CN203716953U - Adjustable coil system used for induction log tool - Google Patents
Adjustable coil system used for induction log tool Download PDFInfo
- Publication number
- CN203716953U CN203716953U CN201320889631.4U CN201320889631U CN203716953U CN 203716953 U CN203716953 U CN 203716953U CN 201320889631 U CN201320889631 U CN 201320889631U CN 203716953 U CN203716953 U CN 203716953U
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- coil
- mandrel
- debugging
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- induction
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- 230000006698 induction Effects 0.000 title claims abstract description 20
- 230000001939 inductive effect Effects 0.000 claims description 17
- 239000011152 fibreglass Substances 0.000 claims description 5
- 210000002445 nipple Anatomy 0.000 claims description 5
- 238000012360 testing method Methods 0.000 abstract description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 abstract 1
- 238000004026 adhesive bonding Methods 0.000 abstract 1
- 239000011151 fibre-reinforced plastic Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 241001527902 Aratus Species 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000004020 conductor Substances 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
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- General Induction Heating (AREA)
Abstract
The utility model relates to the technical field of logging instruments, and discloses an adjustable coil system used for an induction log tool. The adjustable coil system used for the induction log tool comprises a double-induction coil system, an integrated mandrel is adopted in the double-induction coil system to form the integrated coil system, a coil is arranged on the double-induction coil system, an adjusting and testing compensation coil with the longitudinal position adjustable is arranged at the bottommost end of the double-induction coil system, the integrated mandrel is a fiber reinforced plastic mandrel and comprises a coil groove, a cable groove and a straightening groove, the coil is coiled in the coil groove in the maximum radius position of the mandrel, an adjusting and testing compensation coil framework is further connected to the integrated mandrel and provided with an adjusting and testing compensation coil groove, the adjusting and testing compensation coil framework is fixed to the integrated mandrel through a positioning connector and a gluing layer, and the adjusting and testing compensation coil is coiled in the adjusting and testing compensation coil groove. The double-induction coil system is the integrated coil system, displacement and drifting caused by mechanical and heating movement are reduced, the adjusting and testing compensation coil is arranged at the bottommost end of the double-induction coil system, and therefore the coil system can be stable.
Description
Technical field
The utility model relates to logger technical field, relates in particular to a kind of adjustable coil for induction log tool to be.
Background technology
At the popular a word of logging community " induction is afraid of to float; sound wave is afraid of to jump ", the signal that refers to two induction instrument aratuses is due in a transmitting elect magnetic field for large space very, the impact in electricity, magnetic goods and materials and electromagnetic vector loop that is subject to transmitting coil system and receiving coil and is space, place is very large, be that self structure and environmental influence are large, easily with environment as temperature, pressure and oneself state etc. impact, produce large drift, be difficult to instrument to do stable, intrinsic " induction is afraid of to float " said.
Because induction instrument aratus difficulty is large, to the people of research often without achievement, abandoner is many for many years, really can further investigate and one-tenth person is very few to some extent.The influence factor of inductive coil series is a lot, when relating to a problem and having new thinking, often again without enough condition Verifications.Therefore this is a problem that systematicness is extremely strong, needs various aspects to consider to solve simultaneously simultaneously, effectively checking.
By long-term research and conclusion, the core technology that we have proposed two induction instrument aratuses is exactly the designing technique of coil array.Induction is afraid of that the drift of floating is mainly to disturb different causing by the temperature drift of coil array with loop under varying environment, therefore solves the stability problem of coil array and overcomes the most crucial technical problem that loop interference problem is two induction instrument aratuses.
For inductive coil series, because coil array inside exists the contour conductive magneto-conductive material of metal joint, transmission cable and coil array itself, receiving coil has been contributed to a signal, and this signal is along with environment changes, and is a unsettled interfering signal.Therefore first the object that designs coil array will reduce the signal magnitude of coil array self contribution, and its less important signal stabilization of self contributing that allows, does not change along with environmental change.
Domestic research on this essential problem does not almost have, and the circle of foreign technology all can not escaped in designing technique by general company.For from dealing with problems in essence, through concentrating on studies and testing for many years, the utility model has adopted the method for designing of distinct coil array, overcomes coil array mechanical deformation and electric property and changes the unstability causing, thereby reach the object that improves stability.These designs comprise a series of method and technology, international and domestic, all never have, and invention and practical application by these aspects, obtained good effect.
Summary of the invention
The utility model is for shortcoming in prior art, designed a kind of adjustable coil for induction log tool system.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
A kind of adjustable coil for induction log tool is, comprise two inductive coil series, two inductive coil series inside adopts integrated mandrel, forms integrated coil and is, two induction coils are fastened and are provided with coil, and two inductive coil series lowermost ends are provided with the adjustable debugging bucking coil of lengthwise position.Two inductive coil series inside adopts integrated mandrel, forms integrated coil to be, and machinery be can reduce and kinetic displacement and drift heated, thereby reach in different state lower coil, be the stable object of machine performance.In addition in the design and debugging of coil array, self direct-coupled signal is often very large, this signal is our unwanted signal, it is but mixed in the middle of the signal that we need to detect, need in debugging, it be transferred to very little, in coil array, the minor variations of a certain turn coil position all has considerable influence to directly coupling signal, in processing, little deviation also can be brought the variation of this signal, for signal stabilization, we are provided with the adjustable debugging bucking coil of lengthwise position at two inductive coil series lowermost ends, very easily by the directly coupling signal set to zero of debugging coil array, interfering with each other between coil self is reduced to minimum most zero, thereby reach the object that coil array is stable.
As preferably, integrated mandrel is glass fiber reinforced plastic mandrel, and integrated mandrel comprises coil groove, cable channel, righting trough and mandrel maximum radius place, and coil winding is in coil groove.The glass fiber reinforced plastic mandrel that integrated mandrel adopts special technique to make, the feature of this glass fiber reinforced plastic is that longitudinal temperature line expansion factor is little, thereby makes the temperature drift of designed coil array little.In addition the conductive magneto-conductive compensative material of all coils groove, cable channel and installation etc. all on same core branch shaft material processing scribe and form, guarantee that each coil is all designed to be arranged in fixing coil groove, guarantee under action of environmental stresses, can not produce relative motion between coil and coil groove, so also guaranteed that effect of stress lower coil is that parameter is still stable outside.
As preferably, on integrated mandrel, be also connected with debugging bucking coil skeleton, debugging bucking coil skeleton is provided with debugging compensating line ring recess, and debugging bucking coil skeleton is fixed on integrated mandrel by landing nipple and bonding layer, and debugging bucking coil is wound in debugging compensating line ring recess.Debugging bucking coil is wound in debugging compensating line ring recess, debugging compensating line ring recess is located on the debugging bucking coil skeleton that can vertically move, the garbage signal that the upper-lower position of debugging bucking coil skeleton by adjustment differs instrument internal angle from 90 degree adjusts to zero, need to, outside coil, the conductive magneto-conductive material that is specifically designed to compensation being set again, not adjust rear landing nipple debugging bucking coil skeleton is fixed on integrated mandrel by bonding layer like this.
The utility model, owing to having adopted above technical scheme, has significant technique effect:
The integrated mandrel of the inner employing of two inductive coil series of the utility model dual induction lateolog-8 logging instrument, forming integrated coil is, reduce machinery and the kinetic displacement of heating and drift, two inductive coil series lowermost ends are provided with the adjustable debugging bucking coil of lengthwise position, the straight coupled signal of adjustable coil array is zero, reduces the mutual inductance between coil, has reached the stable object of coil array, overcome prior art coil array unstable, loop such as is easily disturbed at the shortcoming.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
The integrated core shaft structure schematic diagram of Fig. 2.
Fig. 3 is debugging bucking coil structural representation.
The toponym that in accompanying drawing, each number designation refers to is as follows: 1-bis-inductive coil series, 2-integrated mandrel, 3-coil, 4-debugging bucking coil, 5-coil groove, 6-cable channel, 7-righting trough, 8-mandrel maximum radius place, 9-debugging bucking coil skeleton, 10-debugging compensating line ring recess, 11-landing nipple, 12-bonding layer.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the utility model is described in further detail:
Embodiment 1
A kind of adjustable coil for induction log tool is, as shown in Figure 1, comprise two inductive coil series 1, the integrated mandrel 2 of two inductive coil series 1 inner employing, forming integrated coil is, two inductive coil series 1 are provided with coil 3, and two inductive coil series 1 lowermost ends are provided with the adjustable debugging bucking coil 4 of lengthwise position.Integrated mandrel 2 is glass fiber reinforced plastic mandrel, and as shown in Figure 2, integrated mandrel 2 comprises coil groove 5, cable channel 6, righting trough 7 and mandrel maximum radius place 8, and coil 3 is wound in coil groove 5.On integrated mandrel 2, be also connected with debugging bucking coil skeleton 9, as shown in Figure 3, debugging bucking coil skeleton 9 is provided with debugging compensating line ring recess 10, debugging bucking coil skeleton 9 is fixed on integrated mandrel 2 by landing nipple 11 and bonding layer 12, and debugging bucking coil 4 is wound in debugging compensating line ring recess 10.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (3)
1. the adjustable coil for induction log tool is, comprise two inductive coil series (1), it is characterized in that: the inner integrated mandrel (2) that adopts of two inductive coil series (1), forming integrated coil is, two inductive coil series (1) are provided with coil (3), and two inductive coil series (1) lowermost end is provided with the adjustable debugging bucking coil (4) of lengthwise position.
2. a kind of adjustable coil for induction log tool according to claim 1 is, it is characterized in that: integrated mandrel (2) is glass fiber reinforced plastic mandrel, integrated mandrel (2) comprises coil groove (5), cable channel (6), righting trough (7) and mandrel maximum radius place (8), and coil (3) is wound in coil groove (5).
3. a kind of adjustable coil for induction log tool according to claim 2 is, it is characterized in that: on integrated mandrel (2), be also connected with debugging bucking coil skeleton (9), debugging bucking coil skeleton (9) is provided with debugging compensating line ring recess (10), it is upper that debugging bucking coil skeleton (9) is fixed on integrated mandrel (2) by landing nipple (11) and bonding layer (12), and debugging bucking coil (4) is wound in debugging compensating line ring recess (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320889631.4U CN203716953U (en) | 2013-12-30 | 2013-12-30 | Adjustable coil system used for induction log tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320889631.4U CN203716953U (en) | 2013-12-30 | 2013-12-30 | Adjustable coil system used for induction log tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203716953U true CN203716953U (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320889631.4U Expired - Lifetime CN203716953U (en) | 2013-12-30 | 2013-12-30 | Adjustable coil system used for induction log tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203716953U (en) |
-
2013
- 2013-12-30 CN CN201320889631.4U patent/CN203716953U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
|
| CX01 | Expiry of patent term |