AU2020103024A4 - Antenna Transceiving Device of Orientation-while-drilling Electromagnetic Wave Resistivity Logging Instrument - Google Patents
Antenna Transceiving Device of Orientation-while-drilling Electromagnetic Wave Resistivity Logging Instrument Download PDFInfo
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- AU2020103024A4 AU2020103024A4 AU2020103024A AU2020103024A AU2020103024A4 AU 2020103024 A4 AU2020103024 A4 AU 2020103024A4 AU 2020103024 A AU2020103024 A AU 2020103024A AU 2020103024 A AU2020103024 A AU 2020103024A AU 2020103024 A4 AU2020103024 A4 AU 2020103024A4
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- resonant matching
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/24—Continuous tuning of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency, e.g. for single-knob tuning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
- G01V3/26—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
- G01V3/28—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device using induction coils
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
- H03H7/1766—Parallel LC in series path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/38—Impedance-matching networks
- H03H2007/386—Multiple band impedance matching
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J2200/00—Indexing scheme relating to tuning resonant circuits and selecting resonant circuits
- H03J2200/06—Tuning of antenna
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
- H04B2001/1072—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal by tuning the receiver frequency
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Transmitters (AREA)
Abstract
The invention discloses an antenna transceiving device of orientation-while-drilling
electromagnetic wave resistivity logging instrument, which comprises a receiving unit and a
transmitting unit, wherein the receiving unit comprises a receiving antenna, a conditioning
circuit, a first adjusting capacitor Cad, a first adjusting resistor Ra and a plurality of first
resonant matching circuits; the plurality of first resonant matching circuits are connected in
parallel; the first adjusting capacitor Cad is connected in series between a first end of the
receiving antenna and a first end of the first resonant matching circuit; the transmitting unit
comprises a transmitting antenna, a transmitting circuit, a second adjusting capacitor Cadi, a
second adjusting resistor Radi and a plurality of second resonant matching circuits; the second
adjusting capacitor Cai is connected in series between the first end of the transmitting antenna
and the first end of the second resonant matching circuit; the first resonant matching circuit
includes resonant inductors and resonant capacitors in series, and the second resonant matching
circuit has the same circuit structure as the first resonant matching circuit. The invention can
improve the utilization rate of the antenna, facilitate debugging and maintenance, and simplify
the circuit structure.
1 /3
R
CdCad n
T
Rad
/ |I
B
Figure 1
12
10
C1 12 11
/ \ -----------------------------
Figure 2
Description
1 /3
CdCad n
T Rad
/ |I
B Figure 1
12
10 C1 12 11
Figure 2
Antenna Transceiving Device of Orientation-while-drilling Electromagnetic
Wave Resistivity Logging Instrument
[01] The invention relates to an orientation-while-drilling electromagnetic wave resistivity logging instrument, in particular to an antenna transceiving device of orientation-while-drilling electromagnetic wave resistivity logging instrument.
[02] An orientation-while-drilling electromagnetic wave resistivity logging instrument can detect the orientation and distance information of a formation interface relative to a borehole in real time, is used for accurate geological guidance, avoids the drill bit from drilling out of the reservoir by a drill bit, and plays an important role in horizontal well drilling and high-inclination well drilling. Various logging companies at home and abroad have developed orientation-while-drilling electromagnetic wave resistivity logging instruments. In 2005, Schlumberger Limited introduced the first generation of orientation-while-drilling electromagnetic wave resistivity logging instrument, and achieved formation azimuth resistivity measurement. In 2006, Baker Hughes Incorporated introduced azimuth resistivity logging instruments while drilling. In 2007, Halliburton Company introduced electromagnetic wave resistivity logging instruments while drilling, and provided 32 sectors of resistivity information. In 2014, China Great Wall Drilling Engineering Co., Ltd. first introduced the orientation-while drilling electromagnetic wave resistivity logging instrument. In 2015, Zhonghai Oilfield Service Co., Ltd. launched a set of electromagnetic array while drilling compensation propagation resistivity logging instrument. The azimuth electromagnetic wave resistivity can be realized only by adding an inclined angle to the receiving coil or placing the receiving coil transversely on the basis of the traditional electromagnetic wave resistivity while drilling, so that the antenna receiving and transmitting matching circuits are basically consistent, and the electromagnetic wave resistivity logging instrument while drilling has different formation detection depths and formation interface detection resolutions under different transmission frequencies. The traditional method is to match one antenna with one frequency. The latest improved method is to match one antenna with two frequencies at the same time to improve the utilization rate of the antenna. The two frequencies usually choose 400kHz and 2MHz dual frequency resonance matching. The existing dual frequency resonance matching is very difficult in parameter selection, which is an important technical difficulty.
[03] In the prior art, under the condition of different emission frequencies, the stratum detection depth of the azimuth electromagnetic wave is different from the stratum interface detection resolution, the lower the frequency, the deeper the detection depth, but the lower the resolution of formation interface detection; the higher the frequency, the shallower the detection depth, but the higher the resolution of formation interface detection. In order to integrate the advantages and disadvantages of high and low frequency, but due to the limited number of receiving and transmitting antennas, 400kHz and 2MHz are usually selected. The traditional method is that one antenna matches one frequency, and the utilization rate of the antenna is very low. For the latest improved antenna circuit, shown in Figure 1, which realizes the dual frequency resonant matching of one antenna matching two frequencies, and improves the utilization rate of antenna, but there are still defects as follows:
[04] Firstly, the matching circuit comprises a transformer and a tuning inductance, and the primary inductance of the transformer, the tuning inductance and the antenna inductance have great influence on the matching effect. The design of the transformer, the tuning inductor and the antenna needs to strictly control the inductance parameter, and the transformer normally closes the magnetic circuit, and the primary and secondary inductance greatly influenced by temperature and the transmitting power , thus causing the drift of the resonance point;
[05] Secondly, the dual-frequency resonant matching comprises one antenna tuning capacitor and two matching tuning capacitors, wherein the matching tuning capacitors are mutually coupled with the tuning inductor and the primary inductance of the transformer to jointly determine the resonance frequency, which has high professional requirements for technicians, thus the circuit debugging needs to be carried out very carefully, and the debugging is difficult;
[06] In addition, the dual-frequency resonant matching circuit can only achieve the matching of two frequency points, and cannot achieve the matching of more frequency points with one transmitting and receiving antenna, and the utilization rate of the antenna is not high.
[07] The technical problem to be solved by the invention is, aiming at the defects of the prior art, to provide the antenna transceiving device of the orientation-while drilling electromagnetic wave resistivity logging instrument, which can improve the utilization rate of the antenna, is easy to debug and maintain, and has a simpler circuit structure.
[08] In order to solve the technical problems, the invention adopts the following technical scheme.
[09] The invention relates to an antenna transceiving device of orientation while-drilling electromagnetic wave resistivity logging instrument, which comprises a receiving unit, a transmitting unit, wherein the receiving unit comprises a receiving antenna, a conditioning circuit, a first adjusting capacitor Cad, a first adjusting resistor Rad, a plurality of first resonant matching circuits; the plurality of first resonant matching circuits are connected in parallel; the first adjusting capacitor Cad is connected between a first end of the receiving antenna and a first end of thefirst resonant matching circuit in series; a second end of the receiving antenna and a second end of the first resonant matching circuit are respectively connected with the conditioning circuit; the first adjusting resistor Ra is connected between a second end of the receiving antenna and a second end of the first resonant matching circuit; The transmitting unit includes a transmitting antenna, a transmitting circuit, a second adjusting capacitor Cadi, a second adjusting resistor Radi, and a plurality of second resonant matching circuits, the plurality of second resonant matching circuits is connected in series, the second adjusting capacitor Cadi is connected in series between a first end of the transmitting antenna and a first end of the second resonant matching circuit, the second end of the second resonant matching circuit is connected with the transmitting circuit, the second adjusting resistor Radi is connected in series between a second end of the transmitting antenna and the transmitting circuit, the first resonant matching circuit comprises a resonance inductor and a resonance capacitor which are sequentially connected in series, and the circuit structure of the second resonant matching circuit is the same as that of the first resonant matching circuit.
[010] Preferably, in the first resonant matching circuit, the first end of the resonant inductor is used as the first end of thefirst resonant matching circuit, the second end of the resonance inductor is connected with the first end of the resonance capacitor, and the second end of the resonance capacitor is used as the second end of the first resonant matching circuit.
[011] Preferably, the resonant inductance value in the first resonant matching circuit is greater than that of the receiving antenna.
[012] Preferably, the resonant capacitance in the first resonant matching circuit is smaller than that of the first adjusting capacitance Cad.
[013] Preferably, the resonant inductance in the second resonant matching circuit is greater than that of the transmitting antenna.
[014] Preferably, the resonant capacitance value in the second resonant matching circuit is smaller than that of the second adjusting capacitance Cadi.
[015] Preferably, the conditioning circuit is sealed to isolate the receiving antenna from the conditioning circuit.
[016] Preferably, the transmitting circuit is sealed to isolate the transmitting antenna from the transmitting circuit.
[017] In the invention, multiple parallel resonant matching circuits are used to form multi frequency resonant matching. Each resonant matching circuit only needs a resonant inductor and a resonant capacitor in series. Then, combining with adjusting capacitance and adjusting resistance, the transmitting unit and receiving unit are formed respectively, wherein the receiving antenna and the transmitting antenna determine the highest transmitting and receiving frequency, the first adjusting capacitor Cad and the second adjusting capacitor Cadi determine the low-frequency suppression capability, and the first adjusting resistor Ra and the second adjusting resistor Radi determine the frequency selection characteristic of the system. Based on the above circuit principle, the structure of the antenna transceiving circuit is simpler; in practical application, each resonant matching circuit determines one resonant frequency point, and each resonant frequency point is independent; and as long as the plurality of resonant frequency points are sufficiently separated, the normal operation of the antenna transceiving circuit can be ensured, and the antenna utilization rate is greatly improved. Meanwhile, debugging among the resonant frequency points is relatively independent, which makes the debugging and maintenance easier; and in addition, the antenna transceiver circuit of the invention does not need a transformer, which makes the circuit structure simpler and better meets the application requirements.
[018] Figure 1 is a schematic diagram of a dual-frequency resonant matching circuit in the prior art;
[019] Figure 2 is a schematic circuit diagram of a receiving unit in an antenna transceiver circuit according to the present invention;
[020] Figure 3 is a schematic circuit diagram of a transmitting unit in an antenna transceiver circuit according to the present invention;
[021] Figure 4 is a graph showing a reception characteristic test effect of a three frequency resonant matching circuit according to a preferred embodiment of the present invention;
[022] Figure 5 is a graph showing an emission characteristic test effect of a three frequency resonant matching circuit according to a preferred embodiment of the present invention.
[023] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments.
[024] The invention discloses an antenna transceiving device of orientation while-drilling electromagnetic wave resistivity logging instrument, as is shown in Figs. 2 and 3, which comprises a receiving unit and a transmitting unit, wherein:
[025] The receiving unit comprises a receiving antenna 10, a conditioning circuit 11, a first adjusting capacitor Cad, a first adjusting resistor Ra, a plurality of first resonant matching circuits 12, wherein the plurality of first resonant matching circuits 12 are connected in parallel with each other; the first adjusting capacitor Cad is connected in series between a first end of the receiving antenna 10 and a first end of the first resonant matching circuit 12; a second end of the receiving antenna 10 and a second end of the first resonant matching circuits 12 are connected with the conditioning circuit 11 respectively, the first adjusting resistor Ra is connected between a second end of the receiving antenna 10 and a second end of the first resonant matching circuit 12;
[026] The transmitting unit comprises a transmitting antenna 20, a transmitting circuit 21, a second adjusting capacitor Cadi, a second adjusting resistor Radi, a plurality of second resonant matching circuits 22, wherein the plurality of second resonant matching circuits 22 are connected in parallel; the second adjusting capacitor Cadi is connected in series between a first end of the transmitting antenna 20 and a first end of the second resonant matching circuit 22; the second end of the second resonant matching circuit 22 is connected with transmitting circuit 21, the second adjusting resistor Radi is connected in series between a second end of the transmitting antenna 20 and the transmitting circuit 21.
[027] The first resonant matching circuit 12 includes a resonance inductor and a resonant capacitor connected in series in this order, and the second resonant matching circuit 22 has the same circuit structure as the first resonant matching circuit 12.
[028] In the above circuit, multiple parallel resonant matching circuits are used to form multi frequency resonant matching. Each resonant matching circuit only needs a resonant inductor and a resonant capacitor in series. Then, combining with adjusting capacitance and adjusting resistance, the transmitting unit and receiving unit are formed respectively, wherein the receiving antenna 10 and the transmitting antenna 20 determine the highest transmitting and receiving frequency, the first adjusting capacitor Cad and the second adjusting capacitor Cadi determine the low-frequency suppression capability, and the first adjusting resistor Rad and the second adjusting resistor Radi determine the frequency selection characteristic of the system. Based on the above circuit principle, the structure of the antenna transceiving circuit is simpler; in practical application, each resonant matching circuit determines one resonant frequency point, and each resonant frequency point is independent; and as long as the plurality of resonant frequency points are sufficiently separated, the normal operation of the antenna transceiving circuit can be ensured, and the antenna utilization rate is greatly improved. Meanwhile, the debugging among the resonant frequency points is relatively independent, which makes the debugging and maintenance easier; and in addition, the antenna transceiver circuit of the invention does not need a transformer, which makes the circuit structure simpler and better meets the application requirements.
[029] In this embodiment, the conditioning circuit 11 is sealed to isolate the receiving antenna 10 from the conditioning circuit 11. The transmitting circuit 21 is sealed to isolate the transmitting antenna 20 from the transmitting circuit 21.
[030] With respect to the position-related relationship and the connection relationship between the resonance inductor and the resonance capacitor in the resonant matching circuit, in this embodiment, in the first resonant matching circuit 12, the first end of the resonance inductor is used as the first end of the first resonant matching circuit 12, the second end of the resonance inductor is connected with the first end of the resonance capacitor, and the second end of the resonance capacitor is used as the second end of the first resonant matching circuit 12.
[031] In order to satisfy the resonance requirement, in this embodiment, the resonance inductance in the first resonant matching circuit 12 is larger than that of the receiving antenna 10. The resonant capacitance in the first resonant matching circuit 12 is smaller than that of thefirst adjusting capacitance Cad. Further, the resonant inductance value should be much greater than that of the receiving antenna 10. The resonant capacitance is far smaller than that of thefirst adjusting capacitance Cad.
[032] Similarly, the resonant inductance in the second resonant matching circuit 22 is greater than that of the transmitting antenna 20. The resonant capacitance in the second resonant matching circuit 22 is less than the capacitance value of the second adjusting capacitance Cadi. Wherein the resonant inductance should be much greater than that of the transmitting antenna 20, the resonant capacitance should be much less than the second adjusting capacitance Cad.
[033] In the preferred embodiment of the present invention, three resonant points are taken as examples, and the three resonant points are:
112
[034] f22
f3 2n == 2L 3 C 3
[035] If the three resonant frequency points are selected to be 100 kHz, 500 kHz and 2 MHz, respectively, the adjusting resistance is generally selected to be 10-50Q, the adjusting capacitance is generally selected to be 100-500 nF, and the antenna inductance is generally selected to be 1-5 uH. In practical application, the following requirements need to be met: firstly, the interval between three resonant frequency points should be large enough; secondly, the resonant inductance is far larger than the inductance of the antenna, and the resonant capacitance is far smaller than the adjusting capacitance; thirdly, the inductance of the antenna and the resistance of the adjusting resistor cannot be too large, and otherwise, high-frequency resonant frequency points cannot be normally obtained; in addition, in the embodiment, due to the adoption of various combinations of series-parallel resonance, more resonant points can be realized, so that the invention is not limited to the condition of three resonant points; and finally, the invention can transmit the antenna signal without distortion, further amplify the signal through a subsequent amplifying circuit, and can also amplify the signal through a coupling transformer, wherein the excitation inductance is much larger than the resonant inductance.
[036] The specific test process is as follows:
[037] In the transmission circuit, if the inductance of the antenna is 2uH, the adjusting capacitance is 150nF, and the adjusting resistance is 60Q. Set three resonant inductors L1=150uH, L2=15uH, L3=7.5uH, three resonant capacitors C1=17nF, C2=422pF, C3=13.5nF, then the three frequency points are respectively as follows:
1 = 100kHz L7J 1 C 1
[038] f2 = 2MHz;
f3I = 1-= 500kHz 27TL 3 C 3
[039] Thus, the three frequency points are set to be 100 kHz, 500 kHz, and 2 MHz respectively.
[040] For the test results, the ratio of the receiving current to the receiving voltage is shown in Figure 4, at three frequency points of 100kHz, 500kHz and 2MHz, the induced voltage of the antenna is transmitted to the interior of the system without amplitude distortion (OdB) and phase distortion (OdB), and other frequency points are suppressed or eliminated, so that three resonance frequency selection effects are realized; and compared with double-frequency resonant matching, the three-frequency resonant matching realizes distortion-free induced voltage transmission, and has better magnetic field signal extraction capability.
[041] Similarly, based on the same parameters, the three-frequency resonant matching can also be used as the transmission matching, wherein the inductance of the antenna is set to be 2uH, the adjusting capacitance is set to be 150nF, and the adjusting resistance (playing a current limiting role here) is set to be 10. Set three resonant inductors Li = 150uH, L2 = 15uH, L3 = 7.5uH; set three resonant capacitors Cl = 17nF, C2 = 422pF, C3 = 13.5nF, then the three frequency points are still 100kHz, 500KHz and 2MHz, it can be obtained that the emission current at the three resonant frequency points satisfies the simple Ohm's law, that is, at the three resonant frequency points, the emission current is equal to the emission voltage divided by the adjusting resistance.
[042] With respect to the test results, the ratio of the transmission current to the transmission voltage is shown in Figure 5, wherein the adjusting resistance is10, so that the transmission current is 10 times less than the transmission voltage, i. e., the relationship of-20 dB in the figure, and the phase is zero at the resonance frequency point, thereby illustrating that the resonant matching at the resonance frequency point do not hinder the current flow.
[043] Based on the principle, the antenna transceiving circuit disclosed by the invention realizes the combination of one transceiving coil and a plurality of resonant points, greatly improves the utilization rate of the transceiving coil, is beneficial to providing richer formation information for a well logging instrument, has the detection depth of the multi-resonant matching circuit which is 2 times or even multiple times of that of the original double-resonant matching circuit according to the action of the electromagnetic wave skin effect, can find the reservoir formation interface earlier than the existing well logging instrument, can effectively avoid penetrating the reservoir, provides more timely formation information for geological steering drilling work, further improves the drilling rate of the well and effectively locate the sweet spot of oil gas.
[044] Although the invention has been described with reference to specific examples, it will be appreciated by those skilled in the art that the invention may be embodied in many other forms, in keeping with the broad principles and the spirit of the invention described herein.
[045] The present invention and the described embodiments specifically include the best method known to the applicant of performing the invention. The present invention and the described preferred embodiments specifically include at least one feature that is industrially applicable
Claims (8)
1. The antenna transceiving device of orientation-while-drilling electromagnetic wave resistivity logging instrument, which is characterized in that it comprises a receiving unit and a transmitting unit, wherein:
The receiving unit comprises a receiving antenna (10), a conditioning circuit (11), a first adjusting capacitor Cad, a first adjusting resistor Ra, a plurality of first resonant matching circuits (12), wherein the plurality of the first resonant matching circuits (12) are connected in parallel with each other; the first adjusting capacitor Cad is connected in series between a first end of the receiving antenna (10) and a first end of the first resonant matching circuit (12); the second end of the receiving antenna (10) and the second end of the first resonance matching circuit (12) are respectively connected with the conditioning circuit (11), the first adjusting resistor Cad is connected between a second end of the receiving antenna (10) and a second end of the first resonant matching circuit (12);
The transmitting unit comprises a transmitting antenna (20), a transmitting circuit (21), a second adjusting capacitor Cadi, a second adjusting resistor Radi, a plurality of second resonant matching circuits (22), wherein the plurality of second resonant matching circuits (22) are connected in parallel; the second adjusting capacitor Cai is connected in series between a first end of the transmitting antenna (20) and a
first end of the second resonant matching circuit (22); the second end of the second resonant matching circuit (22) is connected with the transmission circuit (21), the second adjusting resistor Radiis connected in series between the second end of the transmitting antenna (20) and the transmitting circuit (21);
The first resonant matching circuit (12) comprises a resonant inductor and a resonant capacitor which are sequentially connected in series, and the second resonant matching circuit (22) has the same circuit structure as the first resonant matching circuit (12).
2. The antenna transceiving device of orientation-while-drilling electromagnetic wave resistivity logging instrument, according to claim 1, is characterized in that, in the first resonant matching circuit (12), the first end of the resonant inductor is used as a first end of the first resonant matching circuit (12), the second end of the resonant inductor is connected with a first end of the resonant capacitor, and the second end of the resonant capacitor is used as a second end of thefirst resonant matching circuit (12).
3. The antenna transceiving device of orientation-while-drilling electromagnetic wave resistivity logging instrument, according to claim 1, is characterized in that the resonant inductance in the first resonant matching circuit (12) is greater than the inductance of the receiving antenna (10).
4. The antenna transceiving device of orientation-while-drilling electromagnetic wave resistivity logging instrument, according to claim 1, is characterized in that the resonant capacitance in the first resonant matching circuit (12) is smaller than the first adjusting capacitance Cad.
5. The antenna transceiving device of orientation-while-drilling electromagnetic wave resistivity logging instrument, according to claim 1, is characterized in that the inductance of the resonant inductance in the second resonant matching circuit (22) is greater than the inductance of the transmitting antenna (20).
6. The antenna transceiving device of orientation-while-drilling electromagnetic wave resistivity logging instrument, according to claim 1, is characterized in that the resonant capacitance in the second resonant matching circuit (22) is smaller than the second adjusting capacitance CadI.
7. The antenna transceiving device of orientation-while-drilling electromagnetic wave resistivity logging instrument, according to claim 1, is characterized in that the conditioning circuit (11) is sealed to isolate the receiving antenna (10) from the conditioning circuit (11).
8. The antenna transceiving device of orientation-while-drilling electromagnetic wave resistivity logging instrument, according to claim 1, is characterized in that the transmitting circuit (21) is sealed to isolate the transmitting antenna (20) from the transmitting circuit (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2020103024A AU2020103024A4 (en) | 2020-10-27 | 2020-10-27 | Antenna Transceiving Device of Orientation-while-drilling Electromagnetic Wave Resistivity Logging Instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2020103024A AU2020103024A4 (en) | 2020-10-27 | 2020-10-27 | Antenna Transceiving Device of Orientation-while-drilling Electromagnetic Wave Resistivity Logging Instrument |
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| AU2020103024A4 true AU2020103024A4 (en) | 2020-12-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN116856920A (en) * | 2023-07-06 | 2023-10-10 | 中国科学院地质与地球物理研究所 | Application method and instrument of azimuth electromagnetic wave resistivity while drilling instrument |
| CN117950065A (en) * | 2024-03-26 | 2024-04-30 | 中国石油大学(华东) | Layer thickness correction method for resistivity logging data of horizontal well array |
-
2020
- 2020-10-27 AU AU2020103024A patent/AU2020103024A4/en not_active Ceased
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN115021702A (en) * | 2022-06-01 | 2022-09-06 | 吉林大学 | Superaudio electromagnetic emission circuit |
| CN116856920A (en) * | 2023-07-06 | 2023-10-10 | 中国科学院地质与地球物理研究所 | Application method and instrument of azimuth electromagnetic wave resistivity while drilling instrument |
| CN116856920B (en) * | 2023-07-06 | 2024-04-02 | 中国科学院地质与地球物理研究所 | Application method and instrument of azimuth electromagnetic wave resistivity while drilling instrument |
| CN117950065A (en) * | 2024-03-26 | 2024-04-30 | 中国石油大学(华东) | Layer thickness correction method for resistivity logging data of horizontal well array |
| CN117950065B (en) * | 2024-03-26 | 2024-06-07 | 中国石油大学(华东) | Layer thickness correction method for resistivity logging data of horizontal well array |
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