CN103701319B - For the wide scope input voltage-stabilized power supply circuit of circuit for downhole perforation ignition control circuit - Google Patents
For the wide scope input voltage-stabilized power supply circuit of circuit for downhole perforation ignition control circuit Download PDFInfo
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Abstract
The invention discloses a kind of wide scope input voltage-stabilized power supply circuit for circuit for downhole perforation ignition control circuit, including five diodes：D1, D2, D5, D6 and D7；Two resistance：R1 and R2；Four electric capacity：C1, C8, C9 and C10；Two cmos fet pipes：Q1 and Q10, its annexation is：D2 anodes connect cable skin, negative electrode connects R1 one end, another termination R2 one end of R1, the R2 other ends connect Q1 grids, C1 one end and D6 negative electrodes, another termination cable cores of C1 respectively, D6 anodes connect Q10 grids and D1 negative electrodes, D1 anodes connect D5 anodes, and D5 negative electrodes connect cable core, and Q10 drain electrodes connect R1 one end and C1 one end, another termination D7 negative electrodes of C1, D7 anodes connect cable core；Q1 source electrodes connect Q10 drain electrodes, and Q10 source electrodes connect C8 one end, another termination cable cores of C8.The output voltage of the present invention in safety range, can export 5V and 10V voltages all the time reliable and stablely, and supply down-hole ignition control circuit work meets the special requirement of sub-clustering perforated hole down-firing control circuit.
Description
Technical field
The present invention relates to Clustering control perforation downhole electric detonator IGNITION CONTROL technical field, Clustering control perforation is a kind of energy
Enough in Unconventional gas（Shale gas etc.）Low cost, the Perforating Techniques of high benefit are realized in exploitation, is belonged to Oil/gas Well and is penetrated
Hole instrument field.
Background technology
In Unconventional gas exploitation, as shale gas reservoir is thin, reservoir is more and discontinuous, using conventional tubing transmission
When perforation and cable transmission perforation, need repeatedly to remove perforating gun, have that workload is big, high cost, the shortcomings of low construction efficiency,
So that one kind can realize Oil/gas Well developing low-cost, efficient Perforating Techniques.Sub-clustering perforating technology is in the back of the body
Arise at the historic moment under scape, the conveying of branched perforator is disposably gone into the well by the technology using single-core cable, completes perforation casing string once
Property is gone into the well, and carries out multiple selective perforating to the perforation layer position of down-hole different depth, it is ensured that realize the oil gas such as segmenting perforating, pressure break
Development technology purpose.
Publication No. CN102704898A, publication date are that the Chinese patent literature on October 3rd, 2012 discloses a kind of volume
Perforation instrument is published in code formula classification.Including the perforation unit being made up of perforating gun, detonator, detonator control system, and pass through cable
The multi-stage perforator unit of connection, well logging ground-based system and communication system, after multi-stage perforator unit presses coded sequence connection cable, in
Between be connected with well logging ground-based system and communication system by ground control system；The detonator control system of wherein every perforation unit
It is made up of power circuit, pulse receiving circuit, MCU, electrical switch, electronic switch control circuit connection；Ground control system
Including D/A converter, the MCU being connected with D/A converter；Communication mode between ground control system and detonator control system
For pulse signal.The instrument passes through the pulse switch control of ground control system and detonator control system, it is determined that down-hole state
On the premise of correct, notify that programmable power supply sends ignition signal, complete the perforation of this layer of position, and prepare the work of next layer of position
Industry.
But, the prior art with above-mentioned patent documentation as representative, there is following defect in which：
1st, in actual use, the coding type classification is published perforation instrument and cannot realize reliably connecting downhole electric detonator, and
Electric cap Jing is often ignited as circuit surprisingly turns on access firing circuit, produces perforation engineering accident by mistake.
2nd, after electric cap ignites perforating gun, perforating gun rupture pours in well liquid, can cause short circuit.
3rd, existing downhole electric detonator control circuit does not have special mu balanced circuit, and which cannot ensure that output voltage exists all the time
In safety range, it is impossible to export 5V and 10V voltages, supply down-hole ignition control circuit work, so as to expire reliable and stablely
The special requirement of sufficient sub-clustering perforated hole down-firing control circuit.
The content of the invention
It is contemplated that for defect and deficiency existing for above-mentioned prior art, there is provided a kind of to light a fire for downhole perforation
The wide scope input voltage-stabilized power supply circuit of control circuit, the present invention access power supply, nothing between the cable core and cable skin of single-core cable
By input power 20-40V low-voltage be also greater than 250V high tension voltage detonator igniting open quick-fried when, mu balanced circuit
Output voltage in safety range, can export 5V and 10V voltages all the time reliable and stablely, supply down-hole ignition control circuit work
Make, meet the special requirement of sub-clustering perforated hole down-firing control circuit.
The present invention is by being realized using following technical proposals：
A kind of wide scope input voltage-stabilized power supply circuit for circuit for downhole perforation ignition control circuit, it is characterised in that：Including
Five diodes：D1, D2, D5, D6 and D7；Two resistance：R1 and R2；Four electric capacity：C1, C8, C9 and C10；Two CMOS fields
Effect pipe：Q1 and Q10, its annexation is：D2 anodes connect cable skin, and negative electrode meets R1 one end, another termination R2 one end of R1, R2
The other end connects Q1 grids, C9 one end and D6 negative electrodes, another termination cable cores of C9 respectively（Ground）, D6 anodes connect Q10 grids and D1 negative electrodes,
D1 anodes connect D5 anodes, and D5 negative electrodes connect cable core（Ground）, Q1 drain electrode connect R1 one end and C1 one end, another termination D7 negative electrodes of C1, D7 are positive
Pole connects cable core（Ground）；Q1 source electrodes connect Q10 drain electrodes, and Q10 source electrodes connect C8 one end, another termination cable cores of C8（Ground）.
Compared with prior art, what the present invention was reached has the beneficial effect that：
The wide scope input voltage-stabilized power supply circuit of the present invention, ground system is by single-core cable to down-hole ignition control circuit
Input 20V～40V unidirectional currents, after wide scope is input into voltage-stabilized power supply circuit voltage stabilizing, export 10V and 5V unidirectional currents, supply letter
Number detection process circuit and publish on-off circuit.Now down-hole ignition control circuit is operated in low-pressure state, signal detection process
Circuit recognizes the various orders from ground system, according to the conducting and cut-off of instruction control ignition switch circuit, so as to ensure
The conducting of electric cap and igniting power supply circuits and cut-off；After electric cap conducting, need down-hole point fire control is supplied on single-core cable
To open quick-fried electric cap, now control circuit is operated in high pressure conditions to the wide scope unidirectional current of circuit 80V～300V processed.
Access power supply between the cable core and cable skin of single-core cable, no matter input power is in the low-voltage of 20-40V or big
When the high tension voltage detonator igniting of 250V opens quick-fried, the output voltage of mu balanced circuit, can be reliably steady all the time in safety range
Surely 5V and 10V voltages are exported, supply down-hole ignition control circuit work meets the spy of sub-clustering perforated hole down-firing control circuit
It is different to need.
Description of the drawings
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 that voltage-stabilized power supply circuit is input into wide scope.
Labelling in figure：
1st, wide scope input voltage-stabilized power supply circuit, 2, signal detection process circuit, 3, publish on-off circuit.
Specific embodiment
Embodiment 1
With reference to Figure of description 1, the preferred forms of the present invention are：Wide scope input voltage-stabilized power supply circuit 1 includes 5
Diode D1, D2, D5, D6, D7；Two resistance R1 and R2；Four electric capacity C1, C8, C9, C10；2 cmos fet pipe Q1,
Q10.Its annexation is：D2 anodes connect cable skin, and negative electrode connects R1 one end, another termination R2 one end of R1, R2 other ends difference
Connect Q1 grids, C9 one end and D6 negative electrodes, another termination cable cores of C9（Ground）, D6 anodes connect Q10 grids and D1 negative electrodes, and D1 anodes meet D5
Anode, D5 negative electrodes connect cable core（Ground）.Q1 drain electrodes connect R1 one end and C1 one end, and another termination D7 negative electrodes of C1, D7 anodes connect cable core
（Ground）；Q1 source electrodes connect Q10 drain electrodes, and Q10 source electrodes connect C8 one end, another termination cable cores of C8（Ground）.
The present invention accesses power supply between the cable core and cable skin of single-core cable, when the low-voltage direct to 1 input 20V～40V
When electric, by D2 blood pressure lowerings, D1, D6 voltage stabilizing, respectively from the source electrode of field effect transistor Q1, Q10 it is reliable and stable export 5V and 10V direct currents
Voltage, supplies signal detection process circuit 2 and publishes on-off circuit 3, and now down-hole ignition control circuit is operated in low-pressure state,
Signal detection process circuit 2 recognizes the various orders from ground system, according to instruction control ignition switch circuit conducting with
Cut-off, so as to ensure the conducting and cut-off of electric cap and igniting power supply circuits；After electric cap conducting, needs are supplied on single-core cable
To down-hole ignition control circuit 80V～300V wide scope unidirectional current so that quick-fried electric cap can be opened, now control circuit is operated in
High pressure conditions, now, C1 has played important separated by direct communication, and the command signal of low-voltage alternating-current can be entered by the electric capacity
Signal detection process circuit 2 is identified and processes, and the DC voltage of high pressure can not pass through, and reaches protection subsequent conditioning circuit with this
Purpose.Therefore, the voltage-stabilized power supply circuit can adapt to the wide-range voltage of 20V～300V, to ensure down-hole IGNITION CONTROL electricity
Road can be identified to signal and be processed in operating on low voltage mode, while and can be conveyed to ignition voltage under high pressure
Electric cap realizes reliable normal igniting.
Embodiment 2
Apply the present invention to downhole electric detonator ignition control circuit, the circuit includes wide scope input voltage-stabilized power supply circuit
1st, signal detection process circuit 2 and publish on-off circuit 3；
Wide scope is input into voltage-stabilized power supply circuit 1, for passing through single-core cable to down-hole ignition control circuit when ground system
Input 20V～40V unidirectional currents, after wide scope is input into 1 voltage stabilizing of voltage-stabilized power supply circuit, exports 10V and 5V unidirectional currents, are signal
Detection process circuit 2 and ignition switch circuit are powered；Ensure its normal work；
Signal detection process circuit 2 receives the IGNITION CONTROL order from ground system, and is published out according to instruction control
The conducting on powered-down road 3 and disconnection, and control the detonation of electric cap；
On-off circuit 3 is published for being connected with electric cap.
The wide scope input voltage-stabilized power supply circuit 1 includes five diodes：D1, D2, D5, D6 and D7；Two resistance：R1
And R2；Four electric capacity：C1, C8, C9 and C10；Two cmos fet pipes：Q1 and Q10, its annexation is：D2 anodes connect electricity
Cable cable skin, negative electrode connect R1 one end, and another termination R2 one end of R1, the R2 other ends connect Q1 grids, C9 one end and D6 negative electrodes respectively, and C9 is another
One termination cable core（Ground）, D6 anodes connect Q10 grids and D1 negative electrodes, and D1 anodes connect D5 anodes, and D5 negative electrodes connect cable core（Ground）, Q1 drain electrodes
R1 one end and C1 one end are connect, another termination D7 negative electrodes of C1, D7 anodes connect cable core（Ground）；Q1 source electrodes connect Q10 drain electrodes, and Q10 source electrodes connect
C8 one end, another termination cable cores of C8（Ground）.
Described signal detection process circuit 2 includes five resistance：R3, R4, R11, R12 and R13, two electric capacity：C3、
C6, a diode D11, an audion Q6, two field effect transistor Q4 and Q5, a single-chip microcomputer U1, its annexation is：
R4, R11, R13, C3 and Q6 constitute an amplifying circuit, for being amplified to command signal, are exported by the colelctor electrode of Q6, U1
5 feet be connected with the colelctor electrode of Q6,1 foot of U1 connects the 5V power supplys of the wide scope input output of voltage-stabilized power supply circuit 1, and 8 feet connect
Cable core（Ground）, 7 feet connect one end of R3 and the grid of Q5, and another termination wide scope input voltage-stabilized power supply circuit 1 of R3 is exported
5V power supplys, the 10V power supplys of the termination wide scope input output of voltage-stabilized power supply circuit 1 of R12, another termination Q5 drain electrode,
The grid of D11 negative electrodes, C6 one end and Q4, the source electrode of Q5 connect D11 anodes, the C6 other ends and Q4 source electrodes and connect cable core（Ground）.
Described on-off circuit 3 of publishing includes：Three resistance：R6, R8 and R10, two electric capacity C5 and C7, a voltage stabilizing two
Pole pipe D3, three CMOS tubes Q2, Q3, Q8, its annexation is：Q3 grids connect the PWM control ends of signal detection process circuit 2；
R10 mono- terminates Q3 grids, and another termination Q3 source electrode is simultaneously grounded；R8 mono- terminates the wide scope input voltage-stabilized power supply circuit 1 and exports
10V power supplys, the drain electrode of another termination Q3；The termination Q3 drain electrodes of C5 mono-, another termination Q8 grids, D3 negative electrodes connect Q8 grids, and anode connects
Q2 drains；C7 mono- terminates Q8 grids, another termination Q8 source electrode；The drain electrode of Q8 connects one end of electric cap；R6 mono- terminates signal processing
The high level control end of control circuit, the grid of another termination Q2, the drain electrode of Q2 connect the source electrode of Q8, the source ground of Q2.
Claims (1)
1. a kind of wide scope for circuit for downhole perforation ignition control circuit is input into voltage-stabilized power supply circuit, it is characterised in that：Including five
Individual diode：D1, D2, D5, D6 and D7；Two resistance：R1 and R2；Four electric capacity：C1, C8, C9 and C10；Two CMOS fields effects
Ying Guan：Q1 and Q10, its annexation is：D2 anodes connect cable skin, and negative electrode connects R1 one end, and another termination R2 one end of R1, R2 are another
One end connects Q1 grids, C9 one end and D6 negative electrodes respectively, and another termination cable cores of C9, D6 anodes connect Q10 grids and D1 negative electrodes, D1 anodes
D5 anodes are connect, D5 negative electrodes connect cable core, and Q1 drain electrodes connect R1 one end and C1 one end, and another termination D7 negative electrodes of C1, D7 anodes connect cable core；Q1
Source electrode connects Q10 drain electrodes, and Q10 source electrodes connect C8 one end, another termination cable cores of C8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310605550.1A CN103701319B (en) | 2013-11-26 | 2013-11-26 | For the wide scope input voltage-stabilized power supply circuit of circuit for downhole perforation ignition control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310605550.1A CN103701319B (en) | 2013-11-26 | 2013-11-26 | For the wide scope input voltage-stabilized power supply circuit of circuit for downhole perforation ignition control circuit |
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| Publication Number | Publication Date |
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| CN103701319A CN103701319A (en) | 2014-04-02 |
| CN103701319B true CN103701319B (en) | 2017-04-05 |
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| CN104005740B (en) * | 2014-05-06 | 2016-03-02 | 西安物华巨能爆破器材有限责任公司 | The control circuit of Oil/gas Well multi-stage perforator initiator and control method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764526A (en) * | 2010-02-04 | 2010-06-30 | 西南交通大学 | Switching mode power supply |
| CN203562955U (en) * | 2013-11-26 | 2014-04-23 | 中国石油集团川庆钻探工程有限公司 | Wide-range input regulated power supply circuit of down-hole perforation ignition control circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08317633A (en) * | 1995-05-12 | 1996-11-29 | Toko Inc | Smoothing circuit for switching power supply |
| JP2007014176A (en) * | 2005-07-04 | 2007-01-18 | Fujitsu Ltd | Multiple-power supply circuit and multiple-power supply method |
| CN101719680B (en) * | 2008-12-15 | 2011-12-21 | 厦门市国维电子科技有限公司 | Multilevel drive circuit of battery pack balancing circuit |
| CN103312155A (en) * | 2012-03-16 | 2013-09-18 | 鸿富锦精密工业（深圳）有限公司 | Voltage regulator circuit and electronic device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764526A (en) * | 2010-02-04 | 2010-06-30 | 西南交通大学 | Switching mode power supply |
| CN203562955U (en) * | 2013-11-26 | 2014-04-23 | 中国石油集团川庆钻探工程有限公司 | Wide-range input regulated power supply circuit of down-hole perforation ignition control circuit |
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Effective date of registration: 20200917 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. 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. |
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