CN101033687A - Extra-low frequency or ultra-low frequency electromagnetic wave while-drilling two-ways remote controlling sensing system - Google Patents
Extra-low frequency or ultra-low frequency electromagnetic wave while-drilling two-ways remote controlling sensing system Download PDFInfo
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- CN101033687A CN101033687A CNA2007100516833A CN200710051683A CN101033687A CN 101033687 A CN101033687 A CN 101033687A CN A2007100516833 A CNA2007100516833 A CN A2007100516833A CN 200710051683 A CN200710051683 A CN 200710051683A CN 101033687 A CN101033687 A CN 101033687A
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Abstract
The invention relates to an information transmission system of electromagnetic following drill. It is a double remote passing system for extremely low frequency or ultra-low frequency electromagnetic following drill. It is composed of a computer, a machine above well and a machine below well. It is characterized in that: the antenna of machine above well contains a metal stick and derrick is part of it. The first signal input port of received signal amplification on receiver above well connects with and its second signal input port connects with by wires. The antenna under well contains insulating layer, metal tube and drill rod. The first signal input port of emitting power amplification under well connects with and its second signal input port connects with by wires. The machine above well contains an emitting device and the machine below well contains a receiving device. The invention has double information transmission and far disseminating distance.
Description
Technical field
When the present invention relates to various creeping into such as geological prospecting, oil, coalfield, metallurgy with the system of boring the wireless transmission down-hole information.
Background technology
In the drilling process of modern Geological Engineering, mine or oil, to in time understand drilling process information, drilling track, the situation on the stratum of boring, these situations according to the down-hole in time make a policy, or in time adjust, control down-hole equipment and carry out work according to the wish of driller.For reaching this purpose, solve the problem of creeping into the information bidirectional transmission with regard to needs.
Present drilling information transmission channel has two kinds of wireless transmission and wire transmission.The wire transmission method is to connect downhole instrument with cable, and the information measured downhole instrument arrives ground by cable transmission; Also can be transferred to downhole instrument or instrument to control information by cable.But the drilling rod that cable can be rotated in drilling process strand is broken or is rubbed, and uses very inconvenient.So the developing direction of drilling information transmission technology is a wireless transmission.
At present, common wireless transmission method has two kinds: a kind of is that mud-pulse is with boring telemetry; Another kind is the electromagnetic wave while-drilling telemetry.Mud-pulse is with the instantaneous obstruction of method of machinery or opens the mud flow passage producing the method for hydraulic impulse, comes Data transmission or information by hydraulic impulse.This method Data transmission is slower, and only could operate as normal when the mud proper flow.Modern times creep into the information that requires to transmit and get more and more; In air drilling or underbalance are crept into, can't produce mud-pulse.For satisfying these needs generations and having developed the electromagnetic wave while-drilling measuring method.
But electromagnetic wave while-drilling measurement at present exists following shortcoming or deficiency:
1, mostly present electromagnetic wave while-drilling information transmission is unidirectional, promptly can only reach ground to the information of down-hole, can not pass to downhole tool to control information from ground.
2, the restriction of radiation pattern and transmission range aspect.Electromagnetic wave is when earth-layer propagation, and wave frequency is high more, and the formation absorption rate is high more; Frequency is low more, and then face of land reception is good more, and propagation distance is far away more in other words.Order adopts the mode of transmitting coil induced signal to launch its frequency of electromagnetic wave and usually is restricted, and very high for the very low frequencies (frequency is that 30Hz is following) or the number of turn requirement of ultralow frequency (frequency is 30-300Hz) electromagnetic wave transmitting coil, it is bigger to consume energy; When the drilling tool limited space, electromagnetic wave propagation distance will be restricted.
Summary of the invention
The object of the present invention is to provide a kind of bidirectional transfer of information, propagation distance very low frequencies far away more or the two-way the spread of the rumours of ultra-low frequency electromagnetic wave while-drilling system.
To achieve these goals, technical scheme of the present invention is: the two-way the spread of the rumours of a kind of very low frequencies or ultra-low frequency electromagnetic wave while-drilling system, it is made up of computer, aboveground machine and down-hole machine, aboveground machine comprises aboveground receiving system, aboveground receiving system is made up of changeover switch, aboveground receiving interface module, aboveground reception single-chip microcomputer, aboveground reception digital filter circuit, aboveground reception D/A converting circuit, aboveground received signal amplifying circuit, aboveground antenna, and aboveground receiving system links by changeover switch and computer; The down-hole machine comprises silo launcher, silo launcher is made up of down-hole transmission interface module, down-hole emission single-chip microcomputer, down-hole emission D/A converting circuit, down-hole transmitting power amplifying circuit, down-hole antenna, and device for subsurface measuring and down-hole transmission interface module link; It is characterized in that: aboveground antenna comprises metal bar 7, boring tower 1 constitutes the some of aboveground antenna, during use, metal bar is imbedded underground, first signal input interface of the aboveground received signal amplifying circuit of aboveground receiving system is linked to each other with metal bar by lead, and the secondary signal input interface of aboveground received signal amplifying circuit is connected with boring tower 1 by lead; The down-hole antenna comprises insulating layer 10, metal tube 11, drilling rod 3 constitutes the some of down-hole antenna, insulating layer 10 is enclosed within on the drilling rod 3 and is mutually bonding with drilling rod 3, metal tube 11 is enclosed within on the insulating layer 10 and is mutually bonding with insulating layer 10, first output interface of down-hole transmitting power amplifying circuit is connected with metal tube 11 by lead 12, and second output interface of down-hole transmitting power amplifying circuit is connected with drilling rod 3 by lead;
Aboveground machine comprises aboveground emitter, aboveground emitter comprises aboveground transmission interface module, aboveground emission single-chip microcomputer, aboveground emission D/A converting circuit, aboveground transmitting power amplifying circuit, the input of the output of aboveground transmission interface module and aboveground emission single-chip microcomputer links, the input of the output of aboveground emission single-chip microcomputer and aboveground emission D/A converting circuit links, and the input of the output of aboveground emission D/A converting circuit and aboveground transmitting power amplifying circuit links; The input of aboveground transmission interface module links by changeover switch and computer, and first output interface of aboveground emission D/A converting circuit is connected with metal bar 7 by lead, and second output interface of aboveground emission D/A converting circuit is connected with boring tower 1 by lead;
The down-hole machine comprises the down-hole receiving system, the down-hole receiving system comprises that down-hole receiving interface module, down-hole receive single-chip microcomputer, the down-hole receives digital filter circuit, down-hole reception D/A converting circuit, down-hole received signal amplifying circuit, first signal input interface of down-hole received signal amplifying circuit is connected with metal tube 11 by lead, and the secondary signal input interface of down-hole received signal amplifying circuit is connected with drilling rod 3 by lead; The input that the output of down-hole received signal amplifying circuit and down-hole receive D/A converting circuit links, the down-hole receives the output of D/A converting circuit and the input of down-hole reception digital filter circuit links, the down-hole receives the output of digital filter circuit and the input of down-hole reception single-chip microcomputer links, the down-hole receives the output of single-chip microcomputer and the input of down-hole receiving interface module links, and the output and the down-hole transmission interface module of down-hole receiving interface module link.
The invention has the beneficial effects as follows:
1, adopt first output interface of the down-hole transmitting power amplifying circuit of silo launcher to be connected with metal tube 11 by lead 12, second output interface of down-hole transmitting power amplifying circuit is connected with drilling rod 3 by lead; First signal input interface of the aboveground received signal amplifying circuit of aboveground receiving system is linked to each other with metal bar by lead, and the secondary signal input interface of aboveground received signal amplifying circuit is connected with boring tower 1 by lead; Promptly adopt direct-coupled method, do not use coil and directly the signal of telecommunication is connected on the conductor as the two poles of the earth, can transmit and receive the ultralow frequency of 1-100Hz and the electromagnetic wave signal of very low frequencies, propagation distance is far away more.The shared aboveground antenna of aboveground emitter and aboveground receiving system, the shared down-hole of down-hole receiving system and silo launcher antenna adopts direct-coupled method, can transmit and receive the ultralow frequency of 1-100Hz and the electromagnetic wave signal of very low frequencies, and propagation distance is far away more.
2, aboveground machine of the present invention adopts and is made up of aboveground receiving system and aboveground emitter, and the down-hole machine is made up of silo launcher and down-hole receiving system; Can realize bidirectional transfer of information.
3, the down-hole antenna adopts the utmost point of drilling rod as the down-hole antenna, and metal tube 11 has utilized the utmost point of drilling rod as the down-hole antenna as another utmost point of down-hole antenna, and it is simple in structure.Adopt parallel double pipe structure formula transmitting antenna, interior pipe adopts common drilling rod with guaranteed strength, outer tube adopts common steel tube, middle fill insulant (material of insulating layer 10 is a glass fiber reinforced plastic), middle fill insulant does not need to have very high antitorque, resistance to compression and tensile strength as drilling rod, this technology does not need the special insulation material, processing easily under current material and the technological level condition at home.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is a user mode schematic diagram of the present invention
Fig. 3 is the structural representation of down-hole of the present invention antenna
Among the figure: 1-boring tower, 2-boring, 3-drilling rod, 4-down-hole machine, 5-drill bit, 6-down-hole antenna, 7-metal bar, the aboveground machine of 8-, 9-computer, 10-insulating layer, 11-metal tube, 12-lead.
The specific embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the two-way the spread of the rumours of a kind of very low frequencies or ultra-low frequency electromagnetic wave while-drilling system, it is made up of computer 9, aboveground machine 8 and down-hole machine 4.Aboveground machine 8 is made up of aboveground receiving system and aboveground emitter; Aboveground receiving system is made up of changeover switch, aboveground receiving interface module, aboveground reception single-chip microcomputer, aboveground reception digital filter circuit, aboveground reception D/A converting circuit, aboveground received signal amplifying circuit, aboveground antenna; Aboveground antenna comprises metal bar 7, boring tower 1 constitutes the some of aboveground antenna, during use, metal bar is imbedded underground, first signal input interface of aboveground received signal amplifying circuit is linked to each other with metal bar by lead, and the secondary signal input interface of aboveground received signal amplifying circuit is connected with boring tower 1 by lead; Boring tower 1, drilling rod form link circuit (drilling rod 3 links with boring tower 1); The output of aboveground received signal amplifying circuit links to each other with the input of aboveground reception D/A converting circuit, the output of aboveground reception D/A converting circuit links to each other with the input of aboveground reception digital filter circuit, the output of aboveground reception digital filter circuit links to each other with the input of aboveground reception single-chip microcomputer, the output of aboveground reception single-chip microcomputer links to each other with the input of aboveground receiving interface module, and the output of aboveground receiving interface module links by changeover switch and computer;
Aboveground emitter comprises aboveground transmission interface module, aboveground emission single-chip microcomputer, aboveground emission D/A converting circuit, aboveground transmitting power amplifying circuit, the input of the output of aboveground transmission interface module and aboveground emission single-chip microcomputer links, the input of the output of aboveground emission single-chip microcomputer and aboveground emission D/A converting circuit links, and the input of the output of aboveground emission D/A converting circuit and aboveground transmitting power amplifying circuit links; The input of aboveground transmission interface module links by changeover switch and computer, the shared aboveground antenna of aboveground emitter and aboveground receiving system, first output interface of aboveground emission D/A converting circuit is connected with metal bar 7 by lead, and second output interface of aboveground emission D/A converting circuit is connected with boring tower 1 by lead;
The down-hole machine is made up of silo launcher and down-hole receiving system; Silo launcher is made up of down-hole transmission interface module, down-hole emission single-chip microcomputer, down-hole emission D/A converting circuit, down-hole transmitting power amplifying circuit, down-hole antenna; The down-hole antenna comprises insulating layer 10, metal tube 11, and drilling rod 3 constitutes the some of down-hole antennas, and insulating layer 10 is enclosed within on the drilling rod 3 and is mutually bonding with drilling rod 3, and metal tube 11 is enclosed within on the insulating layer 10 and is mutually bonding with insulating layer 10; Device for subsurface measuring (as the deviational survey inserting tube) links with the input of down-hole transmission interface module, the input of the output of down-hole transmission interface module and down-hole emission single-chip microcomputer links, the input of the output of down-hole emission single-chip microcomputer and down-hole emission D/A converting circuit links, the output of down-hole emission D/A converting circuit and the input of down-hole transmitting power amplifying circuit link, first output interface of down-hole transmitting power amplifying circuit is connected with metal tube 11 by lead 12, and second output interface of down-hole transmitting power amplifying circuit is connected with drilling rod 3 by lead;
The down-hole receiving system comprises that down-hole receiving interface module, down-hole receive single-chip microcomputer, the down-hole receives digital filter circuit, down-hole reception D/A converting circuit, down-hole received signal amplifying circuit, the shared down-hole of down-hole receiving system and silo launcher antenna, first signal input interface of down-hole received signal amplifying circuit is connected with metal tube 11 by lead, and the secondary signal input interface of down-hole received signal amplifying circuit is connected with drilling rod 3 by lead; The input that the output of down-hole received signal amplifying circuit and down-hole receive D/A converting circuit links, the down-hole receives the output of D/A converting circuit and the input of down-hole reception digital filter circuit links, the down-hole receives the output of digital filter circuit and the input of down-hole reception single-chip microcomputer links, the down-hole receives the output of single-chip microcomputer and the input of down-hole receiving interface module links, and the output and the down-hole transmission interface module of down-hole receiving interface module link.
The changeover switch of aboveground receiving system, aboveground receiving interface module, aboveground reception single-chip microcomputer, aboveground reception digital filter circuit, aboveground reception D/A converting circuit, aboveground received signal amplifying circuit, the aboveground transmission interface module of aboveground emitter, aboveground emission single-chip microcomputer, aboveground emission D/A converting circuit, aboveground transmitting power amplifying circuit, the down-hole transmission interface module of silo launcher, down-hole emission single-chip microcomputer, down-hole emission D/A converting circuit, down-hole transmitting power amplifying circuit, the down-hole receiving interface module of down-hole receiving system, the down-hole receives single-chip microcomputer, the down-hole receives digital filter circuit, the down-hole receives D/A converting circuit, down-hole received signal amplifying circuit all can adopt known technology.
Down-hole antenna 6 is a transmitting antenna when the down-hole machine transmits, and is reception antenna when received signal.The ultralow frequency that data that silo launcher is gathered the down-hole and frequency are 1-100Hz and the electromagnetic wave of very low frequencies are modulated into carrier signal, through digital-to-analogue conversion and power amplification, the carrier wave signal of telecommunication is transferred to ground by drilling rod and metal tube 11 emission electromagnetic waves through the stratum; Signal is transferred to the face of land through the stratum and receives (metal bar 7 receives), and the signal that receives is handled in aboveground machine 8, also comprises reception in the aboveground machine 8 and launches two kinds of functions; When carrying out the signal reception, signal enters computer 9 by interface module and shows and processing after amplification, analog-to-digital conversion, digital filtering, signal demodulation.Then opposite when the firing order of down-hole by ground, by computer 9 output orders, send by aboveground antenna through processes such as aboveground emitter modulation signal, digital-to-analogue conversion, signal amplifications; Because aboveground emitter volume is not subjected to spatial constraints, receive signal comparatively clearly for making the down-hole machine, big of the power ratio down-hole machine of aboveground machine are generally 7-10 doubly more.
Application example: the two-way the spread of the rumours of this electromagnetic wave while-drilling system is connected with down-hole deviational survey inserting tube, promptly forms the electromagnetic wave while-drilling measuring system.During drilling well, down-hole deviational survey inserting tube is measured hole angle (drift angle) and the azimuth of boring in the inclinometer position, and these data can be sent to ground in real time by the two-way the spread of the rumours of electromagnetic wave while-drilling system, whether have produced hole deviation so that the drilling implementer in time judges the down-hole.
The present invention can boring creep in the hole information, formation information real-time be transferred to ground, also can send the action of drilling tool in the instruction control hole or drilling tool parts simultaneously from ground.During from Ground Control down-hole equipment or the action of drilling tool parts, the down-hole receiving interface module of the two-way the spread of the rumours of this electromagnetic wave while-drilling system is connected with down-hole equipment or drilling tool parts.
Technical characterstic of the present invention is:
1, can be used in the interior deep hole of 5000m, realize bidirectional transfer of information.
2, adopt the dipole emission antenna, adapt to the emission of ultralow frequency deep hole and receive.
3, down-hole antenna has stronger emissivities, makes easily again.
The present invention is fit to the deep well drilling measurement while drilling.
Claims (1)
1. very low frequencies or the two-way the spread of the rumours of ultra-low frequency electromagnetic wave while-drilling system, it is made up of computer, aboveground machine and down-hole machine, aboveground machine comprises aboveground receiving system, aboveground receiving system is made up of changeover switch, aboveground receiving interface module, aboveground reception single-chip microcomputer, aboveground reception digital filter circuit, aboveground reception D/A converting circuit, aboveground received signal amplifying circuit, aboveground antenna, and aboveground receiving system links by changeover switch and computer; The down-hole machine comprises silo launcher, silo launcher is made up of down-hole transmission interface module, down-hole emission single-chip microcomputer, down-hole emission D/A converting circuit, down-hole transmitting power amplifying circuit, down-hole antenna, and device for subsurface measuring and down-hole transmission interface module link; It is characterized in that: aboveground antenna comprises metal bar (7), boring tower (1) constitutes the some of aboveground antenna, during use, metal bar is imbedded underground, first signal input interface of the aboveground received signal amplifying circuit of aboveground receiving system is linked to each other with metal bar by lead, and the secondary signal input interface of aboveground received signal amplifying circuit is connected with boring tower (1) by lead; The down-hole antenna comprises insulating layer (10), metal tube (11), drilling rod (3) constitutes the some of down-hole antenna, it is last and mutually bonding with drilling rod (3) that insulating layer (10) is enclosed within drilling rod (3), it is last and mutually bonding with insulating layer (10) that metal tube (11) is enclosed within insulating layer (10), first output interface of down-hole transmitting power amplifying circuit is connected with metal tube (11) by lead (12), and second output interface of down-hole transmitting power amplifying circuit is connected with drilling rod (3) by lead;
Aboveground machine comprises aboveground emitter, aboveground emitter comprises aboveground transmission interface module, aboveground emission single-chip microcomputer, aboveground emission D/A converting circuit, aboveground transmitting power amplifying circuit, the input of the output of aboveground transmission interface module and aboveground emission single-chip microcomputer links, the input of the output of aboveground emission single-chip microcomputer and aboveground emission D/A converting circuit links, and the input of the output of aboveground emission D/A converting circuit and aboveground transmitting power amplifying circuit links; The input of aboveground transmission interface module links by changeover switch and computer, first output interface of aboveground emission D/A converting circuit is connected with metal bar (7) by lead, and second output interface of aboveground emission D/A converting circuit is connected with boring tower (1) by lead;
The down-hole machine comprises the down-hole receiving system, the down-hole receiving system comprises that down-hole receiving interface module, down-hole receive single-chip microcomputer, the down-hole receives digital filter circuit, down-hole reception D/A converting circuit, down-hole received signal amplifying circuit, first signal input interface of down-hole received signal amplifying circuit is connected with metal tube (11) by lead, and the secondary signal input interface of down-hole received signal amplifying circuit is connected with drilling rod (3) by lead; The input that the output of down-hole received signal amplifying circuit and down-hole receive D/A converting circuit links, the down-hole receives the output of D/A converting circuit and the input of down-hole reception digital filter circuit links, the down-hole receives the output of digital filter circuit and the input of down-hole reception single-chip microcomputer links, the down-hole receives the output of single-chip microcomputer and the input of down-hole receiving interface module links, and the output and the down-hole transmission interface module of down-hole receiving interface module link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100516833A CN100501121C (en) | 2007-03-16 | 2007-03-16 | Extra-low frequency or ultra-low frequency electromagnetic wave two-ways remote controlling sensing system while-drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100516833A CN100501121C (en) | 2007-03-16 | 2007-03-16 | Extra-low frequency or ultra-low frequency electromagnetic wave two-ways remote controlling sensing system while-drilling |
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| Publication Number | Publication Date |
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| CN101033687A true CN101033687A (en) | 2007-09-12 |
| CN100501121C CN100501121C (en) | 2009-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100516833A Expired - Fee Related CN100501121C (en) | 2007-03-16 | 2007-03-16 | Extra-low frequency or ultra-low frequency electromagnetic wave two-ways remote controlling sensing system while-drilling |
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| CN102251769A (en) * | 2011-06-08 | 2011-11-23 | 刘新元 | Electromagnetic wave signal transmission method and system of measurement while drilling |
| CN101545374B (en) * | 2009-04-30 | 2013-04-10 | 中国石油集团川庆钻探工程有限公司 | Relay transmission measurement-while-drilling system |
| CN103061682A (en) * | 2012-12-31 | 2013-04-24 | 电子科技大学 | Single section drill rod for achieving TEM (transverse electromagnetic) wave transmission |
| CN101713286B (en) * | 2009-11-04 | 2013-05-01 | 中国石油大学(北京) | Electromagnetic system for detecting distance between adjacent wells while drilling |
| CN101392642B (en) * | 2008-10-31 | 2013-06-19 | 西南石油大学 | Underground data wireless transmission method of gas drilling while drilling |
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| CN101392642B (en) * | 2008-10-31 | 2013-06-19 | 西南石油大学 | Underground data wireless transmission method of gas drilling while drilling |
| CN101545374B (en) * | 2009-04-30 | 2013-04-10 | 中国石油集团川庆钻探工程有限公司 | Relay transmission measurement-while-drilling system |
| CN101692301B (en) * | 2009-10-12 | 2011-06-22 | 哈尔滨工程大学 | Method for transmitting very low frequency signal of oil-vapor pipe magnet leakage detector |
| CN101713286B (en) * | 2009-11-04 | 2013-05-01 | 中国石油大学(北京) | Electromagnetic system for detecting distance between adjacent wells while drilling |
| CN102251769A (en) * | 2011-06-08 | 2011-11-23 | 刘新元 | Electromagnetic wave signal transmission method and system of measurement while drilling |
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| CN103061682B (en) * | 2012-12-31 | 2015-08-19 | 电子科技大学 | Realize the single hop drilling rod of TEM ripple transmission |
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| CN106593419A (en) * | 2016-12-13 | 2017-04-26 | 中国石油天然气股份有限公司 | Middle-deep well wireless two-way communication system based electromagnetic waves |
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| CN113216943A (en) * | 2021-05-24 | 2021-08-06 | 电子科技大学 | Wireless electromagnetic wave transmission receiving and transmitting system for logging-while-drilling signals |
| CN113593213A (en) * | 2021-09-05 | 2021-11-02 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Ground transmitting device and method suitable for wireless remote measuring system for drilling |
| CN115790673A (en) * | 2023-02-06 | 2023-03-14 | 国机传感科技有限公司 | Extremely-low-frequency electromagnetic wave bidirectional magnetic sensing device and method |
| CN115790671A (en) * | 2023-02-06 | 2023-03-14 | 国机传感科技有限公司 | Full-duplex magnetic sensing device and method for extremely-low-frequency electromagnetic waves |
| CN115790672A (en) * | 2023-02-06 | 2023-03-14 | 国机传感科技有限公司 | Extremely-low-frequency electromagnetic wave half-duplex magnetic sensing system and method |
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