CN204045004U - A kind of aboveground mud-pressure pulses acquisition system - Google Patents
A kind of aboveground mud-pressure pulses acquisition system Download PDFInfo
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- CN204045004U CN204045004U CN201420529721.7U CN201420529721U CN204045004U CN 204045004 U CN204045004 U CN 204045004U CN 201420529721 U CN201420529721 U CN 201420529721U CN 204045004 U CN204045004 U CN 204045004U
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Abstract
A kind of aboveground mud-pressure pulses acquisition system, it comprises mud pressure sensor, wireless high-speed harvester and Surveillance center; Described wireless high-speed harvester is connected with described mud pressure sensor by data cable, wherein, described wireless high-speed harvester comprises pressure pulse Acquisition Circuit, wireless radio frequency circuit and high-capacity lithium battery group, and described pressure pulse Acquisition Circuit comprises wave filter, high precision analog/digital conversion circuit, single-chip microcomputer governor circuit, electric power management circuit and antenna.The utility model, by adopting aboveground mud-pressure pulses acquisition system, effectively can solve high speed acquisition and the remote transmission of aboveground on-the-spot mud pressure pulse signal, so that the state of operating personnel to subsurface tool is monitored in real time.
Description
Technical field
The utility model relates to a kind of acquisition system, particularly a kind of aboveground mud-pressure pulses acquisition system.
Background technology
Bidirectional data communication is carried out in real time in intelligent drilling instrument (comprising rotary steering drilling tool and vertical drilling tool) needs and ground when underground work in field of oil drilling, wherein, data to upload and pass down be that the pulsed frequency of mud pressure by special communication protocol and then adjustment wellbore tubular realizes.On the one hand, by changing, mud-pressure pulses frequency is continual transmits the various state parameter of subsurface tool to downhole well tool earthward; On the other hand, the biography down of instruction is carried out on ground to subsurface tool by change mud-pressure pulses frequency.
But, the mud pressure pulse signal that the well depth of a few km transmits earthward from down-hole is often very faint and be easily subject to a lot of humorous wave interference, in addition, for the receiving equipment on ground, also need to possess high resolving power, high-performance filtering, jamproof mud-pressure pulses acquisition capacity, and the data collected need two-forty, highly reliable, without packet loss from aboveground scene to remote monitoring center transmission, then through decoding and data processing after by operating personnel's implementing monitoring.These are all the difficult points on current mud pressure acquisition technique.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of aboveground mud-pressure pulses acquisition system, and it comprises mud pressure sensor, wireless high-speed harvester and Surveillance center; Described wireless high-speed harvester is connected with described mud pressure sensor by data cable, wherein, described wireless high-speed harvester comprises pressure pulse Acquisition Circuit, the first wireless radio frequency circuit and high-capacity lithium battery group, described Surveillance center comprises the second wireless radio frequency circuit and computing machine, described pressure pulse Acquisition Circuit comprises wave filter, high precision analog/digital conversion circuit, single-chip microcomputer governor circuit, electric power management circuit and antenna, and described wireless radio frequency circuit comprises the second digital processing element and radio-frequency (RF) transceiver.
Preferably, described wave filter adopts operational amplifier to coordinate the cutoff frequency of Resistor-Capacitor Unit to be the second-order low-pass filter of 30HZ, and described filter configuration ground is in order to the low frequency spur of filtering pulse signal and interference and give described high precision analog/digital conversion circuit by filtered Signal transmissions.
Preferably, described high precision analog/digital conversion circuit adopts ADS1216 high precision analog/digital conversion microprocessor as core cell, configuration ground is used for carrying out 22 precise figures to the voltage signal of 0.5-4.5V pressure pulse and quantizes, and enters described single-chip microcomputer governor circuit after the conversion from analog quantity to digital quantity by spi bus.
Preferably, described single-chip microcomputer governor circuit comprises the first digital processing element, and wherein, described first digital processing element adopts PIC18F2585 microprocessor, configuration ground is used for carrying out software algorithm filtering to mud-pressure pulses digital signal, removes interference further.
Preferably, first digital processing element carries out two-way communication by the TTL serial data bus of 9600 baud rates and wireless radio frequency circuit, on the one hand mud pressure signal and other status signals are sent to remote monitoring center by wireless radio frequency circuit, the instruction that another aspect is sent by wireless radio frequency circuit reception Surveillance center, dispatches other processors and module enters dormancy or mode of operation.
Preferably, described second data processing unit for core with PIC18F4680 microprocessor, carries out data packing to the TTL serial data of pressure pulse according to private communication protocol and sends to radio-frequency (RF) transceiver for wireless transmission with the two-forty of 200 byte/0.5 second.
Preferably, described radio-frequency (RF) transceiver adopts CC1101 radio-frequency (RF) transceiver as core processor, and transmit power level reaches+10dBm, peak power only has 10mW, and aerial speed reaches 15KBPS, maximum transmission distance reaches 500 meters, for meeting the high-rate radio frequency transmission demand of pulse signal.
Preferably, described high-capacity lithium battery group configuration ground can export 5V direct current, and direct current is 3.3V through electric power management circuit voltage stabilizing, is finally each chip power supply of system.
Preferably, described mud pressure sensor is arranged on the hydraulic fill pipeline at aboveground scene.
Preferably, described mud pressure sensor is measured the mud pressure in hydraulic fill pipeline and is exported corresponding digital pulse signal according to the real-time change of mud pressure, and pulse signal is within the scope of 0.5-4.5V.
The utility model, by adopting aboveground mud-pressure pulses acquisition system, effectively can solve high speed acquisition and the remote transmission of aboveground on-the-spot mud pressure pulse signal, so that the state of operating personnel to subsurface tool is monitored in real time.
Accompanying drawing explanation
Fig. 1 is the system connection layout of the aboveground mud-pressure pulses acquisition system that the utility model relates to;
Fig. 2 is the structural representation of pressure pulse Acquisition Circuit in the aboveground mud-pressure pulses acquisition system that relates to of the utility model;
Fig. 3 is the structural representation of wireless radio frequency circuit in the aboveground mud-pressure pulses acquisition system that relates to of the utility model.
Wherein, 1-mud pressure sensor, 2-wireless high-speed harvester, 3-Surveillance center, 4-pressure pulse Acquisition Circuit, 5-first wireless radio frequency circuit, 6-Large Copacity rechargeable type lithium battery group, 7-wave filter, 8-high precision analog/digital conversion circuit, 9-single-chip microcomputer governor circuit, 10-electric power management circuit, 11-first digital processing element, 12-second data processing unit, 13-433M radio-frequency (RF) transceiver, 14-second wireless radio frequency circuit, 15-computing machine.
Embodiment
In order to intention of the present utility model is described better, below in conjunction with accompanying drawing, the utility model content is described further.
As shown in Figure 1, Fig. 1 shows an embodiment, this embodiment offers a kind of aboveground mud-pressure pulses acquisition system, it comprises mud pressure sensor 1, wireless high-speed harvester 2 and Surveillance center 3, wherein, the hydraulic fill pipeline that mud pressure sensor 1 is arranged on aboveground scene has high strength, corrosion-resistant, the feature of preventing RF/electromagnetic interference (EMI) and high measurement accuracy, mud pressure in described mud pressure sensor 1 pair of hydraulic fill pipeline is measured and exports corresponding digital pulse signal according to the real-time change of mud pressure, pulse signal is preferably within the scope of 0.5-4.5V, wireless high-speed harvester 2 is connected with mud pressure sensor 1 by data cable, and it comprises pressure pulse Acquisition Circuit 4, first wireless radio frequency circuit 5 and high-capacity lithium battery group 6, Surveillance center 3 comprises the second wireless radio frequency circuit 14 and computing machine 15, first wireless radio frequency circuit 5 and the second wireless radio frequency circuit 14 and is all equipped with antenna, and wherein, the structure of pressure pulse Acquisition Circuit 4, wireless radio frequency circuit 5 is see Fig. 2 and Fig. 3.
Consider the environmental baseline at aboveground scene, wireless high-speed harvester 2 needs to possess and to work long hours under power free circumstances and the function of protecting against shock waterproof, adopt explosion-proof metal shell on the one hand, the mode of internal circuit embedding ensure that the impact resistance of system; On the other hand, powered by Large Copacity rechargeable type lithium battery group 6 pairs of internal circuits, internal circuit have employed Highgrade integration, the design proposal of low-power consumption, on hardware and software to working state of system at times divide into dormancy and normal condition, make system charge once can normally work 100 hours.
Fig. 2 shows the structural drawing of pressure pulse Acquisition Circuit 4 in described wireless high-speed harvester 2, described pressure pulse Acquisition Circuit 4 comprises wave filter 7, high precision analog/digital conversion circuit 8, single-chip microcomputer governor circuit 9, electric power management circuit 10 and antenna, wherein, wave filter 7 is low-pass filter, preferred employing TI company OPA2333 operational amplifier coordinates the cutoff frequency of Resistor-Capacitor Unit to be the second-order low-pass filter of 30HZ, in order to the low frequency spur of filtering pulse signal and interference and by filtered Signal transmissions to high precision analog/digital conversion circuit, high precision analog/digital conversion circuit 8 adopts TI company ADS1216 high precision analog/digital conversion microprocessor as core cell, carry out 22 precise figures to the voltage signal of 0.5-4.5V pressure pulse to quantize, after the conversion from analog quantity to digital quantity, enter single-chip microcomputer governor circuit by spi bus, single-chip microcomputer governor circuit 9 comprises the first digital processing element 11, wherein, first digital processing element 11 adopts the PIC18F2585 microprocessor of Microchip company, software algorithm filtering is carried out to mud-pressure pulses digital signal, further removal interference, in addition, first digital processing element 11 carries out two-way communication by the TTL serial data bus of 9600 baud rates and wireless radio frequency circuit 5, on the one hand mud pressure signal and other status signals are sent to remote monitoring center 3 by wireless radio frequency circuit 5, wireless radio frequency circuit 5 receives the instruction that Surveillance center 3 sends on the other hand, dispatch other processors and module enters dormancy or mode of operation.
Fig. 3 shows the structural drawing of wireless radio frequency circuit 5 in described wireless high-speed harvester 2, described wireless radio frequency circuit 5 comprises the second digital processing element 12 and 433M radio-frequency (RF) transceiver 13, wherein, second data processing unit 12 with the PIC18F4680 microprocessor of Microchip company for core, according to private communication protocol, data packing is carried out to the TTL serial data of pressure pulse and sends to 433M radio-frequency (RF) transceiver 13 to carry out wireless transmission with the two-forty of 200 byte/0.5 second, add in software and to retransmit and effect is machine-processed ensure that the integrality and reliability that transmit and receive data, 433M radio-frequency (RF) transceiver 13 adopts the wireless solution of the 433MHz intermediate frequency super low-power consumption of TI company and is equipped with antenna, it adopts CC1101 radio-frequency (RF) transceiver as core processor, transmit power level reaches+10dBm, peak power only has 10mW, and aerial speed reaches 15KBPS, maximum transmission distance reaches 500 meters, meet the high-rate radio frequency transmission demand of pulse signal, dormant state is except data send other times, reduce further power consumption, total system stand-by time is shortened greatly.
In addition, the exportable 5V direct current of high-capacity lithium battery group 6, direct current is 3.3V through electric power management circuit voltage stabilizing, is finally each chip power supply of system.
By adopting the aboveground mud-pressure pulses acquisition system in above-described embodiment, high speed acquisition and remote transmission can be carried out to aboveground on-the-spot mud pressure pulse signal, so that the state of operating personnel to subsurface tool is monitored in real time.Particularly, the real-time change of pressure transducer to the mud pressure in hydraulic fill pipeline be arranged on the hydraulic fill pipeline at aboveground scene detects and exports corresponding digital pulse signal to pressure pulse Acquisition Circuit in wireless high-speed harvester, this digital pulse signal is through the filtering of pressure pulse Acquisition Circuit, gather and export to wireless radio frequency circuit after amplification, and remote transmission is carried out by antenna after being modulated into high frequency radio signal, finally receiving wireless signal by Surveillance center carries out data demodulates, thus make operating personnel grasp the real-time change of mud pressure.
Embodiment described in the utility model is only the description carried out preferred implementation of the present utility model; not the utility model design and scope are limited; under the prerequisite not departing from the utility model design philosophy; the various modification that in this area, engineering technical personnel make the technical solution of the utility model and improvement; protection domain of the present utility model all should be fallen into; the technology contents of the utility model request protection, all records in detail in the claims.
Claims (10)
1. an aboveground mud-pressure pulses acquisition system, it comprises mud pressure sensor (1), wireless high-speed harvester (2) and Surveillance center (3), described wireless high-speed harvester (2) is connected with described mud pressure sensor (1) by data cable, wherein, described wireless high-speed harvester (2) comprises pressure pulse Acquisition Circuit (4), first wireless radio frequency circuit (5) and high-capacity lithium battery group (6), described Surveillance center (3) comprises the second wireless radio frequency circuit (14) and computing machine (15), it is characterized in that: described pressure pulse Acquisition Circuit (4) comprises wave filter (7), high precision analog/digital conversion circuit (8), single-chip microcomputer governor circuit (9), electric power management circuit (10) and antenna, described wireless radio frequency circuit (5) comprises the second digital processing element (12) and radio-frequency (RF) transceiver (13).
2. aboveground mud-pressure pulses acquisition system according to claim 1, it is characterized in that: described wave filter (7) adopts operational amplifier to coordinate the cutoff frequency of Resistor-Capacitor Unit to be the second-order low-pass filter of 30HZ, described wave filter (7) configuration ground is in order to the low frequency spur of filtering pulse signal and interference and give described high precision analog/digital conversion circuit (8) by filtered Signal transmissions.
3. aboveground mud-pressure pulses acquisition system according to claim 2, it is characterized in that: described high precision analog/digital conversion circuit (8) adopts ADS1216 high precision analog/digital conversion microprocessor as core cell, configuration ground is used for carrying out 22 precise figures to the voltage signal of 0.5-4.5V pressure pulse and quantizes, and enters described single-chip microcomputer governor circuit (9) after the conversion from analog quantity to digital quantity by spi bus.
4. aboveground mud-pressure pulses acquisition system according to claim 3, it is characterized in that: described single-chip microcomputer governor circuit (9) comprises the first digital processing element (11), wherein, described first digital processing element (11) adopts PIC18F2585 microprocessor, configuration ground is used for carrying out software algorithm filtering to mud-pressure pulses digital signal, removes interference further.
5. aboveground mud-pressure pulses acquisition system according to claim 4, it is characterized in that: the first digital processing element (11) carries out two-way communication by the TTL serial data bus of 9600 baud rates and wireless radio frequency circuit (5), on the one hand mud pressure signal and other status signals are sent to remote monitoring center (3) by wireless radio frequency circuit (5), the instruction that another aspect is sent by wireless radio frequency circuit (5) reception Surveillance center (3), dispatches other processors and module enters dormancy or mode of operation.
6. the aboveground mud-pressure pulses acquisition system according to any one of claim 1-5, it is characterized in that: described second data processing unit (12) for core with PIC18F4680 microprocessor, is carried out data packing to the TTL serial data of pressure pulse according to private communication protocol and sends to radio-frequency (RF) transceiver (13) for wireless transmission with the two-forty of 200 byte/0.5 second.
7. aboveground mud-pressure pulses acquisition system according to claim 6, it is characterized in that: described radio-frequency (RF) transceiver (13) adopts CC1101 radio-frequency (RF) transceiver as core processor, transmit power level reaches+10dBm, peak power only has 10mW, and aerial speed reaches 15KBPS, maximum transmission distance reaches 500 meters, for meeting the high-rate radio frequency transmission demand of pulse signal.
8. aboveground mud-pressure pulses acquisition system according to claim 7, it is characterized in that: described high-capacity lithium battery group (6) configuration ground can export 5V direct current, direct current is 3.3V through electric power management circuit voltage stabilizing, is finally each chip power supply of system.
9. the aboveground mud-pressure pulses acquisition system according to claim 7 or 8, is characterized in that: described mud pressure sensor (1) is arranged on the hydraulic fill pipeline at aboveground scene.
10. aboveground mud-pressure pulses acquisition system according to claim 9, it is characterized in that: described mud pressure sensor (1) is measured the mud pressure in hydraulic fill pipeline and exported corresponding digital pulse signal according to the real-time change of mud pressure, and pulse signal is within the scope of 0.5-4.5V.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420529721.7U CN204045004U (en) | 2014-09-15 | 2014-09-15 | A kind of aboveground mud-pressure pulses acquisition system |
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| CN201420529721.7U CN204045004U (en) | 2014-09-15 | 2014-09-15 | A kind of aboveground mud-pressure pulses acquisition system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104680758A (en) * | 2014-09-15 | 2015-06-03 | 北京精密机电控制设备研究所 | Up-hole mud pressure pulse acquiring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104680758A (en) * | 2014-09-15 | 2015-06-03 | 北京精密机电控制设备研究所 | Up-hole mud pressure pulse acquiring system |
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