CN102777170B - Electromagnetic wave transmission method for logging instrument information - Google Patents
Electromagnetic wave transmission method for logging instrument information Download PDFInfo
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- CN102777170B CN102777170B CN201210283472.3A CN201210283472A CN102777170B CN 102777170 B CN102777170 B CN 102777170B CN 201210283472 A CN201210283472 A CN 201210283472A CN 102777170 B CN102777170 B CN 102777170B
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Abstract
The electromagnetic wave transmission method of the logging instrument information, adopt the wireless transmission logging data of the electromagnetic wave, there is wireless transmitting/receiving arrangement connected with information acquisition device of the logging instrument at the logging instrument place underground, the data gathered by information acquisition device underground are sent to the ground through the wireless transmitting/receiving arrangement, the aboveground instrument on the ground decodes and reduces various dynamic data after receiving, then the data information is transmitted to the data processing terminal to analyze and display; the underground logging instruments are communicated through wireless communication, and each instrument is provided with a wireless transmitting/receiving device which can be used for the mutual communication among the instruments and also used for the communication of the aboveground instruments; and each underground logging instrument is provided with an independent power supply system and a sensor data acquisition system. The invention not only ensures the independence of the instruments, but also solves the problem of communication among the instruments well, realizes the integral communication of the instruments, and each instrument is provided with an independent power supply system, thereby avoiding that the use of other instruments is influenced after one instrument has a problem.
Description
Technical field
The present invention relates to logging technique field, be specifically related to a kind of electromagnetic transmission method of logger information.
Background technology
In recent years, increasingly sophisticated along with oil-gas exploration and development object. the difficulty of exploration and development is increasing, and some subtle pools, complex reservoir become the emphasis of exploration and development.Petroleum Engineering Technological Service market in overseas, does not have well logging during ability. is difficult to participate in marine technical service bidding.In the face of complicated exploration object, effectively to identify oil, the gas-bearing formation in reservoir. use the conventional logging techniques and methods that traditional resolution ratio is lower, intuitive is poor, multi-solution appears in explanation oil-gas Layer, the needs of exploration production can not be met, in the urgent need to deep investigation, high-resolution and high-precision logging instrument series and log interpretation method.Resistivity logging while drilling well logging is under oil-gas exploration faces very complicated geological conditions, for improve the recovery ratio of oil gas, oil-gas Layer Drilling ratio, improve drilling well overall efficiency, reduce drilling well total cost and a technology growing up.Along with the needs of domestic exploration and development self-growth, the technology proposed drilling engineering is also more and more higher, logging while drilling technology combines closely geologic parameter and drilling engineering parameter, be the combination of the specialties such as geology, drilling well, well logging, the polytechnic extensive use of this drilling well has qualitative leap by making the drilling engineering technology of China.Logging while drilling apparatus can shorten stratum to greatest extent from boring the time reaching measurement, reflect strata condition more accurately and formation evaluation can be carried out in real time to well logging during, the track of timely correction wellbore formation, has extraordinary effect to the development evaluation of oil-gas Layer.
Due to the development of the information transmission technology, treatment technology and the progress of Material Field technology, the logging while drilling technology speed of development is accelerated further.Promotion also has more method to join the ranks of well logging during by the development of logging technique.Along with the development with the technology of boring, the cost of well logging during will significantly lower, and can constantly expand in the field of exploration phase (open hole well) well logging during replacement cables well logging.Develop along with economy is maked rapid progress, new drilling technology emerges in an endless stream, and further promotes the development of logging while drilling technology simultaneously.The LWD instrument that the late 20th century occurs, can provide research down-hole geological environment and the data needed for drilling process.
In order to ensure the independence between each instrument, use only joint formula Instrument Design, but due to can not communication between each instrument in existing logger, the communication of software on ground and downhole instrument is caused comparatively to disperse, and due to the unified power supply of instrument string, some instrument power consumption is comparatively large, once wherein a certain instrument goes wrong, will affect the operation of Other Instruments.
Along with the fast development of the special process drilling technologies such as directional well, horizontal well, Multilateral Wells and extended horizontal well and the increasing of original oil zone Complex Blocks and oil sheet exploitation dynamics, the weak point of traditional mud-pulse transmission means is more and more outstanding.Although mud-pulse transmission means technology is widely used, but message transmission rate is slower, information content is less, signal transmission is subject to the quality of drilling fluid and the inhomogeneities impact of pump. require sand content≤1% of drilling fluid, air content≤7%. are when using compressibility drilling medium, pressure wave signal can be caused to be out of shape, so applicability is very poor under under balance pressure drilling condition.Electromagnetic transmission mode is by reflection well-bottom trace direction, and the low-frequency electromagnetic wave signal of formation characteristics parameter is sent to ground. in drilling process, drilling rod, the stratum of the exposed borehole wall and the space between them and surrounding constitutes electromagnetic transmission passage jointly
Electromagnetic wave is from the peripherad infinite space radiation of emission source, being received by the earth's surface antenna being fixed on rig other. it does not need mud as signal vehicle, require lower to the quality of drilling fluid and the inhomogeneities of drilling pump, so data transmission capabilities is stronger. its advantage does not need mechanical receiving system, the stability of a system is good, has better compliance under balance pressure drilling technique.Its shortcoming is: background noise is comparatively large on the impact of signal, and the absorption of signal and the change of ground resistance is caused to the decay of signal along with rock stratum, causes transtation mission circuit complexity to improve.At present, these problems have been obtained for good solution.The large problem of background noise, by the method for more advanced programmable filter, makes background noise obtain and suppresses thoroughly.The problem that signal attenuation is large adopts automatic impedance adaptive system to solve.Electromagnetic wave is applied to safety of coal mines the earliest and military aspect .. Russia comparatively early carries out one of country of electromagnetic measurement while drilling system development, and they call electromagnetic wave passage down-hole telemetry system mwd system. and successfully utilize electromagnetic wave MWD technical transmission underground survey signal extensively to be utilized with brill instrument abroad.Domesticly also to feel free to try, the hole deviation utilizing MWD technology that exploring tube sensor is measured, orientation, gravity and, gravity toolface angle, tool face azimuth, temperature, cell voltage and formation parameter real-time be sent to ground with electromagnetic wave.And breakthrough has been had in remote-control romote-sensing and transmitted in both directions, owing to have employed bi-directional electromagnetic ripple Radio Transmission Technology, facilitate the manipulation to downhole instrument greatly, remote control can be carried out to underground equipment, also self-inspection can be carried out to electromagnetic wave channel easily, telemanagement is implemented to power supply, effectively improves power utilization rate.
Summary of the invention
The object of the invention is to a kind of electromagnetic transmission method proposing logger information, solve between each instrument of logger string and can not communicate with one another, the communication of software on ground and downhole instrument is caused comparatively to disperse, install, move, overhaul the problem of effort, and due to the unified power supply of existing instrument string, some instrument power consumption is comparatively large, once wherein a certain instrument goes wrong, will affect the problem of the operation of Other Instruments.
For reaching this object, the present invention by the following technical solutions:
The electromagnetic transmission method of logger information, adopt electromagnetic wave wireless transmission log data, adopt bidirectional operation mode, the logger place of down-hole is provided with wireless transmission/reception device, the wireless transmission/reception device of down-hole is connected to information collecting device, the data that the information collecting device of down-hole collects are sent to ground by wireless transmission/reception device, after being received by the aboveground instrument on ground, decoded back goes out various dynamic data, and data information is sent to data processing terminal and carries out analysiss and show afterwards.
Preferably, by wireless communication link between each logger of down-hole, each instrument is provided with can be used for instrument intercommunication simultaneously also for the wireless transmission/reception device to aboveground instrument communication.
Preferably, data are sent to serial ports of computers and carry out analyzing, show, print by described aboveground instrument.
Preferably, each logger place of described down-hole is provided with independently power-supply system, and is provided with wireless transmission/reception device and sensor data acquisition system.
Preferably, each logger in described down-hole is also provided with the automatic adaptive system of impedance.
Preferably, described power-supply system adopts rechargeable battery powered.
Preferably, the data transmission blocks of wireless transmission/reception device can adopt pwm pulse width modulation mode or burst pulse modulation system or sine wave transmissions modulation system.
The data that the present invention adopts electromagnetic wave wireless transmission method to realize between logger are transmitted, and both ensure that the independence of instrument, and have well solved again the communication issue between instrument, achieve the global communication of instrument; Each instrument all arranges independently electric power system, adopts rechargeable battery powered, avoids the use having influence on other instrument after an instrument goes wrong.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present invention.
In figure:
1, aboveground instrument; 2, logger; 3, information collecting device; 4, wireless transmission/reception device.
Detailed description of the invention
Technical scheme of the present invention is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.
As shown in Figure 1, give the structure principle chart of the specific embodiment of the invention, the present invention adopts electromagnetic wave wireless transmission log data, and be designed to bidirectional operation mode, the logger string of down-hole can have multiple logger 2, downhole wireless transmission/reception 4 is provided with at each logger 2 place, the wireless transmission/reception device 4 of down-hole is connected to information collecting device 3, information collecting device 3 is the various kinds of sensors data collecting system that logger 2 is installed, the data that the information collecting device 3 of down-hole collects are sent to ground by downhole wireless transmission/reception 4 interval or continuous print, receive rear decoded back by the aboveground instrument 1 on ground and go out various dynamic data, afterwards data information be sent to computer digital animation terminal carry out analysis display or print,
Also by electromagnetic wave wireless communication link between each logger 2 of down-hole, each logger 2 all arranges wireless transmission/reception device, and be provided with independently power-supply system separately, adopt rechargeable battery powered, and adopt high-temperature-reslithium lithium battery, improve the safety of use, and avoid because each instrument consumption electric energy is different, when some instrument power consumption are wherein larger, have influence on whole well logging, improve logging efficiency; The each logger in described down-hole 2 is also provided with the automatic adaptive system of impedance;
Wireless transmission/reception device wherein on logger 2 comprises wireless transmission system and antenna system, and the data transmission blocks of wireless transmission system has three kinds of modulation systems to adopt: one is pwm pulse width modulation mode; Two is burst pulse modulation systems, and the instantaneous ultrasonic energy of electromagnetic energy is sent, and maximum advantage saves electric energy, can save generator; Three is traditional sine wave transmissions modulation systems, and adopt in this way, receiving circuit is fairly simple, and antijamming capability is better.
The data that the present invention adopts electromagnetic wave wireless transmission method to realize between logger are transmitted, and both ensure that the independence of instrument, and have well solved again the communication issue between instrument, achieve the global communication of instrument; Each instrument all arranges independently electric power system, adopts rechargeable battery powered, avoids the use having influence on other instrument after an instrument goes wrong.
Claims (6)
1. the electromagnetic transmission method of logger information, it is characterized in that: adopt electromagnetic wave wireless transmission log data, adopt bidirectional operation mode, the logger place of down-hole is provided with wireless transmission/reception device, wireless transmission/reception device is connected to the information collecting device of logger, wireless communication link is passed through between each logger of down-hole, each instrument is provided with can be used for instrument intercommunication simultaneously also for the wireless transmission/reception device to aboveground instrument communication, each logger place of down-hole is provided with independently power-supply system, the data that the information collecting device of down-hole collects are sent to ground by wireless transmission/reception device, after being received by the aboveground instrument on ground, decoded back goes out various dynamic data, afterwards data information be sent to data processing terminal carry out analysis display.
2. the electromagnetic transmission method of logger information according to claim 1, is characterized in that, data are sent to serial ports of computers and carry out analyzing, show, print by described aboveground instrument.
3. the electromagnetic transmission method of logger information according to claim 1, is characterized in that, each logger place of described down-hole is provided with wireless transmission/reception device and sensor data acquisition system.
4. the electromagnetic transmission method of logger information according to claim 3, is characterized in that, each logger in described down-hole is also provided with the automatic adaptive system of impedance.
5. the electromagnetic transmission method of logger information according to claim 3, is characterized in that, described power-supply system adopts rechargeable battery powered.
6. according to the electromagnetic transmission method of described logger information arbitrary in claim 1 to 5, it is characterized in that, the data transmission blocks of wireless transmission/reception device adopts pwm pulse width modulation mode or burst pulse modulation system or sine wave transmissions modulation system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210283472.3A CN102777170B (en) | 2012-08-09 | 2012-08-09 | Electromagnetic wave transmission method for logging instrument information |
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| CN201210283472.3A CN102777170B (en) | 2012-08-09 | 2012-08-09 | Electromagnetic wave transmission method for logging instrument information |
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| CN102777170A CN102777170A (en) | 2012-11-14 |
| CN102777170B true CN102777170B (en) | 2016-03-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104912544A (en) * | 2015-05-29 | 2015-09-16 | 中国航天科技集团公司烽火机械厂 | Downhole temperature and pressure parameter detection system and method for oil-gas well |
| CN109756248B (en) * | 2018-12-25 | 2022-01-11 | 中国石油天然气集团有限公司 | Magnetic coupling energy-carrying reverse communication method for underground measurement while drilling |
| CN112593864A (en) * | 2020-12-09 | 2021-04-02 | 电子科技大学 | Self-powered intelligent drill pipe system and underground data transmission method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6234257B1 (en) * | 1997-06-02 | 2001-05-22 | Schlumberger Technology Corporation | Deployable sensor apparatus and method |
| CN101691841A (en) * | 2009-10-16 | 2010-04-07 | 中国石油天然气集团公司 | Circuit used for petroleum underground three-dimensional acoustic wave signal receiving sensor array |
| CN101942987A (en) * | 2010-08-13 | 2011-01-12 | 中国海洋石油总公司 | Simple sonic logger detection, calibration and ruling method |
| CN102536204A (en) * | 2012-01-11 | 2012-07-04 | 中国地质大学（武汉） | Method for increasing transmitting efficiency of electromagnetic wave wireless measurement-while-drilling system by aid of multiple insulation short pieces |
-
2012
- 2012-08-09 CN CN201210283472.3A patent/CN102777170B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6234257B1 (en) * | 1997-06-02 | 2001-05-22 | Schlumberger Technology Corporation | Deployable sensor apparatus and method |
| CN101691841A (en) * | 2009-10-16 | 2010-04-07 | 中国石油天然气集团公司 | Circuit used for petroleum underground three-dimensional acoustic wave signal receiving sensor array |
| CN101942987A (en) * | 2010-08-13 | 2011-01-12 | 中国海洋石油总公司 | Simple sonic logger detection, calibration and ruling method |
| CN102536204A (en) * | 2012-01-11 | 2012-07-04 | 中国地质大学（武汉） | Method for increasing transmitting efficiency of electromagnetic wave wireless measurement-while-drilling system by aid of multiple insulation short pieces |
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Effective date of registration: 20180126 Address after: 300356 24, Tianjin Industrial Park, eight Li Town, Jinnan District, Jianshe Road Patentee after: (Tianjin) Petroleum Engineering Technology Service Co., Ltd. Address before: 100070 Beijing city Fengtai District Haiying Road No. 1 Building No. 4 Hospital East first floor Patentee before: Jiai Technology (Beijing) Co., Ltd. |
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Address after: 300356 Tianjin Jinnan District eight Li Tai town Industrial Park No. 24 Jianshe Road. Patentee after: Ji AI (Tianjin) Petroleum Engineering Co., Ltd. Address before: 300356 Tianjin Jinnan District eight Li Tai town Industrial Park No. 24 Jianshe Road. Patentee before: (Tianjin) Petroleum Engineering Technology Service Co., Ltd. |
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Address after: 300356 Tianjin Jinnan District eight Li Tai town Industrial Park No. 24 Jianshe Road. Patentee after: Jiai (Tianjin) automatic control intelligent equipment Co.,Ltd. Address before: 300356 Tianjin Jinnan District eight Li Tai town Industrial Park No. 24 Jianshe Road. Patentee before: JIAI (TIANJIN) PETROLEUM ENGINEERING Co.,Ltd. |
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Address after: 300356 Tianjin Jinnan District eight Li Tai town Industrial Park No. 24 Jianshe Road. Patentee after: Jichen Intelligent Equipment Group Co.,Ltd. Address before: 300356 Tianjin Jinnan District eight Li Tai town Industrial Park No. 24 Jianshe Road. Patentee before: Jiai (Tianjin) automatic control intelligent equipment Co.,Ltd. |
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