CN103590793B - For the signal detection treatment circuit of perforation ignition control circuit - Google Patents
For the signal detection treatment circuit of perforation ignition control circuit Download PDFInfo
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- CN103590793B CN103590793B CN201310605350.6A CN201310605350A CN103590793B CN 103590793 B CN103590793 B CN 103590793B CN 201310605350 A CN201310605350 A CN 201310605350A CN 103590793 B CN103590793 B CN 103590793B
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Abstract
The invention discloses a kind of signal detection treatment circuit for perforation ignition control circuit, comprise: R4, R11, R13, C3 and Q6 forms an amplifying circuit, exported by the colelctor electrode of Q6, 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 that described in another termination of R3, wide region input voltage-stabilized power supply circuit exports, the 10V power supply that described in one termination of R12, wide region input voltage-stabilized power supply circuit exports, another termination Q5 drains, 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.Present invention achieves the dual-use function of address lookup and igniting, thus achieve the object that the down-hole ignition control circuit of particular address is lighted a fire.
Description
Technical field
The present invention relates to Clustering control perforation downhole electric detonator IGNITION CONTROL technical field, Clustering control perforation is the Perforating Techniques that one can realize low cost, high benefit in Unconventional forage (shale gas etc.) exploitation, belongs to perforating oil gas well instrument field.
Background technology
In Unconventional forage exploitation, because shale gas reservoir is thin, reservoir is many and discontinuous, when utilizing conventional oil tube transmission perforation and cable transmission perforation, need repeatedly to remove perforating gun, there is the shortcomings such as workload is large, cost is high, and efficiency of construction is low, thus need one can realize Oil/gas Well developing low-cost, high efficiency Perforating Techniques.Sub-clustering perforating technology arises at the historic moment within this context, this technology utilizes disposable the conveying by branched perforator of single-core cable to go into the well, complete that perforation casing string is disposable goes into the well, repeatedly selective perforating is carried out to the perforation layer position of down-hole different depth, guarantees to realize the oil and gas development such as segmenting perforating, pressure break technique object.
Publication number is CN102704898A, and publication date is that the Chinese patent literature on October 3rd, 2012 discloses a kind of coding type classification and publishes perforation instrument.Comprise the perforation unit be made up of perforating gun, detonator, detonator control system, and by multi-stage perforator unit, well logging ground-based system and communication system that cable connects, after multi-stage perforator unit presses coded sequence stube cable, centre is connected with well logging ground-based system and communication system by ground control system; The detonator control system wherein often propping up perforation unit is 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 be 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, is determining under the accurate prerequisite of down-hole state, and ignition signal sent by notice programmable power supply, completes the perforation of this layer of position, and prepares the operation of lower one deck position.
But, the prior art being representative with above-mentioned patent document, there is following defect in it:
1, in actual use, this coding type classification is published perforation instrument and cannot be realized reliably connecting downhole electric detonator, and electric cap is often ignited due to the unexpected conducting access point ignition circuit of circuit, produces perforation engineering accident by mistake.
2, after perforating gun ignited by electric cap, perforating gun breaks and gushes working fluid, can cause short circuit.
3, there is no ripe signal detection treatment circuit in prior art, the dual-use function of address lookup and igniting can not be realized, therefore cannot realize the object that the down-hole ignition control circuit of particular address is lighted a fire yet.
Summary of the invention
The present invention is intended to for the defect existing for above-mentioned prior art and deficiency, a kind of signal detection treatment circuit for perforation ignition control circuit is provided, present invention achieves the dual-use function of address lookup and igniting, thus achieve the object that the down-hole ignition control circuit of particular address is lighted a fire.
The present invention realizes by adopting following technical proposals:
A kind of signal detection treatment circuit for perforation ignition control circuit, it is characterized in that: comprise five resistance: R3, R4, R11, R12 and R13, two electric capacity: C3 and 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 forms an amplifying circuit, for amplifying command signal, exported by the colelctor electrode of Q6, 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 that described in another termination of R3, wide region input voltage-stabilized power supply circuit exports, the 10V power supply that described in one termination of R12, wide region input voltage-stabilized power supply circuit exports, another termination Q5 drains, 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 ().
Compared with prior art, the beneficial effect that reaches of the present invention is as follows:
Signal detection treatment circuit of the present invention, ground system between the cable core and cable skin of single-core cable for down-hole ignition control circuit provides command signal, the order that ground system sends is made up of address command and control instruction, signal detection treatment circuit receives after the order that cable transmits, first be confirmed whether it is the machine address, receive control instruction, and carry out gating and cut-off according to command signal to publishing on-off circuit, conducting and the disconnection of electric cap and igniting power supply circuits is controlled with this.Then any process is not done to it if not the machine address.So just achieve the dual-use function of address lookup and igniting, thus the object that realization is lighted a fire to the down-hole ignition control circuit of particular address.
Apply the present invention in downhole electric detonator ignition control circuit; place in circuit when downhole electric detonator is detonated can be realized safely and reliably; electric cap can be prevented simultaneously due to circuit unexpected conducting access detonation chain, also can play the effect of protection ignition and detonation circuit when the extreme case of detonation chain short circuit.
Accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments, the present invention is described in further detail, wherein:
Fig. 1 is the downhole electric detonator ignition control circuit schematic diagram with signal detection treatment circuit;
Mark in figure:
1, wide region input voltage-stabilized power supply circuit, 2, signal detection treatment circuit, 3, publish on-off circuit.
Detailed description of the invention
Embodiment 1
With reference to Figure of description 1, preferred forms of the present invention is: signal detection treatment circuit 2 of the present invention is by resistance R3, R4, R11, R12, R13, and electric capacity C3 and C6, diode D11, triode Q6, FET Q4, Q5, single-chip microcomputer U1 forms.R4, R11, R13, C3 and Q6 form an amplifying circuit, for amplifying command signal, exported by the colelctor electrode of Q6,5 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 ().
Embodiment 2
Apply the present invention in downhole electric detonator ignition control circuit, this circuit 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, after the voltage stabilizing of wide region input voltage-stabilized power supply circuit 1, export 10V and 5V direct current, for signal detection treatment circuit 2 and ignition switch circuit are powered; Ensure that it normally works;
Signal detection treatment circuit 2 receives the IGNITION CONTROL order from ground system, and controls conducting and the disconnection of publishing on-off circuit 3 according to instruction, and controls 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 diodes: 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, another termination R2 one end of R1, the R2 other end connects Q1 grid, C1 one end and D6 negative electrode respectively, 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 connect R1 one end and C1 one end, another termination D7 negative electrode of C1, 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 and 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 forms an amplifying circuit, for amplifying command signal, exported by the colelctor electrode of Q6, 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 that described in another termination of R3, wide region input voltage-stabilized power supply circuit 1 exports, the 10V power supply that described in one termination of R12, wide region input voltage-stabilized power supply circuit 1 exports, another termination Q5 drains, 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 ().
Described on-off circuit 3 of publishing comprises: three resistance: R6, R8 and R10, two electric capacity C5 and C7, a Zener diode D3, three CMOS tube 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 that described in R8 mono-termination, wide region input voltage-stabilized power supply circuit 1 exports, another termination Q3 drains; C5 mono-termination Q3 drains, another termination Q8 grid, and 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 (1)
1. the signal detection treatment circuit for perforation ignition control circuit, it is characterized in that: comprise five resistance: R3, R4, R11, R12 and R13, two electric capacity: C3 and C6, a diode D11, a triode Q6, two FET Q4 and Q5 and single-chip microcomputer U1, its annexation is: R4, R11, R13, C3 and Q6 forms an amplifying circuit, for amplifying command signal, exported by the colelctor electrode of Q6, 5 pin of U1 are connected with the colelctor electrode of Q6, 1 pin of U1 connects the 5V power supply that wide region input voltage-stabilized power supply circuit (1) exports, 8 pin connect cable core, 7 pin connect one end of R3 and the grid of Q5, the 5V power supply that described in another termination of R3, wide region input voltage-stabilized power supply circuit (1) exports, the 10V power supply that described in one termination of R12, wide region input voltage-stabilized power supply circuit (1) exports, another termination Q5 drains, 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.
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| CN201310605350.6A CN103590793B (en) | 2013-11-26 | 2013-11-26 | For the signal detection treatment circuit of perforation ignition control circuit |
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| CN201310605350.6A CN103590793B (en) | 2013-11-26 | 2013-11-26 | For the signal detection treatment circuit of perforation ignition control circuit |
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| CN103590793A CN103590793A (en) | 2014-02-19 |
| CN103590793B true CN103590793B (en) | 2016-03-16 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5531164A (en) * | 1995-05-10 | 1996-07-02 | Titan Specialties, Inc. | Select fire gun assembly and electronic module for underground jet perforating using resistive blasting caps |
| US5700969A (en) * | 1995-05-10 | 1997-12-23 | Titan Specialties, Inc. | Underground jet perforating using resistive blasting caps |
| CN102075093A (en) * | 2010-12-13 | 2011-05-25 | 山东精久科技有限公司 | Automatic high-precision voltage-stabilizing output circuit with wide-range input voltage in wide range |
| CN201867442U (en) * | 2010-07-02 | 2011-06-15 | 上海电机系统节能工程技术研究中心有限公司 | Wide load current measurement controller |
| CN203716944U (en) * | 2013-11-26 | 2014-07-16 | 中国石油集团川庆钻探工程有限公司 | Signal detection processing circuit for perforation ignition control circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7066261B2 (en) * | 2004-01-08 | 2006-06-27 | Halliburton Energy Services, Inc. | Perforating system and method |
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2013
- 2013-11-26 CN CN201310605350.6A patent/CN103590793B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5531164A (en) * | 1995-05-10 | 1996-07-02 | Titan Specialties, Inc. | Select fire gun assembly and electronic module for underground jet perforating using resistive blasting caps |
| US5700969A (en) * | 1995-05-10 | 1997-12-23 | Titan Specialties, Inc. | Underground jet perforating using resistive blasting caps |
| CN201867442U (en) * | 2010-07-02 | 2011-06-15 | 上海电机系统节能工程技术研究中心有限公司 | Wide load current measurement controller |
| CN102075093A (en) * | 2010-12-13 | 2011-05-25 | 山东精久科技有限公司 | Automatic high-precision voltage-stabilizing output circuit with wide-range input voltage in wide range |
| CN203716944U (en) * | 2013-11-26 | 2014-07-16 | 中国石油集团川庆钻探工程有限公司 | Signal detection processing circuit for perforation ignition control circuit |
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| CN103590793A (en) | 2014-02-19 |
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Effective date of registration: 20200915 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: The 1 section of No. 3 company Chuanqing Drilling Technology Information Office Chenghua District Green Road 610051 Chengdu City, Sichuan Province Patentee before: CNPC Chuanqing Drilling Engineering Co.,Ltd. |