CN207048726U - The electric control system of sleeve pipe toe-end intelligence sliding sleeve - Google Patents
The electric control system of sleeve pipe toe-end intelligence sliding sleeve Download PDFInfo
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- CN207048726U CN207048726U CN201720974217.1U CN201720974217U CN207048726U CN 207048726 U CN207048726 U CN 207048726U CN 201720974217 U CN201720974217 U CN 201720974217U CN 207048726 U CN207048726 U CN 207048726U
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Abstract
The utility model discloses the electric control system of sleeve pipe toe-end intelligence sliding sleeve, including pressure sensor, sensor signal transmitting circuit, microprocessor, detonation chain, explosive cord, the lined-cavity charge being sequentially connected, in addition to power supply；Pressure sensor is used to detect wellbore fluid pressure change and pressure change is transformed into physical arrangement variable quantity；Sensor signal transmitting circuit is used to the physical arrangement variable quantity of pressure sensor is converted into data signal and is sent to microprocessor；Microprocessor is used to interpret effective control command to deliver to detonation chain；Detonation chain detonation of shaped charges；Lined-cavity charge is used to trigger sliding sleeve unlatching.The utility model, which avoids, uses larger sliding sleeve Opening pressure value, pressure change in sleeve pipe is detected by pressure sensor, so as to open sliding sleeve by the lined-cavity charge that detonates, reduces the cost for opening sliding sleeve, danger is reduced, improves the chance of success that sliding sleeve is accurately opened.
Description
Technical field
It the utility model is related to the control system of petroleum casing pipe, and in particular to the electrical control system of sleeve pipe toe-end intelligence sliding sleeve
System.
Background technology
At present, bridging plug separate stratum fracfturing technology turns into the important means produced in Low permeable oil and gas reservoirs increasing the storage, but technology master
Rely on coiled tubing and carry out first layer perforation.With the development for boring completion technique and fracturing technique, field requirement horizontal segment is more
Long, segmentation is more.This is that bridging plug staged fracturing technology brings the problem of new：First, for horizontal segment, shorter (coiled tubing can be with
Tripping in is to shaft bottom) horizontal well, bridging plug multistage fracturing technique relies primarily on coiled tubing and carries out first layer perforation, and it is logical to get through pumping
Road, this operation not only expends mint of money, while is also wasted much in the time, wastes time and energy, adds operating cost and wind
Danger；Second, for the horizontal well of horizontal segment longer (coiled tubing be difficult tripping in shaft bottom), due to coiled tubing can not tripping in extremely
Shaft bottom causes to abandon first paragraph payzone.
Sleeve pipe toe-end sliding sleeve follows production casing to enter well together and cemented the well, as first order fracturing sliding bush.The sliding sleeve coordinates
Other segmentation transformation instruments, are not limited by coiled tubing active length, can extend the depth of horizontal segment pressure break.Realize the first order
Intervene storey increase design operation without pit shaft, so as to improve the efficiency structure of fracturing work and operating cost.
Patent CN204113219U discloses a kind of sleeve pipe and starts sliding sleeve, and the sleeve pipe toe-end starts the original substantially that sliding sleeve uses
Reason is to cut pin by the difference force of sliding sleeve both ends different area formation, so as to promote sliding sleeve movement to open.
Patent CN205189848U discloses rupture disk toe-end well cementation fracturing sliding bush, and the unlatching piston of the sliding sleeve is driven by pressure
Dynamic, pressure transmission is provided with rupture disk in path, according to hole condition, designs corresponding rupture value, ensures the pressure in design
Rupture disk, pressure-driven sliding sleeve piston movement, so as to reach the purpose of open sliding sleeve can be got through in power scope.
Existing sleeve pipe toe-end sliding sleeve, which is can be seen that, from presently disclosed domestic patent is mainly based upon absolute pressure in pit shaft
Power, is determined by pressure differential break pin or absolute pressure crushes rupture disk and promotes sliding sleeve to realize unlatching by fluid power again.It is this
The mode of open sliding sleeve mutually conflicts with pit shaft and wellhead assembly pressure test process process to the Stress control in pit shaft：In reservoir reconstruction
Before need to carry out pressure testing to pit shaft and well head, pressure should ensure pit shaft and testing pressure of well head is qualified ensures that toe-end sliding sleeve is not beaten again
Open, this often designs the Opening pressure of toe-end sliding sleeve on pit shaft and testing pressure of well head pressure value, and is opened in toe-end sliding sleeve
When, its Opening pressure has exceeded pit shaft and the standard pressure test pressure of testing pressure of well head operation.For example well head and pit shaft are in pressure testing
Well head pump pressure reaches 90MPa side to be qualified, but wants usually to select when opening the toe-end sliding sleeve based on rupture disk and shear pin
Select well head and be pumped to 95-100MPa, this pressure value is higher than previous pit shaft and well head safe pressure testing value.
In addition, the sleeve pipe toe-end based on pressure difference shear pin is slided over to often result in field application and opened in advance, performance
It is unstable, and the sleeve pipe toe-end sliding sleeve of rupture disc structures is flowed or blow over and cover completely or after structural damage when rupture disk by cement, can all cause to slide
Set can not be normally-open.So in field application, based on pressure differential break pin is fixed or absolute pressure crushes the sleeve pipe of rupture disk
Toe-end sliding sleeve unlatching success rate is extremely low, and about only 30%.
Utility model content
Technical problem to be solved in the utility model is to drive the pressure and pit shaft and well head of sliding sleeve in the prior art
Pressure test pressure conflict, cause the increase of danger coefficient and the low of sliding sleeve chance of success, and it is an object of the present invention to provide a kind of be based on liquid
The sleeve pipe toe-end intelligence sliding sleeve of body pulse signal control, the pressure value of driving sliding sleeve is reduced, reduces danger coefficient, improved sliding sleeve and beat
The success rate opened.
The utility model is achieved through the following technical solutions：
The electric control system of sleeve pipe toe-end intelligence sliding sleeve, including the pressure sensor, the sensor signal that are sequentially connected become
Power transmission road, microprocessor, detonation chain, explosive cord, lined-cavity charge, in addition to be pressure sensor, sensor signal transmitting
Circuit, microprocessor, the power supply of detonation chain power supply；The pressure sensor is used to detect wellbore fluid pressure change and will pressed
Power change transitions are into physical arrangement variable quantity；The sensor signal transmitting circuit is used to become the physical arrangement of pressure sensor
Change amount is converted into data signal and is sent to microprocessor；The microprocessor is used to the data signal being filtered de-noising
And signal extraction, wherein effective control command is interpreted to deliver to detonation chain；The detonation chain is by control command
Lined-cavity charge is delivered to by explosive cord, so as to detonation of shaped charges；The lined-cavity charge is used to trigger sliding sleeve unlatching.
Further, power supply includes the battery that voltage output is 56V and the electric power management circuit that voltage output is 5V, described
Electric power management circuit is connected with battery, and the microprocessor and detonation chain are respectively with being connected battery, the microprocessor and pressure
Force sensor is connected with electric power management circuit respectively.
Further, electric power management circuit includes filter circuit, suppression circuit, the filtering high-frequency rectifier electricity being sequentially connected
Road, in addition to feedback circuit, described feedback circuit one end are connected with rectifier filter circuit, and its other end connects with suppression circuit
Connect.
Further, electric power management circuit includes resistance R12, resistance R13, resistance R14, electrochemical capacitor C3, electrochemical capacitor
C4, electric capacity C5, electrochemical capacitor C6, electrochemical capacitor C7, diode VD1, diode VD2, diode VD3, three-terminal switch power supply E,
Primary coil N1, secondary coil N2 and feedback coil N3, inductance L, the electrochemical capacitor C3 both ends are connected to battery both ends；It is described
Primary coil N1 one end is connected to electrochemical capacitor C3 positive terminal, and the D that its other end is connected to three-terminal switch power supply E is extreme；Institute
State resistance R12 one end to be connected on the circuit that primary coil N1 is connected with electrochemical capacitor C3, its other end is connected with electric capacity C5, institute
The other end for stating electric capacity C5 connection resistance R12 ends is connected on the circuit that resistance R12 is connected with primary coil N1；The diode
VD1 anode is connected on the circuit that three-terminal switch power supply E is connected with primary coil N1, and negative electrode is connected to resistance R12 and electric capacity
On the circuit of C5 connections；Three-terminal switch power supply E S poles are connected with electrochemical capacitor C3 negative electrode；Described resistance R13 one end is connected to
Three-terminal switch power supply E C poles, its other end are connected with diode VD2 negative electrode；Feedback coil N3 one end is connected to diode
VD2 anode, its other end are connected with three-terminal switch power supply E S poles；The positive pole of the electrochemical capacitor C4 is connected to resistance R13
On the circuit being connected with three-terminal switch power supply E, negative pole is connected on the circuit that three-terminal switch power supply E is connected with feedback coil N3；
The secondary coil N2 is connected by magnetic core with primary coil N1 and feedback coil N3；The anode of the diode VD3 and secondary
Coil N2 one end is connected, and negative electrode is connected with inductance L, and the inductance L connection diodes VD3 other end is 5V voltage output ends；It is described
The other end ground connection at secondary coil N2 connection diode VD3 ends；The anode of the electrochemical capacitor C6 is connected to diode VD3 and electricity
On the circuit for feeling L connections, the anode of the electrochemical capacitor C7 is connected to 5V voltage output ends；The negative electrode of the electrochemical capacitor C6 and
Electrochemical capacitor C6 negative electrode common ground；The resistance R14 is connected in parallel on electrochemical capacitor C7 both ends；Electric capacity C8 one end is connected to feedback
On the circuit that coil N3 is connected with electrochemical capacitor C4, its other end is connected to one end of secondary coil N2 ground connection.
Further, three-terminal switch power supply E uses WS157 or WS106.
Further, sensor signal transmitting circuit includes amplifying circuit and filter circuit, the amplifying circuit and filtering
Circuit is connected, and the amplifying circuit is connected with pressure sensor, and the filter circuit is connected with microprocessor.
Further, amplifying circuit includes amplifier U1, amplifier U2, amplifier U3, amplifier U4, resistance R1, resistance
R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, the amplifier U1 positive input input for a signal
End；Amplifier U1 output end is connected with amplifier U3 output end, and the resistance R1, resistance R2 are sequentially connected in series in amplifier U1
On the circuit being connected with amplifier U3；The reverse input end of the amplifier U2 is a signal input part；Amplifier U2's is defeated
Go out end to be connected with amplifier U4 output end, the resistance R6, resistance R7 are sequentially connected in series to be connected in amplifier U2 with amplifier U4
Circuit on；Resistance R3, resistance R4, resistance R5 are sequentially connected in series, and the other end at the resistance R3 connections resistance R4 ends, which is connected to, to be put
On the circuit that big device U1 is connected with resistance R1；Amplifier U1 reverse input end is connected to the circuit that resistance R3 is connected with resistance R4
On；The other end at the resistance R5 connections resistance R4 ends is connected on the circuit that amplifier U2 is connected with resistance R6；Amplifier U2
Positive input be connected on the circuit that resistance R5 is connected with resistance R4；Amplifier U3 reverse input end is connected to resistance R1
On the circuit being connected with resistance R2；Amplifier U3 positive input is connected on the circuit that resistance R6 is connected with resistance R7；Put
On the circuit that the output end that big device U4 reverse input end is connected to amplifier U4 is connected with resistance R7；The amplifier U3's is defeated
Go out end to be connected with filter circuit.
Further, filter circuit includes resistance R8, resistance R9, resistance R10, resistance R11, amplifier U5, electric capacity C1, electricity
Hold C2, described resistance R8 one end is connected with amplifying circuit, and its other end is connected with resistance R9, resistance R9 connection resistance R8 ends it is another
One end is connected with amplifier U5 positive input；Electric capacity C2 one end is connected on the circuit that resistance R9 is connected with amplifier U5,
Its other end is grounded；Electric capacity C1 one end is connected on the circuit that resistance R8 is connected with resistance R9, and its other end is with amplifier U5's
Output end connects；Resistance R10 one end is grounded, and its other end is connected with amplifier U5 reverse input end；Resistance R11 one end connects
On the circuit that resistance R10 is connected with amplifier U5, its other end is connected on the circuit that electric capacity C1 is connected with amplifier U5；Institute
The output end for stating amplifier U5 is the output end of filter circuit.
Further, pressure sensor uses DATA-52 series sensors.
Further, detonation chain is detonated lined-cavity charge by pulse current.
The utility model compared with prior art, has the following advantages and advantages：
The utility model is avoided using larger sliding sleeve Opening pressure value, and the pressure in sleeve pipe is detected by pressure sensor
Power changes, and so as to open sliding sleeve by the lined-cavity charge that detonates, reduces the cost for opening sliding sleeve, reduces danger, improve
The chance of success that sliding sleeve is accurately opened.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, forms the one of the application
Part, the restriction to the utility model embodiment is not formed.In the accompanying drawings：
Fig. 1 is the block diagram of the utility model；
Fig. 2 is the utility model electric power management circuit structured flowchart；
Fig. 3 is the utility model electric power management circuit figure；
Fig. 4 is the utility model sensor signal transmitting circuit diagram.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, it is not intended as to restriction of the present utility model.
Embodiment 1
As shown in figure 1, the electric control system of sleeve pipe toe-end intelligence sliding sleeve, including the pressure sensor, quick being sequentially connected
Sensor signal transmission circuit, microprocessor, detonation chain, explosive cord, lined-cavity charge, in addition to be pressure sensor, sensitivity
Device signal transmitting circuit, microprocessor, the power supply of detonation chain power supply；The pressure sensor is used to detect wellbore fluid pressure
Change and pressure change is transformed into physical arrangement variable quantity；The sensor signal transmitting circuit is used for pressure sensor
Physical arrangement variable quantity is converted into data signal and is sent to microprocessor；The microprocessor is used to enter the data signal
Row filtering de-noising and signal extraction, wherein effective control command is interpreted to deliver to detonation chain；The detonation chain
Control command is delivered into lined-cavity charge by explosive cord, so as to detonation of shaped charges；The lined-cavity charge is used to trigger
Sliding sleeve is opened.
Sleeve pipe toe-end intelligence sliding sleeve in the utility model, including be sequentially connected first sleeve joint, electric pipe nipple, rise
Quick-fried pipe nipple, sliding-sleeve nipple and the second casing joint；
The detonation pipe nipple includes perforating bullet interior protection cylinder and perforating bullet outer protection cylinder, and the perforating bullet interior protection cylinder is set
On the inside of perforating bullet outer protection cylinder, it is provided with the cavity that is formed between perforating bullet interior protection cylinder and perforating bullet outer protection cylinder poly-
Can perforating bullet；
Sliding-sleeve nipple includes sliding sleeve outer barrel and sliding sleeve inner cylinder, and the sliding sleeve inner cylinder is arranged on the inside of sliding sleeve outer barrel, the cunning
Sliding sleeve is provided with the cavity that set outer barrel is formed with sliding sleeve inner cylinder；The sliding sleeve outer barrel is provided with the second pressure break hole, the sliding sleeve
Inner cylinder is provided with the 3rd pressure break hole, and the second pressure break hole and the 3rd pressure break hole site are relative；The is provided with the middle part of the sliding sleeve
Two pressure break holes；
Pressure sensor is provided with the electrically pipe nipple, the pressure sensor is connected with lined-cavity charge.
In the utility model, pressure sensor becomes the change transitions of fluid pressure in electric interior protection cylinder for physical arrangement
Change amount, lined-cavity charge can be detonated after receiving the information of the physical arrangement change of pressure sensor, lined-cavity charge detonation
Perforation is formed in loophole interior protection cylinder afterwards, the highly pressurised liquid in loophole interior protection cylinder is incorporated into loophole interior protection cylinder
In cavity between loophole outer protection cylinder, highly pressurised liquid is transferred to the end of sliding sleeve again, and highly pressurised liquid promotes sliding sleeve to the right
Motion, until the first pressure break hole, the second pressure break hole, the 3rd pressure break hole three alignment, sliding sleeve inner cylinder is connected with bottom, sleeve pipe toe
End sliding sleeve is just in open mode.The change of fluid pressure is controlled by fracturing unit truck in wherein electric interior protection cylinder.
Embodiment 2
As shown in Figures 2 to 4, power supply includes the battery that voltage output is 56V and the power management electricity that voltage output is 5V
Road, the electric power management circuit are connected with battery, and the microprocessor and detonation chain are respectively with being connected battery, the microprocessor
Device and pressure sensor are connected with electric power management circuit respectively.
Electric power management circuit includes the filter circuit, suppression circuit, rectifier filter circuit being sequentially connected, in addition to anti-
Current feed circuit, described feedback circuit one end are connected with rectifier filter circuit, and its other end is connected with suppression circuit.
Electric power management circuit include resistance R12, resistance R13, resistance R14, electrochemical capacitor C3, electrochemical capacitor C4, electric capacity C5,
Electrochemical capacitor C6, electrochemical capacitor C7, diode VD1, diode VD2, diode VD3, three-terminal switch power supply E, primary coil N1,
Secondary coil N2 and feedback coil N3, inductance L, the electrochemical capacitor C3 both ends are connected to battery both ends；The primary coil N1
One end is connected to electrochemical capacitor C3 positive terminal, and the D that its other end is connected to three-terminal switch power supply E is extreme；The resistance R12 mono-
End is connected on the circuit that primary coil N1 is connected with electrochemical capacitor C3, and its other end is connected with electric capacity C5, and the electric capacity C5 connects
The other end at connecting resistance R12 ends is connected on the circuit that resistance R12 is connected with primary coil N1；The anode of the diode VD1
It is connected on the circuit that three-terminal switch power supply E is connected with primary coil N1, negative electrode is connected to the line that resistance R12 is connected with electric capacity C5
Lu Shang；Three-terminal switch power supply E S poles are connected with electrochemical capacitor C3 negative electrode；Described resistance R13 one end is connected to three-terminal switch electricity
Source E C poles, its other end are connected with diode VD2 negative electrode；Feedback coil N3 one end is connected to diode VD2 anode, its
The other end is connected with three-terminal switch power supply E S poles；The positive pole of the electrochemical capacitor C4 is connected to resistance R13 and three-terminal switch electricity
On the circuit of source E connections, negative pole is connected on the circuit that three-terminal switch power supply E is connected with feedback coil N3；The secondary coil
N2 is connected by magnetic core with primary coil N1 and feedback coil N3；The anode of the diode VD3 connects with secondary coil N2 one end
Connect, negative electrode is connected with inductance L, and the inductance L connection diodes VD3 other end is 5V voltage output ends；The secondary coil N2 connects
Connect the other end ground connection at diode VD3 ends；The anode of the electrochemical capacitor C6 is connected to the line that diode VD3 is connected with inductance L
Lu Shang, the anode of the electrochemical capacitor C7 are connected to 5V voltage output ends；The negative electrode and electrochemical capacitor C6 of the electrochemical capacitor C6
Negative electrode common ground；The resistance R14 is connected in parallel on electrochemical capacitor C7 both ends；Electric capacity C8 one end is connected to feedback coil N3 and electricity
On the circuit for solving electric capacity C4 connections, its other end is connected to one end of secondary coil N2 ground connection.
Three-terminal switch power supply E uses WS157 or WS106.
56V battery provides required operating voltage to WS157 or WS106, from secondary coil by primary coil N1
The signal exported on N2, after diode VD7, electric capacity C4, inductance L and electric capacity C5 carry out filtering high-frequency rectifier, by control electricity
Stream add to control terminal C extremely on；The suppression circuit being made up of diode VD5, resistance R1 and electric capacity C2, can effectively it suppress in drain electrode
Peak-inverse voltage；When causing output voltage to decline for some reason, feedback coil N3 voltage and control terminal C electrode currents
Also decrease, and caused by inside WS157 or WS106 during error voltage rising, the duty of its internal comparator output
Than rising, output voltage is caused to increase by transistor and buck output circuit, so as to which regulated output voltage is in 5V, otherwise also
So.So as to ensure that the voltage supply of whole control system circuit is stable, the false triggering of detonation chain is prevented, sliding sleeve is improved and correctly beats
The success rate opened.
Sensor signal transmitting circuit includes amplifying circuit and filter circuit, and the amplifying circuit is connected with filter circuit,
The amplifying circuit is connected with pressure sensor, and the filter circuit is connected with microprocessor.
Amplifying circuit include amplifier U1, amplifier U2, amplifier U3, amplifier U4, resistance R1, resistance R2, resistance R3,
Resistance R4, resistance R5, resistance R6, resistance R7, the amplifier U1 positive input are a signal input part；Amplifier U1
Output end be connected with amplifier U3 output end, the resistance R1, resistance R2 are sequentially connected in series in amplifier U1 and amplifier U3
On the circuit of connection；The reverse input end of the amplifier U2 is a signal input part；Amplifier U2 output end and amplification
Device U4 output end connection, the resistance R6, resistance R7 are sequentially connected in series on the circuit being connected in amplifier U2 with amplifier U4；Electricity
Resistance R3, resistance R4, resistance R5 are sequentially connected in series, and the other end at the resistance R3 connections resistance R4 ends is connected to amplifier U1 and resistance
On the circuit of R1 connections；Amplifier U1 reverse input end is connected on the circuit that resistance R3 is connected with resistance R4；The resistance
The other end at R5 connection resistance R4 ends is connected on the circuit that amplifier U2 is connected with resistance R6；Amplifier U2 positive input
It is connected on the circuit that resistance R5 is connected with resistance R4；Amplifier U3 reverse input end is connected to resistance R1 and is connected with resistance R2
Circuit on；Amplifier U3 positive input is connected on the circuit that resistance R6 is connected with resistance R7；Amplifier U4's is reverse
On the circuit that the output end that input is connected to amplifier U4 is connected with resistance R7；The output end and filtered electrical of the amplifier U3
Road connects.
This amplifying circuit amplifies difference mode signal, suppression common mode signal.Intermediate node between two-stage circuit is accepted greatly
About half differential signal and the quantity of electric charge of common-mode signal sum, must ensure that this signal is within the working range of amplifier；When
When the gain of amplifying circuit sets very high, resistance R4 meeting very littles, it is meant that when differential voltage is very big, produced on resistance R4
Raw electric current also can be quite big, therefore the gain of amplifying circuit is set according to actual conditions.
Filter circuit includes resistance R8, resistance R9, resistance R10, resistance R11, amplifier U5, electric capacity C1, electric capacity C2, described
Resistance R8 one end is connected with amplifying circuit, and its other end is connected with resistance R9, and the other end at resistance R9 connection resistance R8 ends is with putting
Big device U5 positive input connection；Electric capacity C2 one end is connected on the circuit that resistance R9 is connected with amplifier U5, its other end
Ground connection；Electric capacity C1 one end is connected on the circuit that resistance R8 is connected with resistance R9, and the output end of its other end and amplifier U5 connects
Connect；Resistance R10 one end is grounded, and its other end is connected with amplifier U5 reverse input end；Resistance R11 one end is connected to resistance
On the circuit that R10 is connected with amplifier U5, its other end is connected on the circuit that electric capacity C1 is connected with amplifier U5；The amplification
Device U5 output end is the output end of filter circuit.
Filter circuit has introduced positive feedback and negative-feedback simultaneously, when resistance R8 signal frequency tends to 0, due to electric capacity C1
Reactance tend to be infinitely great, positive feedback is very weak；When resistance R8 signal frequency tends to infinity, because electric capacity C2 reactance becomes
When 0, resistance R9 tends to 0 with the electric capacity C2 voltage at node being connected, therefore, as long as positive feedback introducing is proper, with regard to that can make voltage
Multiplication factor numerical value increases, and will not produce self-oscillation because positive feedback is too strong again.
Pressure sensor uses DATA-52 series sensors.Microprocessor uses single-chip microcomputer STC89C52.
Detonation chain is detonated lined-cavity charge by pulse current.
Above-described embodiment, the purpose of this utility model, technical scheme and beneficial effect are entered
One step describes in detail, should be understood that and the foregoing is only specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, it is all within the spirit and principles of the utility model, any modification for being made, equally replace
Change, improve, should be included within the scope of protection of the utility model.
Claims (10)
1. the electric control system of sleeve pipe toe-end intelligence sliding sleeve, it is characterised in that including be sequentially connected pressure sensor, sensitivity
Device signal transmitting circuit, microprocessor, detonation chain, explosive cord, lined-cavity charge, in addition to be pressure sensor, sensor
Signal transmitting circuit, microprocessor, the power supply of detonation chain power supply；The pressure sensor is used to detect the change of wellbore fluid pressure
Change and pressure change is transformed into physical arrangement variable quantity；The sensor signal transmitting circuit is used for the thing of pressure sensor
Reason structure change amount is converted into data signal and is sent to microprocessor；The microprocessor is used to carry out the data signal
De-noising and signal extraction are filtered, wherein effective control command is interpreted to deliver to detonation chain；The detonation chain will
Control command delivers to lined-cavity charge by explosive cord, so as to detonation of shaped charges；The lined-cavity charge is used to trigger cunning
Set is opened.
2. the electric control system of sleeve pipe toe-end intelligence sliding sleeve according to claim 1, it is characterised in that the power supply bag
The battery that voltage output is 56V and the electric power management circuit that voltage output is 5V are included, the electric power management circuit is connected with battery,
Respectively with being connected battery, the microprocessor and pressure sensor are electric with power management respectively for the microprocessor and detonation chain
Road connects.
3. the electric control system of sleeve pipe toe-end intelligence sliding sleeve according to claim 2, it is characterised in that the power supply pipe
Reason circuit includes the filter circuit, suppression circuit, rectifier filter circuit being sequentially connected, in addition to feedback circuit, described anti-
Current feed circuit one end is connected with rectifier filter circuit, and its other end is connected with suppression circuit.
4. the electric control system of sleeve pipe toe-end intelligence sliding sleeve according to claim 2, it is characterised in that the power supply pipe
Managing circuit includes resistance R12, resistance R13, resistance R14, electrochemical capacitor C3, electrochemical capacitor C4, electric capacity C5, electrochemical capacitor C6, electricity
Solve electric capacity C7, diode VD1, diode VD2, diode VD3, three-terminal switch power supply E, primary coil N1, secondary coil N2 and
Feedback coil N3, inductance L, the electrochemical capacitor C3 both ends are connected to battery both ends；Described primary coil N1 one end is connected to electricity
Electric capacity C3 positive terminal is solved, the D that its other end is connected to three-terminal switch power supply E is extreme；Described resistance R12 one end is connected to primary
On the circuit that coil N1 is connected with electrochemical capacitor C3, its other end is connected with electric capacity C5, the electric capacity C5 connections resistance R12 ends
The other end is connected on the circuit that resistance R12 is connected with primary coil N1；The anode of the diode VD1 is connected to three-terminal switch
On the circuit that power supply E is connected with primary coil N1, negative electrode is connected on the circuit that resistance R12 is connected with electric capacity C5；Three-terminal switch
Power supply E S poles are connected with electrochemical capacitor C3 negative electrode；Described resistance R13 one end is connected to three-terminal switch power supply E C poles, and its is another
One end is connected with diode VD2 negative electrode；Feedback coil N3 one end is connected to diode VD2 anode, its other end and three ends
Switching Power Supply E S poles connection；The positive pole of the electrochemical capacitor C4 is connected to the circuit that resistance R13 is connected with three-terminal switch power supply E
On, negative pole is connected on the circuit that three-terminal switch power supply E is connected with feedback coil N3；The secondary coil N2 is by magnetic core and just
Level coil N1 connects with feedback coil N3；The anode of the diode VD3 is connected with secondary coil N2 one end, negative electrode and inductance L
Connection, the inductance L connection diodes VD3 other end is 5V voltage output ends；The secondary coil N2 connections diode VD3 ends
The other end is grounded；The anode of the electrochemical capacitor C6 is connected on the circuit that diode VD3 is connected with inductance L, the electrolysis electricity
The anode for holding C7 is connected to 5V voltage output ends；The negative electrode of the electrochemical capacitor C6 and electrochemical capacitor C6 negative electrode common ground；
The resistance R14 is connected in parallel on electrochemical capacitor C7 both ends；Electric capacity C8 one end is connected to what feedback coil N3 was connected with electrochemical capacitor C4
On circuit, its other end is connected to one end of secondary coil N2 ground connection.
5. the electric control system of sleeve pipe toe-end intelligence sliding sleeve according to claim 4, it is characterised in that open at three end
Powered-down source E uses WS157 or WS106.
6. the electric control system of sleeve pipe toe-end intelligence sliding sleeve according to claim 1, it is characterised in that the sensor
Signal transmitting circuit includes amplifying circuit and filter circuit, and the amplifying circuit is connected with filter circuit, the amplifying circuit with
Pressure sensor is connected, and the filter circuit is connected with microprocessor.
7. the electric control system of sleeve pipe toe-end intelligence sliding sleeve according to claim 6, it is characterised in that the amplification electricity
Road include amplifier U1, amplifier U2, amplifier U3, amplifier U4, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5,
Resistance R6, resistance R7, the amplifier U1 positive input are a signal input part；Amplifier U1 output end and amplification
Device U3 output end connection, the resistance R1, resistance R2 are sequentially connected in series on the circuit being connected in amplifier U1 with amplifier U3；Institute
The reverse input end for stating amplifier U2 is a signal input part；Amplifier U2 output end connects with amplifier U4 output end
Connect, the resistance R6, resistance R7 are sequentially connected in series on the circuit being connected in amplifier U2 with amplifier U4；Resistance R3, resistance R4, electricity
Resistance R5 is sequentially connected in series, and the other end at the resistance R3 connections resistance R4 ends is connected to the circuit that amplifier U1 is connected with resistance R1
On；Amplifier U1 reverse input end is connected on the circuit that resistance R3 is connected with resistance R4；The resistance R5 connection resistance R4
The other end at end is connected on the circuit that amplifier U2 is connected with resistance R6；Amplifier U2 positive input is connected to resistance R5
On the circuit being connected with resistance R4；Amplifier U3 reverse input end is connected on the circuit that resistance R1 is connected with resistance R2；Put
Big device U3 positive input is connected on the circuit that resistance R6 is connected with resistance R7；Amplifier U4 reverse input end is connected to
On the circuit that amplifier U4 output end is connected with resistance R7；The output end of the amplifier U3 is connected with filter circuit.
8. the electric control system of sleeve pipe toe-end intelligence sliding sleeve according to claim 6, it is characterised in that the filtered electrical
Road includes resistance R8, resistance R9, resistance R10, resistance R11, amplifier U5, electric capacity C1, electric capacity C2, and described resistance R8 one end is with putting
Big circuit connection, its other end are connected with resistance R9, and the other end at resistance R9 connection resistance R8 ends is positive defeated with amplifier U5's
Enter end connection；Electric capacity C2 one end is connected on the circuit that resistance R9 is connected with amplifier U5, its other end ground connection；Electric capacity C1 one end
It is connected on the circuit that resistance R8 is connected with resistance R9, its other end is connected with amplifier U5 output end；Resistance R10 mono- is terminated
Ground, its other end are connected with amplifier U5 reverse input end；Resistance R11 one end is connected to resistance R10 and is connected with amplifier U5
Circuit on, its other end is connected on the circuit that electric capacity C1 is connected with amplifier U5；The output end of the amplifier U5 is filter
The output end of wave circuit.
9. the electric control system of sleeve pipe toe-end intelligence sliding sleeve according to claim 1, it is characterised in that the pressure is quick
Sensor uses DATA-52 series sensors.
10. the electric control system of sleeve pipe toe-end intelligence sliding sleeve according to claim 1, it is characterised in that the detonation
Circuit is detonated lined-cavity charge by pulse current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720974217.1U CN207048726U (en) | 2017-08-07 | 2017-08-07 | The electric control system of sleeve pipe toe-end intelligence sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720974217.1U CN207048726U (en) | 2017-08-07 | 2017-08-07 | The electric control system of sleeve pipe toe-end intelligence sliding sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207048726U true CN207048726U (en) | 2018-02-27 |
Family
ID=61498344
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720974217.1U Expired - Fee Related CN207048726U (en) | 2017-08-07 | 2017-08-07 | The electric control system of sleeve pipe toe-end intelligence sliding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207048726U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605860A (en) * | 2021-09-10 | 2021-11-05 | 青岛理工大学 | Remote control toe end sliding sleeve opening system based on pressure pulse signals |
| CN118065820A (en) * | 2024-04-17 | 2024-05-24 | 大庆长垣能源科技有限公司 | Piezoelectric switch control toe end sliding sleeve based on precoding uniqueness identification |
-
2017
- 2017-08-07 CN CN201720974217.1U patent/CN207048726U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605860A (en) * | 2021-09-10 | 2021-11-05 | 青岛理工大学 | Remote control toe end sliding sleeve opening system based on pressure pulse signals |
| CN113605860B (en) * | 2021-09-10 | 2023-02-28 | 青岛理工大学 | Remote control toe end sliding sleeve opening system based on pressure pulse signals |
| CN118065820A (en) * | 2024-04-17 | 2024-05-24 | 大庆长垣能源科技有限公司 | Piezoelectric switch control toe end sliding sleeve based on precoding uniqueness identification |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180227 Termination date: 20180807 |