CN201714377U - Controllable signal emitter capable of being loaded with pseudorandom code - Google Patents
Controllable signal emitter capable of being loaded with pseudorandom code Download PDFInfo
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- CN201714377U CN201714377U CN2010201572698U CN201020157269U CN201714377U CN 201714377 U CN201714377 U CN 201714377U CN 2010201572698 U CN2010201572698 U CN 2010201572698U CN 201020157269 U CN201020157269 U CN 201020157269U CN 201714377 U CN201714377 U CN 201714377U
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Abstract
A controllable signal emitter capable of being loaded with pseudorandom code is used for oil field exploration and comprises an output circuit, an output signal control circuit, a frequency and/or time domain signal generating circuit and an emitter electrode. A pseudorandom code generating unit generates pseudorandom code and transmits the code to a central controller, the code is processed by the central controller and then transmitted to the output signal control circuit, and the processed pseudorandom code is laded in a control signal of the output circuit by the output signal control circuit, thereby forming a pseudorandom code control signal to be transmitted to the emitter electrode. Besides, the output signal control circuit can receive frequency and/or time domain signals generated by the frequency and/or time domain signal generating circuit and load the signals into the control signal of the output circuit, so that the emitter can emit three types of signals and is quite flexible in use. The receiver terminal can only receive the pseudorandom signals after the specific pseudorandom code control signals are loaded to the ground, thereby avoiding interference of other signals and distinguishing deep low-resistance abnormal bodies clearly.
Description
Technical field
The utility model relates to the oil field prospecting technical field, especially a kind of controllable signal transmitter of energy loading pseudo random code, be mainly used in pressure break, water filling, profile control process monitoring in the oil field prospecting exploitation, can be in work progress as required to the high-power controllable electric field signal of stratum loading pseudo random code.
Background technology
Basically all need the fracture orientation monitoring behind the oil-gas mining producing well fracturing work, deep gas well also needs to carry out the fracturing fracture monitoring.At present, the electrical method receiving instrument that is applied to the oil field prospecting exploitation is when ground test artificial potential field, because strong jamming background, cause it can not extract ultra-weak electronic signal, and to reach the purpose of clear resolution deep layer low-resistance anomalous body in the practical application, must make instrument reach the certainty of measurement of microvolt level, existing emission instrument adopts frequency domain or time-domain signal emission, the influence that in gatherer process, can't exclude the interference signal, therefore needs can be got rid of jamming pattern, but the high-power controllable signal transmitter of loading pseudo random code cooperates the common use of electrical method signal receiver (applying for a patent separately).
The utility model content
The purpose of this utility model provides a kind of controllable signal transmitter of energy loading pseudo random code, deep layer emission in well in the oil field prospecting exploitation, when the artificial electric field of ground test, can get rid of jamming pattern, make ground receiving equipment can reach the purpose of clear resolution deep layer low-resistance anomalous body.
The technical scheme that realizes the utility model purpose is:
1, a kind of controllable signal transmitter of energy loading pseudo random code is used for oil field prospecting, comprises at least:
Output circuit, output signal control circuit, frequency signal produce circuit and/or time-domain signal produces circuit, and emitter stage;
Wherein said output signal control circuit produces circuit with described output circuit, described frequency signal and/or time-domain signal generation circuit is connected, receive frequency signal and/or time-domain signal that described frequency signal produces circuit and/or the generation of time-domain signal generation circuit, and this frequency signal and/or time-domain signal be added in the control signal of described output circuit, form control signal and be transmitted to measured target through described emitter stage;
Wherein said controllable signal transmitter also comprises central controller and pseudorandomcode generating unit, be connected with described output signal control circuit, described pseudorandomcode generating unit produces pseudorandomcode and transfers to described central controller, handle and transfer to described output signal control circuit by described central controller, the pseudorandomcode of described output signal control circuit after with described processing is added in the control signal of described output circuit, forms the pseudorandomcode control signal and is sent to described emitter stage.
2, described controllable signal transmitter also comprises an outer sync cap, is connected with described output signal control circuit, receives the pseudorandomcode after described central controller is handled and transfers to described output signal control circuit.
3, described pseudorandomcode control signal is a kind of square wave direct current power supply signal.
4, described pseudorandomcode generating unit comprises computer and level shifting circuit, and described central controller comprises single-chip microcomputer and communicating circuit;
The described pseudorandomcode that wherein said computer sends transfers to described single-chip microcomputer by described level shifting circuit, be converted into voltage change signal by described single-chip microcomputer processing, be sent to described output signal control circuit by described communicating circuit by described outer sync cap again.
5, described single-chip microcomputer model is C8051F236, and described single-chip microcomputer transforms the voltage change signal that generates and is ± the 5V voltage change signal; Described communicating circuit adopts the MAX485 circuit, and described level shifting circuit adopts the MAX232 circuit.
6, the pseudorandomcode of described pseudorandomcode generating unit generation is 15.
7, described MAX232 circuit drives by serial port with described MAX485 circuit and communicates by letter.
8, described output signal control circuit comprises IGBT drive circuit and signal output apparatus.
The utlity model has positive effect:
The controllable signal transmitter of energy loading pseudo random code of the present utility model can be launched three kinds of signals: the pseudorandomcode control signal, time-domain signal or frequency-region signal, use very flexible, can seek underground geology of deep part structure for electrical prospecting, understand geologic structure high-power controllable signal source is provided, especially the high-power controllable electric field signal of the distinctive pseudorandomcode of the utility model is after the stratum loads, can receive only this pseudo-random signal at the receiving instrument end, thereby avoid the interference of other signals, reach the purpose of clear resolution deep layer low-resistance anomalous body, solved the monitoring of oil field compression fracture well fracture orientation, the monitoring of water injection well water drive scope, evaluation of profile control well profile control effect and steam flooding well vapour drive problems such as scope.
Description of drawings
Fig. 1 is the circuit function calcspar of the controllable signal transmitter of the utility model energy loading pseudo random code;
Fig. 2 is the functional block diagram of the central controller of an embodiment of the utility model;
Fig. 3 is the central controller detailed circuit diagram of an embodiment of the utility model;
Fig. 4 is the outer sync cap detailed circuit diagram of an embodiment of the utility model;
Fig. 5 A is the detailed circuit diagram of the IGBT drive circuit of an embodiment of the utility model;
Fig. 5 B is the detailed circuit diagram of the signal output apparatus of an embodiment of the utility model;
Fig. 6 is the detailed circuit diagram of the time-domain signal circuit of an embodiment of the utility model;
Fig. 7 is the detailed circuit diagram of the frequency-region signal circuit of an embodiment of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and with the specific embodiment is example, and the utility model is elaborated.But what those skilled in the art should know is that the utility model is not limited to the listed specific embodiment, as long as meet spirit of the present utility model, all should be included in the protection domain of the present utility model.
Principle of the present utility model is: except can to the conventional time domain of measured target emission and/frequency-region signal, can also launch the pseudorandomcode control signal, the control signal of three kinds of different modes is by signal output control unit control high pressure emission power, make the emission power signal become the high pressure time domain consistent with them and/or frequency-region signal or pseudorandomcode control signal, this high-voltage signal can load to the stratum in work progress as required.The high-power controllable electric field signal of the distinctive pseudorandomcode of the utility model can receive only this pseudo-random signal at the receiving instrument end, thereby avoid the interference of other signals after the stratum loads, and reaches the purpose of clear resolution deep layer low-resistance anomalous body.Therefore innovation of the present utility model is to utilize outer sync cap to introduce the pseudo-random signal consistent with receiving terminal and controls the emission power signal, make transmit consistent with received signal, get rid of the interference of random signal, kept original technical used time domain and frequency-region signal mode simultaneously again.
Please refer to Fig. 1, be the functional schematic block diagram of controllable signal transmitter that can loading pseudo random code of the present utility model; As shown in Figure 1, at first provide power supply signal to current rectifying and wave filtering circuit 200 by working power 100, in an embodiment of the present utility model, working power is 220v, the alternating current of 50Hz, processing through current rectifying and wave filtering circuit 200 generates dc power signal, transfer to voltage regulator circuit 300 then, the effect of voltage regulator circuit 300 is phase shifts, produce the linear DC power supply signal at last and give output circuit 400, processing through output circuit 400, form specific pseudorandomcode control signal and give emitter 500, this pseudorandomcode control signal is a kind of square wave direct current power supply signal, is transmitted to measured target by emitter 500 at last.
In traditional controllable signal transmitter, generally on output circuit 400, be connected with output signal control circuit 600, be used for receiving frequency signals and produce circuit 603 and/or next frequency signal and/or the time-domain signal of time-domain signal generation circuit 604 transmission, then this frequency signal and/or time-domain signal are added in the control signal of output circuit 400, form a kind of high pressure time domain control signal consistent and/or high pressure frequency domain control signal and be transferred to emitter stage 500 with this frequency signal and/or time-domain signal, in work progress, according to actual needs, this high pressure time domain control signal and/or high pressure frequency-region signal are loaded to the stratum by emitter stage 500.It is known that each circuit unit in the said process is those skilled in the art, is the detailed circuit diagram of the time-domain signal circuit of an embodiment of the utility model as Fig. 6; Fig. 7 is the detailed circuit diagram of the frequency-region signal circuit of an embodiment of the utility model, repeats no more.
Shown in Fig. 5 A and Fig. 5 B, in the utility model, output signal control circuit 600 comprises IGBT drive circuit and signal output apparatus two parts, and wherein Fig. 5 A is the detailed circuit diagram of the IGBT drive circuit of an embodiment of the utility model; Output stage adopts the high-power fieldtron of IGBT, and constant current and constant voltage control module are adopted in the control of output current, finishes the tracking of output current is regulated.Integrated circuit precision oscillator and accurate frequency divider are adopted in the generation of time-domain and frequency-domain signal, and frequency accuracy can reach 1/10
6Precision and the stability of system's output frequency, time are improved greatly.To the high order and the low-order harmonic of output current, adopt inductance and electric capacity to form pi type filter, to satisfy filter effect.Fig. 5 B is the detailed circuit diagram of the signal output apparatus of an embodiment of the utility model; Utilize this two parts circuit can realize that small-power control is high-power, make the high voltage direct current loading pseudo random code of voltage regulator circuit 300 outputs after, by emitter stage 500 this control signal that has loaded random coding signal is transmitted to underground tested geologic body.
The controllable signal transmitter of the utility model energy loading pseudo random code, except frequency signal produces circuit 603 and/or time-domain signal generation circuit 604, on output signal control circuit 600, also be connected with a central controller 700 and pseudorandomcode generating unit 710, the function of pseudorandomcode generating unit 710 is to produce different pseudorandomcodes and transfer to central controller 700 according to the requirement of certainty of measurement, the pseudorandomcode figure place is long more, and certainty of measurement is high more.And the function of central controller 700 is that pseudorandomcode is carried out the circuit conversion, is converted into ± signal of 5V voltage change, and is transferred to output signal control circuit 600.In one embodiment, as shown in Figure 2, central controller 700 has adopted single-chip microcomputer C8051F236, pseudorandomcode generating unit 710 is served as by computer, one 15 pseudorandom code sequence has taken place: { A15}=1000100110101111000100110101111 ... this pseudorandomcode through MAX232 level shifting circuit 705 and central controller 700 after, handle being converted into ± signal of 5V voltage change, be transferred to output signal control circuit 600 by communicating circuit then.Pass through the processing of output circuit 400 again, form specific pseudorandomcode control signal and give emitter 500, this pseudorandomcode control signal is a kind of square wave direct current power supply signal, is transmitted to measured target by emitter 500 at last.
In an above-mentioned preferred embodiment of the present utility model shown in Figure 2, central controller 700 has comprised a MAX485 communicating circuit, be responsible for to send that single-chip microcomputer C8051F236 generates ± signal of 5V voltage change.The MAX485 communicating circuit is sent into signal by the sync cap on the controllable signal transmitter of the present utility model 720.Fig. 4 is the detailed circuit diagram of the outer sync cap 720 of an embodiment of the utility model.
In a specific embodiment, the MAX485 communicating circuit adopts the MAX485 interface chip, it is a kind of RS one 485 chips of Maxim company, it adopts single power supply+5V work, rated current is 300 μ A, adopt the half duplex communication mode, it finishes the function that Transistor-Transistor Logic level is converted to the RS-485 level, the structure of MAX485 chip and pin are all very simple, a driver and receiver are contained in inside, RO and DI end are respectively the output of receiver and the input of driver, only need to link to each other with TXD with the RXD of single-chip microcomputer respectively when being connected with single-chip microcomputer to get final product; / RE and DE end are respectively the Enable Pin that receives and send, when/when RE was logical zero, device was in accepting state; When DE was logical one, device was in the transmission state, because MAX485 is operated in the half-duplex state, got final product so only need control these two pins with a pin of single-chip microcomputer; Side a and b is respectively the differential signal end that receives and send, and when the level of A pin was higher than B, the data that representative sends were 1; When the level of A was lower than the B end, the data that representative sends were 0.Wiring is very simple when being connected with single-chip microcomputer.Only need the reception of a signal controlling MAX485 and send to get final product.To add build-out resistor, the resistance of general optional 100 Ω between A and the B end simultaneously.
In an embodiment of the present utility model, adopt the serial port power taking, can drive MAX232 and realize communicating by letter with MAX485.Voltage is not 5.16V when having loading, drops to about 3V after the loading.
The signal that the MAX485 communicating circuit of present embodiment sends is exactly the pseudorandomcode control signal, controls transmitter with it and sends this type of signal, is inserted by outer sync cap 720 when controlling transmitter; Receive only this type of signal with its control receiver simultaneously, thereby just can get rid of the external interference signal, improve accuracy of instrument.
The controllable signal transmitter of energy loading pseudo random code of the present utility model, except can to the conventional time domain of measured target emission and/frequency-region signal, can also launch the pseudorandomcode control signal, use flexibly, can seek underground geology of deep part structure for electrical prospecting, understand geologic structure high-power controllable signal source is provided, the clear resolution deep layer low-resistance anomalous body of signal of telecommunication energy that receiving instrument is received has solved the monitoring of oil field compression fracture well fracture orientation, the monitoring of water injection well water drive scope, the evaluation of profile control well profile control effect and steam flooding well vapour and has driven problems such as scope.
It should be noted that the foregoing description is example and unrestricted the utility model, those skilled in the art can design a lot of alternate embodiments and not break away from scope of the present utility model.
Claims (8)
1. the controllable signal transmitter of an energy loading pseudo random code is used for oil field prospecting, comprises at least:
Output circuit, output signal control circuit, frequency signal produce circuit and/or time-domain signal produces circuit, and emitter stage;
Wherein said output signal control circuit produces circuit with described output circuit, described frequency signal and/or time-domain signal generation circuit is connected, receive frequency signal and/or time-domain signal that described frequency signal produces circuit and/or the generation of time-domain signal generation circuit, and this frequency signal and/or time-domain signal be added in the control signal of described output circuit, form control signal and be transmitted to measured target through described emitter stage;
It is characterized in that:
Described controllable signal transmitter also comprises central controller and pseudorandomcode generating unit, be connected with described output signal control circuit, described pseudorandomcode generating unit produces pseudorandomcode and transfers to described central controller, handle and transfer to described output signal control circuit by described central controller, the pseudorandomcode of described output signal control circuit after with described processing is added in the control signal of described output circuit, forms the pseudorandomcode control signal and is sent to described emitter stage.
2. the controllable signal transmitter of energy loading pseudo random code as claimed in claim 1, it is characterized in that: described controllable signal transmitter also comprises an outer sync cap, be connected with described output signal control circuit, receive the pseudorandomcode after described central controller is handled and transfer to described output signal control circuit.
3. the controllable signal transmitter of energy loading pseudo random code as claimed in claim 1 or 2, it is characterized in that: described pseudorandomcode control signal is a kind of square wave direct current power supply signal.
4. as the controllable signal transmitter of claim 1 or 3 described energy loading pseudo random codes, it is characterized in that: described pseudorandomcode generating unit comprises computer and level shifting circuit, and described central controller comprises single-chip microcomputer and communicating circuit;
The described pseudorandomcode that wherein said computer sends transfers to described single-chip microcomputer by described level shifting circuit, be converted into voltage change signal by described single-chip microcomputer processing, be sent to described output signal control circuit by described communicating circuit by described outer sync cap again.
5. the controllable signal transmitter of energy loading pseudo random code as claimed in claim 4, it is characterized in that: described single-chip microcomputer model is C8051F236, described single-chip microcomputer transforms the voltage change signal that generates and is ± the 5V voltage change signal; Described communicating circuit adopts the MAX485 circuit, and described level shifting circuit adopts the MAX232 circuit.
6. the controllable signal transmitter of energy loading pseudo random code as claimed in claim 5 is characterized in that: the pseudorandomcode that described pseudorandomcode generating unit produces is 15.
7. as the controllable signal transmitter of claim 5 or 6 described energy loading pseudo random codes, it is characterized in that: described MAX232 circuit drives by serial port with described MAX485 circuit and communicates by letter.
8. the controllable signal transmitter of energy loading pseudo random code as claimed in claim 1, it is characterized in that: described output signal control circuit comprises IGBT drive circuit and signal output apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201572698U CN201714377U (en) | 2010-04-12 | 2010-04-12 | Controllable signal emitter capable of being loaded with pseudorandom code |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201572698U CN201714377U (en) | 2010-04-12 | 2010-04-12 | Controllable signal emitter capable of being loaded with pseudorandom code |
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| CN201714377U true CN201714377U (en) | 2011-01-19 |
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| CN2010201572698U Expired - Lifetime CN201714377U (en) | 2010-04-12 | 2010-04-12 | Controllable signal emitter capable of being loaded with pseudorandom code |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798920A (en) * | 2010-04-12 | 2010-08-11 | 大港油田集团有限责任公司 | Controllable signal transmitter capable of loading pseudo random code |
| CN102891645A (en) * | 2011-07-19 | 2013-01-23 | 中国石油天然气集团公司 | Constant current inversion method and constant current inversion system |
-
2010
- 2010-04-12 CN CN2010201572698U patent/CN201714377U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798920A (en) * | 2010-04-12 | 2010-08-11 | 大港油田集团有限责任公司 | Controllable signal transmitter capable of loading pseudo random code |
| CN102891645A (en) * | 2011-07-19 | 2013-01-23 | 中国石油天然气集团公司 | Constant current inversion method and constant current inversion system |
| CN102891645B (en) * | 2011-07-19 | 2015-07-08 | 中国石油天然气集团公司 | Constant current inversion method and constant current inversion system |
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Granted publication date: 20110119 |
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