CN104733863B - Electromagnetic tool transmitter and its transmitting antenna between a kind of well - Google Patents
Electromagnetic tool transmitter and its transmitting antenna between a kind of well Download PDFInfo
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- CN104733863B CN104733863B CN201510069239.9A CN201510069239A CN104733863B CN 104733863 B CN104733863 B CN 104733863B CN 201510069239 A CN201510069239 A CN 201510069239A CN 104733863 B CN104733863 B CN 104733863B
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Abstract
A kind of stability of present invention offer is strong, and emission efficiency is high, and the transmitter and its transmitting antenna of electromagnetic tool transmitter between the strong well of transmitting antenna quality factor, the transmitting antenna include the antenna module being arranged in transmitter glass fibre reinforced plastics casing；Antenna module includes magnetic core, and through the mandrel being arranged on inside magnetic core, cladding is arranged on the antenna frame outside magnetic core, and transmitting coil and correcting coil on antenna frame are wound in segmented；Magnetic core is locked in antenna frame by fixed cover under fixed cover on the magnetic core of both ends setting and magnetic core respectively；Transmitting coil and correcting coil are symmetrically wound on antenna frame by the silver-plated enamel-covered wire individual layer of multiply.The transmitter, including glass fibre reinforced plastics casing, the transmitting antenna as described in any of the above scheme inside glass fibre reinforced plastics casing is arranged on, and is arranged on the upper seal and lower seal at glass fibre reinforced plastics casing both ends；Pre-tightening apparatus is provided between lower seal and transmitting antenna, the free end of lower seal sets balance system.
Description
Technical field
The present invention relates to oil-gas exploration technology, electromagnetic tool transmitter and its transmitting antenna between specially a kind of well.
Background technology
With the development of exploration engineering, determine stratum sand body is connective, find omit oil reservoir, the macroscopical Flooding Efficiency of monitoring,
Design Encryption Well, the major tasks that reservoir modeling precision has become mid-late oilfield development are improved, but due to existing well logging side
Electromagnetic logging instrument poor reliability between the well used in method, antenna power loss is big, and radial direction investigative range is small, and work progress is numerous
Use demand that is miscellaneous, not being well positioned to meet in above-mentioned application.
Electromagnetic logging is that the resistivity distribution between pit shaft is measured between well, is contemporary geophysics application technology hair
The important front edge of exhibition.As shown in figure 1, electromagnetic tool underground part is mainly made up of transmitter and receiver two parts between well,
During measurement, low frequency transmitter is placed in silo, in the neighbouring vertical and water for receiving borehole measurement magnetic field of a bite or more mouthfuls
The amount of dividing equally, with higher precision and the electrology characteristic of resolution ratio direct measurement well formation.Compared with traditional electrical log, well
Between magnetography there is deeper and bigger investigative range；Compared with mt and well-ground electromagnetic method, it has higher essence
Degree and deeper investigative range.As shown in Fig. 2 electromagnetic tool transmitter is by upper seal 1, transmitting antenna 2, glass between well
Outer steel shell 3, pre-tightening apparatus 4, lower seal 5 and balance system 6 are in groups into and transmitting antenna 2 is the crucial institute of transmitter
.
The content of the invention
For problems of the prior art, a kind of stability of present invention offer is strong, and emission efficiency is high, transmitting antenna product
Electromagnetic tool transmitter and its transmitting antenna between the strong well of prime factor.
The present invention is to be achieved through the following technical solutions：
The transmitting antenna of electromagnetic tool transmitter between a kind of well of the present invention, including be arranged in transmitter glass fibre reinforced plastics casing
Antenna module；Described antenna module includes magnetic core, and through the mandrel being arranged on inside magnetic core, cladding is arranged on outside magnetic core
Antenna frame, and the transmitting coil and correcting coil being wound in segmented on antenna frame；Magnetic core passes through two respectively
Hold on the magnetic core set that fixed cover is locked in antenna frame under fixed cover and magnetic core；Transmitting coil and correcting coil are by multiply
Silver-plated enamel-covered wire individual layer is symmetrically wound on antenna frame.
Preferably, antenna frame is made of fiberglass, cylindrical, and axial centre sets square through-hole；It is cylindric
Outer wall on be provided with two groups of winding slots corresponding with transmitting coil and correcting coil respectively, magnetic core is set in square through-hole.
Further, antenna frame outer cover, which is provided with, is used to make antenna module righting cushion cover placed in the middle in glass fibre reinforced plastics casing,
The fiberglass that righting cushion cover is etched with sealing ring mounting groove using end face is made.
Further, magnetic core returns font structure using silicon steel sheet stack addition.
Preferably, mandrel uses outside to be wound with being made without magnetic metal material for frp layer.
Further, mandrel uses the outside beryllium-bronze for being wound with center drilling to be made.
Preferably, transmitting coil screen layer and correcting coil screen layer have been covered each by outside transmitting coil and correcting coil.
Further, transmitting coil screen layer and correcting coil screen layer are made of double-faced flexible PCB.
Preferably, fixed cover is made by fiberglass under fixed cover and magnetic core on magnetic core.
Electromagnetic tool transmitter between a kind of well of the present invention, including glass fibre reinforced plastics casing, are arranged on inside glass fibre reinforced plastics casing such as
Transmitting antenna described in any of the above scheme, and it is arranged on the upper seal and lower seal at glass fibre reinforced plastics casing both ends；Under
Pre-tightening apparatus is provided between seal and transmitting antenna, the free end of lower seal sets balance system.
Compared with prior art, the present invention has technique effect beneficial below：
The present invention is transported by setting transmitting coil and correcting coil using the silver-plated enamel-covered wire of multiply in transmitting antenna
With the mode of individual layer coiling so as to add the repeatability of transmitting antenna and stability, segmented symmetrical structure can effectively reduce hair
The stary capacity of coil is penetrated, the winding method of stranded conductor can effectively improve transmitting antenna quality factor.
Further, it is ensured without magnetic characteristic by antenna frame made of fiberglass, inside is square hole, for fixing
Winding slot is carved with magnetic core, antenna frame outside, and for specification transmitting coil direction of winding and position, the width of winding slot being capable of root
Depending on winding diameter, winding diameter is determined by the maximum of transmitting antenna by electric current.
Further, by the righting cushion cover of glass reinforced plastic support so as to position of the fixed transmission coil in glass fibre reinforced plastics casing
Put, remain center condition；And by setting end face seal groove to provide sealing installation site.
Further, magnetic core is formed by stacking using the silicon steel material of high permeability, and external form is hollow structure, increases magnetic force
The guidance quality and conduction of line.Using magnetic core made of the superposition of high-silicon steel band, magnetic flux cross section product is effectively increased, is increased
The magnetic flux of transmitting coil, improve the transmitting magnetic moment of transmitting coil；The magnetic gap structure of high-silicon steel band, effectively improves hair
Ray circle magnetic saturation parameter, the loss of transmitting coil power caused by having greatly reduced magnetic core heating.
Further, mandrel can ensure its good transmission to signal by being made without magnetic metal material；Using outside around
The frp layer of system, is adequately isolated magnetic core and mandrel, avoids antenna Multi-contact caused by deformation, has effectively evaded magnetic
Core and the improper contact problems of mandrel, and then effectively improve the electromagnetic shielding action that instrument crosses line.
Further, using the beryllium-bronze mandrel of outside coiling frp layer, on the basis of mechanical strength is effectively increased,
The electromagnetic signal shield effectiveness that signal instrument crosses line is substantially enhanced, effectively improves the signal to noise ratio of signal.
Further, using the upper and lower fixed cover of magnetic core made of fiberglass magnetic core can be made reliably to be locked at antenna bone
In frame.
Further, good effectiveness can be played by the setting of screen layer, in particular by two-sided soft
After property PCB, solve the electromagnetic scattering problems of transmitting coil, reduce the scattering effect of the electromagnetic wave of transmitting coil, enhance hair
The emission efficiency of ray circle.
Brief description of the drawings
The logging operation schematic diagram of Fig. 1 electromagnetic loggings between well in the prior art.
Fig. 2 electromagnetic tool emitter structures schematic diagrames between heretofore described well.
The sending antenna structure schematic diagram of Fig. 3 electromagnetic tool transmitters between heretofore described well.
Fig. 4 be in Fig. 3 A-A to sectional view.
In figure：Upper seal 1, transmitting antenna 2, glass fibre reinforced plastics casing 3, pre-tightening apparatus 4, lower seal 5, balance system 6, magnetic
Fixed cover 7, antenna frame 8, magnetic core 9, righting cushion cover 10, mandrel 11, transmitting coil 12, transmitting coil screen layer, correction on core
Fixed cover 16 under coil 14, correcting coil screen layer 15, magnetic core.
Embodiment
With reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
Electromagnetic tool transmitter between well of the present invention, as shown in Fig. 2 including upper seal 1, transmitting antenna 2, glass
Glass outer steel shell 3, pre-tightening apparatus 4, lower seal 5 and balance system；Wherein, upper seal 1 is used for sealing system with lower seal 5
Equilibrium oil inside oil pocket, transmitting antenna 2 are the core components of electromagnetic tool transmitter between well, for transmitting coil around
System, glass fibre reinforced plastics casing 3 are used to protect transmitting antenna 2, ensure that transmitting antenna is isolated with external environment condition, with upper seal 1, lower sealing
Body 5 and balance system collectively form a seal cavity, and pre-tightening apparatus 4 is primary to be used to lock the magnetic core 9 in transmitting antenna 2,
Ensure that magnetic core 9 will not rock back and forth in the axial direction of transmitting antenna 2.
In this example, transmitting antenna 2 includes the antenna module being arranged in transmitter glass fibre reinforced plastics casing 3；Such as Fig. 3 and Fig. 4
Shown, antenna module includes mandrel 11, magnetic core 9, antenna frame 8, transmitting coil 12, correcting coil 14, transmitting coil screen layer
13rd, correcting coil screen layer 15, righting cushion cover 10, fixed cover 16 under fixed cover 7 and magnetic core on magnetic core.
As shown in figure 4, antenna frame 8 is centre is square through hole, outside is cylindrical structural, square through hole places hollow
Magnetic core 9, magnetic core 9 is connected with mandrel 11 by magnetic core upper and lower fixed cover locking among magnetic core 9；In the Outer cylindrical of antenna frame 8
Two groups of winding slots are carved with, transmitting coil 12 and correcting coil 14 is wound respectively, is set after the completion of coiling from the wall of antenna frame 8
Axial cell body in draw；A screen layer is covered each by outside coil；The upper and lower ends of antenna frame 8 are respectively provided with righting cushion cover 10,
The high strength glass Steel material that righting cushion cover 10 is carved with sealing ring mounting groove by outside is made, for transmitting coil 12 placed in the middle in glass
Position in glass outer steel shell 3.
Wherein, mandrel 11 is wound with being made without magnetic metal material for frp layer, in this preferred embodiment, mandrel 11 by outer layer
The beryllium-bronze that center drilling is wound with using outside is made；Magnetic core 9 and mandrel 11 are adequately isolated, avoids antenna from causing because of deformation
Multi-contact, and then effectively improve the electromagnetic shielding action that instrument crosses line.Magnetic core 9 is folded by the silicon steel material of high permeability
Add and form, external form is hollow structure, increases the guidance quality and conduction of the magnetic line of force.
Wherein, as shown in figure 3, transmitting coil 12 uses the silver-plated enamel-covered wire coiling of multiply with correcting coil 14, and use
The symmetrical winding mode of segmented；Transmitting coil screen layer 13 is made up with correcting coil screen layer 15 of double-faced flexible PCB.Magnetic core
Upper and lower fixed cover is made up of high strength glass Steel material, magnetic core 9 is reliably locked in antenna frame 8.
Claims (9)
1. the transmitting antenna of electromagnetic tool transmitter between a kind of well, it is characterised in that including being arranged on outside transmitter fiberglass
Antenna module in shell (3)；Described antenna module includes magnetic core (9), through being arranged on the internal mandrel (11) of magnetic core (9),
Cladding is arranged on the outside antenna frame (8) of magnetic core (9), and is wound on the transmitting coil on antenna frame (8) in segmented
And correcting coil (14) (12)；Magnetic core (9) passes through fixed cover (16) under fixed cover (7) on the magnetic core of both ends setting and magnetic core respectively
It is locked in antenna frame (8)；Transmitting coil (12) and correcting coil (14) are by the silver-plated symmetrical coiling of enamel-covered wire individual layer of multiply
On antenna frame (8)；
Described antenna frame (8) is cylindrical, and axial centre sets square through-hole, is set in square through-hole by silicon steel sheet
It is superimposed as Back Word type structured core (9).
2. the transmitting antenna of electromagnetic tool transmitter between a kind of well according to claim 1, it is characterised in that antenna bone
Frame (8) is made of fiberglass, be provided with columned outer wall two groups respectively with transmitting coil (12) and correcting coil (14)
Corresponding winding slot.
3. the transmitting antenna of electromagnetic tool transmitter between a kind of well according to claim 1 or 2, it is characterised in that day
Line skeleton (8) outer cover, which is provided with, to be used to make antenna module righting cushion cover (10) placed in the middle in glass fibre reinforced plastics casing (3), righting cushion cover
(10) fiberglass that sealing ring mounting groove is etched with using end face is made.
4. the transmitting antenna of electromagnetic tool transmitter between a kind of well according to claim 1, it is characterised in that mandrel
(11) outside is used to be wound with being made without magnetic metal material for frp layer.
5. the transmitting antenna of electromagnetic tool transmitter between a kind of well according to claim 1, it is characterised in that mandrel
(11) beryllium-bronze of the outside center drilling for being wound with frp layer is used to be made.
6. the transmitting antenna of electromagnetic tool transmitter between a kind of well according to claim 1, it is characterised in that emission lines
Transmitting coil screen layer (13) and correcting coil screen layer (15) have been covered each by outside circle (12) and correcting coil (14).
7. the transmitting antenna of electromagnetic tool transmitter between a kind of well according to claim 6, it is characterised in that emission lines
Circle screen layer (13) and correcting coil screen layer (15) are made of double-faced flexible PCB.
8. the transmitting antenna of electromagnetic tool transmitter between a kind of well according to claim 1, it is characterised in that on magnetic core
Fixed cover (16) is made by fiberglass under fixed cover (7) and magnetic core.
9. electromagnetic tool transmitter between a kind of well, it is characterised in that including glass fibre reinforced plastics casing (3), be arranged on glass fibre reinforced plastics casing
(3) the internal transmitting antenna (2) as described in claim 1-8 any one, and it is arranged on the upper of glass fibre reinforced plastics casing (3) both ends
Seal (1) and lower seal (5)；Pre-tightening apparatus (4), lower seal are provided between lower seal (5) and transmitting antenna (2)
(5) free end sets balance system (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510069239.9A CN104733863B (en) | 2015-02-09 | 2015-02-09 | Electromagnetic tool transmitter and its transmitting antenna between a kind of well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510069239.9A CN104733863B (en) | 2015-02-09 | 2015-02-09 | Electromagnetic tool transmitter and its transmitting antenna between a kind of well |
Publications (2)
| Publication Number | Publication Date |
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| CN104733863A CN104733863A (en) | 2015-06-24 |
| CN104733863B true CN104733863B (en) | 2017-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510069239.9A Active CN104733863B (en) | 2015-02-09 | 2015-02-09 | Electromagnetic tool transmitter and its transmitting antenna between a kind of well |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107039765B (en) * | 2016-02-04 | 2024-06-25 | 中国石油化工集团有限公司 | Interwell electromagnetic transmitting antenna |
| CN107123850B (en) * | 2016-02-24 | 2019-06-18 | 北京精密机电控制设备研究所 | A kind of receiving antenna and manufacturing method for underground intelligent switch tool |
| CN110265784B (en) * | 2018-03-12 | 2021-02-26 | 中国石油化工股份有限公司 | Antenna device of drilling instrument |
| CN110761782B (en) * | 2019-11-13 | 2024-02-09 | 中国石油天然气集团有限公司 | Direction while-drilling nuclear magnetic resonance logging device for geosteering |
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| CN104733863A (en) | 2015-06-24 |
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