CN201269095Y - Feed circuit based on single-conductor cable logging instrument - Google Patents
Feed circuit based on single-conductor cable logging instrument Download PDFInfo
- Publication number
- CN201269095Y CN201269095Y CNU2008200912163U CN200820091216U CN201269095Y CN 201269095 Y CN201269095 Y CN 201269095Y CN U2008200912163 U CNU2008200912163 U CN U2008200912163U CN 200820091216 U CN200820091216 U CN 200820091216U CN 201269095 Y CN201269095 Y CN 201269095Y
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- power supply
- effect transistor
- resistance
- logging instrument
- channel enhancement
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Abstract
The utility model discloses a power supply circuit based on a single core cable logging instrument, which mainly solves the problem that the logging work efficiency is reduced caused by that the existing logging instrument adopts inner-umbrella control switch under the single core power supply mode and is not easy for maintenance. The power supply circuit is characterized in that two comparison circuits consist of a resistor, a voltage regulator tube and two high-gain dual operational amplifiers; two MOS power driver circuits comprise a triode, a field effect transistor, peripheral components and the like; and the two output ends (OUT1, OUT2) of the power supply circuit based on the single core cable logging instrument are respectively led out of the source electrodes of a P channel enhancement-mode field effect transistor Q2 and a P channel enhancement-mode field effect transistor Q6. The power supply circuit based on the single core cable logging instrument can adopt the single core cable to control the power supply mode of the logging instrument on the ground, does not use inner-umbrella control switch any more, solves the contradiction of the logging instrument power supply and the collecting umbrella power supply, and has the characteristics of being capable of improving the logging efficiency and optimizing the logging instrument structure.
Description
Technical field:
The utility model relates to a kind of power supply circuits that are applied in the dynamic logging instrument of oil field, relates to a kind of power-supplying circuit that can realize the single-core cable power supply to oil field dynamic logging instrument specifically.
Background technology:
All be three-core cable for the oil field dynamic logging instrument power supply of using umbrella formula current collector in the prior art.Specifically being assigned as of this three-core cable: a wick feed instrument is gathered downhole data signal simultaneously for positive electricity, and other two cores provide the opening and closing of positive and negative electricity with current collecting umbrella in the control umbrella formula current collector respectively.But, now along with a large amount of uses of single-core cable, just require the power supply of logger and current collecting umbrella can only use same cable core, this just makes the instrument power supply take place to conflict with the power supply of current collecting umbrella.In order addressing this problem, a umbrella inner control switch often to be set in the prior art, to make allowing the motor of logger in current collecting umbrella work in the positive electricity, at this moment logger is in abnormal operating state.After current collecting umbrella was opened fully, by the outage of umbrella inner control switch control motor, logger just began operate as normal.The problem of Yin Faing is exactly thus, in case this umbrella inner control switch damages, will directly cause logger to work so, can only solve by changing instrument, therefore, has reduced the efficient of well logging work.
The utility model content:
Adopt the control of umbrella inner control switch under the existing logger list core power supply mode in order to solve, be not easy to keep in repair and make the problem that the well logging operating efficiency is lowered, the utility model provides a kind of power supply circuits based on the single-core cable logging instrument, this kind can adopt single-core cable that the logger power supply mode is controlled based on the power supply circuits of single-core cable logging instrument on the ground, do not re-use umbrella inner control switch, solved the contradiction of logger power supply with the current collecting umbrella power supply.Have the advantages that to improve logging efficiency, optimize the logger structure and widen the umbrella formula current collector scope of application.
The technical solution of the utility model is: this kind is based on the power supply circuits of single-core cable logging instrument, comprise two comparison circuits and two FET power driving circuits, wherein said two comparison circuits are by resistance R 6, resistance R 7, resistance R 8, resistance R 16, resistance R 15, voltage-stabiliser tube D5 and high-gain dual operational amplifier U1A and high-gain dual operational amplifier U1B form, the negative signal input of the positive signal input of described high-gain dual operational amplifier U1A and described high-gain dual operational amplifier U1B links, as add 0～-input of 100V control power supply; Described two MOS power driving circuits are by triode Q1, P-channel enhancement type field-effect transistor Q2, n channel enhancement type field effect transistor Q3, triode Q4, n channel enhancement type field effect transistor Q5, P-channel enhancement type field-effect transistor Q6 and peripheral components thereof are formed, by the high level signal of the output of described high-gain dual operational amplifier U1A output triggering and conducting signal, by the high level signal of the output output of described high-gain dual operational amplifier U1B triggering and conducting signal as n channel enhancement type field effect transistor Q3 and triode Q4 as triode Q1; Two outputs of described circuit are drawn by the source electrode of described P-channel enhancement type field-effect transistor Q2 and P-channel enhancement type field-effect transistor Q6 respectively.
The utlity model has following beneficial effect: owing to adopt the power supply circuits of this kind based on the single-core cable logging instrument, to not re-use umbrella inner control switch, and can only adopt single-core cable just can realize the power supply mode of logger is controlled on the ground.Promptly when cable input positive electricity, have only logger work, and when cable import 0V～-during U1, current collecting umbrella is opened, when cable input-U2～-during 100V, current collecting umbrella is closed, and has therefore solved the contradiction of logger power supply and current collecting umbrella power supply under single-core cable.Has the advantage that can improve logging efficiency, optimize the logger structure and widen the umbrella formula current collector scope of application.
Description of drawings:
Fig. 1 is single core power supply control structure schematic diagram of the present utility model.
Fig. 2 is an electrical schematic diagram of the present utility model.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 2, this kind of power supply circuits based on the single-core cable logging instrument, comprise two comparison circuits and two FET power driving circuits, wherein said two comparison circuits by resistance R 6,, resistance R 7, resistance R 8, resistance R 16, resistance R 15, voltage-stabiliser tube D5 and high-gain dual operational amplifier U1A and high-gain dual operational amplifier U1B form.The negative signal input of the positive signal input of described high-gain dual operational amplifier U1A and described high-gain dual operational amplifier U1B links, as add 0～-input of 100V control power supply; Described two MOS power driving circuits are by triode Q1, P-channel enhancement type field-effect transistor Q2, n channel enhancement type field effect transistor Q3, triode Q4, n channel enhancement type field effect transistor Q5, P-channel enhancement type field-effect transistor Q6 and peripheral components thereof are formed, by the high level signal of the output of described high-gain dual operational amplifier U1A output triggering and conducting signal, by the high level signal of the output output of described high-gain dual operational amplifier U1B triggering and conducting signal as n channel enhancement type field effect transistor Q3 and triode Q4 as triode Q1.Two output OUT1, OUT2 of described circuit are then drawn by the source electrode of described P-channel enhancement type field-effect transistor Q2 and P-channel enhancement type field-effect transistor Q6 respectively.
During concrete the application, two output OUT1, OUT2 of described circuit are connected to the single-phase voltage input of current collecting umbrella motor, when high-gain dual operational amplifier U1A was output as high level, high-gain dual operational amplifier U1B was output as low level.Because high-gain dual operational amplifier U1A is output as high level, thereby trigger triode Q1 conducting, triode Q1 conducting triggers P-channel enhancement type field-effect transistor Q2, n channel enhancement type field effect transistor Q5 conducting again, make the level of output OUT2 be lower than the level of output OUT1, be equivalent to the logical positive electricity of current collecting umbrella motor, begin to open.When input voltage is lower than certain numerical value, high-gain dual operational amplifier U1B is output as high level, high-gain dual operational amplifier U1A is output as low level, thereby trigger n channel enhancement type field effect transistor Q3, triode Q4 conducting, triode Q4 conducting triggers P-channel enhancement type field-effect transistor Q6 conducting again, make the level of output OUT1 be lower than the level of output OUT2 by this process, be equivalent to the logical negative electricity of current collecting umbrella motor, beginning is closed.By above flow process, thereby reach the purpose of level conversion.
When concrete the application, by input for DC voltage 0～-100V, when input 0～-during U1, output OUT1 high potential, output OUT2 electronegative potential, the current collecting umbrella motor just changes; When input-U2～-during 100V, output OUT1 electronegative potential, output OUT2 high potential, the counter-rotating of current collecting umbrella motor.When input voltage-U1～-U2 between the time, do not have potential difference between output OUT1 and the output OUT2.This design of this circuit aims at the current collecting umbrella design, and certain delay is arranged when changing mutually for parachute-opening with between closing one's umbrella, with the application life of protection motor, prolongation motor.Hence one can see that, as long as regulate the size of input A terminal voltage, do not change supplier of electricity to just finishing the overall process that current collecting umbrella is opened receipts like this.
Control structure schematic diagram when logger is used this kind circuit and finished the power supply of single core as shown in Figure 1.When supplying positive electricity to instrument, logger operate as normal, the data-signal of each measurement parameter under the production wells; When supplying negative electricity to instrument, logger is not worked, and current collecting umbrella motor operate as normal, the control current collecting umbrella is opened the overall process of receipts.In addition, for increasing the driving power of power supply, can also in described power supply circuits, add a power supply unit of voltage regulation that constitutes by 13005 triode V1, resistance R 3, resistance R 4,6V voltage-stabiliser tube D3,6V voltage-stabiliser tube D4 and capacitor C 1.Described voltage-stabiliser tube D3 and voltage-stabiliser tube D4 are composed in series the 12V voltage stabilizing, thereby described 13005 triode V1, resistance R 3 and resistance R 4 are formed the driving power that drive circuit has increased power supply.
Claims (2)
1, a kind of power supply circuits based on the single-core cable logging instrument, comprise two comparison circuits and two FET power driving circuits, it is characterized in that: described two comparison circuits are made up of resistance R 6, resistance R 7, resistance R 8, resistance R 16, resistance R 15, voltage-stabiliser tube D5 and high-gain dual operational amplifier U1A and high-gain dual operational amplifier U1B, the negative signal input of the positive signal input of described high-gain dual operational amplifier U1A and described high-gain dual operational amplifier U1B links, as add 0～-input of 100V control power supply; Described two MOS power driving circuits are by triode Q1, P-channel enhancement type field-effect transistor Q2, n channel enhancement type field effect transistor Q3, triode Q4, n channel enhancement type field effect transistor Q5, P-channel enhancement type field-effect transistor Q6 and peripheral components thereof are formed, by the high level signal of the output of described high-gain dual operational amplifier U1A output triggering and conducting signal, by the high level signal of the output output of described high-gain dual operational amplifier U1B triggering and conducting signal as n channel enhancement type field effect transistor Q3 and triode Q4 as triode Q1; (OUT1 OUT2) is drawn by the source electrode of described P-channel enhancement type field-effect transistor Q2 and P-channel enhancement type field-effect transistor Q6 respectively two outputs of described circuit.
2, the power supply circuits based on the single-core cable logging instrument according to claim 1, it is characterized in that: described power supply circuits also comprise a power supply unit of voltage regulation that is made of 13005 triode V1, resistance R 3, resistance R 4,6V voltage-stabiliser tube D3,6V voltage-stabiliser tube D4 and capacitor C 1, described voltage-stabiliser tube D3 and voltage-stabiliser tube D4 are composed in series the 12V voltage stabilizing, and described 13005 triode V1, resistance R 3 and resistance R 4 are formed drive circuit to increase the driving power of power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200912163U CN201269095Y (en) | 2008-10-28 | 2008-10-28 | Feed circuit based on single-conductor cable logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200912163U CN201269095Y (en) | 2008-10-28 | 2008-10-28 | Feed circuit based on single-conductor cable logging instrument |
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| CN201269095Y true CN201269095Y (en) | 2009-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200912163U Expired - Fee Related CN201269095Y (en) | 2008-10-28 | 2008-10-28 | Feed circuit based on single-conductor cable logging instrument |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094645A (en) * | 2011-03-09 | 2011-06-15 | 中国煤炭地质总局一二九勘探队 | Small-bore microspherically-focused logging instrument |
| CN102536214A (en) * | 2010-12-15 | 2012-07-04 | 常州凯锐自动化控制设备有限公司 | Signal transmission equipment for coal-bed gas well detection signals |
| CN103138655A (en) * | 2013-03-15 | 2013-06-05 | 兰振 | Control device of electronic seed disseminating device |
| CN105626051A (en) * | 2014-11-03 | 2016-06-01 | 中国石油集团长城钻探工程有限公司 | Integrated high-voltage circuit system for controllable neutron source for compensating for neutron instrument |
| CN109707367A (en) * | 2018-12-26 | 2019-05-03 | 贵州航天凯山石油仪器有限公司 | A kind of well logging single power supply down-hole power Redundancy Design system and method |
-
2008
- 2008-10-28 CN CNU2008200912163U patent/CN201269095Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536214A (en) * | 2010-12-15 | 2012-07-04 | 常州凯锐自动化控制设备有限公司 | Signal transmission equipment for coal-bed gas well detection signals |
| CN102094645A (en) * | 2011-03-09 | 2011-06-15 | 中国煤炭地质总局一二九勘探队 | Small-bore microspherically-focused logging instrument |
| CN102094645B (en) * | 2011-03-09 | 2013-05-15 | 中国煤炭地质总局一二九勘探队 | Small-bore microspherically-focused logging instrument |
| CN103138655A (en) * | 2013-03-15 | 2013-06-05 | 兰振 | Control device of electronic seed disseminating device |
| CN103138655B (en) * | 2013-03-15 | 2015-05-13 | 兰振 | Control device of electronic seed disseminating device |
| CN105626051A (en) * | 2014-11-03 | 2016-06-01 | 中国石油集团长城钻探工程有限公司 | Integrated high-voltage circuit system for controllable neutron source for compensating for neutron instrument |
| CN105626051B (en) * | 2014-11-03 | 2023-11-28 | 中国石油集团长城钻探工程有限公司 | Integrated high-voltage circuit system for controllable neutron source compensation neutron instrument |
| CN109707367A (en) * | 2018-12-26 | 2019-05-03 | 贵州航天凯山石油仪器有限公司 | A kind of well logging single power supply down-hole power Redundancy Design system and method |
| CN109707367B (en) * | 2018-12-26 | 2022-04-19 | 贵州航天凯山石油仪器有限公司 | Single-core power supply underground power supply redundancy design system and method for well logging |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090708 Termination date: 20171028 |
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| CF01 | Termination of patent right due to non-payment of annual fee |