CN110085972A - A kind of antenna transmission circuit with brill orientation electromagnetic wave resistivity logging instrument - Google Patents
A kind of antenna transmission circuit with brill orientation electromagnetic wave resistivity logging instrument Download PDFInfo
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- CN110085972A CN110085972A CN201910371313.0A CN201910371313A CN110085972A CN 110085972 A CN110085972 A CN 110085972A CN 201910371313 A CN201910371313 A CN 201910371313A CN 110085972 A CN110085972 A CN 110085972A
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- 239000003990 capacitor Substances 0.000 claims abstract description 35
- 230000003750 conditioning effect Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 238000005538 encapsulation Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
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- 238000005553 drilling Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
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- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
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- 238000005859 coupling reaction Methods 0.000 description 2
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- 238000005259 measurement Methods 0.000 description 1
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- 239000003208 petroleum Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/225—Supports; Mounting means by structural association with other equipment or articles used in level-measurement devices, e.g. for level gauge measurement
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Transmitters (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of with the antenna transmission circuit for boring orientation electromagnetic wave resistivity logging instrument comprising has receiving unit and transmitting unit, receiving unit includes receiving antenna, conditioning circuit, the first adjustment capacitor Cad, the first adjustment resistance RadWith multiple first resonant matching circuits, multiple first resonant matching circuits are parallel with one another, the first adjustment capacitor CadIt is serially connected between the first end of receiving antenna and the first end of the first resonant matching circuit；Transmitting unit includes transmitting antenna, transmit circuit, second adjustment capacitor Cad1, second adjustment resistance Rad1With multiple second resonant matching circuits, second adjustment capacitor Cad1It is serially connected between the first end of transmitting antenna and the first end of the second resonant matching circuit；First resonant matching circuit includes the resonant inductance and resonant capacitance being sequentially connected in series, and the second resonant matching circuit is identical as the circuit structure of the first resonant matching circuit.The present invention can be improved a day line use ratio, be easy to debugging and safeguard, circuit structure is simpler.
Description
Technical field
The present invention relates to boring orientation electromagnetic wave resistivity logging instrument, more particularly to it is a kind of with boring orientation electromagnetic resistivity
The antenna transmission circuit of logging instrument.
Background technique
It can azimuth-range with real-time detection bed boundary relative to wellbore with orientation electromagnetic wave resistivity logging instrument is bored
Information is used for accurate geosteering, drill bit is avoided to drill out reservoir, has important work in horizontal well and high angle hole drilling well
With.Domestic and international each Logging Company is had developed respectively with electromagnetic wave resistivity logging instrument is bored, and 2005, Schlumberger released
The first generation realizes azimuthal resistivity of earth formations measurement with azimuthal resistivity logger is bored；2006, Baker Hughes Inc released
With boring azimuthal resistivity logging instrument；2007, Halliburton Company is proposed to survey with brill orientation deep investigation electromagnetic resistivity
Well instrument provides the resistivity information of 32 sectors；2014, China Petroleum Great Wall drilling project Co., Ltd was proposed state first
It is interior with bore orientation electromagnetic wave resistivity logging instrument；2015, China Oilfield Services Co., Ltd. was proposed 1 set with brill electromagnetism
Wave array compensates propagation resistivity logging instrument.Orientation electromagnetic resistivity only needs on the basis of tradition is with electromagnetic resistivity is bored
Receiving coil increase a tilt angle or it is laterally disposed it is achieved that therefore antenna receive and dispatch match circuit basic one
It causes, there is different stratum detecting depth and formation interface detection under different tranmitting frequencies with electromagnetic wave resistivity logging instrument is bored
Resolution ratio, traditional method are one frequencies of an antenna match, and newly improved method is an antenna while matching 2 frequencies
Rate improves the utilization rate of antenna, the two frequencies, which are usually compromised, has selected 400kHz and 2MHz double-frequency resonance to match, existing
Double-frequency resonance matching is extremely difficult in parameter selection, is an important technological difficulties.
In the prior art, under the conditions of different tranmitting frequencies, the stratum detecting depth and bed boundary of orientation electromagnetic wave are visited
It is different to survey resolution ratio, frequency is lower, and investigation depth is deeper, but the resolution ratio of formation interface detection is lower；Frequency is higher, and detection is deep
Degree is more shallow, but the resolution ratio of formation interface detection is higher.In order to integrate the advantage and disadvantage of low-and high-frequency, it is confined to the dual-mode antenna of instrument
Number, generally select two kinds of frequencies of 400kHz and 2MHz.Traditional method is one frequency of an antenna match, the benefit of antenna
Very low with rate, newly improved antenna circuit referring to Figure 1, realizes the double-frequency resonance of two frequencies of an antenna match
Match, improve a day line use ratio, but still have following defect:
Firstly, match circuit includes a transformer and tuning coil, the primary inductance of the transformer, tuning coil and
The inductance influences matching effect very big.Transformer, tuning coil and Antenna Design need strict control inductance parameters, and
The usual magnetic circuit closure of transformer, primary and secondary electroreception temperature and transmission power are affected, and cause the drift of resonance point；
Secondly, double-frequency resonance matches the antenna tuning capacitor and two matching tuning capacitances for including, wherein matching is adjusted
It is mutually coupled between humorous capacitor and tuning coil and transformer inductance, resonance frequency is codetermined, to technical staff
Profession require very high, it is very careful to need when circuit debugging, and debugging difficulty is very big；
In addition, double-frequency resonance match circuit can only realize the matching of two frequency bins, a dual-mode antenna cannot achieve simultaneously
Realize the matching of more multifrequency point, the utilization rate of antenna is not high.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the deficiencies of the prior art, providing a kind of for electric with orientation is bored
Magnetic wave resistivity tool, and can be improved a day line use ratio, be easy to debug the antenna simpler with maintenance, circuit structure
Transmission circuit.
In order to solve the above technical problems, the present invention adopts the following technical scheme that.
A kind of antenna transmission circuit with brill orientation electromagnetic wave resistivity logging instrument comprising have receiving unit and transmitting single
Member, in which: the receiving unit includes receiving antenna, conditioning circuit, the first adjustment capacitor Cad, the first adjustment resistance RadWith
Multiple first resonant matching circuits, multiple first resonant matching circuits are parallel with one another, the first adjustment capacitor CadIt is serially connected with institute
It states between the first end of receiving antenna and the first end of first resonant matching circuit, the second end of the receiving antenna and institute
The second end for stating the first resonant matching circuit is connected to the conditioning circuit, the first adjustment resistance RadIt is connected to described
Between the second end of receiving antenna and the second end of first resonant matching circuit；The transmitting unit includes transmitting day
Line, transmit circuit, second adjustment capacitor Cad1, second adjustment resistance Rad1It is humorous with multiple second resonant matching circuits, multiple second
The match circuit that shakes is parallel with one another, the second adjustment capacitor Cad1It is serially connected with the first end of the transmitting antenna and described second humorous
Between the first end of match circuit of shaking, the second end of second resonant matching circuit is connected to the transmit circuit, and described the
Two adjustment resistance Rad1It is serially connected between the second end of the transmitting antenna and the transmit circuit；The first resonance matching electricity
Road includes the resonant inductance and resonant capacitance being sequentially connected in series, and second resonant matching circuit matches electricity with first resonance
The circuit structure on road is identical.
Preferably, in first resonant matching circuit, the first end of the resonant inductance is as first resonance
First end with circuit, the second end of the resonant inductance are connected with the first end of the resonant capacitance, the resonant capacitance
Second end of the second end as first resonant matching circuit.
Preferably, in first resonant matching circuit resonant inductance inductance be greater than the receiving antenna inductance
Amount.
Preferably, the capacitance of resonant capacitance is less than the first adjustment capacitor C in first resonant matching circuitad's
Capacitance.
Preferably, in second resonant matching circuit resonant inductance inductance be greater than the transmitting antenna inductance
Amount.
Preferably, the capacitance of resonant capacitance is less than the second adjustment capacitor C in second resonant matching circuitad1
Capacitance.
Preferably, the conditioning circuit passes through encapsulation process, with enable the receiving antenna and the conditioning circuit mutually every
From.
Preferably, the transmit circuit passes through encapsulation process, with enable the transmitting antenna and the transmit circuit mutually every
From.
In disclosed by the invention, matched using multiple resonant matching circuit composition multifrequency resonance parallel with one another, Mei Gexie
Vibration match circuit only needs a resonant inductance and a resonant capacitance to be connected in series, and in conjunction with adjustment capacitor and adjustment resistance, divides
Transmitting unit and receiving unit are not constituted, wherein receiving antenna and transmitting antenna determine highest transmitting-receiving frequency, the first adjustment
Capacitor CadWith second adjustment capacitor Cad1Determine low frequency rejection ability, the first adjustment resistance RadWith second adjustment resistance Rad1Certainly
The selecting frequency characteristic of system is determined.Based on foregoing circuit principle, so that the structure of antenna transmission circuit is simpler, practical application
In, each resonant matching circuit determines a resonance frequency point, and each resonance frequency point is mutually indepedent, as long as ensuring multiple resonance frequency points
Between be sufficiently spaced-apart it is big, so that it may ensure that antenna transmission circuit works normally, substantially increase a day line use ratio.Meanwhile it is each
Debugging between resonance frequency point is relatively independent, so that debugging is more easier with maintenance work, in addition, inventive antenna transmission circuit
In without transformer so that circuit structure is simpler better meet application demand.
Detailed description of the invention
Fig. 1 is double-frequency resonance match circuit schematic diagram in the prior art；
Fig. 2 is the circuit diagram of receiving unit in inventive antenna transmission circuit；
Fig. 3 is the circuit diagram of transmitting unit in inventive antenna transmission circuit；
Fig. 4 is the reception characteristic test effect curve figure of three frequency resonant matching circuits in the preferred embodiment of the present invention；
Fig. 5 is the emission characteristics test effect curve graph of three frequency resonant matching circuits in the preferred embodiment of the present invention.
Specific embodiment
The present invention is described in more detail with reference to the accompanying drawings and examples.
The invention discloses a kind of with the antenna transmission circuit for boring orientation electromagnetic wave resistivity logging instrument, in conjunction with Fig. 2 and Fig. 3
It is shown comprising to have receiving unit and transmitting unit, in which:
The receiving unit includes receiving antenna 10, conditioning circuit 11, the first adjustment capacitor Cad, the first adjustment resistance
RadWith multiple first resonant matching circuits 12, multiple first resonant matching circuits 12 are parallel with one another, the first adjustment capacitor Cad
It is serially connected between the first end of the receiving antenna 10 and the first end of first resonant matching circuit 12, the receiving antenna
10 second end and the second end of first resonant matching circuit 12 are connected to the conditioning circuit 11, and described first adjusts
Whole resistance RadIt is connected between the second end of the receiving antenna 10 and the second end of first resonant matching circuit 12；
The transmitting unit includes transmitting antenna 20, transmit circuit 21, second adjustment capacitor Cad1, second adjustment resistance
Rad1With multiple second resonant matching circuits 22, multiple second resonant matching circuits 22 are parallel with one another, the second adjustment capacitor
Cad1It is serially connected between the first end of the transmitting antenna 20 and the first end of second resonant matching circuit 22, described second
The second end of resonant matching circuit 22 is connected to the transmit circuit 21, the second adjustment resistance Rad1It is serially connected with the transmitting
Between the second end of antenna 20 and the transmit circuit 21；
First resonant matching circuit 12 includes the resonant inductance and resonant capacitance being sequentially connected in series, second resonance
Match circuit 22 is identical as the circuit structure of first resonant matching circuit 12.
In foregoing circuit, matched using multiple resonant matching circuit composition multifrequency resonance parallel with one another, each resonance
It only needs a resonant inductance and a resonant capacitance to be connected in series with circuit, in conjunction with adjustment capacitor and adjusts resistance, respectively group
At transmitting unit and receiving unit, wherein receiving antenna 10 and transmitting antenna 20 determine highest transmitting-receiving frequency, the first adjustment
Capacitor CadWith second adjustment capacitor Cad1Determine low frequency rejection ability, the first adjustment resistance RadWith second adjustment resistance Rad1Certainly
The selecting frequency characteristic of system is determined.Based on foregoing circuit principle, so that the structure of antenna transmission circuit is simpler, practical application
In, each resonant matching circuit determines a resonance frequency point, and each resonance frequency point is mutually indepedent, as long as ensuring multiple resonance frequency points
Between be sufficiently spaced-apart it is big, so that it may ensure that antenna transmission circuit works normally, substantially increase a day line use ratio.Meanwhile it is each
Debugging between resonance frequency point is relatively independent, so that debugging is more easier with maintenance work, in addition, inventive antenna transmission circuit
In without transformer so that circuit structure is simpler better meet application demand.
In the present embodiment, the conditioning circuit 11 passes through encapsulation process, to enable the receiving antenna 10 and the conditioning electricity
Road 11 is mutually isolated.The transmit circuit 21 passes through encapsulation process, to enable the transmitting antenna 20 and 21 phase of transmit circuit
Mutually isolation.
Relationship and connection relationship, the present embodiment are closed about the position of resonant inductance in resonant matching circuit and resonant capacitance
In, in first resonant matching circuit 12, the first end of the resonant inductance is as first resonant matching circuit 12
First end, the second end of the resonant inductance are connected with the first end of the resonant capacitance, the second end of the resonant capacitance
Second end as first resonant matching circuit 12.
In order to meet resonance requirement, in the present embodiment, the inductance of resonant inductance in first resonant matching circuit 12
Greater than the inductance of the receiving antenna 10.The capacitance of resonant capacitance is less than described the in first resonant matching circuit 12
One adjustment capacitor CadCapacitance.Further, the inductance of resonant inductance should be far longer than the inductance of the receiving antenna 10
Amount.The capacitance of resonant capacitance is far smaller than the first adjustment capacitor CadCapacitance.
Similarly, in second resonant matching circuit 22 resonant inductance inductance be greater than the transmitting antenna 20 electricity
Sensibility reciprocal.The capacitance of resonant capacitance is less than the second adjustment capacitor C in second resonant matching circuit 22ad1Capacitance.
Wherein, the inductance of resonant inductance should be far longer than the inductance of the transmitting antenna 20.The capacitance of resonant capacitance should be much
Less than the second adjustment capacitor Cad1Capacitance.
In a preferred embodiment of the invention, by taking three resonance points as an example, three resonance points are respectively as follows:
If selecting three resonance frequency points is respectively 100kHz, 500kHz and 2MHz, adjusts resistance and generally select 10-50
Ω, adjustment capacitor generally select 100-500nF, and the inductance generally selects 1-5uH.It then needs to meet in practical application to want as follows
It asks: firstly, the interval between three resonance frequency points wants sufficiently large；Secondly, the inductance of resonant inductance is significantly larger than the electricity of antenna
The capacitance of sensibility reciprocal, resonant capacitance will be much smaller than the capacitance of adjustment capacitor；Again, the inductance of antenna and adjustment resistance
Resistance value can not be excessive, otherwise can not normally obtain high-frequency resonant frequency point；In addition, the present embodiment utilizes various groups of series parallel resonance
It closes, it can be achieved that more resonance points, therefore the case where the present invention is not limited to 3 resonance points；Finally, the present invention can without distortions by
Aerial signal transmission is come in, and signal can be further amplified by subsequent amplifying circuit, can also be passed through coupling transformer
It amplifies, wherein coupling transformer requires magnetizing inductance to be far longer than resonant inductance.
Specific test process is as follows:
In transmit circuit, if the inductance of antenna is 2uH, adjustment capacitor is 150nF, and adjustment resistance is 60 Ω.If
Set three resonant inductances L1=150uH, L2=15uH, L3=7.5uH；Three resonant capacitances C1=17nF, C2=are set
422pF, C3=13.5nF, then three frequency points are respectively as follows:
Then, three frequency points of setting are arranged respectively to 100kHz, 500kHz and 2MHz.
About test result, the ratio relation for receiving electric current and reception voltage refers to Fig. 4, in three Frequency points
The induced voltage of the position of 100kHz, 500kHz and 2MHz, antenna is passed without amplitude distortion (0dB) and without phase distortion (0 °)
It is sent to internal system, other frequency points are all suppressed and eliminate, and realize three resonant selecting frequency effects, match compared to double-frequency resonance
For, three frequencies resonance matching realizes induced voltage transmission without distortions, has better magnetic field signal extractability.
Similarly, it is based on identical parameter, three frequencies resonance matching can also be used as transmitting matching, the inductance of antenna is arranged
For 2uH, adjustment capacitor is 150nF, and adjustment resistance (playing metering function here) is 10 Ω.Three resonant inductance L1=are set
150uH, L2=15uH, L3=7.5uH；Three resonant capacitances C1=17nF, C2=422pF, C3=13.5nF are set, then three
A frequency point is still 100kHz, 500kHz and 2MHz.Available emission current meets letter in the position of three resonance frequency points
Single Ohm's law, that is, in the place of three resonance frequency points, emission current is equal to emitting voltage divided by adjustment resistance.
About test result, the ratio relation of emission current and emitting voltage refers to Fig. 5, wherein adjustment resistance is 10
Ω, so emission current is less than 10 times of emitting voltage, the i.e. relationship such as -20dB in figure, and phase is zero in resonance frequency point, by
This explanation, resonance matching and electrical wiring system do not play any inhibition to flowing through for electric current in the position of resonance frequency point.
Based on the above principles as it can be seen that antenna transmission circuit disclosed by the invention, realize a dispatch coil with it is multiple
The combination of resonance point substantially increases the utilization rate of dispatch coil, helps to provide stratum letter more abundant for logger
Breath, according to electromagnetic wave skin effect act on, the investigation depth of multi-resonant match circuit be 2 times of original double resonance match circuit very
At most again, reservoir formation interface can be found earlier than existing logger, can be effectively prevented from and punch reservoir, lead for geology
Formation information much sooner is provided to drilling well work, and then improves the Drilling ratio of drilling well, and efficiently find oil gas dessert
Position.
The above is preferred embodiments of the present invention, is not intended to restrict the invention, all in technology model of the invention
Interior done modification, equivalent replacement or improvement etc. are enclosed, should be included in the range of of the invention protect.
Claims (8)
1. a kind of with the antenna transmission circuit for boring orientation electromagnetic wave resistivity logging instrument, which is characterized in that include receiving unit
And transmitting unit, in which:
The receiving unit includes receiving antenna (10), conditioning circuit (11), the first adjustment capacitor Cad, the first adjustment resistance Rad
With multiple first resonant matching circuits (12), multiple first resonant matching circuits (12) are parallel with one another, the first adjustment capacitor
CadIt is serially connected between the first end of the receiving antenna (10) and the first end of first resonant matching circuit (12), it is described to connect
The second end of the second end and first resonant matching circuit (12) of receiving antenna (10) is connected to the conditioning circuit
(11), the first adjustment resistance RadBe connected to the receiving antenna (10) second end and first resonant matching circuit
(12) between second end；
The transmitting unit includes transmitting antenna (20), transmit circuit (21), second adjustment capacitor Cad1, second adjustment resistance
Rad1With multiple second resonant matching circuits (22), multiple second resonant matching circuits (22) are parallel with one another, the second adjustment electricity
Hold Cad1It is serially connected between the first end of the transmitting antenna (20) and the first end of second resonant matching circuit (22), institute
The second end for stating the second resonant matching circuit (22) is connected to the transmit circuit (21), the second adjustment resistance Rad1Concatenation
Between the second end and the transmit circuit (21) of the transmitting antenna (20)；
First resonant matching circuit (12) includes the resonant inductance and resonant capacitance being sequentially connected in series, second resonance
It is identical as the circuit structure of first resonant matching circuit (12) with circuit (22).
2. as described in claim 1 with the antenna transmission circuit for boring orientation electromagnetic wave resistivity logging instrument, which is characterized in that institute
State in the first resonant matching circuit (12), the first end of the resonant inductance as first resonant matching circuit (12)
One end, the second end of the resonant inductance are connected with the first end of the resonant capacitance, and the second end of the resonant capacitance is made
For the second end of first resonant matching circuit (12).
3. as described in claim 1 with the antenna transmission circuit for boring orientation electromagnetic wave resistivity logging instrument, which is characterized in that institute
The inductance for stating resonant inductance in the first resonant matching circuit (12) is greater than the inductance of the receiving antenna (10).
4. as described in claim 1 with the antenna transmission circuit for boring orientation electromagnetic wave resistivity logging instrument, which is characterized in that institute
The capacitance for stating resonant capacitance in the first resonant matching circuit (12) is less than the first adjustment capacitor CadCapacitance.
5. as described in claim 1 with the antenna transmission circuit for boring orientation electromagnetic wave resistivity logging instrument, which is characterized in that institute
The inductance for stating resonant inductance in the second resonant matching circuit (22) is greater than the inductance of the transmitting antenna (20).
6. as described in claim 1 with the antenna transmission circuit for boring orientation electromagnetic wave resistivity logging instrument, which is characterized in that institute
The capacitance for stating resonant capacitance in the second resonant matching circuit (22) is less than the second adjustment capacitor Cad1Capacitance.
7. as described in claim 1 with the antenna transmission circuit for boring orientation electromagnetic wave resistivity logging instrument, which is characterized in that institute
Conditioning circuit (11) are stated by encapsulation process, to enable the receiving antenna (10) and the conditioning circuit (11) mutually isolated.
8. as described in claim 1 with the antenna transmission circuit for boring orientation electromagnetic wave resistivity logging instrument, which is characterized in that institute
Transmit circuit (21) are stated by encapsulation process, to enable the transmitting antenna (20) and the transmit circuit (21) mutually isolated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371313.0A CN110085972B (en) | 2019-05-06 | 2019-05-06 | Antenna transceiving circuit of while-drilling azimuth electromagnetic wave resistivity logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371313.0A CN110085972B (en) | 2019-05-06 | 2019-05-06 | Antenna transceiving circuit of while-drilling azimuth electromagnetic wave resistivity logging instrument |
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| Publication Number | Publication Date |
|---|---|
| CN110085972A true CN110085972A (en) | 2019-08-02 |
| CN110085972B CN110085972B (en) | 2020-07-24 |
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|---|---|---|---|
| CN201910371313.0A Expired - Fee Related CN110085972B (en) | 2019-05-06 | 2019-05-06 | Antenna transceiving circuit of while-drilling azimuth electromagnetic wave resistivity logging instrument |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113283259A (en) * | 2021-07-19 | 2021-08-20 | 江西博星数码科技有限公司 | RFID-based multi-tag radio frequency identification system and method |
| CN114737961A (en) * | 2022-04-15 | 2022-07-12 | 中国科学院地质与地球物理研究所 | While-drilling azimuth electromagnetic wave resistivity measuring equipment and method |
| CN115021702A (en) * | 2022-06-01 | 2022-09-06 | 吉林大学 | Superaudio electromagnetic emission circuit |
| CN117335154A (en) * | 2023-09-28 | 2024-01-02 | 中国科学院地质与地球物理研究所 | Multi-frequency resonance device and method for electromagnetic wave antenna |
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| JPH1065489A (en) * | 1996-08-13 | 1998-03-06 | Hitachi Ltd | Filter using surface acoustic wave element and antenna branching filter using the filter |
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| CN114737961A (en) * | 2022-04-15 | 2022-07-12 | 中国科学院地质与地球物理研究所 | While-drilling azimuth electromagnetic wave resistivity measuring equipment and method |
| CN114737961B (en) * | 2022-04-15 | 2023-02-28 | 中国科学院地质与地球物理研究所 | Device and method for measuring orientation electromagnetic wave resistivity while drilling |
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| CN117335154A (en) * | 2023-09-28 | 2024-01-02 | 中国科学院地质与地球物理研究所 | Multi-frequency resonance device and method for electromagnetic wave antenna |
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