CN103726828B - A kind of shield assembly for logging instrument plinth - Google Patents
A kind of shield assembly for logging instrument plinth Download PDFInfo
- Publication number
- CN103726828B CN103726828B CN201210381097.6A CN201210381097A CN103726828B CN 103726828 B CN103726828 B CN 103726828B CN 201210381097 A CN201210381097 A CN 201210381097A CN 103726828 B CN103726828 B CN 103726828B
- Authority
- CN
- China
- Prior art keywords
- cushion block
- plinth
- shield assembly
- screening cover
- deep gouge
- 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.)
- Expired - Fee Related
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Abstract
The invention discloses a kind of shield assemblies for logging instrument plinth.The shield assembly includes plinth (11), cushion block (12), screening cover (14), and cushion block (12) is located in plinth (11), and cushion block (12) has deep gouge, and screening cover (14) matches with cushion block (12) and is closed deep gouge.
Description
Technical field
The present invention relates to well logging fields, more particularly, to a kind of shield assembly for logging instrument plinth.
Background technique
In well logging field, the electronic circuitry part of logger is commonly using high pressures components such as high-voltage power modules.Root
According to the Theory of Electromagnetic Field of Maxwell, the charge of movement generates magnetic field in space, and by the law of electromagnetic induction it is found that periphery magnetic field
Potential change can be generated in closed circuit by changing, to form induced current.It follows that high pressure component generated
High-intensity magnetic field can generate large effect to other circuits around, to have larger impact to test result.
Magnetic screen is made into shielding case using the ferromagnetic material of high magnetic permeability with armoured magnetic field.The principle of magnetic screen can use magnetic
The concept on road illustrates.Ferromagnetic material is such as made into the circuit of section connection, then in the magnetic field of formation, most magnetic field collection
In in ferromagnetic circuit.Ferromagnetic material can be analyzed with the air in cavity as parallel circuits.Because ferromagnetic material
Magnetic conductivity is more several thousand times larger than the magnetic conductivity of air, so the magnetic resistance of the magneto resistive ratio ferromagnetic material of cavity is much bigger, the line of magnetic induction
The overwhelming majority will pass through in ferromagnetic material wall, and pass through cavity magnetic flux it is few.In this way, shielded by ferromagnetic material
It just there is no that magnetic field issues outside cavity, to achieve the purpose that magnetic shielding.The magnetic conductivity of material is higher, and barrel is thicker,
Shield effectiveness is just more significant.Shielded layer is done because commonly using magnetic conductivity high ferromagnetic material such as soft iron, silicon steel, permalloy, thus it is magnetostatic
Shielding is called ferro-magnetic shield.
Plinth is the connector applied between logger and multi-pin connector, is thin footpath hollow structure, according to instrument
The difference of type and demand has the line that runs through in varying numbers to pass through here.In general logger, if not special
Matching requirements, in addition to crossing line function, most of space is in idle state in plinth, is not fully used.
Accordingly, it is desirable to devise a kind of shield assembly for logging instrument plinth, the device for generating interference is independently placed
In the plinth of distal end, the electric wire section far from instrument, and be packaged using bonding structure, reduce its generation
Interference reduces the quantity of electric wire section component, is conducive to electricity meanwhile, it is capable to make full use of the remaining space in plinth
Device arrangement in sub-line road.
Summary of the invention
According to an aspect of the present invention, a kind of shield assembly for logging instrument plinth is provided comprising plinth,
Cushion block, screening cover, the cushion block are located in the plinth, which is characterized in that the cushion block have deep gouge, the screening cover with
The cushion block matches and is closed the deep gouge.
Preferably, the shield assembly further includes high-pressure modular, and the high-pressure modular is placed in the deep gouge of the cushion block.
Preferably, the cross-sectional shape of the cushion block is T shape, and the two sides of the T shape have cabling channel, thus in the cushion block
Perforation cabling channel is formed between the inner wall of the plinth.
Preferably, the cushion block connect to form ground connection with the plinth.
Preferably, the side of the cushion block is provided with line outlet groove.
Preferably, at least one of the cushion block and the screening cover are made of high-permeability material.
Preferably, the cushion block is linked together with the screening cover using screw and screw hole.
Preferably, the cushion block is linked together with the plinth using screw and screw hole.
Preferably, the cushion block is linked together with the high-pressure modular using screw and screw hole.
Preferably, electric wire section of the shield assembly far from logger.
In accordance with the invention it is possible to realize the magnetic screen to the high pressure component of the circuit part of logger, reduce to electricity
The interference of road part other devices, while decreasing the influence to measurement result.In addition, according to the present invention, taking full advantage of
Remaining space in plinth makes high pressure component far from circuit part, is conducive to optimize each component in electronic circuit
Tool length is shortened in arrangement, and docks in headstock and carried out operative constraint through line.
Detailed description of the invention
In the detailed description of the embodiment only provided referring to the drawings by example, it will be clear that other feature, advantage
And details.
Fig. 1 is the perspective view of an exemplary embodiment of the shield assembly for logging instrument plinth.
Fig. 2 is the detailed view of the cushion block in the embodiment of Fig. 1.
Specific embodiment
Following description is only exemplary in itself, and be not meant to limit the present invention, its application or use
On the way.
It is the perspective view of an exemplary embodiment of the shield assembly for logging instrument plinth with reference to Fig. 1, Fig. 1.?
In the embodiment, shield assembly may include plinth 11, cushion block 12, screening cover 14.Preferably, cushion block 12 and screening cover 14 can
To be made of high-permeability material, such as the stainless steel of high magnetic permeability, be conducive to preferably be electromagnetically shielded.In addition, shielding group
Part can also include high-pressure modular 13, M3 screw 15, M2.5 screw 16, M4 screw 17.High-pressure modular 13 can pass through M2.5 spiral shell
Nail 16 is fixed in cushion block 12, and screening cover 14 can be mounted on the upper surface of cushion block 12 by M3 screw 15, and cushion block 12 can lead to
M4 screw 17 is crossed to be installed in plinth 11.Cushion block 12 and screening cover 14 form closure cavity.Cushion block 12 can be with plinth 11
Connection forms ground connection.
It is the detailed view of the cushion block in the embodiment of Fig. 1 with reference to Fig. 2, Fig. 2.In the figure, the cross section of cushion block is T
Shape, there are cabling channels 21 for two sides, to be capable of forming perforation cabling channel between cushion block 12 and the inner wall of plinth 11, are used for instrument
Device is passed through through line.There is deep gouge 24 in cushion block, can be used for placing high-pressure modular 13, four angles of deep gouge 24 are provided with high pressure
Module installation screw hole 25.In addition, can also have in deep gouge 24 through stepped hole 26, for connecting cushion block 12 and plinth
11.The upper surface of cushion block is provided with one group of screening cover installation threaded hole 23.Preferably, it is provided with line outlet groove 22 in the side of cushion block,
Cabling for high-pressure modular 13 etc..
Although with reference to exemplary embodiments describe the present invention, it is understood to one skilled in the art that
Without departing from the scope of the invention, various changes can also be made and by each element equivalent in above-described embodiment
It is replaced.Therefore, the present invention is not only restricted to disclosed specific embodiment, but the present invention will include dropping into the application model
Enclose interior all embodiments.
Claims (8)
1. a kind of shield assembly for logging instrument plinth, including plinth (11), cushion block (12), screening cover (14), described
Cushion block (12) is located in the plinth (11), and the plinth (11) is the company applied between logger and multi-pin connector
Fitting, which is characterized in that the cushion block (12) have deep gouge (24), the screening cover (14) matched with the cushion block (12) and
It is closed the deep gouge (24), the side of the cushion block (12) is provided with line outlet groove (22), the cushion block (12) and the connector
Seat (11) connection forms ground connection.
2. shield assembly as described in claim 1, which is characterized in that the shield assembly further includes high-pressure modular (13), institute
High-pressure modular (13) is stated to be placed in the deep gouge (24) of the cushion block (12).
3. shield assembly as described in claim 1, which is characterized in that the cross-sectional shape of the cushion block (12) is T shape, the T
The two sides of shape have cabling channel (21), walk to form perforation between the cushion block (12) and the inner wall of the plinth (11)
Wire casing.
4. shield assembly as described in claim 1, which is characterized in that the cushion block (12) and/or the screening cover (14) by
High-permeability material is made.
5. shield assembly as described in claim 1, which is characterized in that the cushion block (12) and the screening cover (14) utilize spiral shell
Nail and screw hole and link together.
6. shield assembly as described in claim 1, which is characterized in that the cushion block (12) and the plinth (11) utilize spiral shell
Nail and screw hole and link together.
7. shield assembly as claimed in claim 2, which is characterized in that the cushion block (12) and the high-pressure modular (13) utilize
Screw and screw hole and link together.
8. shield assembly according to any one of the preceding claims, which is characterized in that the shield assembly is far from logging instrument
The electric wire section of device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210381097.6A CN103726828B (en) | 2012-10-10 | 2012-10-10 | A kind of shield assembly for logging instrument plinth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210381097.6A CN103726828B (en) | 2012-10-10 | 2012-10-10 | A kind of shield assembly for logging instrument plinth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103726828A CN103726828A (en) | 2014-04-16 |
| CN103726828B true CN103726828B (en) | 2019-02-19 |
Family
ID=50451095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210381097.6A Expired - Fee Related CN103726828B (en) | 2012-10-10 | 2012-10-10 | A kind of shield assembly for logging instrument plinth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103726828B (en) |
Citations (7)
| 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 |
| US6131659A (en) * | 1998-07-15 | 2000-10-17 | Saudi Arabian Oil Company | Downhole well corrosion monitoring apparatus and method |
| CN1888387A (en) * | 2006-07-17 | 2007-01-03 | 北京航空航天大学 | Down-well pipe finder machinery frame |
| CN101106261A (en) * | 2007-06-13 | 2008-01-16 | 武汉海阔科技有限公司 | A high temperature resisting and high voltage cable converter plug with rotary transfer function |
| CN202042660U (en) * | 2011-02-21 | 2011-11-16 | 中国海洋石油总公司 | High-voltage-resistant electromagnetic shielding female plug |
| CN202064932U (en) * | 2011-05-25 | 2011-12-07 | 中国海洋石油总公司 | Lower connector for acoustic wave variable density logging instrument |
| CN202926312U (en) * | 2012-10-10 | 2013-05-08 | 中国石油集团长城钻探工程有限公司 | Shield assembly used for logging device connector base |
-
2012
- 2012-10-10 CN CN201210381097.6A patent/CN103726828B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6131659A (en) * | 1998-07-15 | 2000-10-17 | Saudi Arabian Oil Company | Downhole well corrosion monitoring apparatus and method |
| CN1264832A (en) * | 2000-01-25 | 2000-08-30 | 清华大学 | Underground communication device with coil coupling withotu iron core |
| CN1888387A (en) * | 2006-07-17 | 2007-01-03 | 北京航空航天大学 | Down-well pipe finder machinery frame |
| CN101106261A (en) * | 2007-06-13 | 2008-01-16 | 武汉海阔科技有限公司 | A high temperature resisting and high voltage cable converter plug with rotary transfer function |
| CN202042660U (en) * | 2011-02-21 | 2011-11-16 | 中国海洋石油总公司 | High-voltage-resistant electromagnetic shielding female plug |
| CN202064932U (en) * | 2011-05-25 | 2011-12-07 | 中国海洋石油总公司 | Lower connector for acoustic wave variable density logging instrument |
| CN202926312U (en) * | 2012-10-10 | 2013-05-08 | 中国石油集团长城钻探工程有限公司 | Shield assembly used for logging device connector base |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103726828A (en) | 2014-04-16 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190219 Termination date: 20201010 |
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| CF01 | Termination of patent right due to non-payment of annual fee |