprocessor 71 respectively, a local electricity
Source 74 is connected with microprocessor 71 thinks that microprocessor 71 provides power supply, and microprocessor connects
Driving module 75 and a high-voltage power module 76 to a signal, signal drives module 75 basis
The signal generation transmitted from microprocessor drives signal accordingly, and is applied extremely by this driving signal
High-voltage power module 76, signal that high-voltage power module transmits according to microprocessor and above-mentioned
Drive signal to perform boost operations, and the voltage raised is exported to single-core cable 77.At list
Connect between core cable and microprocessor and have reception signal pre-processing module 78, by this reception
Signal pre-processing module, is sent to micro-place after preprocessed for the signal transmitted from single-core cable
Reason device.
Fig. 8 is to illustrate that portable computer is to oil well valve according to the preferred embodiment of the invention
The flow chart controlled.
If after portable computer is analyzed according to the downhole parameters gathered, need to industrial computer
Send instruction to control oil well valve operation, then preferably employ following concrete control method:
Step S101, industrial computer receives switch valve instruction；
Step S102, industrial computer performs the judgement of switch valve instruction, if being judged as closing valve, then
Performing step S103, if being judged as valve opening, then performing step S105；
Step S103, starts the motor looking for water blocked switch device；
Step S104, it is judged that whether motor transships, if being judged as overload, performs downwards step
Rapid S110, if being judged as not transshipping, then returns step S103；
Step S105, if judged result is valve opening in step s 102, sentences the most in this step
Whether disconnected valve is in final position, if the determination result is YES, performs downwards step S111,
If judged result is no, then perform step S106；
Step S106, electric motor starting；
Step S107, detection position sensor of valve is started working；
Whether step S108, judge valve location according to the testing result of position sensor of valve
Put in place, if having put in place, performing downwards step S110, if also not putting in place, then performing S109；
Step S109, it is judged that whether motor transships, if being judged as overload, performs downwards step
Rapid S110, if being judged as not transshipping, then returns step S108；
Step S110, valve driving machine is out of service；
Step S111, is back to portable computer by valve state；
Step S112, terminates.
The intelligent withdrawal well stimulation system above-mentioned by the present invention and control method thereof, it is possible to real
Detection downhole parameters during reality, in real time detection motor overload situation, power circuit stable performance,
And according to downhole parameters to looking for water blocked switch device and oil well valve to control in real time, can ensure that system is long
Phase reliability service.
Although the above-detailed multiple preferred implementation of the present invention, but it is to be understood that
Protection scope of the present invention is not limited to this.It may occur to persons skilled in the art that and can be replaced by other
Implement the present invention for hand-off section.It is all to allow that embodiments of the invention carry out various modifications and variations
, also will fall in the disclosure, accompanying drawing and scope of the following claims.
Claims (3)
1. an intelligent withdrawal well stimulation system, it is characterised in that include being positioned at aboveground portable computer, aboveground industrial computer, be positioned at down-hole
Multiple look for water blocked switch device and connect industrial computer and look for the single-core cables of water blocked switch device,
Looking for water blocked switch device to include packer assembly and automatically controlled water blockoff mechanism, packer assembly is for blocking oil pipe annular space and will look for the housing of water blocked switch device
Be placed in oil pipe central authorities, look for motor that the automatically controlled water blockoff mechanism of water blocked switch device includes being arranged in housing, thread bush, valve rod, valve head, valve seat,
Pressure transducer, flow transducer, temperature sensor and control motor action and the control circuit plate of pressure flow temperature signal collection transmission,
Valve rod is threadedly attached in thread bush, and valve rod and valve head collectively form spool, and spool can move within the specific limits, moves to first
When putting, spool matches to close liquid pass hole with the hole at valve seat center, and when spool leaves primary importance, the hole at valve seat center is opened with opened liquid
Hole；
Above-mentioned control circuit plate includes microcontroller, A/D converter, electric machine controller, Hall element, wherein, and pressure transducer, flow sensing
Device, temperature sensor and A/D converter communication, send sensing result to A/D converter, send out via A/D converter sensing result signal
Delivering to microcontroller, this signal is further processed and is transmitted to portable computer by single-core cable afterwards by microcontroller；
Above-mentioned industrial computer includes microprocessor, a human-machine interface module and a communication interface modules, local power supply, human-machine interface module and communication interface mould
Block is in communication with each other with microprocessor respectively, and local power supply is connected with microprocessor thinks that microprocessor provides power supply, and above-mentioned industrial computer also includes with micro-
The signal that processor connects drives module, a high-voltage power module and one to receive signal pre-processing module；
Wherein control circuit plate uses voltage-stabilized power supply circuit, and this voltage-stabilized power supply circuit is connected with microcontroller by communication coding-decoding circuit, for for controlling
Circuit board and motor downhole component are powered, and this voltage-stabilized power supply circuit includes J-type field effect transistor, the first and second variable resistance R1, R2, the BJT
Pipe T1, the 2nd BJT pipe T2, the first and second electric capacity C1 and C2, thermo-sensitive resistor RS, wherein in voltage-stabilized power supply circuit and portable computing
Be also provided with between machine communicate coding-decoding circuit, or industrial computer self can realize communicate coding-decoding circuit function, the drain electrode of J-type field effect transistor with
The colelctor electrode of input VI and T1 connects, and the source electrode of J-type field effect transistor and second end of the first variable resistance R1 connect, the grid of J-type field effect transistor
Pole is connected with the base stage of the first end, first end of the first electric capacity C1, the colelctor electrode of T2 and the T1 of the first variable resistance R1, the transmitting of T1
Pole is connected with output VO, first end of the second electric capacity C2, and the emitter stage of T2 is connected with first end of thermo-sensitive resistor RS, the base stage of T2 and the
Second end of two electric capacity C2 and first end of the second adjustable resistance R2 connect, second end of the first electric capacity C1, second end of thermo-sensitive resistor RS
With the second end common ground of the second adjustable resistance R2, wherein looking for water blocked switch device to include circuit board covers, this circuit board covers uses cable to connect
Linear sealing structure, this cable connection seals structure and includes sealing-plug guard shield, is arranged on the sealing-plug cock body in sealing-plug cock body mounting seat, sealing-plug
Cock body is tightly held with the first end of sealing-plug guard shield by sealing-plug cock body mounting seat and is connected,
Cable connection seals the copper ball of housing screw that structure also includes being positioned at sealing-plug guard shield the second end and housing screw and sealing-plug guard shield joint, if
There is the single-core cable of steel armour through housing screw and copper ball, realize the first order to control circuit plate by this housing screw and this copper ball and seal,
Cable connection seals structure and also includes the rubber sleeve between sealing-plug guard shield and control circuit plate, and this rubber sleeve has accommodating control circuit plate
Accommodation space, is not provided with steel armour, only single-core cable with covered wire skin and stretches at copper ball in rubber sleeve to be connected to control circuit plate, rubber
Set and single-core cable close proximity seal to realize the second level to control circuit plate, and described signal drives module according to the letter transmitted from microprocessor
Number produce and to drive signal accordingly, and this driving signal is applied to high-voltage power module, the signal that high-voltage power module transmits according to microprocessor
And above-mentioned driving signal performs boost operations, and the voltage output that will raise connects to above-mentioned single-core cable, above-mentioned reception signal pre-processing module
Between single-core cable and microprocessor, by this reception signal pre-processing module, transmit after preprocessed for the signal transmitted from single-core cable
To microprocessor.
2. the control method of the intelligent withdrawal well using intelligent withdrawal well stimulation system as claimed in claim 1, it is characterised in that including:
Step 1, reading parameter preset also verify；
Step 2, by being arranged on the sensor acquisition downhole parameters of down-hole；
Step 3, wait instruction, if receiving instruction, then perform next step, if not receiving instruction, then returns step 2；
Step 4, checking command, if verifying successfully, perform next step, if verifying unsuccessful, then returns step 2；
Step 5, performs instruction；
Step 6, processes state to portable computer return instruction；
Repeated execution of steps 2 to step 6.
3. the control method of intelligent withdrawal well as claimed in claim 2, it is characterised in that also include controlling oil well valve in real time, specifically include:
Step S101, industrial computer receives switch valve instruction；
Step S102, industrial computer performs the judgement of switch valve, if being judged as closing valve, then performing step S103, if being judged as valve opening, then performing step
S105；
Step S103, starts motor；
Step S104, it is judged that whether motor transships, if being judged as overload, performing downwards step S110, if being judged as not transshipping, then returning step
S103；
Step S105, if judged result is valve opening in step s 102, then judge valve whether in final position, if the determination result is YES, downwards
Perform step S111, if judged result is no, then perform step S106；
Step S106, electric motor starting；
Step S107, detection position sensor of valve is started working；
According to the testing result of position sensor of valve, step S108, judges whether valve location puts in place, if having put in place, perform downwards step S110,
If also not putting in place, then perform S109；
Step S109, it is judged that whether motor transships, if being judged as overload, performing downwards step S110, if being judged as not transshipping, then returning step
S108；
Step S110, motor is out of service；
Step S111, is back to portable computer by valve state；
Step S112, terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510288711.8A CN104929593B (en) | 2015-05-29 | 2015-05-29 | Intelligent withdrawal well water blockoff stimulation system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510288711.8A CN104929593B (en) | 2015-05-29 | 2015-05-29 | Intelligent withdrawal well water blockoff stimulation system and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104929593A CN104929593A (en) | 2015-09-23 |
| CN104929593B true CN104929593B (en) | 2016-08-24 |
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| CN108825180A (en) * | 2018-06-13 | 2018-11-16 | 西安奥瑞普瑞电子科技有限公司 | A kind of oil well perforation trajectory observing and controlling positioning system and its observing and controlling localization method |
| CN110857621B (en) * | 2018-08-15 | 2022-03-01 | 中国石油天然气股份有限公司 | Automatic layered water and oil extraction system |
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| CN201292826Y (en) * | 2008-11-19 | 2009-08-19 | 王鑫超 | Controllable zonal injection, oil production and water-shutoff multifunction apparatus |
| CN201546710U (en) * | 2009-11-04 | 2010-08-11 | 中国石油天然气股份有限公司 | Sectionalized water-exploration testing pipe column of casing well-completion horizontal well |
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| CN102536154A (en) * | 2012-02-23 | 2012-07-04 | 大庆新力科技开发有限公司 | Intelligent water-plugging production-increasing device for production well and control method thereof |
| CN102979487B (en) * | 2012-11-26 | 2015-10-07 | 中国石油天然气股份有限公司 | Horizontal well preset cable control water conservancy project skill |
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