CN208982022U - Sub-clustering perforation monitors system - Google Patents
Sub-clustering perforation monitors system Download PDFInfo
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- CN208982022U CN208982022U CN201821781298.4U CN201821781298U CN208982022U CN 208982022 U CN208982022 U CN 208982022U CN 201821781298 U CN201821781298 U CN 201821781298U CN 208982022 U CN208982022 U CN 208982022U
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Abstract
The utility model discloses a kind of sub-clustering perforations to monitor system, including controlling chip, power supply module, voltage collection circuit, voltage follower circuit, relay, bleeder circuit, current-limiting protection circuit and detection resistance, the control chip respectively with voltage collection circuit, voltage follower circuit is connected with relay, the voltage follower circuit is connect by detection resistance with downhole pipeline, the current-limiting protection circuit is arranged between voltage follower circuit and detection resistance, the relay includes the voltage input end and voltage output end for connecting respectively with initiating instrument and downhole pipeline, the bleeder circuit is connected to the voltage output end of relay, the voltage collection circuit is connect with detection resistance and bleeder circuit respectively.The utility model is capable of the break-make situation of real-time monitoring detonation circuit, and is able to record and with the detonation voltage and current of graphical feedback electric cap, thus achieve the purpose that accurate judgement electric cap whether normal detonation.
Description
Technical field
The utility model belongs to the cable transfer perforation field (WCP) more particularly to a kind of sub-clustering perforation monitoring system, is applicable in
The switching situation of route is ignited in monitoring in the pressure-controlled sub-clustering perforating job of shale gas exploitation.
Background technique
During shale gas exploitation, due to the needs of horizontal well completion technology and fracturing reform stratum, usually using pressure
Control formula sub-clustering perforating technology completes perforating job.The technique need to carry out cable pumping, specific operation process are as follows: such as in horizontal well
Shown in Fig. 1, downhole pipeline includes magnetic locator 10, electric cap 11, selection switch 18, diode 12 and bridge plug igniter 13, and two
Pole pipe is connect with electric cap, and magnetic locator is by selecting switch to connect with bridge plug igniter or diode.It is first that downhole pipeline is defeated
It send to target zone, reuses the quick-fried instrument 14 of cable connection and magnetic locator, be powered after connection and ignite bridge plug igniter, set bridge
Plug forms temporary plugging, then upper lifting pipe string to predetermined position, is powered and ignites electric cap, realizes first perforating gun perforation.So
It is above mentioned afterwards to lower cluster position, is powered and ignites the second electric detonator, realize second perforating gun perforation, be sequentially completed remaining perforation
Rifle perforation.
Wherein, for pressure-controlled sub-clustering perforating technology in perforating job, circuit will appear the failures such as short circuit or open circuit once in a while, this
It will lead to and be unable to judge accurately electric cap whether normal detonation, be easy to happen the feelings for increasing labor intensity because of scene erroneous judgement
Condition.Therefore the break-make situation of real-time monitoring detonation circuit, in order to which whether normal detonation seems accurate judgement electric cap very must
It wants.
Utility model content
Utility model aims to solve the above-mentioned problems in the prior art, provide a kind of sub-clustering perforation monitoring
System, the utility model are capable of the break-make situation of real-time monitoring detonation circuit, and are able to record and with graphical feedback electric cap
Detonate voltage and current, thus achieve the purpose that accurate judgement electric cap whether normal detonation.
To achieve the above object, the technical solution adopted in the utility model is as follows:
A kind of sub-clustering perforation monitoring system, it is characterised in that: including controlling chip, power supply module, voltage collection circuit, electricity
Voltage follower circuit, relay, bleeder circuit, current-limiting protection circuit and detection resistance, the power supply module be respectively control chip,
Voltage collection circuit and voltage follower circuit power supply, the control chip respectively with voltage collection circuit, voltage follower circuit and
Relay connection, the voltage follower circuit are connect with downhole pipeline by detection resistance for downhole pipeline input current,
The current-limiting protection circuit is arranged between voltage follower circuit and detection resistance for limiting the output electricity of voltage follower circuit
Stream, the relay includes the voltage input end and voltage output end for connecting respectively with initiating instrument and downhole pipeline, described
Bleeder circuit is connected to the voltage output end of relay, and the voltage collection circuit connects with detection resistance and bleeder circuit respectively
It connects, the voltage collection circuit is used to distinguish the voltage at acquisition testing resistance both ends and the Current Voltage of bleeder circuit.
The bleeder circuit includes input, output end and test side, and input terminal is connect with relay voltage output end, defeated
Outlet is connect with power supply module, and test side is connect with voltage collection circuit.
The current-limiting protection circuit includes current limliting input terminal and current limliting output end, and current limliting input terminal and current limliting output end are distinguished
It is connect with voltage follower circuit and detection resistance.
The voltage follower circuit includes anode and cathode, and the anode of voltage follower circuit passes through detection resistance and downhole tubular
Series winding connects, and the cathode of voltage follower circuit is connect with oil/gas well.
The anode and cathode of the voltage output end of the relay are respectively used to connect with downhole pipeline and oil/gas well.
The power supply module includes 220V alternating current power inlet, 24V power supply adaptor and and positive 12V adapter and negative
The input terminal of 12V adapter, 24V power supply adaptor is connect with 220V alternating current power inlet, and output end is adapted to positive 12V respectively
Device is connected with negative 12V adapter；The power supply module passes through positive 12V adapter and negative 12V adapter respectively as control chip, electricity
Press Acquisition Circuit and voltage follower circuit power supply.
The sub-clustering perforation monitoring system further includes cabinet, the control chip, power supply module, voltage collection circuit, electricity
Voltage follower circuit, relay, bleeder circuit, current-limiting protection circuit and detection resistance are installed in cabinet.
Protection board is fixedly installed in the cabinet, the control chip, power supply module, voltage collection circuit, voltage are defeated
Circuit, relay, bleeder circuit, current-limiting protection circuit and detection resistance are respectively positioned below protection board out；It is set on the protection board
The high input voltage connector and relay electricity for being equipped with the power switch connecting with power module, being connect with relay voltage input terminal
The high-voltage output connector of pressure output end connection and the diode polarity detection connecting with voltage follower circuit anode and cathode connect
Head；Detection resistance between current-limiting protection circuit and diode polarity detection tabs, relay by high input voltage connector with
Initiating instrument connection, voltage follower circuit are used to pass through diode polarity detection tabs and underground when exporting electric current to downhole pipeline
Pipe string is connected with oil/gas well, and relay is used to connect by high-voltage output connector with downhole pipeline and oil/gas well in detonation.
Using utility model has the advantages that
1, the utility model mainly realizes that two parts function, first part's function are by control chip, voltage acquisition electricity
Road, voltage follower circuit and detection resistance cooperation are monitored the diode in the detonation circuit before detonation, specifically with electricity
Voltage follower circuit is by detection resistance to downhole pipeline conveying electric current and by the ohmically voltage of voltage collection circuit acquisition testing
Partial pressure monitors whether the diode in downhole pipeline achievees the purpose that real-time monitoring detonation circuit break-make situation online.Second
Partial function is the prison by controlling the cooperation of chip, voltage collection circuit, relay and bleeder circuit to electric detonator initiation when
It surveys, the detonation voltage and current of electric cap is specifically acquired by bleeder circuit to reach accurate judgement electricity with voltage collection circuit
Detonator whether the purpose of proper detonation.Compared with prior art, the utility model is capable of the on-off feelings of accurate judgement detonation circuit
The ignition situation of condition and electric cap, avoid there is a situation where because scene erroneous judgement due to occurs increase labor intensity.In addition, passing through limit
Stream protection circuit can limit the current value that voltage follower circuit is exported to downhole pipeline, avoid leading because exporting super-high-current value
It causes that safety accident occurs.
2, the utility model will control chip, power supply module, voltage collection circuit, voltage follower circuit, relay, partial pressure
Circuit, current-limiting protection circuit and detection resistance are installed in below the intracorporal protection board of case, are not only convenient for carrying, but also are conducive to being
System carries out effective protection.And be then conducive to by high input voltage connector, diode polarity detection tabs and high-voltage output connector existing
The quick connection of cable when the monitoring of field.In addition, voltage follower circuit is used to pass through diode when exporting electric current to downhole pipeline
Check up polarity connector is connect with downhole pipeline and oil/gas well, and relay is used to pass through high-voltage output connector and downhole tubular in detonation
String is connected with oil/gas well, which connect using two groups of connectors with downhole pipeline, so that voltage follower circuit is to downhole tubular
It is to disconnect between initiating instrument and the electric cap of downhole pipeline when string output electric current；And when igniting electric cap, and make voltage
It is to disconnect between output circuit and downhole pipeline.This makes it possible to effectively prevent causing electric cap to be detonated because of maloperation,
Be conducive to promote safety in utilization.
Detailed description of the invention
Fig. 1 is the circuit diagram of downhole pipeline in the prior art；
Fig. 2 is the principles of the present invention block diagram；
Fig. 3 is the structural schematic diagram of the utility model；
Fig. 4 is to ignite preceding the utility model to the observation circuit figure of detonation circuit；
Observation circuit figure of the utility model to electric cap when Fig. 5 is ignition；
Figure label are as follows: 1,220V alternating current power inlet, 2,24V adapter, 3, positive 12V adapter, 4, negative 12V adaptation
Device, 5, voltage collection circuit, 6, voltage follower circuit, 7, current-limiting protection circuit, 8, detection resistance, 9, downhole pipeline, 10, magnetic it is fixed
Position device, 11, electric cap, 12, diode, 13, bridge plug igniter, 14, initiating instrument, 15, relay, 16, bleeder circuit, 17, oil
Gas well, 18, selection switch, 19, control chip, 20, high input voltage connector, 21, high-voltage output connector, 22, diode polarity inspection
Survey connector, 23, cabinet.
Specific embodiment
The utility model discloses a kind of sub-clustering perforations to monitor system, including control chip 19, power supply module, voltage acquisition
Circuit 5, voltage follower circuit 6, relay 15, bleeder circuit 16, current-limiting protection circuit 7 and detection resistance 8, the power supply module
It respectively controls chip 19, voltage collection circuit 5 and voltage follower circuit 6 to power, the control chip 19 is adopted with voltage respectively
Collector 5, voltage follower circuit 6 and relay 15 connect, and the voltage follower circuit 6 passes through detection resistance 8 and downhole pipeline 9
Connection for 9 input current of downhole pipeline, the setting of current-limiting protection circuit 7 voltage follower circuit 6 and detection resistance 8 it
Between for limiting the output electric current of voltage follower circuit 6, the relay 15 include for respectively with initiating instrument 14 and downhole tubular
The voltage input end and voltage output end of 9 connection of string, the bleeder circuit 16 is connected to the voltage output end of relay 15, described
Voltage collection circuit 5 is connect with detection resistance 8 and bleeder circuit 16 respectively, and the voltage collection circuit 5 is for acquisition inspection respectively
The voltage at 8 both ends of measuring resistance and Current Voltage (voltage and detonation electricity when electric cap 11 detonates of bleeder circuit 16
Stream).
In the utility model, the control chip 19 uses Stm32f103 chip, and the bleeder circuit 16 includes input
End, output end and test side, input terminal are connect with 15 voltage output end of relay, the circuit board number in output end and power supply module
It connects to word, test side is connect with voltage collection circuit 5.When work, voltage collection circuit 5 acquires bleeder circuit by test side
Current Voltage in 16.The current-limiting protection circuit 7 includes current limliting input terminal and current limliting output end, and current limliting input terminal and current limliting are defeated
Outlet is connect with voltage follower circuit 6 and detection resistance 8 respectively, for limiting output of the voltage follower circuit 6 to downhole pipeline 9
Electric current.
In the utility model, the voltage follower circuit 6 includes that anode and cathode, the anode of voltage follower circuit 6 pass through
Detection resistance 8 is connect with downhole pipeline 9, and the cathode of voltage follower circuit 6 is connect with oil/gas well 17, oil/gas well 17 and downhole pipeline
9 are in contact.The anode and cathode of the voltage output end of the relay 15 are respectively used to connect with downhole pipeline 9 and oil/gas well 17
It connects.Wherein, in voltage follower circuit 6 by detection resistance 8 to 9 out-put supply of downhole pipeline when, the voltage output of relay 15
It is to disconnect between end and downhole pipeline 9, and when being connected between the voltage output end of relay 15 and downhole pipeline 9, shows
Electric cap 11 will be ignited, is to disconnect between voltage follower circuit 6 and downhole pipeline 9 at this time.
In the utility model, the power supply module includes 220V alternating current power inlet 1,24V power supply adaptor and and just
12V adapter 3 and negative 12V adapter 4, the input terminal of 24V power supply adaptor are connect with 220V alternating current power inlet 1, output
End is connect with positive 12V adapter 3 and negative 12V adapter 4 respectively；The power supply module passes through positive 12V adapter 3 respectively and bears
12V adapter 4 is that control chip 19, voltage collection circuit 5 and voltage follower circuit 6 are powered.Specific power supply process is to pass through
220V alternating current power inlet 1 connects 220V AC power source, and alternating current is converted to 220V alternating current by 24V power supply adaptor
24V direct current, 24V adapter 2 power to positive 12V adapter 3 and negative 12V adapter 4, by 24V direct current be converted to+12V ,-
12V DC electricity is system power supply.
In the utility model, the sub-clustering perforation monitoring system further includes cabinet 23, the control chip 19, power supply mould
Block, voltage collection circuit 5, voltage follower circuit 6, relay 15, bleeder circuit 16, current-limiting protection circuit 7 and detection resistance 8 are equal
It is mounted in cabinet 23.Protection board, the control chip 19, power supply module, voltage acquisition are fixedly installed in the cabinet 23
Circuit 5, voltage follower circuit 6, relay 15, bleeder circuit 16, current-limiting protection circuit 7 and detection resistance 8 are respectively positioned on protection board
Lower section；The height for being provided with the power switch connecting with power module on the protection board, being connect with 15 voltage input end of relay
Pressure input adapter 20, the high-voltage output connector 21 that is connect with 15 voltage output end of relay and positive with voltage follower circuit 6
The diode polarity detection tabs 22 connected with cathode；Detection resistance 8 is located at current-limiting protection circuit 7 and connects with diode polarity detection
Between first 22, relay 15 is connect by high input voltage connector 20 with initiating instrument 14, and voltage follower circuit 6 is for downhole tubular
It is connect by diode polarity detection tabs 22 with downhole pipeline 9 and oil/gas well 17 when 9 output electric current of string, relay 15 is used for
It is connect by high-voltage output connector 21 with downhole pipeline 9 and oil/gas well 17 when detonation.
The utility model is used cooperatively with host computer in actual use comprising to igniting in downhole pipeline 9 before igniting
It is specific as follows to the monitoring of the detonation voltage and current of electric cap 11 when the monitoring and ignition of circuit:
1, the monitoring before igniting to detonation circuit in downhole pipeline 9
First passing through diode polarity detection tabs 22 connects voltage follower circuit 6 by detection resistance 8 and downhole pipeline 9
It is logical, and relay 15 and downhole pipeline 9 are disconnected, guarantee the safety of downhole tubular device.Voltage is controlled by control chip 19 after connection
The voltage that output circuit 6 is gradually increased since OV, and this voltage is passed to downhole pipeline 9 by detection resistance 8, then pass through electricity
Pressure Acquisition Circuit 5 monitors and calculates the electric current that 8 both ends of detection resistance pass through electric cap 11, in which:
A, if being less than+5mA by the electric current of electric cap 11, output voltage is increased by 0.1 V by voltage follower circuit 6,
And so on reach 12V until calculating to the output voltage that electric current reaches+5mA or voltage follower circuit 6.A voltage if it exists
Electric current can be made to reach+5mA, then it represents that 12 polarity of diode is anode in downhole pipeline 9.
B, if being greater than -5mA by the electric current of electric cap 11, output voltage is reduced 0.1 V by voltage follower circuit 6, such as
This is reciprocal until calculating reaches -12V to the output voltage that electric current reaches -5mA or voltage follower circuit 6.A voltage if it exists
Electric current can be made to reach -5mA, then it represents that 12 polarity of diode is cathode.
C, if 6 output voltage of voltage follower circuit is passed to downhole pipeline 9 to calculate when 6V ± 0.3V(-6V ± 0.3V)
Electric current reaches 5mA(-5mA), then it represents that pipe string line short；If 6 output voltage of voltage follower circuit simultaneously meet be 7V ±
The electric current that incoming downhole pipeline 9 is calculated when 0.3V reaches 5mA, and the electric current that when -7V ± 0.3V calculates incoming downhole pipeline 9 reaches -
5mA, then it represents that positive and negative diode 12 is online simultaneously.
2, it is detonated the monitoring of voltage and current when ignition to electric cap 11
It first disconnects voltage follower circuit 6 and downhole pipeline 9, then relay 15 and underground is made by high-voltage output connector 21
Pipe string 9 is connected to, and initiating instrument 14 is operated after connection by high pressure (250V-400V) and is passed to downhole pipeline 9, at this time voltage collection circuit 5
Using on bleeder circuit 16 high pressure partial pressure and initiation current, after acquisition by host computer real-time rendering ignite process electric current,
Voltage curve, and curve will be drawn automatically and saved.Ground according to the curve i.e. can be determined whether to ignite successfully.
Claims (8)
1. a kind of sub-clustering perforation monitors system, it is characterised in that: including controlling chip (19), power supply module, voltage collection circuit
(5), voltage follower circuit (6), relay (15), bleeder circuit (16), current-limiting protection circuit (7) and detection resistance (8), it is described
Power supply module is respectively to control chip (19), voltage collection circuit (5) and voltage follower circuit (6) power supply, the control chip
(19) it is connect respectively with voltage collection circuit (5), voltage follower circuit (6) and relay (15), the voltage follower circuit (6)
It is connect with downhole pipeline (9) by detection resistance (8) for downhole pipeline (9) input current, the current-limiting protection circuit (7)
Output electric current for limiting voltage follower circuit (6) is set between voltage follower circuit (6) and detection resistance (8), it is described
Relay (15) includes the voltage input end and voltage output end for connecting respectively with initiating instrument (14) and downhole pipeline (9),
The bleeder circuit (16) is connected to the voltage output end of relay (15), and the voltage collection circuit (5) is electric with detection respectively
(8) and bleeder circuit (16) connection are hindered, the voltage collection circuit (5) is used to distinguish the voltage at acquisition testing resistance (8) both ends
The Current Voltage of partial pressure and bleeder circuit (16).
2. sub-clustering perforation as described in claim 1 monitors system, it is characterised in that: the bleeder circuit (16) includes input
End, output end and test side, input terminal are connect with relay (15) voltage output end, and output end is connect with power supply module, detection
End is connect with voltage collection circuit (5).
3. sub-clustering perforation as described in claim 1 monitors system, it is characterised in that: the current-limiting protection circuit (7) includes limit
Flow input terminal and current limliting output end, current limliting input terminal and current limliting output end respectively with voltage follower circuit (6) and detection resistance (8)
Connection.
4. sub-clustering perforation as described in claim 1 monitors system, it is characterised in that: the voltage follower circuit (6) includes just
The anode of pole and cathode, voltage follower circuit (6) is connect by detection resistance (8) with downhole pipeline (9), voltage follower circuit
(6) cathode is connect with oil/gas well (17).
5. sub-clustering perforation as described in claim 1 monitors system, it is characterised in that: the voltage output end of the relay (15)
Anode and cathode be respectively used to connect with downhole pipeline (9) and oil/gas well (17).
6. sub-clustering perforation as described in claim 1 monitors system, it is characterised in that: the power supply module includes 220V alternating current
Source connector (1), 24V power supply adaptor and and positive 12V adapter (3) and negative 12V adapter (4), 24V power supply adaptor it is defeated
Enter end to connect with 220V alternating current power inlet (1), output end connects with positive 12V adapter (3) and negative 12V adapter (4) respectively
It connects；The power supply module passes through positive 12V adapter (3) and negative 12V adapter (4) respectively as control chip (19), voltage acquisition
Circuit (5) and voltage follower circuit (6) power supply.
7. the sub-clustering perforation as described in any one of claim 1-6 monitors system, it is characterised in that: the sub-clustering perforation prison
Examining system further includes cabinet (23), the control chip (19), power supply module, voltage collection circuit (5), voltage follower circuit
(6), relay (15), bleeder circuit (16), current-limiting protection circuit (7) and detection resistance (8) are installed in cabinet (23).
8. sub-clustering perforation as claimed in claim 7 monitors system, it is characterised in that: be fixedly installed guarantor in the cabinet (23)
Backplate, the control chip (19), voltage collection circuit (5), voltage follower circuit (6), relay (15), are divided power supply module
Volt circuit (16), current-limiting protection circuit (7) and detection resistance (8) are respectively positioned below protection board；Be provided on the protection board with
The power switch of power module connection, the high input voltage connector (20) and relay being connect with relay (15) voltage input end
(15) voltage output end connection high-voltage output connector (21) and with voltage follower circuit (6) anode and cathode connect two
Pole pipe Check up polarity connector (22)；Detection resistance (8) be located at current-limiting protection circuit (7) and diode polarity detection tabs (22) it
Between, relay (15) is connect by high input voltage connector (20) with initiating instrument (14), and voltage follower circuit (6) is for underground
It is connect by diode polarity detection tabs (22) with downhole pipeline (9) and oil/gas well (17) when pipe string (9) exports electric current, relay
Device (15) is used to connect by high-voltage output connector (21) with downhole pipeline (9) and oil/gas well (17) in detonation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821781298.4U CN208982022U (en) | 2018-10-31 | 2018-10-31 | Sub-clustering perforation monitors system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821781298.4U CN208982022U (en) | 2018-10-31 | 2018-10-31 | Sub-clustering perforation monitors system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208982022U true CN208982022U (en) | 2019-06-14 |
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ID=66789750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821781298.4U Active CN208982022U (en) | 2018-10-31 | 2018-10-31 | Sub-clustering perforation monitors system |
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| CN (1) | CN208982022U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946305A (en) * | 2020-09-21 | 2020-11-17 | 成都若克菲斯科技有限公司 | Multi-stage selective-firing perforating system for oil-gas well perforation |
| CN114945796A (en) * | 2019-11-21 | 2022-08-26 | 狩猎巨人公司 | Addressable switch with detonator detection and detonator resistance measurement |
-
2018
- 2018-10-31 CN CN201821781298.4U patent/CN208982022U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114945796A (en) * | 2019-11-21 | 2022-08-26 | 狩猎巨人公司 | Addressable switch with detonator detection and detonator resistance measurement |
| CN111946305A (en) * | 2020-09-21 | 2020-11-17 | 成都若克菲斯科技有限公司 | Multi-stage selective-firing perforating system for oil-gas well perforation |
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