CN110611516A - Wireless communication device suitable for oil field downhole instrument - Google Patents
Wireless communication device suitable for oil field downhole instrument Download PDFInfo
- Publication number
- CN110611516A CN110611516A CN201911031429.6A CN201911031429A CN110611516A CN 110611516 A CN110611516 A CN 110611516A CN 201911031429 A CN201911031429 A CN 201911031429A CN 110611516 A CN110611516 A CN 110611516A
- Authority
- CN
- China
- Prior art keywords
- coil
- receiving coil
- wireless communication
- communication device
- sending
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000006854 communication Effects 0.000 title claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 230000000712 assembly Effects 0.000 abstract description 3
- 238000000429 assembly Methods 0.000 abstract description 3
- 230000007175 bidirectional communication Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
-
- H04B5/24—
Abstract
The invention discloses a wireless communication device suitable for an oil field downhole instrument. Comprises a receiving coil holder (2) and a sending coil holder (6); a receiving coil (4) is wound on the receiving coil seat (2), and a sending coil (5) is wound on the sending coil seat (6); the lead of the receiving coil (4) is connected with the host (1) and is powered by the host (1), and the host (1) is powered by a ground power supply through a cable of an underground instrument; the lead wire of the transmission coil (5) is supplied with power from a high-temperature battery (8) mounted in the slave (9). The invention realizes the wireless two-way communication function between two adjacent assemblies of the underground instrument and meets the requirement of the underground instrument on the wireless communication function in the special application occasions. The technical scheme of the invention is suitable for signal connection of the oil field underground instrument with the wireless communication function.
Description
Technical Field
The invention relates to a wireless communication device suitable for an oil field downhole instrument, and belongs to the technical field of oil field downhole instrument structures.
Background
In the oil field downhole instrument, the communication among all components of the instrument is mostly realized in a wired connection mode. However, as the functional requirements of oil field users on the downhole instruments are more and more, the environments to which the downhole instruments are applied are more and more harsh, and in order to meet the design functional requirements, the requirements cannot be met in some special design occasions by means of wired connection communication; the existing wireless communication device is generally only suitable for the environment on the oil field well and is not suitable for the use of oil field downhole instruments. Therefore, the prior art has shortcomings and needs to be further improved.
Disclosure of Invention
The invention aims to provide a wireless communication device which has simple structure and reliable working performance and is suitable for oilfield downhole instruments, so as to overcome the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a wireless communication device suitable for an oil field downhole instrument, which comprises a receiving coil holder and a sending coil holder, wherein the receiving coil holder is connected with the sending coil holder; a receiving coil is wound on the receiving coil seat, and a sending coil is wound on the sending coil seat; the lead of the receiving coil is connected with a host and powered by the host, and the host is powered by a ground power supply through a cable of the downhole instrument; the lead wire of the transmitting coil is powered by a high-temperature battery installed in the slave.
In the wireless communication device, a receiving coil protecting cover is arranged outside the receiving coil seat.
In the wireless communication device, the seal rings are arranged between the upper end and the lower end of the receiving coil protective cover and the receiving coil protective cover.
In the wireless communication device, a transmitting coil protecting cover is arranged outside the transmitting coil holder.
In the wireless communication device, the upper end and the lower end of the sending coil protecting cover and the sending coil base are provided with the sealing rings.
In the wireless communication device, the receiving coil and the transmitting coil are coaxial and are located at the same height position of the axis.
In the wireless communication device, the receiving coil holder, the receiving coil protecting cover, the transmitting coil holder and the transmitting coil protecting cover are all made of non-magnetic metal materials.
Due to the adoption of the technical scheme, compared with the prior art, the wireless bidirectional communication function between two adjacent assemblies of the underground instrument is realized, and the requirement of the underground instrument on the wireless communication function in special application occasions is met. In addition, the invention has the advantages of simple structure, reliable working performance, particular application to the use of the oil field underground instrument which needs to realize the wireless communication function, and the like.
Drawings
Fig. 1 is a schematic structural view of the present invention.
The labels in the figures are: 0-sealing ring, 1-host, 2-receiving coil holder, 3-receiving coil protective cover, 4-receiving coil, 5-sending coil, 6-sending coil holder, 7-sending coil protective cover, 8-high temperature battery, 9-slave.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The invention relates to a wireless communication device suitable for an oil field downhole instrument, which comprises a receiving coil holder 2 and a sending coil holder 6 as shown in figure 1; a receiving coil 4 is wound on the receiving coil seat 2, and a sending coil 5 is wound on the sending coil seat 6; the lead of the receiving coil 4 is connected with the host 1 and is powered by the host 1, and the host 1 is powered by a ground power supply through a cable of the downhole instrument; the lead wire of the transmission coil 5 is supplied with power from a high-temperature battery 8 mounted in a slave 9. The receiving coil holder 2 is externally provided with a receiving coil protecting cover 3. And sealing rings 0 are arranged between the upper end and the lower end of the receiving coil protective cover 3 and the receiving coil protective cover 3. A transmitting coil protecting cover 7 is arranged outside the transmitting coil holder 6. And sealing rings 0 are arranged between the upper end and the lower end of the sending coil protecting cover 7 and the sending coil base 6. The receiving coil 4 is coaxial with the transmitting coil 5 and is located at the same height position of the axis. The receiving coil base 2, the receiving coil protecting cover 3, the sending coil base 6 and the sending coil protecting cover 7 are all made of non-magnetic conductive metal materials.
The master 1 and the slave 9 may directly employ oilfield downhole tools used in the prior art.
Examples
The structure of this example is shown in fig. 1, and mainly comprises two coaxially arranged transmitting and receiving coils. The receiving coil 4 and the sending coil 5 are respectively wound on the receiving coil base 2 and the sending coil base 6, the receiving coil base 2 and the sending coil base 6 are respectively externally provided with a receiving coil protective cover 3 and a sending coil protective cover 7, and the receiving and sending coil components are respectively sealed by a sealing ring 0 to isolate external high-pressure liquid or gas. The lead of the receiving coil 4 is soldered to the main body 1 and is supplied with power from the main body 1. The mainframe 1 is powered by a surface power supply via the wireline of the downhole tool. The lead wire of the transmission coil 5 is soldered to the slave 9 and is supplied with power from a high-temperature battery 8 mounted in the slave 9. The basic principle of the wireless communication is Faraday's law of electromagnetic induction, and the wireless two-way transmission of data is realized by the coupling of quasi-static magnetic fields between the sending coil 5 and the receiving coil 4. In order to enhance the coupling coefficient of the magnetic field, the transceiver coils are positioned concentrically and as close as possible to each other, and the associated transceiver coil protective covers and the mounting base are made of non-magnetic conductive metal materials.
By adopting the technical scheme, the wireless bidirectional communication function between two adjacent assemblies of the underground instrument is realized, and the requirement of the underground instrument on the wireless communication function in special application occasions is met. The technical scheme of the invention is suitable for signal connection of the oil field underground instrument with the wireless communication function.
Claims (7)
1. A wireless communication device suitable for an oil field downhole instrument comprises a receiving coil holder (2) and a sending coil holder (6); the method is characterized in that: a receiving coil (4) is wound on the receiving coil seat (2), and a sending coil (5) is wound on the sending coil seat (6); the lead of the receiving coil (4) is connected with the host (1) and is powered by the host (1), and the host (1) is powered by a ground power supply through a cable of an underground instrument; the lead wire of the transmission coil (5) is supplied with power from a high-temperature battery (8) mounted in the slave (9).
2. The wireless communication device for downhole tools in oil fields according to claim 1, wherein: and a receiving coil protective cover (3) is arranged outside the receiving coil seat (2).
3. The wireless communication device of claim 2, wherein: and a sealing ring (0) is arranged between the upper end and the lower end of the receiving coil protective cover (3) and the receiving coil protective cover (3).
4. The wireless communication device of claim 2, wherein: and a transmitting coil protective cover (7) is arranged outside the transmitting coil seat (6).
5. The wireless communication device for downhole tools in oil fields according to claim 4, wherein: and a sealing ring (0) is arranged between the upper end and the lower end of the sending coil protective cover (7) and the sending coil base (6).
6. The wireless communication device for downhole tools in oil fields according to claim 1, wherein: the receiving coil (4) and the sending coil (5) are coaxial and are positioned at the same height position of the axis.
7. The wireless communication device for downhole tools in oil fields according to claim 4, wherein: the receiving coil seat (2), the receiving coil protective cover (3), the sending coil seat (6) and the sending coil protective cover (7) are all made of non-magnetic metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031429.6A CN110611516A (en) | 2019-10-28 | 2019-10-28 | Wireless communication device suitable for oil field downhole instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031429.6A CN110611516A (en) | 2019-10-28 | 2019-10-28 | Wireless communication device suitable for oil field downhole instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110611516A true CN110611516A (en) | 2019-12-24 |
Family
ID=68895296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911031429.6A Pending CN110611516A (en) | 2019-10-28 | 2019-10-28 | Wireless communication device suitable for oil field downhole instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110611516A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1264832A (en) * | 2000-01-25 | 2000-08-30 | 清华大学 | Underground communication device with coil coupling withotu iron core |
| CN101787883A (en) * | 2010-03-01 | 2010-07-28 | 北京六合伟业科技有限公司 | Underground instrument for magnetic coupling communication |
| US20110163890A1 (en) * | 2007-09-28 | 2011-07-07 | Qinetiq Limited | Down-hole wireless communication system |
| WO2014132078A2 (en) * | 2013-02-28 | 2014-09-04 | Petrowell Limited | Downhole communication |
| CN109083638A (en) * | 2018-10-15 | 2018-12-25 | 天津合众达油气测试有限公司 | A kind of teledata double-direction radio well testing system |
| CN109756248A (en) * | 2018-12-25 | 2019-05-14 | 中国石油集团长城钻探工程有限公司 | Magnetic coupling for downhole drilling is taken can reverse link communication method |
| CN110306973A (en) * | 2019-06-13 | 2019-10-08 | 西安思坦仪器股份有限公司 | It is a kind of to cross drill bit logging instrument end radio transmitting device and method |
| CN210274052U (en) * | 2019-10-28 | 2020-04-07 | 贵州航天凯山石油仪器有限公司 | Wireless communication device suitable for oil field downhole instrument |
-
2019
- 2019-10-28 CN CN201911031429.6A patent/CN110611516A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1264832A (en) * | 2000-01-25 | 2000-08-30 | 清华大学 | Underground communication device with coil coupling withotu iron core |
| US20110163890A1 (en) * | 2007-09-28 | 2011-07-07 | Qinetiq Limited | Down-hole wireless communication system |
| CN101787883A (en) * | 2010-03-01 | 2010-07-28 | 北京六合伟业科技有限公司 | Underground instrument for magnetic coupling communication |
| WO2014132078A2 (en) * | 2013-02-28 | 2014-09-04 | Petrowell Limited | Downhole communication |
| CN109083638A (en) * | 2018-10-15 | 2018-12-25 | 天津合众达油气测试有限公司 | A kind of teledata double-direction radio well testing system |
| CN109756248A (en) * | 2018-12-25 | 2019-05-14 | 中国石油集团长城钻探工程有限公司 | Magnetic coupling for downhole drilling is taken can reverse link communication method |
| CN110306973A (en) * | 2019-06-13 | 2019-10-08 | 西安思坦仪器股份有限公司 | It is a kind of to cross drill bit logging instrument end radio transmitting device and method |
| CN210274052U (en) * | 2019-10-28 | 2020-04-07 | 贵州航天凯山石油仪器有限公司 | Wireless communication device suitable for oil field downhole instrument |
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