CN107730871A - A kind of downhole data communication system of well logging apparatus - Google Patents
A kind of downhole data communication system of well logging apparatus Download PDFInfo
- Publication number
- CN107730871A CN107730871A CN201710991282.XA CN201710991282A CN107730871A CN 107730871 A CN107730871 A CN 107730871A CN 201710991282 A CN201710991282 A CN 201710991282A CN 107730871 A CN107730871 A CN 107730871A
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- well
- control unit
- optic cables
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- 238000004891 communication Methods 0.000 title claims abstract description 74
- 230000006854 communication Effects 0.000 title claims abstract description 74
- 239000000835 fiber Substances 0.000 claims abstract description 24
- 239000013307 optical fiber Substances 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 238000005070 sampling Methods 0.000 claims abstract description 10
- 238000005553 drilling Methods 0.000 claims abstract description 9
- 239000002131 composite material Substances 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 13
- 238000012546 transfer Methods 0.000 abstract description 5
- 230000003993 interaction Effects 0.000 abstract description 3
- 230000005693 optoelectronics Effects 0.000 abstract description 3
- 230000000153 supplemental effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/06—Non-electrical signal transmission systems, e.g. optical systems through light guides, e.g. optical fibres
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Signal Processing (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Remote Sensing (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geophysics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Communication unit on fiber optic cables, optical fiber connection-peg, main control unit, well in a kind of downhole data communication system of well logging apparatus of the present invention, including accommodating drilling rod, underground communica tion unit, the data sampling sensor for being contained in top ends in drilling rod；Underground communica tion unit is connected to the both ends of fiber optic cables with communication unit on well by optical fiber connection-peg signal, and communication unit signal is connected to main control unit on well, and data sampling sensor signal is connected to underground communica tion unit；System by forming full communication link from bottom to top；Improve logging data transmission system pattern, opto-electronic conversion based on wire link and fiber optic cables, complete the Large Copacity high-accuracy transmission of data, ensure that the real-time accurate feedback of supplemental characteristic of each sensor in underground is gone to main control unit on well, message transmission rate is high, and stability is strong, the high-speed transfer of the big data quantity of expansible multiple sensors, full-duplex communication link is realized, data interaction controlling significantly improves, and practicality is stronger.
Description
Technical field
The present invention relates to oil well logging instrument equipment and the communication technology association area of system, in particular, the present invention
It is related to a kind of downhole data communication system of well logging apparatus.
Background technology
At present, in the exploration engineering such as oil, geology field, with the development of logging technique, the means of down-hole information are obtained
More and more, the parameter of test is also more and more.Existing well logging means, which are substantially, transfers instrument and equipment to downhole testing
Section, ground is transferred data to after test by special cable, to reach under real-time monitoring well or the technology mesh of shaft bottom situation
's.
But cable communication transmission mode commonly used in the prior art is still earthward to send data using downhole instrument
Simplex pattern：I.e. terrestrial communication device can only passively receive sends the measurement data come up by downhole instrument equipment,
Actively required measurement data can not be selected, or entered as needed between multiple different downhole instrument equipment
The switching of row data acquisition.When needing to monitor multiple parameters and test multiple oil wells, big amount measurement data gushes
Enter to easily reach the rate-limit of data transmission cable, cause the great time delay of generation of the ground installation to data processing, shadow
Operating efficiency is rung, What is more ageing mistake occurs.
It is contemplated that a kind of downhole data communication system dedicated for well logging of research and design, to ensure that data transfer is accurate
True property and efficiency, take optical fiber cable to carry out full-duplex data transmission mode communication, significantly improve downhole data communication efficiency, together
When strong antijamming capability, long transmission distance.
The content of the invention
Based on the technical goal of background technology content part, the technical solution used in the present invention is a kind of well logging dress of design
The downhole data communication system put, includes：Be contained in the fiber optic cables in drilling rod, optical fiber connection-peg, main control unit, on well
Communication unit, at least the underground communica tion unit for being contained in top ends in drilling rod, a data sampling sensor；It is characterized in that：Institute
The both ends that underground communica tion unit is connected to the fiber optic cables with communication unit on well by the optical fiber connection-peg signal are stated,
Communication unit signal is connected to the main control unit on the well, and the data sampling sensor signal is connected to the underground
Communication unit；The system by data sampling sensor from bottom to top, underground communica tion unit, optical fiber connection-peg, fiber optic cables,
Communication unit, main control unit form complete communication link on optical fiber connection-peg, well.
Further, photoelectric conversion module is additionally provided with the optical fiber connection-peg, is led on the underground communica tion unit and well
Letter unit is completed to be connected with the electrical signals of the optical fiber connection-peg by the photoelectric conversion module.
Further, the underground communica tion unit, be equipped with internal control circuit on well in communication unit, it is described internal to control
Circuit processed includes data transceiving unit, modem module and MCU control unit；
The input end signal of MCU control unit is connected to the data in the internal control circuit of the underground communica tion unit
Gather sensor, the output end signal of MCU control unit is connected to the input of modem module, modem module it is defeated
Go out the input that end signal is connected to data transceiving unit, the output end of data transceiving unit accesses institute by photoelectric conversion module
State fiber optic cables；
The input end signal of MCU control unit is connected to the modulation in the internal control circuit of communication unit on the well
The output end of demodulating unit, the input end signal of modem module are connected to the output end of data transceiving unit, data transmit-receive
The input of unit accesses the fiber optic cables also by photoelectric conversion module.
Further, the main control unit includes for passing through the optical fiber to multilink data collection sensor
Cable sends back the single-chip microcomputer analytic unit and data feedback control unit that the gathered data come analyze deciphering.
Preferably, the fiber optic cables extexine stated is coated with the composite layer of high-strength high temperature-resistant corrosion.
The present invention uses above-mentioned technical proposal and communication mode, original logging data transmission system pattern is improved, based on wired
The opto-electronic conversion of link and fiber optic cables, complete the Large Copacity high-accuracy transmission of data, it is ensured that the parameter of each sensor in underground
The real-time accurate feedback of data is gone to main control unit on well, and message transmission rate is high, and stability is strong, and scalability is big, expansible
The high-speed transfer of the big data quantity of multiple sensors, realizes complete full-duplex communication link, and data interaction controlling significantly carries
Height, practicality are stronger.
Brief description of the drawings
Fig. 1 is the structure schematic diagram of the downhole data communication system of well logging apparatus of the present invention.
Description of symbols：
1- drilling rods, 2- fiber optic cables, 3- optical fiber connection-pegs, 4- main control units, 5- data sampling sensors, lead on 6- wells
Believe unit, 7- underground communica tion units.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in figure 1, the technical solution used in the present invention is to design a kind of downhole data communication system of well logging apparatus,
Include：The fiber optic cables 2 that are contained in drilling rod 1, optical fiber connection-peg 3, main control unit 4, communication unit 6 on well, it is contained in
The underground communica tion unit 7 of top ends, at least a data sampling sensor 5 in drilling rod 1；Underground communica tion unit 7 and communication unit on well
Member 6 is connected to the both ends of fiber optic cables 2 by the signal of optical fiber connection-peg 3, and the signal of communication unit 6 is connected to main control dress on well
4 are put, the signal of data sampling sensor 5 is connected to underground communica tion unit 7；The system passes through data sampling sensor from bottom to top
5th, underground communica tion unit 7, optical fiber connection-peg 3, fiber optic cables 2, optical fiber connection-peg 3, communication unit 6, the shape of main control unit 4 on well
Into complete communication link.
Photoelectric conversion module (in figure unmarked go out) is additionally provided with optical fiber connection-peg 3, is communicated on underground communica tion unit 7 and well
Unit 6 is completed to be connected with the electrical signals of optical fiber connection-peg 3 by photoelectric conversion module.
Internal control circuit is equipped with underground communica tion unit 7, well in communication unit 6, internal control circuit includes number
According to Transmit-Receive Unit, modem module and MCU control unit；
The input end signal of MCU control unit is connected to data acquisition biography in the internal control circuit of underground communica tion unit 7
Sensor 5, the output end signal of MCU control unit are connected to the input of modem module, the output end of modem module
Signal is connected to the input of data transceiving unit, and the output end of data transceiving unit accesses the light by photoelectric conversion module
Fiber-optic cable；
The input end signal of MCU control unit is connected to modulation /demodulation list in the internal control circuit of communication unit 6 on well
The output end of member, the input end signal of modem module are connected to the output end of data transceiving unit, data transceiving unit
Input accesses the fiber optic cables also by photoelectric conversion module.
Main control unit 4 include for multilink data gather sensor 5 by fiber optic cables 2 send back come adopt
Collection data analyze the single-chip microcomputer analytic unit and data feedback control unit of deciphering.
Preferably, the extexine of fiber optic cables 2 is coated with the composite layer of high-strength high temperature-resistant corrosion.
The present invention uses above-mentioned technical proposal and communication mode, original logging data transmission system pattern is improved, based on wired
The opto-electronic conversion of link and fiber optic cables 2, complete the Large Copacity high-accuracy transmission of data, it is ensured that the parameter of each sensor in underground
The real-time accurate feedback of data is gone to main control unit on well, and message transmission rate is high, and stability is strong, and scalability is big, expansible
The high-speed transfer of the big data quantity of multiple sensors, realizes complete full-duplex communication link, and data interaction controlling significantly carries
Height, practicality are stronger.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (5)
1. a kind of downhole data communication system of well logging apparatus, includes：It is contained in fiber optic cables in drilling rod, optical fiber grafting
Head, main control unit, communication unit, the underground communica tion unit for being contained in top ends in drilling rod, an at least data acquisition pass on well
Sensor；It is characterized in that：The underground communica tion unit is connected to communication unit on well by the optical fiber connection-peg signal
The both ends of the fiber optic cables, communication unit signal is connected to the main control unit, the data acquisition sensing on the well
Device signal is connected to the underground communica tion unit；The system by data sampling sensor from bottom to top, underground communica tion unit,
Optical fiber connection-peg, fiber optic cables, optical fiber connection-peg, communication unit, main control unit form complete communication link on well.
A kind of 2. downhole data communication system of well logging apparatus as claimed in claim 1, it is characterised in that：In the optical fiber connection-peg
Be additionally provided with photoelectric conversion module, on the underground communica tion unit and well communication unit by the photoelectric conversion module complete with
The electrical signals connection of the optical fiber connection-peg.
A kind of 3. downhole data communication system of well logging apparatus as claimed in claim 2, it is characterised in that：The underground communica tion list
Internal control circuit is equipped with communication unit in member, well, the internal control circuit includes data transceiving unit, modulatedemodulate
Adjust unit and MCU control unit；
The input end signal of MCU control unit is connected to the data acquisition in the internal control circuit of the underground communica tion unit
Sensor, the output end signal of MCU control unit are connected to the input of modem module, the output end of modem module
Signal is connected to the input of data transceiving unit, and the output end of data transceiving unit accesses the light by photoelectric conversion module
Fiber-optic cable；
The input end signal of MCU control unit is connected to the modulation /demodulation in the internal control circuit of communication unit on the well
The output end of unit, the input end signal of modem module are connected to the output end of data transceiving unit, data transceiving unit
Input access the fiber optic cables also by photoelectric conversion module.
A kind of 4. downhole data communication system of well logging apparatus as claimed in claim 1, it is characterised in that：The main control unit bag
Include for multilink data gather sensor by the fiber optic cables send back come gathered data carry out analysis deciphering
Single-chip microcomputer analytic unit and data feedback control unit.
A kind of 5. downhole data communication system of well logging apparatus as claimed in claim 1, it is characterised in that：Outside described fiber optic cables
Top layer is coated with the composite layer of high-strength high temperature-resistant corrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710991282.XA CN107730871A (en) | 2017-10-23 | 2017-10-23 | A kind of downhole data communication system of well logging apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710991282.XA CN107730871A (en) | 2017-10-23 | 2017-10-23 | A kind of downhole data communication system of well logging apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107730871A true CN107730871A (en) | 2018-02-23 |
Family
ID=61212408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710991282.XA Pending CN107730871A (en) | 2017-10-23 | 2017-10-23 | A kind of downhole data communication system of well logging apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107730871A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870197A (en) * | 2019-03-29 | 2019-06-11 | 山东呈祥电气有限公司 | A kind of intelligent power cable pipeline |
| CN111882850A (en) * | 2020-06-11 | 2020-11-03 | 中国石油天然气集团有限公司 | Optical fiber logging data transmission system based on TCP/IP protocol and working method thereof |
| CN113285755A (en) * | 2021-05-24 | 2021-08-20 | 西安格威石油仪器有限公司 | Logging instrument bus system |
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| CN201196088Y (en) * | 2008-05-15 | 2009-02-18 | 中国海洋石油总公司 | High-speed data transmission apparatus used for petroleum logging |
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| CN102817607A (en) * | 2012-08-21 | 2012-12-12 | 成都宏天电传工程有限公司 | Underground communication system of continuous pipe drill |
| CN202832515U (en) * | 2012-08-21 | 2013-03-27 | 成都宏天电传工程有限公司 | High-pressure-resisting continuous pipe drilling machine under-pit communication device |
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-
2017
- 2017-10-23 CN CN201710991282.XA patent/CN107730871A/en active Pending
Patent Citations (6)
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| CN200950583Y (en) * | 2006-09-14 | 2007-09-19 | 天津市泰华科技有限公司 | High-speed digital transmission platform |
| CN201196088Y (en) * | 2008-05-15 | 2009-02-18 | 中国海洋石油总公司 | High-speed data transmission apparatus used for petroleum logging |
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| CN102817607A (en) * | 2012-08-21 | 2012-12-12 | 成都宏天电传工程有限公司 | Underground communication system of continuous pipe drill |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870197A (en) * | 2019-03-29 | 2019-06-11 | 山东呈祥电气有限公司 | A kind of intelligent power cable pipeline |
| CN111882850A (en) * | 2020-06-11 | 2020-11-03 | 中国石油天然气集团有限公司 | Optical fiber logging data transmission system based on TCP/IP protocol and working method thereof |
| CN113285755A (en) * | 2021-05-24 | 2021-08-20 | 西安格威石油仪器有限公司 | Logging instrument bus system |
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Application publication date: 20180223 |