CN205488544U - Electromagnetic emission antenna between well - Google Patents
Electromagnetic emission antenna between well Download PDFInfo
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- CN205488544U CN205488544U CN201620114239.6U CN201620114239U CN205488544U CN 205488544 U CN205488544 U CN 205488544U CN 201620114239 U CN201620114239 U CN 201620114239U CN 205488544 U CN205488544 U CN 205488544U
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Abstract
The utility model provides an electromagnetic emission antenna between well relates to mining site geophysics technical field, and the change of transmission magnetic flow is monitored to this electromagnetic emission antenna between well accessible, realizes emit antenna's the impedance and the matching of emit antenna frequency to reach the best emission efficiency. An electromagnetic emission antenna between well, includes: the relay group of compriseing a plurality of electric switchs then, the transmitting coil who comprises a plurality of transmitting coil organize, every is at least one transmitting coil of electric on -off control then, organizing with transmitting coil and connecting in parallel at same coil skeleton's monitoring coil, the monitoring coil is connected with transmission magnetic flow sampling circuit in order and is used for control electric switch open -closed state's central control module then.
Description
Technical field
This utility model relates to field geophysics technical field, particularly relates to Electromagnetic Launching antenna between a kind of well.
Background technology
In petroleum well logging technology field, for determining intra block geological condition in a big way, need well formation is scanned.Between well, magnetography logging technique is enforcement scanning measurement between Liang Koujing or between multiple wells, obtains after mass data, uses Computerized chromatographic technology to obtain between two mouthfuls of wells or the image of resistivity profile between multiple wells.But utility model people finds, between well, electric magnetic image is higher to the requirement launching antenna, concrete, and it is 200 times of minimum tranmitting frequency that this transmitting antenna needs to launch the very low frequency signal of 5Hz-1000Hz, high emission frequency.At the two ends of frequency band, antenna impedance difference is relatively big, therefore to ensure the efficiency of transmitting at whole frequency range, extremely difficult.
Utility model content
This utility model provides Electromagnetic Launching antenna between a kind of well, and between this well, Electromagnetic Launching antenna can launch the change of magnetic flux by monitoring, it is achieved to launching the impedance of antenna and mating of transmitting antenna frequencies, to reach optimal emission effciency.
For solving above-mentioned technical problem, embodiment of the present utility model adopts the following technical scheme that
Electromagnetic Launching antenna between a kind of well, including:
The relay group being made up of multiple relay switchs, the transmitting winding group being made up of multiple transmitting coils；
Each relay switch controls at least one transmitting coil；
With the monitoring coil that transmitting winding group is connected in parallel on same coil rack, monitoring coil is sequentially connected with transmitting magnetic flux sample circuit and for controlling the central control module of relay switch open and-shut mode.
More preferred, described central control module includes current monitoring circuit, pulse modulated circuit and current feedback circuit.
Preferably, described current monitoring circuit includes breaker protector, and be connected with breaker protector respectively crosses flow monitoring module, overvoltage monitoring module and under-voltage monitoring module.
Optionally, described current monitoring circuit also includes the alarm module being connected with mistake flow monitoring module, overvoltage monitoring module and under-voltage monitoring module respectively.
Further alternative, described pulse modulated circuit uses TL494X chip.
More preferred, described current feedback circuit is current parallel negative-feedback circuit.
This utility model provides Electromagnetic Launching antenna between a kind of well, and between this well, Electromagnetic Launching antenna includes relay group, transmitting winding group, monitoring coil, launches magnetic flux sample circuit and central control module.By the change of monitoring coil monitoring induced emission magnetic flux, and issue the corresponding relay switch of central control module opening and closing, thus realize the impedance launching antenna and be mutually matched with launching antenna frequencies, be finally reached optimal emission effciency.
Accompanying drawing explanation
Fig. 1 is the structural representation of Electromagnetic Launching antenna between this utility model well；
Fig. 2 is the structural representation of Electromagnetic Launching antenna central control module between this utility model well.
Detailed description of the invention
This utility model provides Electromagnetic Launching antenna between a kind of well, and between this well, Electromagnetic Launching antenna can launch the change of magnetic flux by monitoring, it is achieved to launching the impedance of antenna and mating of transmitting antenna frequencies, to reach optimal emission effciency.
Below in conjunction with following accompanying drawing, this utility model embodiment is described in detail.
This utility model provides Electromagnetic Launching antenna between a kind of well, as it is shown in figure 1, Electromagnetic Launching antenna includes relay group 1, transmitting winding group 2, monitoring coil 3, launches magnetic flux sample circuit 4 and central control module 5 between this well.Wherein, relay group 1 is by multiple relay switchs (relay switch 1_1, relay switch 1_2 ..., relay switch 1_ (2n), wherein n is natural number) composition, transmitting winding group 2 is by multiple transmitting coils (transmitting coil 2_1, transmitting coil 2_2 ..., transmitting coil 2_ (2n), wherein n is natural number) composition, each relay switch controls at least one transmitting coil；Monitoring coil 3 is connected in parallel on same coil rack with transmitting winding group 1, and monitoring coil is for monitoring the situation of change launching magnetic flux of transmitting winding group；And launch magnetic flux sample circuit 4 and central control module 5 and be sequentially connected with monitoring coil 3, wherein launch magnetic flux sample circuit 4 situation of change that monitoring coil monitoring obtains launching magnetic flux to be sampled, and pass to central control module 5, central control module 5 sends control signal according to default control software, controls the open and-shut mode of relay switch.It should be noted that, control by central control module 5, relay group 1 controls each transmitting coil in transmitting winding group 2 under set operating frequency and carries out opening/closing, thus changes transmitting coil 2 and launch impedance, is finally reached operating frequency and the effect launching matches impedances.
Concrete, as shown in Figure 2, central control module 5 includes current monitoring circuit 51, pulse modulated circuit 52 and current feedback circuit 53, current monitoring circuit 51 launches, for receiving, the sample rate current that magnetic flux sample circuit 4 sends, and current feedback circuit 53 is for issuing each relay switch by the control signal representing relay switch open and-shut mode.
And it is further; as shown in Figure 2; current monitoring circuit 51 includes breaker protector 511, crosses flow monitoring module 512, overvoltage monitoring module 513, under-voltage monitoring module 514, alarm module 515; wherein; breaker protector 511 is connected with flow monitoring module 512, overvoltage monitoring module 513 and under-voltage monitoring module 514 excessively respectively, and alarm module 515 is connected with flow monitoring module 512, overvoltage monitoring module 513 and under-voltage monitoring module 514 excessively respectively.
Wherein, as one the most preferred embodiment, pulse modulated circuit uses TL494X chip.Current feedback circuit is current parallel negative-feedback circuit.
This utility model provides Electromagnetic Launching antenna between a kind of well, and between this well, Electromagnetic Launching antenna includes relay group, transmitting winding group, monitoring coil, launches magnetic flux sample circuit and central control module.By the change of monitoring coil monitoring induced emission magnetic flux, and issue the corresponding relay switch of central control module opening and closing, thus realize the impedance launching antenna and be mutually matched with launching antenna frequencies, be finally reached optimal emission effciency.
The above; it is only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; change can be readily occurred in or replace, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with described scope of the claims.
Claims (6)
1. Electromagnetic Launching antenna between a well, it is characterised in that including:
The relay group being made up of multiple relay switchs, the transmitting winding group being made up of multiple transmitting coils；
Each relay switch controls at least one transmitting coil；
With the monitoring coil that transmitting winding group is connected in parallel on same coil rack, monitoring coil has been sequentially connected with transmitting
Magnetic flux sample circuit and for controlling the central control module of relay switch open and-shut mode.
Electromagnetic Launching antenna between a kind of well the most according to claim 1, it is characterised in that described central authorities
Control module includes current monitoring circuit, pulse modulated circuit and current feedback circuit.
Electromagnetic Launching antenna between a kind of well the most according to claim 2, it is characterised in that described electric current
Monitoring circuit includes breaker protector, and be connected with breaker protector respectively crosses flow monitoring module, overvoltage
Monitoring module and under-voltage monitoring module.
Electromagnetic Launching antenna between a kind of well the most according to claim 3, it is characterised in that described electric current
Monitoring circuit also includes respectively with cross flow monitoring module, overvoltage monitoring module and under-voltage monitoring module phase
The alarm module connected.
Electromagnetic Launching antenna between a kind of well the most according to claim 2, it is characterised in that described pulse
Modulation circuit uses TL494X chip.
Electromagnetic Launching antenna between a kind of well the most according to claim 2, it is characterised in that described electric current
Feedback circuit is current parallel negative-feedback circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620114239.6U CN205488544U (en) | 2016-02-04 | 2016-02-04 | Electromagnetic emission antenna between well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620114239.6U CN205488544U (en) | 2016-02-04 | 2016-02-04 | Electromagnetic emission antenna between well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205488544U true CN205488544U (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620114239.6U Active CN205488544U (en) | 2016-02-04 | 2016-02-04 | Electromagnetic emission antenna between well |
Country Status (1)
| Country | Link |
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| CN (1) | CN205488544U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107039765A (en) * | 2016-02-04 | 2017-08-11 | 中石化石油工程技术服务有限公司 | Electromagnetic Launching antenna between a kind of well |
| CN107209281A (en) * | 2015-01-30 | 2017-09-26 | 麦特罗特克公司 | The antenna positioned for underground line |
-
2016
- 2016-02-04 CN CN201620114239.6U patent/CN205488544U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107209281A (en) * | 2015-01-30 | 2017-09-26 | 麦特罗特克公司 | The antenna positioned for underground line |
| CN107209281B (en) * | 2015-01-30 | 2020-08-28 | 麦特罗特克公司 | Antenna for underground line positioning |
| CN107039765A (en) * | 2016-02-04 | 2017-08-11 | 中石化石油工程技术服务有限公司 | Electromagnetic Launching antenna between a kind of well |
| CN107039765B (en) * | 2016-02-04 | 2024-06-25 | 中国石油化工集团有限公司 | Interwell electromagnetic transmitting antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220223 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: SINOPEC Group Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee after: Sinopec Jingwei Co.,Ltd. Patentee after: Shengli logging company of Sinopec Jingwei Co.,Ltd. Address before: Room 703, block a, Beichen world center, No. 8, Beichen West Road, Chaoyang District, Beijing 100728 Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee before: WELL LOGGING COMPANY, SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. |
|
| TR01 | Transfer of patent right |