CN104992549B - A kind of Intelligent Drill String duplex information Transmission system and method based on adsl communication - Google Patents
A kind of Intelligent Drill String duplex information Transmission system and method based on adsl communication Download PDFInfo
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- CN104992549B CN104992549B CN201510415285.XA CN201510415285A CN104992549B CN 104992549 B CN104992549 B CN 104992549B CN 201510415285 A CN201510415285 A CN 201510415285A CN 104992549 B CN104992549 B CN 104992549B
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Abstract
The invention discloses a kind of Intelligent Drill String duplex information Transmission system and method based on adsl communication, alternating current is conveyed to down-hole power by power line and receives processing module by computer control ground electrical power conveyor module, and it is steering tool control circuit, underground control module, underground signal conditioning circuit, downhole parameters test circuit, downhole sensor, the energy supply of underground adsl carrier signal processing end that down-hole power, which receives processing module by power supply module,；Underground adsl carrier signal processing end is connect with ground adsl carrier signal processing end, and ground adsl carrier signal processing end is connect with computer.ADSL is all satisfied the requirement of Intelligent Drill String in transmission rate and transmission range, effectively improves drilling rod space efficiency utilization, using DMT modulation-demo-demodulation method, from channel self-adapting and anti-interference etc. the performance and communication reliability for improving system.
Description
Technical field
The invention belongs to logging while drilling technology field more particularly to a kind of Intelligent Drill String duplex informations based on adsl communication
Transmission system and method.
Background technique
Nowadays, although drilling measuring technology has been largely fulfilled to wellbore geometric parameter, orientation parameter, well
Lower duty parameter etc. is tested.However it cannot achieve the real time data between underground measuring and controlling equipment and ground control centre always
Communication, the parameter information of underground can not send control centre in time, and the control information on corresponding ground can not also pass in time
It is sent in the control device of underground.Therefore, underground equipment is asking of must solving with the duplex communication between ground control centre
Topic.
The prior art and its existing defect:
(1) drilling liquid pressure impulse method
Drilling liquid pressure impulse method proposes earliest, and most mature, the most widely used transmission method of development at present.Mainly
For in measurement while drilling (MWD) and well logging (LWD).It is to carry out information as transmission medium with the drilling fluid in drilling rod
Transmission.Transmission speed of the pressure wave in drilling fluid is about 1200m/s, along with the limitation and transmission process of modulation system
The loss of middle pressure wave will be demodulated effectively, and transmission rate generally only has 3-5bps, at the soonest only 30-40bps.It should
Not only speed slow delay time is long for method, and is one-way communication, is also not used under balance pressure drilling.
(2) sonic method
This transmission mode can be designed along the principle that drill string transmits according to sound wave.Sound wave is installed in drilling rod
Impulse generator, the sound wave pulse sequence that measurement data generates it are modulated, and the sound wave pulse wave modulated is along pit shaft
It passes, and is demodulated on ground in face of it, to obtain measurement data.Transmission speed of the sound wave in drill string is about 500m/s, then
In addition in the limitation and transmission process of modulation system sound wave loss, effectively to be demodulated, transmission rate generally only has
20ˉ30bps。
(3) Electromagnetic Wave Method
The it is proposed of Electromagnetic Wave Method is also relatively early, can trace back in the 1940s, China to Electromagnetic Wave Propagation in 20 generation
It records and has also carried out related research the nineties, achieve certain achievement, but do not carry out commercial applications so far.2005, Russia
The electromagnetic measurement while drilling system (EM-MWD) of release has carried out field test in Shengli Oil Field, and effect is also not fully up to expectations.Its
Basic functional principle is exactly to be transferred to the transmission that information is realized on ground along pit shaft by sending low-frequency electromagnetic wave under shaft bottom.It makes
With there is two big limitations, first is that carrier frequency can only be low frequency, generally 30Hz hereinafter, message transmission rate is difficult to improve；Second is that
Transmission depth is affected by formation resistivity, it is desirable that there is higher resistivity on stratum, therefore, it is difficult to promote the use of.
The above various methods are all wireless transmissions, and transmission speed is slow, and real-time is poor, complex process, it is difficult to be realized to underground
The real-tune TT & C of drilling parameter.
Summary of the invention
The purpose of the present invention is to provide a kind of Intelligent Drill String duplex information Transmission system and method based on adsl communication,
Aim to solve the problem that existing drilling well communication means transmission speed is slow, real-time is poor, complex process, it is difficult to realize to downhole drill parameter
Real-tune TT & C the problem of.
The invention is realized in this way a kind of Intelligent Drill String duplex information Transmission system based on adsl communication includes ground
Power Transmission module, mains supply, computer, down-hole power receive processing module, power supply module, steering tool control electricity
Road, underground control module, underground signal conditioning circuit, downhole parameters test circuit, downhole sensor, underground adsl carrier signal
Processing end, ground adsl carrier signal processing end；
The computer control ground electrical power conveyor module converts the direct current of certain voltage for alternating current and passes through electricity
The line of force is conveyed to down-hole power and receives processing module, and down-hole power receives processing module and turned direct current by power supply module
It is surveyed after voltage required for turning to steering tool control circuit, underground control module, underground signal conditioning circuit, downhole parameters
Circuit, downhole sensor, the connection of underground adsl carrier signal processing end are tried, and is energized for it；
The underground control module is believed with steering tool control circuit, underground signal conditioning circuit, underground adsl carrier
The connection of number processing end；
The downhole sensor, downhole parameters test circuit, underground signal conditioning circuit are sequentially connected with；
The underground adsl carrier signal processing end is connect by coaxial cable with ground adsl carrier signal processing end,
Ground adsl carrier signal processing end is connect with computer；
Underground adsl carrier signal processing end, ground adsl carrier signal processing end are used to complete the format to user data
Conversion, tissue framing, signal modulation send and receive demodulation.
Further, duplex information transmission includes that ground downward signaling and underground signal upload；
Ground downward signaling process are as follows: computer sends signal, and ground adsl carrier signal processing end, which is realized, sends out signal
Pretreatment before sending, coaxial cable complete the transmission of signal, and underground adsl carrier signal processing end is responsible for obtaining from coaxial cable
The number of winning the confidence, and the signal that will acquire is transferred to underground control module, underground control module is analyzed and processed data, output control
Parameter processed realizes the amendment to drilling parameter by steering tool control circuit, to realize the control to drilling trace；
Underground signal upload procedure are as follows: the parameter of downhole sensor capture characterization downhole drill operating condition, downhole parameters test
The parameter that circuit captures downhole sensor is converted into electric signal, and the electric signal is transmitted to underground signal conditioning circuit, well
Lower signal conditioning circuit is completed to improve electric signal, and underground control module is analyzed and processed the signal after conditioning, works as drilling
When desired trajectory is deviateed in track, signal is transmitted to underground adsl carrier signal processing end, underground adsl carrier by underground control module
The complete pair signals in signal processing end send relevant processing, then transfer signals to ground, ground ADSL by coaxial cable
Carrier signal processing end obtains signal from coaxial cable, and is transmitted to computer, and computer is analyzed and processed signal.
Further, the underground adsl carrier signal processing end and ground adsl carrier signal processing end include sequentially connecting
Connect and the data interface circuit of two-way communication, ATM cell conversion and interface circuit, R-S coding and decoding and DMT modulation /demodulation module,
Programmable amplifier, route driving, analog interface circuit.
Further, it includes sequentially connected calculating that the ground electrical power conveyor module and down-hole power, which receive processing module,
Machine, ground MCU, ground ADSL modulation /demodulation module, ground transmission/receiver peripheral circuit, the ground coupling circuit, underground coupling
Circuit, underground transmission/receiver peripheral circuit, underground ADSL modulation /demodulation module, underground MCU, memory/control equipment.
A kind of Intelligent Drill String duplex information transmission method based on adsl communication, comprising:
Step 1: ground MCU sends the user instruction from computer to ground ADSL modulation /demodulation module, ground
ADSL modulation /demodulation module is packaged user data according to transmission requirement, is filtered, is modulated, D/A conversion process；
Step 2: through step 1, treated that signal enters ground transmission/receiver peripheral circuit, by low-pass filtering,
After power amplification, signal is sent to signal wire network by the ground coupling circuit；
Step 3: the carrier signal from signal wire enters underground transmission/receiver peripheral circuit by underground coupling circuit,
Signal filters out the noise introduced in transmission process by bandpass filter, and is amplified according to signal strength or weakness by automatic growth control
Circuit amplifies or attenuation processing, and signal is made to meet demodulation needs；
Step 4: through step 3, treated that signal demodulates user instruction in the ADSL modulation /demodulation module of underground, leads to
It crosses underground MCU and sends the data to memory/control equipment；
Step 5: underground MCU will give underground ADSL modulation /demodulation module from memory/test equipment data transmission,
Modulation /demodulation module in underground is packaged data according to transmission requirement, is filtered, is modulated, D/A conversion process；
Step 6: through step 5, treated that signal enters areal receiver-array/transmitter peripheral circuit, by low-pass filtering,
After power amplification, signal is sent to signal wire network by underground coupling circuit；
Step 7: the signal from signal wire enters ground receiver/transmitter peripheral circuit, signal by the ground coupling circuit
The noise introduced in transmission process is filtered out by bandpass filter, and according to signal strength or weakness by amplifying electric circuit with auto-gain-controlling function
It amplifies or attenuation processing, signal is made to meet demodulation needs；
Step 8: through step 7, treated that signal demodulates test data in the ADSL modulation /demodulation module of ground, leads to
It crosses ground MCU and sends the data to computer.
The beneficial effects of the present invention are:
(1) fast, long transmission distance and high reliability are only one, wired data communication field with its transmission speed by ADSL
It is elegant.
(2) ADSL is all satisfied the requirement of Intelligent Drill String, especially ADSL in transmission rate and transmission range and is not needing
Larger distance can be transmitted under conditions of repeater, effectively improve drilling rod space efficiency utilization.
(3) ADSL uses advanced DMT modulation-demo-demodulation method, from channel self-adapting and anti-interference etc. improves system
Performance and communication reliability.
(4) ADSL no particular/special requirement in the selection of transmission line, can be used coaxial cable as transmission line.
Detailed description of the invention
Fig. 1 is that the structure of the Intelligent Drill String duplex information Transmission system provided in an embodiment of the present invention based on adsl communication is shown
It is intended to；
Fig. 2 is underground adsl carrier signal processing end and ground provided in an embodiment of the present invention adsl carrier signal processing end
Structural schematic diagram；
Fig. 3 is ground electrical power conveyor module provided in an embodiment of the present invention and down-hole power receive processing module information it is logical
Believe connection figure；
Fig. 4 is the Intelligent Drill String duplex information transmission method flow chart provided in an embodiment of the present invention based on adsl communication.
In figure: 1, ground electrical power conveyor module；2, mains supply；3, computer；4, down-hole power receives processing module；5,
Power supply module；6, steering tool control circuit；7, underground control module；8, underground signal conditioning circuit；9, downhole parameters
Test circuit；10, downhole sensor；11, underground adsl carrier signal processing end；12, ground adsl carrier signal processing end；
13, data interface circuit；14, ATM cell conversion and interface circuit；15, R-S coding and decoding and DMT modulation /demodulation module；16, journey
Control amplifier；17, route drives；18, analog interface circuit；19, ground MCU；20, ground ADSL modulation /demodulation module；21,
Face transmission/receiver peripheral circuit；22, the ground coupling circuit；23, underground coupling circuit；24, underground transmission/receiver periphery
Circuit；25, underground ADSL modulation /demodulation module；26, underground MCU；27, memory/control equipment.
Specific embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and cooperate attached drawing
Detailed description are as follows.
As shown in Figure 1, a kind of Intelligent Drill String duplex information Transmission system based on adsl communication includes ground electrical power conveying
Module 1, mains supply 2, computer 3, down-hole power receive processing module 4, power supply module 5, steering tool control circuit
6, underground control module 7, underground signal conditioning circuit 8, downhole parameters test circuit 9, downhole sensor 10, underground adsl carrier
Signal processing end 11, ground adsl carrier signal processing end 12；
The computer 3 controls ground electrical power conveyor module 1 and converts the straight of certain voltage for alternating current for mains supply 2
Galvanic electricity is simultaneously conveyed to down-hole power by power line and receives processing module 4, and down-hole power receives processing module 4 and passes through power supply
Module 5 by DC conversion be required voltage after with steering tool control circuit 6, underground control module 7, underground signal tune
Circuit 8, downhole parameters test circuit 9, downhole sensor 10, the connection of underground adsl carrier signal processing end 11 are managed, and is supplied for it
Energy；
The underground control module 7 and steering tool control circuit 6, underground signal conditioning circuit 8, underground adsl carrier
Signal processing end 11 connects；
The downhole sensor 10, downhole parameters test circuit 9, underground signal conditioning circuit 8 are sequentially connected with；
The underground adsl carrier signal processing end 11 passes through coaxial cable and ground adsl carrier signal processing end 12
Connection, adsl carrier signal processing 12 end in ground is connect with computer 3；
Underground adsl carrier signal processing end 11, ground adsl carrier signal processing end 12 are used to complete to user data
Format conversion, tissue framing, signal modulation send and receive demodulation.
Further, duplex information transmission includes that ground downward signaling and underground signal upload；
Ground downward signaling process are as follows: computer 3 sends signal, and ground adsl carrier signal processing end 12 is realized to signal
Pretreatment before transmission, coaxial cable complete the transmission of signal, and underground adsl carrier signal processing end 11 is responsible for from coaxial cable
Middle acquisition signal, and the signal that will acquire is transferred to underground control module 7, underground control module 7 is analyzed and processed data,
Amendment of the control parameter by the realization of steering tool control circuit 6 to drilling parameter is exported, to realize the control to drilling trace
System；
Underground signal upload procedure are as follows: the parameter of the capture characterization downhole drill operating condition of downhole sensor 10, downhole parameters are surveyed
The parameter that downhole sensor 10 captures is converted electric signal by examination circuit 9, and the electric signal is transmitted to underground signal conditioning electricity
Road 8, underground signal conditioning circuit 8 are completed to improve electric signal, and the signal after 7 pairs of underground control module conditionings carries out at analysis
Reason, when drilling trace deviates desired trajectory, signal is transmitted to underground adsl carrier signal processing end 11 by underground control module 7,
The complete pair signals in underground adsl carrier signal processing end 11 send relevant processing, are then transferred signals to by coaxial cable
Ground, ground adsl carrier signal processing end 12 obtains signal from coaxial cable, and is transmitted to computer 3, and computer is to 3 signals
It is analyzed and processed.
Further, the underground adsl carrier signal processing end 11 and ground adsl carrier signal processing end 12 include suitable
The data interface circuit 13 of secondary connection and two-way communication, ATM cell conversion and interface circuit 14, R-S coding and decoding and DMT modulatedemodulate
Mode transfer block 15, programmable amplifier 16, route drive 17, analog interface circuit 18.
Further, it includes sequentially connected calculating that the ground electrical power conveyor module and down-hole power, which receive processing module,
Machine 3, ground MCU19, ground ADSL modulation /demodulation module 20, ground transmission/receiver peripheral circuit 21, the ground coupling circuit
22, underground coupling circuit 23, underground transmission/receiver peripheral circuit 24, underground ADSL modulation /demodulation module 25, underground MCU26,
Memory/control equipment 27.
A kind of Intelligent Drill String duplex information transmission method based on adsl communication, comprising:
S101, ground MCU send the user instruction from computer to ground ADSL modulation /demodulation module, ground ADSL
Modulation /demodulation module is packaged user data according to transmission requirement, is filtered, is modulated, D/A conversion process；
S102, through step S101, treated that signal enters ground transmission/receiver peripheral circuit, by low-pass filtering,
After power amplification, signal is sent to signal wire network by the ground coupling circuit；
S103, the carrier signal from signal wire enter underground transmission/receiver peripheral circuit by underground coupling circuit, letter
Number the noise introduced in transmission process is filtered out by bandpass filter, and electricity is amplified by automatic growth control according to signal strength or weakness
Road amplifies or attenuation processing, and signal is made to meet demodulation needs；
S104, through step S103, treated that signal demodulates user instruction in the ADSL modulation /demodulation module of underground, leads to
It crosses underground MCU and sends the data to memory/control equipment；
S105, underground MCU will give underground ADSL modulation /demodulation module, well from memory/test equipment data transmission
Modulated demodulation module is packaged data according to transmission requirement, is filtered, is modulated, D/A conversion process；
S106, through step S105, treated that signal enters areal receiver-array/transmitter peripheral circuit, by low-pass filtering,
After power amplification, signal is sent to signal wire network by underground coupling circuit；
S107, the signal from signal wire enter ground receiver/transmitter peripheral circuit, signal warp by the ground coupling circuit
Cross bandpass filter and filter out the noise introduced in transmission process, and according to signal strength or weakness by amplifying electric circuit with auto-gain-controlling function into
Row amplification or attenuation processing make signal meet demodulation needs；
S108, through step S107, treated that signal demodulates test data in the ADSL modulation /demodulation module of ground, leads to
It crosses ground MCU and sends the data to computer.
In drilling process, for the power line in Intelligent Drill String to underground equipment supply of electrical energy, signal wire realizes that duplex information passes
Defeated, situation is crept into real-time monitoring shaft bottom.
The beneficial effects of the present invention are:
(1) fast, long transmission distance and high reliability are only one, wired data communication field with its transmission speed by ADSL
It is elegant.
(2) ADSL is all satisfied the requirement of Intelligent Drill String, especially ADSL in transmission rate and transmission range and is not needing
Larger distance can be transmitted under conditions of repeater, effectively improve drilling rod space efficiency utilization.
(3) ADSL uses advanced DMT modulation-demo-demodulation method, and this method selects to modulate base accordingly according to the characteristic of channel
Function, therefore from channel self-adapting and anti-interference etc. the performance and communication reliability for improving system.
(4) ADSL no particular/special requirement in the selection of transmission line, can be used coaxial cable as transmission line.The above institute
State and be only the preferred embodiments of the present invention, be not intended to limit the present invention in any form, it is all according to the present invention
Technical spirit any simple modification made to the above embodiment, equivalent variations and modification, belong to technical solution of the present invention
In the range of.
Claims (2)
1. a kind of Intelligent Drill String duplex information Transmission system based on adsl communication, which is characterized in that described logical based on ADSL
The Intelligent Drill String duplex information Transmission system of letter includes ground electrical power conveyor module, mains supply, computer, down-hole power receiving
Processing module, power supply module, steering tool control circuit, underground control module, underground signal conditioning circuit, downhole parameters
Test circuit, downhole sensor, underground adsl carrier signal processing end, ground adsl carrier signal processing end；
The computer control ground electrical power conveyor module converts direct current for alternating current and is conveyed to underground by power line
Electric power receives processing module；
Down-hole power receive processing module by power supply module by DC conversion be required voltage after with guiding work
Have control circuit, underground control module, underground signal conditioning circuit, downhole parameters and tests circuit, downhole sensor, underground ADSL
The connection of carrier signal processing end, energizes for it；
The underground control module and steering tool control circuit, underground signal conditioning circuit, at the adsl carrier signal of underground
Manage end connection；
The downhole sensor, downhole parameters test circuit, underground signal conditioning circuit are sequentially connected with；
The underground adsl carrier signal processing end is connect by coaxial cable with ground adsl carrier signal processing end, ground
Adsl carrier signal processing end is connect with computer；
Underground adsl carrier signal processing end, ground adsl carrier signal processing end are used to complete to turn the format of user data
It changes, framing, signal modulation is organized to send and receive demodulation；
Duplex information transmission includes that ground downward signaling and underground signal upload；
Ground downward signaling process are as follows: computer sends signal, and ground adsl carrier signal processing end is realized to before signal transmission
Pretreatment, coaxial cable complete signal transmission, underground adsl carrier signal processing end be responsible for from coaxial cable obtain letter
Number, and the signal that will acquire is transferred to underground control module, underground control module is analyzed and processed data, output control ginseng
Number realizes the amendment to drilling parameter by steering tool control circuit, to realize the control to drilling trace；
Underground signal upload procedure are as follows: the parameter of downhole sensor capture characterization downhole drill operating condition, downhole parameters test circuit
The parameter that downhole sensor is captured is converted into electric signal, and the electric signal is transmitted to underground signal conditioning circuit, underground letter
Number conditioning circuit is completed to improve electric signal, and underground control module is analyzed and processed the signal after conditioning, works as drilling trace
When deviateing desired trajectory, signal is transmitted to underground adsl carrier signal processing end, underground adsl carrier signal by underground control module
The complete pair signals in processing end send relevant processing, then transfer signals to ground, ground adsl carrier by coaxial cable
Signal processing end obtains signal from coaxial cable, and is transmitted to computer, and computer is analyzed and processed signal；
The underground adsl carrier signal processing end and ground adsl carrier signal processing end includes being sequentially connected with and two-way
The data interface circuit of letter, ATM cell conversion and interface circuit, R-S coding and decoding and DMT modulation /demodulation module, programmable amplifier,
Route driving, analog interface circuit；
The ground electrical power conveyor module and down-hole power receive processing module include sequentially connected computer, ground MCU,
Ground ADSL modulation /demodulation module, ground transmission/receiver peripheral circuit, the ground coupling circuit, underground coupling circuit, underground hair
Send/receiver peripheral circuit, underground ADSL modulation /demodulation module, underground MCU, memory/control equipment.
2. the Intelligent Drill String duplex information Transmission system based on adsl communication described in a kind of operation claim 1 is logical based on ADSL
The Intelligent Drill String duplex information transmission method of letter, which is characterized in that the Intelligent Drill String duplex information based on adsl communication
Transmission method includes:
Step 1: ground MCU sends the user instruction from computer to ground ADSL modulation /demodulation module, ground ADSL tune
Demodulation module processed is packaged user data according to transmission requirement, is filtered, is modulated, D/A conversion process；
Step 2: through step 1, treated that signal enters ground transmission/receiver peripheral circuit, by low-pass filtering, power
After amplification, signal is sent to signal wire network by the ground coupling circuit；
Step 3: the carrier signal from signal wire enters underground transmission/receiver peripheral circuit, signal by underground coupling circuit
The noise introduced in transmission process is filtered out by bandpass filter, and according to signal strength or weakness by amplifying electric circuit with auto-gain-controlling function
It amplifies or attenuation processing, signal is made to meet demodulation needs；
Step 4: through step 3, treated that signal demodulates user instruction in the ADSL modulation /demodulation module of underground, passes through well
Lower MCU sends the data to memory/control equipment；
Step 5: underground MCU will give underground ADSL modulation /demodulation module, underground from memory/test equipment data transmission
Modulation /demodulation module is packaged data according to transmission requirement, is filtered, is modulated, D/A conversion process；
Step 6: through step 5, treated that signal enters areal receiver-array/transmitter peripheral circuit, by low-pass filtering, power
After amplification, signal is sent to signal wire network by underground coupling circuit；
Step 7: the signal from signal wire enters ground receiver/transmitter peripheral circuit by the ground coupling circuit, signal passes through
Bandpass filter filters out the noise introduced in transmission process, and is carried out according to signal strength or weakness by amplifying electric circuit with auto-gain-controlling function
Amplification or attenuation processing make signal meet demodulation needs；
Step 8: through step 7, treated that signal demodulates test data in the ADSL modulation /demodulation module of ground, passes through ground
Face MCU sends the data to computer.
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| CN107218025B (en) * | 2017-05-04 | 2023-08-01 | 中国石油天然气集团有限公司 | Multi-stage multi-channel underground low-power-consumption control execution system and control method |
| CN107060734B (en) * | 2017-06-12 | 2023-08-01 | 哈尔滨理工大学 | Device and method for on-line acquisition of liquid level information of submersible reciprocating pumping unit |
| CN109653735B (en) * | 2019-03-01 | 2022-11-15 | 西南石油大学 | Drilling signal downloading device and method based on current loop |
| CN113530520B (en) * | 2020-04-17 | 2023-09-12 | 中石化石油工程技术服务有限公司 | Drill string bidirectional torsion control system and method |
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