CN203559887U - Downhole electric detonator ignition control circuit for perforation - Google Patents
Downhole electric detonator ignition control circuit for perforation Download PDFInfo
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- CN203559887U CN203559887U CN201320753463.6U CN201320753463U CN203559887U CN 203559887 U CN203559887 U CN 203559887U CN 201320753463 U CN201320753463 U CN 201320753463U CN 203559887 U CN203559887 U CN 203559887U
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Abstract
The utility model discloses a downhole electric detonator ignition control circuit for perforation. The downhole electric detonator ignition control circuit comprises a wide-range input voltage-stabilized source circuit, a signal detecting processing circuit and a selective switch circuit. According to the wide-range input voltage-stabilized source circuit, when a ground system inputs 20V-40V direct currents to a downhole ignition control circuit through a single-core cable, after voltage stabilizing through the wide-range input voltage-stabilized source circuit, 10V and 5V direct currents are output, and electricity is provided for the signal detecting processing circuit and an ignition switch circuit. The signal detecting processing circuit receives an ignition control order from the ground system and controls connecting and disconnecting of the selective switch circuit according to the order, and detonating of an electric detonator is controlled. The selective switch circuit is used for being connected with the electric detonator. According to the downhole electric detonator ignition control circuit, circuit connecting during downhole electric detonator detonating can be achieved safely and reliably, meanwhile, the problem that the electric detonator is connected into a detonating circuit accidentally can be avoided, and under the extreme situation of detonating circuit short circuiting, the effect of ignition detonating circuit protection can be achieved.
Description
Technical field
The utility model relates to electric cap IGNITION CONTROL technical field under Clustering control perforated hole, Clustering control perforation is a kind ofly can in unconventional natural gas (shale gas etc.) exploitation, realize Perforating Techniques low-cost, high benefit, belongs to perforating oil gas well instrument field.
Background technology
In unconventional natural gas extraction, because shale gas reservoir is thin, reservoir is many and discontinuous, while utilizing conventional oil tube transmission perforation and cable transmission perforation, need to repeatedly remove perforating gun, there is the shortcomings such as workload is large, cost is high, and efficiency of construction is low, thereby need to a kind ofly can realize Oil/gas Well developing low-cost, high efficiency Perforating Techniques.Sub-clustering perforating technology arises at the historic moment under this background, this technology utilizes that single-core cable is disposable to be carried branched perforator to go into the well, complete that perforating gun pipe string is disposable goes into the well, repeatedly selective perforating is carried out in perforation layer position to down-hole different depth, guarantees to realize the oil and gas development technique objects such as segmenting perforating, pressure break.
Publication number is CN102704898A, and the Chinese patent literature that open day is on October 3rd, 2012 discloses a kind of coding type classification and published perforation instrument.Comprise the perforation unit being formed by perforating gun, detonator, detonator control system, and the multi-stage perforator unit, well logging ground-based system and the communication system that by cable, connect, multi-stage perforator unit is pressed after coded sequence stube cable, and centre is connected with communication system with well logging ground-based system by ground control system; Wherein the detonator control system of every perforation unit is to be connected to form by power circuit, pulse receiving circuit, MCU, electronic switch, electronic switch control circuit; Ground control system comprises D/A converter, the MCU being connected with D/A converter; Communication mode between ground control system and detonator control system is pulse signal.This instrument is controlled by the pulse switch of ground control system and detonator control system, and under the accurate prerequisite of definite down-hole state, notice programmable power supply is sent ignition signal, completes the perforation of this layer of position, and prepares the operation of lower one deck position.
But, the prior art that the above-mentioned patent documentation of take is representative, there is following defect in it:
1, in actual use, this coding type classification is published perforation instrument and cannot be realized and connect reliably down-hole electric cap, and electric cap is often because the unexpected conducting access point of circuit ignition circuit is ignited, and produces mistake perforation engineering accident.
2, electric cap is ignited after perforating gun, and perforating gun breaks and gushes working fluid, can cause short circuit.
Utility model content
The utility model is intended to for the existing defect of above-mentioned prior art and deficiency; a kind of down-hole electric cap ignition control circuit for perforation is provided; place in circuit when the utility model can be realized down-hole electric detonator initiation safely and reliably; can prevent that electric cap from, due to the unexpected conducting access of circuit detonation chain, also can play the effect of protection ignition and detonation circuit when the extreme case of detonation chain short circuit simultaneously.
The utility model is by adopting following technical proposals to realize:
A down-hole electric cap ignition control circuit for perforation, is characterized in that: comprise wide region input voltage-stabilized power supply circuit, signal detection treatment circuit and publish on-off circuit;
Wide region input voltage-stabilized power supply circuit, for inputting 20V～40V direct current by single-core cable to down-hole ignition control circuit when ground system, by wide region, input after voltage-stabilized power supply circuit voltage stabilizing, output 10V and 5V direct current, be signal detection treatment circuit and ignition switch circuit supply; Guarantee that it normally works;
Signal detection treatment circuit receives the IGNITION CONTROL order from ground system, and controls and publish conducting and the disconnection of on-off circuit according to instruction, and controls detonating of electric cap;
Publish on-off circuit for being connected with electric cap.
Described wide region input voltage-stabilized power supply circuit comprises five diode: D1, D2, D5, D6 and D7; Two resistance: R1 and R2; Four electric capacity: C1, C8, C9 and C10; Two cmos fet pipe: Q1 and Q10, its annexation is: D2 anode connects cable skin, and negative electrode connects R1 one end, R1 another termination R2 one end, the R2 other end connects respectively Q1 grid, C1 one end and D6 negative electrode, another termination cable core of C1 (), D6 anode connects Q10 grid and D1 negative electrode, and D1 anode connects D5 anode, D5 negative electrode connect cable core (), Q10 drain electrode connects R1 one end and C1 one end, another termination of C1 D7 negative electrode, D7 anode connect cable core (); Q1 source electrode connects Q10 drain electrode, and Q10 source electrode connects C8 one end, another termination cable core of C8 ().
Described signal detection treatment circuit comprises five resistance: R3, R4, R11, R12 and R13, two electric capacity: C3, C6, a diode D11, a triode Q6, two FET Q4 and Q5, a single-chip microcomputer U1, its annexation is: R4, R11, R13, C3 and Q6 form an amplifying circuit, for command signal is amplified, colelctor electrode by Q6 is exported, 5 pin of U1 are connected with the colelctor electrode of Q6, 1 pin of U1 connects the 5V power supply of described wide region input voltage-stabilized power supply circuit output, 8 pin connect cable core (), 7 pin connect one end of R3 and the grid of Q5, the 5V power supply of wide region input voltage-stabilized power supply circuit output described in another termination of R3, the 10V power supply of wide region input voltage-stabilized power supply circuit output described in a termination of R12, another termination Q5 drain electrode, D11 negative electrode, the grid of C6 one end and Q4, the source electrode of Q5 connects D11 anode, the C6 other end and Q4 source electrode and connect cable core ().
The described on-off circuit of publishing comprises: three resistance: R6, R8 and R10, and two capacitor C 5 and C7, a Zener diode D3, three CMOS pipes Q2, Q3, Q8, its annexation is: Q3 grid connects the PWM control end of signal detection treatment circuit; R10 mono-termination Q3 grid, another termination Q3 source electrode ground connection; The 10V power supply of wide region input voltage-stabilized power supply circuit output described in R8 mono-termination, another termination Q3 drain electrode; C5 mono-termination Q3 drain electrode, another termination Q8 grid, D3 negative electrode connects Q8 grid, and anode connects Q2 drain electrode; C7 mono-termination Q8 grid, another termination Q8 source electrode; The drain electrode of Q8 connects one end of electric cap; The high level control end of R6 mono-termination signal processing control circuit, the grid of another termination Q2, the drain electrode of Q2 connects the source electrode of Q8, the source ground of Q2.
Compared with prior art, the beneficial effect that the utility model reaches is as follows:
1, wide region input voltage-stabilized power supply circuit of the present utility model, ground system is inputted 20V～40V direct current by single-core cable to down-hole ignition control circuit, by wide region, input after voltage-stabilized power supply circuit voltage stabilizing, output 10V and 5V direct current, supply with signal detection treatment circuit and publish on-off circuit.Now down-hole ignition control circuit is operated in low-pressure state, and the identification of signal detection treatment circuit, from the various command of ground system, is controlled conducting and the cut-off of igniting on-off circuit according to instruction, thereby guarantees conducting and the cut-off of electric cap and igniting power supply circuits; After electric cap conducting, need on single-core cable, supply with the wide region direct current of down-hole ignition control circuit 80V～300V to can open quick-fried electric cap, now control circuit is operated in high pressure conditions.
Between the cable core of single-core cable and cable skin, access power supply, the high tension voltage detonator igniting no matter input power is still greater than 250V in the low-voltage of 20-40V is opened when quick-fried, the output voltage of mu balanced circuit is all the time in safe range, can export 5V and 10V voltage reliable and stablely, supply with down-hole ignition control circuit work, meet the special requirement of sub-clustering perforated hole down-firing control circuit.
2, signal detection treatment circuit of the present utility model, ground system between the cable core of single-core cable and cable skin for down-hole ignition control circuit provides command signal, the order that ground system sends is comprised of address command and control instruction, signal detection treatment circuit receives after the order of transmitting through cable, first be confirmed whether it is the machine address, to receive control instruction, and to publishing on-off circuit, carry out gating and cut-off according to command signal, with this, control conducting and the disconnection of electric cap and igniting power supply circuits.If not the machine address, it is not done to any processing.So just realize the dual-use function of address lookup and igniting, thereby realized the object that the down-hole ignition control circuit of particular address is lighted a fire.
3, the on-off circuit of publishing of the present utility model, adopt two-stage series connection switch, electric cap is connected with priming supply, two-stage switch adopts different control modes conducting, one-level switch adopts high level voltage to control conducting, and another grade of switch adopts pwm pulse width modulated ripple to control and realize interrupted conduction mode.This mode realizes on the one hand circuit and under order is controlled, can reliably detonator be accessed to detonation chain and ignite, and because two-stage switch adopts different control modes, has stopped electric cap and has surprisingly accessed detonation chain in addition.Due to detonator, connecting circuit is interrupted conducting, also can prevent from occurring after cap sensitive the extreme case of detonation chain short circuit, can realize the object of protection ignition and detonation circuit.
4, in sum; place in circuit when the utility model can be realized down-hole electric detonator initiation safely and reliably; can prevent that electric cap from, due to the unexpected conducting access of circuit detonation chain, also can play the effect of protection ignition and detonation circuit when the extreme case of detonation chain short circuit simultaneously.
Accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments, the utility model is described in further detail, wherein:
Fig. 1 is with the down-hole electric cap ignition control circuit schematic diagram of publishing on-off circuit;
Fig. 2 is the down-hole electric cap ignition control circuit schematic diagram with signal detection treatment circuit;
Fig. 3 is the down-hole electric cap ignition control circuit schematic diagram with wide region input voltage-stabilized power supply circuit.
Mark in figure:
1, wide region input voltage-stabilized power supply circuit, 2, signal detection treatment circuit, 3, publish on-off circuit.
The specific embodiment
With reference to Figure of description 1, a better embodiment of the present utility model is: the on-off circuit 3 of publishing of the present utility model is by resistance R 6, R8, R10, capacitor C 5, C7, and Zener diode D3, FET Q2, Q3, Q8 form.Its annexation is: Q3 grid connects the PWM control end of signal detection control circuit; R10 mono-termination Q3 grid, another termination Q3 source electrode ground connection; R8 mono-termination 10V power supply, another termination Q3 drain electrode; C5 mono-termination Q3 drain electrode, another termination Q8 grid, D3 negative electrode connects Q8 grid, and anode connects Q2 drain electrode; C7 mono-termination Q8 grid, another termination Q8 source electrode; The drain electrode of Q8 connects one end of electric cap; The high level control end of R6 mono-termination signal processing control circuit, the grid of another termination Q2, the drain electrode of Q2 connects the source electrode of Q8, the source ground of Q2.
In this example, can select voltage-stabilized power supply circuit common in this area and signal detection treatment circuit 2 to realize, and with publish on-off circuit 3 and coordinate.
Meanwhile, between the cable core of single-core cable and cable skin, access power supply, after wide region input voltage-stabilized power supply circuit 1, output 10V direct current is supplied with and is published on-off circuit 3, to guarantee that it normally works.From the control signal of signal detection treatment circuit 2, comprise two kinds of pwm control signal and high-level control signal, at signal detection treatment circuit 2, recognize after the ignition order of the machine address, to first export a high level and go to control Q2 conducting, then export a pwm pulse width modulated ripple and control Q3 and Q8 conducting, now, the drain electrode of Q8 just with cable core () connect, electric cap has accessed in igniting power supply circuits.Now, from accessing the direct current of 80V～300V between cable core and cable skin, electric cap can detonate.
With reference to Figure of description 2, another better embodiment of the present utility model is: signal detection treatment circuit 2 described in the utility model is by resistance R 3, R4, R11, R12, R13, capacitor C 3, C6, diode D11, triode Q6, FET Q4, Q5, single-chip microcomputer U1 forms.R4, R11, R13, C3 and Q6 form an amplifying circuit, for command signal is amplified, colelctor electrode by Q6 is exported, and 5 pin of U1 are connected with the colelctor electrode of Q6, and 1 pin of U1 connects 5V power supply, 8 pin connect cable core (), 7 pin connect one end of R3 and the grid of Q5, another termination 5V power supply of R3, a termination 10V power supply of R12, the grid of another termination Q5 drain electrode, D11 negative electrode, C6 one end and Q4, the source electrode of Q5 connect D11 anode, the C6 other end and Q4 source electrode and connect cable core ().
In this example, can select voltage-stabilized power supply circuit common in this area and publish on-off circuit 3 and realize, and coordinate with signal detection treatment circuit 2.
Command-control signal from ground control system is inputted by the base stage of triode Q6 after a capacitance, after the amplifying circuit being comprised of R4, R11, R13, C3 and Q6 amplifies, by Q6 colelctor electrode, exported, enter 5 pin of U1, by U1, identify and process, and go to control conducting and the disconnection of publishing on-off circuit 3 by 2 pin and two control signals of 3 pin output of U1.By the control signal of 7 pin outputs, removed to control the on-off circuit being formed by Q5, Q4 and R3, R12, C6, D11.When ground control system output be inquire address order time, 7 pin will be exported a control signal, by Q5, Q6 conducting, now querying command will be linked into next stage control circuit and carry out address lookup; When ground system send be ignition control signal time, 2 pin by U1 and 3 pin are exported to a control signal and go to control and publish on-off circuit 3 conductings, thereby electric cap is lighted a fire.So just realize the dual-use function of address lookup and igniting, thereby realized the object that the down-hole ignition control circuit of particular address is lighted a fire.
With reference to Figure of description 3, a better embodiment more of the present utility model is: wide region input voltage-stabilized power supply circuit 1 comprises 5 diode D1, D2, D5, D6, D7; Two resistance R 1 and R2; Four capacitor C 1, C8, C9, C10; 2 cmos fet pipe Q1, Q10.Its annexation is: D2 anode connects cable skin, and negative electrode connects R1 one end, R1 another termination R2 one end, another termination of R2 Q1 grid, C1 one end and D6 negative electrode.Another termination cable core of C1 (), D6 anode connects Q10 grid and D1 negative electrode, D1 anode connects D5 anode, D5 negative electrode connect cable core ().Q10 drain electrode connects R1 one end and C1 one end, another termination of C1 D7 negative electrode, D7 anode connect cable core (); Q1 source electrode connects Q10 drain electrode, and Q10 source electrode connects C8 one end, another termination cable core of C8 ().
In this example, can select signal detection treatment circuit common in this area 2 and publish on-off circuit 3 and realize, and coordinating with wide region input voltage-stabilized power supply circuit 1.
The utility model accesses power supply between the cable core of single-core cable and cable skin, when low-voltage DC to 1 input 20V～40V, by D2 step-down, D1, D6 voltage stabilizing, respectively from FET Q1, the source electrode of Q10 is exported 5V and 10V DC voltage reliable and stablely, supply with signal detection treatment circuit 2 and publish on-off circuit 3, now down-hole ignition control circuit is operated in low-pressure state, 2 identifications of signal detection treatment circuit are from the various command of ground system, according to instruction, control conducting and the cut-off of igniting on-off circuit, thereby guarantee conducting and the cut-off of electric cap and igniting power supply circuits, after electric cap conducting, need on single-core cable, supply with the wide region direct current of down-hole ignition control circuit 80V～300V to can open quick-fried electric cap, now control circuit is operated in high pressure conditions, now, C1 has played important handing over every straight-through, the command signal of low-voltage alternating-current can be identified and be processed by this electric capacity entering signal Check processing circuit 2, and the DC voltage of high pressure can not pass through, and with this, reaches the object of protection subsequent conditioning circuit.Therefore, this voltage-stabilized power supply circuit can adapt to the wide-range voltage of 20V～300V, with assurance down-hole ignition control circuit, can signal be identified and be processed in operating on low voltage mode, can under high pressure, ignition voltage be flowed to electric cap and realize reliable normal igniting again simultaneously.
Embodiment 4
As preferred forms of the present utility model, be: it comprises wide region input voltage-stabilized power supply circuit 1, signal detection treatment circuit 2 and publishes on-off circuit 3;
Wide region input voltage-stabilized power supply circuit 1, for inputting 20V～40V direct current by single-core cable to down-hole ignition control circuit when ground system, by wide region, input after voltage-stabilized power supply circuit 1 voltage stabilizing, output 10V and 5V direct current, be signal detection treatment circuit 2 and ignition switch circuit supply; Guarantee that it normally works;
The IGNITION CONTROL order that signal detection treatment circuit 2 receives from ground system, and control and publish conducting and the disconnection of on-off circuit 3 according to instruction, and control detonating of electric cap;
Publish on-off circuit 3 for being connected with electric cap.
Described wide region input voltage-stabilized power supply circuit 1 comprises five diode: D1, D2, D5, D6 and D7; Two resistance: R1 and R2; Four electric capacity: C1, C8, C9 and C10; Two cmos fet pipe: Q1 and Q10, its annexation is: D2 anode connects cable skin, and negative electrode connects R1 one end, R1 another termination R2 one end, the R2 other end connects respectively Q1 grid, C1 one end and D6 negative electrode, another termination cable core of C1 (), D6 anode connects Q10 grid and D1 negative electrode, and D1 anode connects D5 anode, D5 negative electrode connect cable core (), Q10 drain electrode connects R1 one end and C1 one end, another termination of C1 D7 negative electrode, D7 anode connect cable core (); Q1 source electrode connects Q10 drain electrode, and Q10 source electrode connects C8 one end, another termination cable core of C8 ().
Described signal detection treatment circuit 2 comprises five resistance: R3, R4, R11, R12 and R13, two electric capacity: C3, C6, a diode D11, a triode Q6, two FET Q4 and Q5, a single-chip microcomputer U1, its annexation is: R4, R11, R13, C3 and Q6 form an amplifying circuit, for command signal is amplified, colelctor electrode by Q6 is exported, 5 pin of U1 are connected with the colelctor electrode of Q6, 1 pin of U1 connects the 5V power supply of described wide region input voltage-stabilized power supply circuit 1 output, 8 pin connect cable core (), 7 pin connect one end of R3 and the grid of Q5, the 5V power supply of wide region input voltage-stabilized power supply circuit 1 output described in another termination of R3, the 10V power supply of wide region input voltage-stabilized power supply circuit 1 output described in a termination of R12, another termination Q5 drain electrode, D11 negative electrode, the grid of C6 one end and Q4, the source electrode of Q5 connects D11 anode, the C6 other end and Q4 source electrode and connect cable core ().
The described on-off circuit 3 of publishing comprises: three resistance: R6, R8 and R10, and two capacitor C 5 and C7, a Zener diode D3, three CMOS pipes Q2, Q3, Q8, its annexation is: Q3 grid connects the PWM control end of signal detection treatment circuit 2; R10 mono-termination Q3 grid, another termination Q3 source electrode ground connection; The 10V power supply of wide region input voltage-stabilized power supply circuit 1 output described in R8 mono-termination, another termination Q3 drain electrode; C5 mono-termination Q3 drain electrode, another termination Q8 grid, D3 negative electrode connects Q8 grid, and anode connects Q2 drain electrode; C7 mono-termination Q8 grid, another termination Q8 source electrode; The drain electrode of Q8 connects one end of electric cap; The high level control end of R6 mono-termination signal processing control circuit, the grid of another termination Q2, the drain electrode of Q2 connects the source electrode of Q8, the source ground of Q2.
Claims (4)
1. for a down-hole electric cap ignition control circuit for perforation, it is characterized in that: comprise wide region input voltage-stabilized power supply circuit (1), signal detection treatment circuit (2) and publish on-off circuit (3);
Wide region input voltage-stabilized power supply circuit (1), for inputting 20V～40V direct current by single-core cable to down-hole ignition control circuit when ground system, by wide region, input after voltage-stabilized power supply circuit (1) voltage stabilizing, output 10V and 5V direct current are signal detection treatment circuit (2) and ignition switch circuit supply;
Signal detection treatment circuit (2) receives the IGNITION CONTROL order from ground system, and controls and publish conducting and the disconnection of on-off circuit (3) according to instruction, and controls detonating of electric cap;
Publish on-off circuit (3) for being connected with electric cap.
2. a kind of down-hole electric cap ignition control circuit for perforation according to claim 1, is characterized in that: described wide region input voltage-stabilized power supply circuit (1) comprises five diode: D1, D2, D5, D6 and D7; Two resistance: R1 and R2; Four electric capacity: C1, C8, C9 and C10; Two cmos fet pipe: Q1 and Q10, its annexation is: D2 anode connects cable skin, and negative electrode connects R1 one end, R1 another termination R2 one end, the R2 other end connects respectively Q1 grid, C1 one end and D6 negative electrode, another termination cable core of C1, D6 anode connects Q10 grid and D1 negative electrode, and D1 anode connects D5 anode, D5 negative electrode connects cable core, Q10 drain electrode connects R1 one end and C1 one end, another termination of C1 D7 negative electrode, and D7 anode connects cable core; Q1 source electrode connects Q10 drain electrode, and Q10 source electrode connects C8 one end, another termination cable core of C8.
3. a kind of down-hole electric cap ignition control circuit for perforation according to claim 1, it is characterized in that: described signal detection treatment circuit (2) comprises five resistance: R3, R4, R11, R12 and R13, two electric capacity: C3, C6, a diode D11, a triode Q6, two FET Q4 and Q5, a single-chip microcomputer U1, its annexation is: R4, R11, R13, C3 and Q6 form an amplifying circuit, for command signal is amplified, colelctor electrode by Q6 is exported, 5 pin of U1 are connected with the colelctor electrode of Q6, 1 pin of U1 connects the 5V power supply of described wide region input voltage-stabilized power supply circuit (1) output, 8 pin connect cable core, 7 pin connect one end of R3 and the grid of Q5, the 5V power supply of wide region input voltage-stabilized power supply circuit (1) output described in another termination of R3, the 10V power supply of wide region input voltage-stabilized power supply circuit (1) output described in a termination of R12, another termination Q5 drain electrode, D11 negative electrode, the grid of C6 one end and Q4, the source electrode of Q5 connects D11 anode, the C6 other end and Q4 source electrode also connect cable core.
4. a kind of down-hole electric cap ignition control circuit for perforation according to claim 1, it is characterized in that: the described on-off circuit (3) of publishing comprising: three resistance: R6, R8 and R10, two capacitor C 5 and C7, a Zener diode D3, three CMOS manage Q2, Q3, Q8, and its annexation is: Q3 grid connects the PWM control end of signal detection treatment circuit (2); R10 mono-termination Q3 grid, another termination Q3 source electrode ground connection; The 10V power supply of wide region input voltage-stabilized power supply circuit (1) output described in R8 mono-termination, another termination Q3 drain electrode; C5 mono-termination Q3 drain electrode, another termination Q8 grid, D3 negative electrode connects Q8 grid, and anode connects Q2 drain electrode; C7 mono-termination Q8 grid, another termination Q8 source electrode; The drain electrode of Q8 connects one end of electric cap; The high level control end of R6 mono-termination signal processing control circuit, the grid of another termination Q2, the drain electrode of Q2 connects the source electrode of Q8, the source ground of Q2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320753463.6U CN203559887U (en) | 2013-11-26 | 2013-11-26 | Downhole electric detonator ignition control circuit for perforation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320753463.6U CN203559887U (en) | 2013-11-26 | 2013-11-26 | Downhole electric detonator ignition control circuit for perforation |
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| Publication Number | Publication Date |
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| CN203559887U true CN203559887U (en) | 2014-04-23 |
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| CN201320753463.6U Expired - Fee Related CN203559887U (en) | 2013-11-26 | 2013-11-26 | Downhole electric detonator ignition control circuit for perforation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196528A (en) * | 2014-08-26 | 2014-12-10 | 北京市华建机械制造有限公司 | Side wall coring gun control device |
| CN105604528A (en) * | 2015-12-23 | 2016-05-25 | 重庆航天工业公司 | Selecting and sending control system for oil and gas well |
| CN112922568A (en) * | 2021-01-18 | 2021-06-08 | 中石化石油工程技术服务有限公司 | Portable perforation ignition system |
-
2013
- 2013-11-26 CN CN201320753463.6U patent/CN203559887U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196528A (en) * | 2014-08-26 | 2014-12-10 | 北京市华建机械制造有限公司 | Side wall coring gun control device |
| CN105604528A (en) * | 2015-12-23 | 2016-05-25 | 重庆航天工业公司 | Selecting and sending control system for oil and gas well |
| CN105604528B (en) * | 2015-12-23 | 2018-06-19 | 重庆航天工业有限公司 | A kind of oil/gas well is with publishing control system |
| CN112922568A (en) * | 2021-01-18 | 2021-06-08 | 中石化石油工程技术服务有限公司 | Portable perforation ignition system |
| CN112922568B (en) * | 2021-01-18 | 2023-04-07 | 中石化石油工程技术服务有限公司 | Portable perforation ignition system |
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