阅读说明：本技术 一种钻铤式井下信息声波传输中继装置及方法 (Drill collar type underground information sound wave transmission relay device and method ) 是由 赵国山 冯光通 于克武 李茜 张诒民 孙梅 付琦 初雯 朱海龙 范光第 石昆 于 2020-11-23 设计创作，主要内容包括：本发明涉及一种钻铤式井下信息声波传输中继装置及方法。其技术方案是：包括发射模块、电源模块、中控模块、采集模块、保护壳体,发射总成插件外部加工安装槽实现圆柱状宽带发射换能器的安装,发射换能器采用超磁致伸缩换能器,发射总成插件外部加工发射定位键槽,定位键槽辅助发射模块与电源模块连接；中控模块接收采集模块输出的电信号,所述发射模块、电源模块和中控模块以插件形式安装固定在保护壳体内,保护壳体与采集模块进行连接,通过内嵌式滑环进行供电和通讯。有益效果是：本发明可以实现拓展钻柱中声波的传输距离,中继装置具备声信号采集识别和发射的能力,从而满足井下信息中继转发功能的需求。(The invention relates to a drill collar type underground information sound wave transmission relay device and a method. The technical scheme is as follows: the cylindrical broadband transmitting transducer is mounted by machining a mounting groove outside a plug-in of a transmitting assembly, the transmitting transducer adopts a giant magnetostrictive transducer, a transmitting positioning key groove is machined outside the plug-in of the transmitting assembly, and the positioning key groove assists the transmitting module to be connected with the power module; the central control module receives the electric signal output by the acquisition module, the transmitting module, the power supply module and the central control module are installed and fixed in the protective shell in a plug-in mode, and the protective shell is connected with the acquisition module and is used for supplying power and communicating through the embedded slip ring. The beneficial effects are that: the invention can realize the expansion of the transmission distance of sound waves in the drill column, and the relay device has the capability of collecting, identifying and transmitting sound signals, thereby meeting the requirement of the underground information relay and forwarding function.)

1. A drill collar type underground information sound wave transmission relay device is characterized in that: the device comprises a transmitting module (1), a power module (2), a central control module (3), an acquisition module (4) and a protective shell (5), wherein the transmitting module (1) mainly comprises a transmitting assembly plug-in (6), a transmitting transducer (7) and a transmitting positioning key slot (8) and is used for transmitting underground information sound waves, the cylindrical broadband transmitting transducer (7) is installed in a processing installation groove (9) outside the transmitting assembly plug-in (6), the transmitting transducer (7) adopts a giant magnetostrictive transducer, the transmitting positioning key slot (8) is processed outside the transmitting assembly plug-in (6), and the positioning key slot (8) assists the transmitting module (1) to be connected with the power module (2);

the central control module (3) receives the electric signals output by the acquisition module (4), the transmitting module (1), the power supply module (2) and the central control module (3) are installed and fixed in the protective shell (5) in a plug-in mode, the protective shell (5) is connected with the acquisition module (4), and power supply and communication are carried out through the embedded slip ring.

2. The collar-type downhole information acoustic transmission relay device of claim 1, wherein: the power module (2) mainly comprises a power assembly plug-in (10), a power positioning key groove (11), a power positioning key (12), a power supply socket (13), a battery mounting framework (14) and a lithium battery (15), and is used for supplying power to an acquisition and transmitting circuit of the instrument; a battery mounting framework (14) is processed outside the power supply assembly plug-in (10), and lithium batteries (15) are annularly distributed on the battery mounting framework (14); power assembly plug-in components (10) outside processing power location keyway (11) and power location key (12), power location key (12) auxiliary emission module (1) is connected with power module (2), and power location keyway (11) are supplementary well accuse module (3) and are connected with power module (2), and power supply socket (13) are connected with the contact pin and are used for supplying power for instrument in the pit.

3. The collar-type downhole information acoustic transmission relay device of claim 2, wherein: the interior of the power supply assembly plug-in (10) is processed by shot blasting, the power supply assembly plug-in (10) and the battery mounting framework (14) are made of non-magnetic materials, and the lithium battery (15) is composed of high-temperature lithium batteries.

4. The collar-type downhole information acoustic transmission relay device of claim 1, wherein: the central control module (3) mainly comprises a central control assembly plug-in (16), a circuit mounting groove (17), a conducting ring (18), an elastic conducting rod (19), a drill collar embedded female slip ring (20), a sliding cover (21), a central control positioning key (22), a signal conditioning circuit (23), a data processing circuit (24), a power amplifying circuit (25) and a high-voltage driving circuit (26), wherein the circuit mounting groove (17) is processed outside the central control assembly plug-in (16), the central control module (3) receives an electric signal output by the acquisition module (4) and performs preprocessing through the signal conditioning circuit (23), the signal conditioning circuit (23) comprises a filtering and amplifying circuit (27) and a sampling and holding circuit (28), the preprocessing of the signal conditioning circuit (23) mainly amplifies, filters and adjusts the acquired signal and then sends the signal to the data processing circuit (24) through an A/D analog-to-digital conversion (32), the data processing circuit (24) mainly comprises a microprocessor (29) and a digital signal processor (30), the data processing circuit (24) completes resolving of collected data, effective data are obtained after demodulation and decoding, then the effective data are recoded and modulated and then output, the digital signal processor (30) controls a D/A digital-to-analog converter (31) to generate control signals, and the control signals pass through a power amplifying circuit (25) and a high-voltage driving circuit (26) to drive the transmitting transducer (7) to transmit sound wave signals outwards.

5. The collar-type downhole information acoustic transmission relay device of claim 4, wherein: the signal conditioning circuit (23), the data processing circuit (24), the power amplification circuit (25) and the high-voltage driving circuit (26) are fixedly installed on the circuit installation groove (17) and are packaged by adopting a sliding cover (21), the packaged circuit is connected with the elastic conducting rod (19) through the conducting ring (18), the conducting ring (18) is installed on the central control assembly plug-in, the cross section of the conducting ring is arc-shaped, the elastic conducting rod (19) is in arc-surface contact with the conducting ring (18), and the elastic conducting rod (19) is connected with the embedded female sliding ring (20), so that the power supply and communication functions are realized.

6. The collar type downhole information acoustic transmission relay device according to claim 4 or 5, wherein: shot blasting is adopted inside the central control assembly plug-in (16), and the central control assembly plug-in (16) and the circuit installation groove (17) are made of nonmagnetic materials.

7. The collar-type downhole information acoustic transmission relay device of claim 1, wherein: the acquisition module (4) mainly comprises an acquisition pup joint body (32), a circuit installation groove (33), a cover plate (34), a data preprocessing circuit (35), a drill collar embedded type male slip ring (36) and a sound wave receiving sensor (37) and is used for acquiring and preprocessing underground sound wave transmission signals, the circuit installation groove (33) is processed outside the acquisition pup joint body (32) and packaged through the cover plate (34), the sound wave receiving sensor (37) receives the sound wave signals, the data preprocessing circuit (35) mainly acquires and preprocesses the underground sound signals received by the sound wave receiving sensor and transmits the acquired data to the central control module (3) for data processing, the data preprocessing circuit (35) mainly completes signal preliminary filtering and adjustment, related circuits are fixed in the circuit installation groove (33), and related circuit wiring is connected with the embedded type male slip ring (36) through wires, after the instrument is assembled, the embedded male slip ring (36) and the embedded female slip ring (20) are connected, so that power supply and communication functions are achieved.

8. The collar-type downhole information acoustic transmission relay device of claim 7, wherein: the inner part of the collecting short section body (32) is processed by shot blasting, and the collecting short section body (32) and the cover plate (34) are made of nonmagnetic materials.

Technical Field

The invention relates to the technical field of while-drilling instruments, in particular to a drill collar type underground information sound wave transmission relay device and a drill collar type underground information sound wave transmission relay method.

Background

For the underground information wireless transmission technology, the drilling fluid pulse mode is used most widely, but the mode has limited transmission capacity, the data volume needing to be transmitted is larger and larger, so that the mode cannot meet the increasing technical requirements, meanwhile, the compressibility of gas and various unconventional drilling fluids is strong, effective drilling fluid pulse cannot be generated, and the traditional drilling fluid pulse transmission mode cannot be used. The acoustic transmission mode has the advantages of simple structure, lower cost, easy directional transmission and the like, and meanwhile, a drill column used in the petroleum drilling process penetrates through the whole shaft from top to bottom, so that the unique condition is provided for the high-speed transmission of acoustic waves. The drill string structure is the inhomogeneous tubular column structure, and the decay problem when the sound wave propagates in the drill string is especially outstanding, has restricted sound wave transmission distance in the drill string, for improving information sound wave transmission distance in the pit, needs research and development relay device to extend the transmission distance of sound wave in the drill string, and relay device will satisfy information forwarding function in the pit, needs possess the function of acoustic signal collection discernment and acoustic signal transmission simultaneously.

Disclosure of Invention

The invention aims to provide a drill collar type underground information sound wave transmission relay device and a method aiming at the defects in the prior art, wherein the drilling information sound wave transmission mode is a mode of taking a drill string as a sound signal transmission channel and taking sound waves as a signal carrier to carry out wireless transmission of underground information. When the transmission depth of the acoustic signal in the drill string reaches a certain depth, the attenuated acoustic carrier signal cannot be received by the wellhead receiving device, and in order to increase the acoustic transmission distance and enable the acoustic carrier signal to be smoothly received and analyzed by the wellhead, an acoustic relay device needs to be installed at a proper position in the drill string. According to the structure of a drill column channel and the characteristics of drilling construction, a drill collar type relay structure is adopted, the relay device receives, amplifies and transmits underground acoustic signals for the second time, and attenuated acoustic carriers can be transmitted to a wellhead to be smoothly received by the receiving device after being amplified.

The invention provides a drill collar type underground information sound wave transmission relay device and a method, and the technical scheme is as follows: the device comprises a transmitting module (1), a power module (2), a central control module (3), an acquisition module (4) and a protective shell (5), wherein the transmitting module (1) mainly comprises a transmitting assembly plug-in (6), a transmitting transducer (7) and a transmitting positioning key slot (8) and is used for transmitting underground information sound waves, the cylindrical broadband transmitting transducer (7) is installed in a processing installation groove (9) outside the transmitting assembly plug-in (6), the transmitting transducer (7) adopts a giant magnetostrictive transducer, the transmitting positioning key slot (8) is processed outside the transmitting assembly plug-in (6), and the positioning key slot (8) assists the transmitting module (1) to be connected with the power module (2);

the central control module (3) receives the electric signals output by the acquisition module (4), the transmitting module (1), the power supply module (2) and the central control module (3) are installed and fixed in the protective shell (5) in a plug-in mode, the protective shell (5) is connected with the acquisition module (4), and power supply and communication are carried out through the embedded slip ring.

Preferably, the power module (2) mainly comprises a power assembly plug-in (10), a power positioning key slot (11), a power positioning key (12), a power supply socket (13), a battery mounting framework (14) and a lithium battery (15), and is used for supplying power to the acquisition and transmission circuit of the instrument; a battery mounting framework (14) is processed outside the power supply assembly plug-in (10), and lithium batteries (15) are annularly distributed on the battery mounting framework (14); power assembly plug-in components (10) outside processing power location keyway (11) and power location key (12), power location key (12) auxiliary emission module (1) is connected with power module (2), and power location keyway (11) are supplementary well accuse module (3) and are connected with power module (2), and power supply socket (13) are connected with the contact pin and are used for supplying power for instrument in the pit.

Preferably, shot blasting is adopted in the power supply assembly plug-in (10), the power supply assembly plug-in (10) and the battery mounting framework (14) are made of non-magnetic materials, and the lithium battery (15) is composed of high-temperature lithium batteries.

Preferably, the central control module (3) mainly comprises a central control assembly plug-in (16), a circuit installation groove (17), a conductive ring (18), an elastic conductive rod (19), a drill collar embedded female slip ring (20), a sliding cover (21), a central control positioning key (22), a signal conditioning circuit (23), a data processing circuit (24), a power amplification circuit (25) and a high-voltage driving circuit (26), the circuit installation groove (17) is processed outside the central control assembly plug-in (16), the central control module (3) receives an electric signal output by the acquisition module (4) and performs preprocessing through the signal conditioning circuit (23), the signal conditioning circuit (23) comprises a filtering amplification circuit (27) and a sampling holding circuit (28), the preprocessing of the signal conditioning circuit (23) mainly amplifies, filters and adjusts the acquired signal, and then sends the signal to the data processing circuit (24) through an A/D analog-to-digital conversion (32), the data processing circuit (24) mainly comprises a microprocessor (29) and a digital signal processor (30), the data processing circuit (24) completes resolving of collected data, effective data are obtained after demodulation and decoding, then the effective data are recoded and modulated and then output, the digital signal processor (30) controls a D/A digital-to-analog converter (31) to generate control signals, and the control signals pass through a power amplifying circuit (25) and a high-voltage driving circuit (26) to drive the transmitting transducer (7) to transmit sound wave signals outwards.

Preferably, the signal conditioning circuit (23), the data processing circuit (24), the power amplifying circuit (25) and the high-voltage driving circuit (26) are fixedly installed on the circuit installation groove (17) and are packaged by a sliding cover (21), the packaged circuit is connected with the elastic conducting rod (19) through the conducting ring (18), the conducting ring (18) is installed on the central control assembly plug-in component, the cross section of the conducting ring is in an arc shape, the elastic conducting rod (19) is in arc contact with the conducting ring (18), and the elastic conducting rod (19) is connected with the embedded female sliding ring (20), so that power supply and communication functions are achieved.

Preferably, shot blasting is adopted inside the central control assembly plug-in (16), and the central control assembly plug-in (16) and the circuit installation groove (17) are made of nonmagnetic materials.

Preferably, the acquisition module (4) mainly comprises an acquisition pup joint body (32), a circuit installation groove (33), a cover plate (34), a data preprocessing circuit (35), a drill collar embedded type male slip ring (36) and a sound wave receiving sensor (37) and is used for acquiring and preprocessing underground sound wave transmission signals, the circuit installation groove (33) is processed outside the acquisition pup joint body (32) and packaged through the cover plate (34), the sound wave receiving sensor (37) receives the sound wave signals, the data preprocessing circuit (35) mainly acquires and preprocesses the underground sound signals received by the sound wave receiving sensor and sends the acquired data to the central control module (3) for data processing, the data preprocessing circuit (35) mainly completes signal preliminary filtering and adjustment, related circuits are fixed in the circuit installation groove (33), related circuit wiring is connected with the embedded male slip ring (36) through a conducting wire, and the embedded male slip ring (36) is connected with the embedded female slip ring (20) after the instrument is assembled, so that power supply and communication functions are achieved.

Preferably, shot blasting is adopted in the collecting short section body (32), and the collecting short section body (32) and the cover plate (34) are made of nonmagnetic materials.

Compared with the prior art, the invention has the following beneficial effects:

the power module, the central control module and the transmitting module are arranged in the drill collar type device shell in a plug-in mode, and the female buckle end of the shell is connected with the acquisition module and is used for power supply and communication through the embedded slip ring; the power supply module supplies power to the underground instrument, provides direct current voltage of 10.5V, 14.5V and 18V, adopts a cylindrical giant magnetostrictive transmitting transducer, and has the driving voltage of 500V and the frequency of 600Hz-900 Hz. (ii) a The sound wave receiving sensor receives sound wave signals, the data preprocessing circuit amplifies, filters and adjusts the acquired sound wave signals, the data processing circuit resolves the acquired data to generate control signals, and the control signals drive the transmitting transducer to transmit the sound wave signals outwards through the power amplifying circuit and the high-voltage driving circuit; the invention can realize the expansion of the transmission distance of sound waves in the drill column, and the relay device has the capability of collecting, identifying and transmitting sound signals, thereby meeting the requirement of the underground information relay and forwarding function.

Drawings

FIG. 1 is a schematic view of the insert construction of the present invention;

FIG. 2 is a schematic view of the protective housing of the present invention;

FIG. 3 is a functional schematic of the circuit of the present invention;

FIG. 4 is a schematic diagram of a relay architecture of the present invention;

FIG. 5 is a schematic view of the acquisition module of the present invention;

in the upper diagram: the device comprises a transmitting module 1, a power supply module 2, a central control module 3, an acquisition module 4, a protective shell 5, a transmitting assembly plug-in 6, a transmitting transducer 7, a transmitting positioning key groove 8, a mounting groove 9, a power supply assembly plug-in 10, a power supply positioning key groove 11, a power supply positioning key 12, a power supply socket 13, a battery mounting framework 14, a lithium battery 15, a central control assembly plug-in 16, a circuit mounting groove 17, a conductive ring 18, an elastic conductive rod 19, a drill collar embedded female slip ring 20, a sliding cover 21, a central control positioning key 22, a signal conditioning circuit 23, a data processing circuit 24, a power amplifying circuit 25, a high-voltage driving circuit 26, a filtering amplifying circuit 27, a sampling holding circuit 28, a microprocessor 29, a digital signal processor 30, a D/A converter 31, an acquisition pup joint body 32, a digital-to-analog circuit mounting groove 33, a cover plate 34, a data preprocessing circuit 35, and an acoustic wave receiving sensor 37.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Embodiment 1, as shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, a collar-type downhole information acoustic transmission relay device according to the present invention includes a transmitting module 1, a power module 2, a central control module 3, an acquisition module 4, and a protective housing 5.

As shown in fig. 1, 3, 4 and 5, the transmitting module 1 mainly comprises a transmitting assembly plug 6, a transmitting transducer 7 and a transmitting positioning key slot 8, and mainly completes the acoustic transmission of downhole information. The launching assembly plug-in 6 is made of non-magnetic materials, shot blasting is adopted inside the launching assembly plug-in 6, and the problem of pitting corrosion of the instrument under the well condition containing corrosive substances is solved. The installation of the cylindrical broadband transmitting transducer 7 is realized by processing the installation groove 9 outside the transmitting assembly plug-in 6, the transmitting transducer 7 adopts a giant magnetostrictive transducer, the driving voltage of the transmitting transducer 7 is 500V, and the working frequency is 600Hz-900 Hz. The outside processing of transmission assembly plug-in 6 launches location keyway 8, and location keyway 8 assists emission module 1 to be connected with power module 2.

As shown in fig. 1 and 3, the power module 2 mainly comprises a power assembly plug 10, a power positioning key slot 11, a power positioning key 12, a power supply socket 13, a battery mounting framework 14 and a lithium battery 15, and mainly supplies power to a collecting and transmitting circuit of the instrument. The inside of the power assembly plug-in 10 is processed by shot blasting, the battery mounting framework 14 is processed outside, the power assembly plug-in 10 and the battery mounting framework 14 are processed and manufactured by nonmagnetic materials, the lithium battery 15 is formed by high-temperature lithium batteries, and the lithium batteries are annularly distributed on the battery mounting framework 14. Power assembly plug-in components 10 outside processing power location keyway 11 and power location key 12, power location key 12 is assisted transmission module 1 and is connected with power module 2, and power location keyway 11 is supplementary well accuse module 3 and is connected with power module 2, and power supply socket 13 is connected with the contact pin and is used for providing the power supply for instrument in the pit, provides direct current voltage and is 10.5V, 14.5V and 18V.

As shown in fig. 1 and 3, the central control module 3 mainly comprises a central control assembly plug 16, a circuit installation groove 17, a conductive ring 18, an elastic conductive rod 19, a drill collar embedded female slip ring 20, a sliding cover 21, a central control positioning key 22, a signal conditioning circuit 23, a data processing circuit 24, a power amplifying circuit 25 and a high voltage driving circuit 26, and mainly processes downhole measurement data and drives downhole information transmission. Shot blasting is adopted inside the central control assembly plug-in 16, the circuit installation groove 17 is machined outside the central control assembly plug-in 16, and the central control assembly plug-in 16 and the circuit installation groove 17 are machined and manufactured by adopting nonmagnetic materials. The central control module 3 receives the electrical signal output by the acquisition module 4, and performs preprocessing by the signal conditioning circuit 23, the signal conditioning circuit 23 is composed of a filtering amplification circuit 27 and a sampling holding circuit 28, the preprocessing of the signal conditioning circuit 23 mainly performs amplification, filtering and adjustment on the acquired signal, then the signals are sent to a data processing circuit 24 through A/D analog-to-digital conversion 32, the data processing circuit 24 mainly comprises a Microprocessor (MCU) 29 and a Digital Signal Processor (DSP) 30, the data processing circuit 24 completes the resolving of the collected data and obtains effective data after the demodulating and decoding, then re-encodes and modulates the valid data for output, the digital signal processor 30 controls the D/a digital-to-analog converter 31 to generate a control signal, and drives the transmitting transducer 7 to transmit sound wave signals outwards through a power amplifying circuit 25 and a high-voltage driving circuit 26. The circuit is fixed on the circuit mounting groove 17 and is packaged by the sliding cover 21, the packaged circuit is connected with the elastic conducting rod 19 through the conducting ring 18, the conducting ring 18 is mounted on the central control assembly plug-in, the cross section of the conducting ring 18 is in a circular arc shape, the elastic conducting rod 19 is in arc surface contact with the conducting ring 18, and the elastic conducting rod 19 is connected with the embedded female sliding ring 20 to achieve the power supply and communication functions.

As shown in fig. 1, 2, 4 and 5, the protection housing 5 is made of a non-magnetic material, the transmitting module 1, the power module 2 and the central control module 3 are installed and fixed in the drill collar type protection housing 5 in a plug-in mode, and the female buckle end of the protection housing 5 is connected with the acquisition module 4 and is used for power supply and communication through an embedded slip ring.

As shown in fig. 1, 4 and 5, the acquisition module 4 mainly comprises an acquisition nipple body 32, a circuit installation groove 33, a cover plate 34, a data preprocessing circuit 35, a collar embedded male slip ring 36 and a sound wave receiving sensor 37, and mainly completes acquisition and preprocessing of a downhole sound wave transmission signal. Gather nipple joint body 32 inside and adopt peening, outside processing circuit mounting groove 33 to encapsulate through apron 34, gather nipple joint body 32 and apron 34 and adopt the processing preparation of no magnetic material. The sound wave receiving sensor 37 receives sound wave signals, the data preprocessing circuit 35 mainly collects and preprocesses underground sound signals received by the sound wave receiving sensor, the collected data are sent into the central control module 3 to be processed, the data preprocessing circuit 35 mainly completes signal preliminary filtering and adjustment, related circuits are fixed in the circuit mounting groove 33, related circuit wiring is connected with the embedded male slip ring 36 through a lead, the embedded male slip ring 36 and the embedded female slip ring 20 are connected after instrument assembly is completed, and therefore power supply and communication functions are achieved.

Embodiment 2, as shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, a collar-type downhole information acoustic transmission relay device according to the present invention includes a transmitting module 1, a power module 2, a central control module 3, an acquisition module 4, and a protective housing 5.

The difference from the embodiment 1 is that: the power module 2 mainly comprises a power assembly plug-in 10, a power positioning key groove 11, a power positioning key 12, a power supply socket 13, a battery mounting framework 14 and a lithium battery 15, and mainly supplies power for a collecting and transmitting circuit of the instrument. Inside shot blasting that adopts of power assembly plug-in components 10, outside processing battery installation skeleton 14, power assembly plug-in components 10 and battery installation skeleton 14 adopt the processing preparation of no magnetism material, and lithium cell 15 adopts the high temperature lithium cell to constitute, and the concrete difference is: the lithium batteries are distributed on the battery mounting framework 14 in an arc-shaped structure. Power assembly plug-in components 10 outside processing power location keyway 11 and power location key 12, power location key 12 is assisted transmission module 1 and is connected with power module 2, and power location keyway 11 is supplementary well accuse module 3 and is connected with power module 2, and power supply socket 13 is connected with the contact pin and is used for providing the power supply for instrument in the pit, provides direct current voltage and is 10.5V, 14.5V and 18V.

Embodiment 3, as shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, a collar-type downhole information acoustic transmission relay device according to the present invention includes a transmitting module 1, a power module 2, a central control module 3, an acquisition module 4, and a protective housing 5.

The difference from the embodiment 1 is that: the power module 2 mainly comprises a power assembly plug-in 10, a power positioning key groove 11, a power positioning key 12, a power supply socket 13, a battery mounting framework 14 and a lithium battery 15, and mainly supplies power for a collecting and transmitting circuit of the instrument. Inside shot blasting that adopts of power assembly plug-in components 10, outside processing battery installation skeleton 14, power assembly plug-in components 10 and battery installation skeleton 14 adopt the processing preparation of no magnetism material, and lithium cell 15 adopts the high temperature lithium cell to constitute, and the concrete difference is: the lithium batteries are distributed on the battery mounting framework 14 in a square structure, and the functions can be realized. Power assembly plug-in components 10 outside processing power location keyway 11 and power location key 12, power location key 12 is assisted transmission module 1 and is connected with power module 2, and power location keyway 11 is supplementary well accuse module 3 and is connected with power module 2, and power supply socket 13 is connected with the contact pin and is used for providing the power supply for instrument in the pit, provides direct current voltage and is 10.5V, 14.5V and 18V.

The above description is only a few of the preferred embodiments of the present invention, and any person skilled in the art may modify the above-described embodiments or modify them into equivalent ones. Therefore, the technical solution according to the present invention is subject to corresponding simple modifications or equivalent changes, as far as the scope of the present invention is claimed.