Downhole magnetic distance measurement transmitting and receiving method and system, electronic equipment and storage medium

Abstract

The invention discloses an underground magnetic distance measurement transmitting and receiving method and system, electronic equipment and a storage medium. The underground magnetic distance measurement transmitting and receiving method comprises the steps that a plurality of transmitting electrodes arranged at different stratum depths in a rescue well are controlled to generate excitation currents in a time-sharing mode; the excitation current generated by the emission electrode is correspondingly received through a plurality of loop electrodes arranged on the ground; the measuring probe is used for collecting induction signals of a current loop formed by the emission electrode and the corresponding loop electrode after passing through the metal part in the accident well, and the orientation of the metal part in the accident well is determined by analyzing the characteristics of the induction signals. When the rescue well is excited at different underground stratum depths, the peak value and the position of the collected current on the metal part in the accident well change along with the excitation position, so that the azimuth information of the metal part in the accident well can be determined by analyzing the characteristics of the collected current. The device can adapt to excitation of different underground stratum depths, collected data are diversified, and the working mode can be adjusted in real time according to different stratum environments.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of underground resource drilling engineering, and particularly relates to a downhole magnetic ranging transmitting and receiving method and system, an electronic device and a storage medium. BACKGROUND

[0002] In the field of oil and gas exploration, drilling operation is a very complex and uncertain task. During drilling, serious accidents such as drill tool fracture, drill pipe sticking, well collapse, drill pipe falling, and even blowout may occur. Especially when drilling on an offshore or land platform, a blowout accident can cause huge losses of oil and gas resources, and cause fires, casualties and other catastrophic events. The main causes of blowout accidents involve geological, engineering and human factors, such as incomplete geological information, unscientific drilling plan, and imprecise construction operation, etc.

[0003] At present, the rescue well technology, as an effective means to deal with blowout accidents, realizes intersection between the wellbore of a new well (rescue well) and the wellbore of an accident well, so as to control the blowout fire and other emergency situations. In the implementation of the rescue well technology, accurate detection of the distance and direction between the rescue well and the accident well is the key technology.

[0004] The rescue well detection technology includes accurate measurement and positioning of the distance and direction. Through in-depth research on the theory and method of distance and direction, the influence of various factors on positioning is analyzed, aiming to quickly and effectively locate the accident well and minimize the impact of blowout accidents.

[0005] In the rescue well electromagnetic detection positioning technology, electromagnetic detection technology can be divided into passive detection and active detection. The main difference between them is whether to actively intervene in the measured object. Compared with passive detection, active detection has higher detection accuracy, longer detection range and better detection stability.

[0006] Compared with passive detection, the active detection method has significant advantages in the rescue well electromagnetic detection positioning technology. Active detection better controls the detection process by actively exciting current, making the detection result more accurate. At the same time, active detection has a longer detection range, can cover a wider stratum area, and improves the detection ability of the accident well. It has high stability and is not easily disturbed by the outside world, which helps to obtain reliable positioning results in complex geological environments. Well-ground current injection method, as a kind of active detection method, has shown more outstanding performance in the rescue well technology, providing strong support for timely rescue of blowout accidents.

[0007] The well-ground current injection method is characterized in that a transmitting electrode is arranged in a rescue well, and a loop electrode is arranged on the ground. When an excitation is applied to both ends of the electrode, most of the current converges on the casing of the accident well. Through the measurement probe installed in the rescue well, the signal containing the information of the accident well can be received and analyzed, so as to realize the positioning of the accident well.

[0008] The existing well-ground current injection method cannot guarantee accurate and efficient work because the current converging on the casing or drill pipe of the accident well and its response characteristics are variable when the rescue well is excited at different formation depths in the well. SUMMARY

[0009] The present application aims to solve the problems in the prior art and provides a downhole magnetic ranging transceiving method, system, electronic device and storage medium, which can flexibly adapt to excitation at different formation depths in the well, the collected data is more diversified, the working mode can be adjusted in real time according to different formation environments, the efficient working state is maintained, and the stability of target tracking is improved.

[0010] In order to achieve the above-mentioned purpose, the present application has the following technical solutions:

[0011] In a first aspect, a downhole magnetic ranging transceiving method is provided, comprising:

[0012] controlling a plurality of transmitting electrodes arranged at different formation depths in a rescue well to generate excitation current in time;

[0013] corresponding receiving the excitation current generated by the transmitting electrode through a plurality of loop electrodes arranged on the ground;

[0014] using a measurement probe to collect the induction signal of the current loop formed by the transmitting electrode and the corresponding loop electrode after passing through the internal metal part of the accident well, and determining the orientation of the internal metal part of the accident well by analyzing the characteristics of the induction signal.

[0015] As a preferred scheme, the plurality of transmitting electrodes arranged at different formation depths in the rescue well apply excitation current to the formation according to a predetermined time sequence.

[0016] As a preferred scheme, the plurality of loop electrodes arranged on the ground are matched with the plurality of transmitting electrodes arranged in the rescue well at different transceiving spacings.

[0017] As a preferred scheme, the induction signal collected by the measurement probe is processed and analyzed in real time, and the matching mode of the optimal transceiving spacing of the transmitting electrode and the loop electrode and the time sequence of the excitation current applied by the transmitting electrode to the formation are selected according to the characteristics of the induction signal.

[0018] As a preferred scheme, the internal metal part of the accident well is a casing or a drill pipe.

[0019] As a preferred solution, the transmitting electrodes and the loop electrodes are connected through a cable, and the multiple transmitting electrodes and the measuring probe are arranged at the rescue well through the same metal component.

[0020] As a preferred solution, the changes of the working environment are monitored in real time, and the working mode and the working parameters of the transmitting electrodes and the loop electrodes are adjusted according to the monitoring results.

[0021] In the second aspect, a downhole magnetic ranging transceiving system is provided, comprising:

[0022] The excitation current selection transmitting module is configured to control the multiple transmitting electrodes arranged at different stratum depths of the rescue well to generate excitation currents in time division manner.

[0023] The excitation current matching receiving module is configured to receive the excitation currents generated by the transmitting electrodes through the multiple loop electrodes arranged on the ground.

[0024] The induction signal acquisition and analysis module is configured to acquire the induction signals of the current loop formed by the transmitting electrodes and the corresponding loop electrodes after passing through the internal metal component of the accident well by using the measuring probe, and determine the orientation of the internal metal component of the accident well by analyzing the characteristics of the induction signals.

[0025] In the third aspect, an electronic device is provided, comprising:

[0026] The memory is configured to store at least one instruction, and the processor is configured to execute the instruction stored in the memory to implement the downhole magnetic ranging transceiving method.

[0027] In the fourth aspect, a computer readable storage medium is provided, which stores a computer program, and the computer program is executed by a processor to implement the downhole magnetic ranging transceiving method.

[0028] Compared with the prior art, the present application has at least the following beneficial effects:

[0029] The current is gathered on the internal metal part of the accident well by applying an excitation signal on the transmitting electrode, and the measuring probe is responsible for receiving and analyzing the induction signal containing the information of the accident well. The present application realizes accurate and efficient work under excitation at different depths by controlling multiple transmitting electrodes arranged at different formation depths in the rescue well to generate excitation current in time, matching the transmitting electrodes with multiple loop electrodes arranged on the ground, making different transmitting and receiving electrodes work in time, and the measuring probe collects in time. When the rescue well is excited at different formation depths, the peak value and position of the gathered current on the internal metal part of the accident well will change with the excitation position, and the orientation information of the internal metal part of the accident well can be determined by analyzing the characteristics of the gathered current. The method of the present application can ensure good detection effect under excitation at different depths in the well, and the induction signal of the current loop collected after passing through the internal metal part of the accident well is more diversified, providing more abundant data for subsequent target inversion. The method of the present application can optimize the working strategy in real time, adjust the working mode in real time according to different formation environments, and then keep the efficient working state. The method of the present application also provides conditions for the intelligent self-learning working mode, which can intelligently adjust the time-sharing work of the transmitting and receiving electrodes and the collection of the measuring probe through historical data and real-time feedback, improve the adaptability and stability of target tracking of the downhole magnetic ranging and transmitting method, and improve the reliability and application prospect of the rescue well technology in oil and gas exploitation. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and other related drawings can be obtained by those skilled in the art without creating labor.

[0031] Figure 1 The system working principle schematic diagram of the downhole magnetic ranging and transmitting method of the embodiment of the present application;

[0032] Figure 2 The single transmitting electrode structure schematic diagram of the embodiment of the present application;

[0033] Figure 3 The loop electrode structure schematic diagram of the embodiment of the present application;

[0034] Figure 4 The measuring probe structure schematic diagram of the embodiment of the present application;

[0035] Figure 5 The multiple transmitting electrodes and measuring probe structure schematic diagram of the embodiment of the present application at different formation depths in the rescue well;

[0036] Figure 6 Structure diagram of the casing of the accident well in the embodiment of the present application;

[0037] Figure 7 Structure diagram of the casing of the rescue well in the embodiment of the present application;

[0038] Figure 8 Accumulated current density curve in the accident well when different downhole positions are excited in the embodiment of the present application;

[0039] Figure 9 Accumulated current density curve in the accident well when different position loop electrodes are received in the embodiment of the present application. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, other embodiments can also be obtained by those skilled in the art without creative labor.

[0041] The well-ground current injection method is a technology applied in specific geological exploration and engineering fields, mainly used for detecting and positioning underground structures such as accident wells, aquifers, etc. The basic principle of the well-ground current injection method is to provide current to the positive and negative electrodes through power supply equipment, wherein the positive electrode is usually placed in the rescue well or the detection well, and the negative electrode is placed at a relatively far position on the ground. When the current is injected, it will diffuse outward in a certain form (such as a spherical form), and interact with the underground medium (such as rock, soil, water body, etc.) during the diffusion process. These interactions will cause the current to form a specific magnetic field distribution underground, and by detecting these magnetic field distributions, information about the underground structure can be obtained. In the rescue well operation, the well-ground current injection method is used to locate the position of the accident well. When the accident well cannot be directly accessed due to blowout or other reasons, the well-ground current injection method can indirectly locate the accident well by injecting current in the rescue well and detecting the magnetic field distribution on the ground. This method overcomes the difficulty of traditional methods that cannot directly access the accident well, and improves the rescue efficiency. The well-ground current injection method is an effective underground structure detection and positioning technology, and has a wide application prospect. During the detection process, it may be affected by factors such as the non-uniformity of the underground medium and electromagnetic interference. In actual application, appropriate electrode arrangement, current injection parameters and magnetic field detection methods need to be selected according to specific geological conditions and detection requirements to obtain the best detection effect.

[0042] Please refer to Figure 1 , in order to cope with the variability of the accumulated current on the casing or drill pipe of the accident well and its response characteristics when the rescue well is excited at different depths of the downhole formation, the downhole magnetic ranging transceiving method in the embodiment of the present application is proposed, which comprises:

[0043] S1, control multiple transmitting electrodes 1 arranged at different stratum depths of the rescue well to generate excitation current in time;

[0044] S2, multiple loop electrodes 2 arranged on the ground correspondingly receive the excitation current generated by the transmitting electrodes 1;

[0045] S3, the measuring probe 3 collects the induction signal of the current loop formed by the transmitting electrodes 1 and the corresponding loop electrodes 2 after passing through the internal metal components of the accident well, and determines the orientation of the internal metal components of the accident well by analyzing the characteristics of the induction signal.

[0046] In a possible implementation, the transmitting electrodes 1 and the loop electrodes 2 are connected through a cable, and a power supply is arranged on the cable for excitation current and detection signal collection and transmission. The multiple transmitting electrodes 1 at different stratum depths of the rescue well and the measuring probe 3 are connected to the host computer, and the host computer is connected to each loop electrode 2 through the controller, as shown in Figure 3 .

[0047] Further, under the coordinated control of the host computer and the controller, the multiple transmitting electrodes 1 arranged at different stratum depths of the rescue well apply excitation current to the stratum according to a predetermined time sequence. The multiple loop electrodes 2 arranged on the ground are matched with the multiple transmitting electrodes 1 arranged in the rescue well at different transmitting-receiving spacings, so as to realize multi-spacing time-sharing transmitting-receiving detection.

[0048] In a possible implementation, the host computer performs real-time processing and analysis on the induction signal collected by the measuring probe 3, selects the matching mode of the optimal transmitting-receiving spacing of the transmitting electrodes 1 and the loop electrodes 2 according to the characteristics of the induction signal, adjusts the working mode in real time according to different stratum environments, and maintains an efficient working state.

[0049] As shown in Figure 6 , the internal metal components of the accident well are casing or drill pipe.

[0050] As shown in Figure 2 and Figure 4 , Figure 5 and Figure 7 , the multiple transmitting electrodes 1 and the measuring probe 3 of the embodiment of the application are arranged in the rescue well through the same metal component. Similarly, the metal component can be casing or drill pipe. Further, the spacing between the multiple transmitting electrodes 1 can be adjusted, and the measuring probe 3 is arranged below all the transmitting electrodes 1 and the spacing is adjustable.

[0051] In a possible implementation, the working mode and working parameters of the transmitting electrodes 1 and the loop electrodes 2 are adjusted according to the monitoring results by real-time dynamic monitoring of the changes in the working environment.

[0052] During rescue well operations, when current excitation is applied at different formation depths downhole, the current collected on the casing or drill pipe of the faulted well and its response characteristics exhibit significant variability. This variability is mainly influenced by factors such as formation resistivity, the depth of the emitting electrode, the location of the loop electrode, and the physical properties of the casing or drill pipe of the faulted well.

[0053] Formation resistivity is one of the key factors determining the characteristics of electric current propagation underground. The higher the resistivity, the greater the resistance encountered by the current propagation, thus affecting the propagation distance and intensity. In rescue well operations, when formation resistivity changes, the magnitude and distribution characteristics of the current collected on the casing or drill pipe of the faulty well will also change.

[0054] The depth of the transmitting electrode directly affects the propagation path and intensity of the current underground. When the transmitting electrode is located at different formation depths, the current will propagate along different paths to the casing or drill pipe of the faulty well, causing changes in the magnitude and peak location of the collected current. For example, at one depth, the current may more easily propagate along low-resistivity channels in the formation, resulting in a larger collected current on the casing of the faulty well. At another depth, the current may be hindered by high-resistivity formations, leading to a decrease in the collected current.

[0055] The location of the loop electrode is also a crucial factor affecting current propagation and collection. The closer the loop electrode is to the wellhead of the accident well, the greater the current collected on the drill pipe will be due to the shortened current path. However, in actual rescue operations, the area near the wellhead may be dangerous or inaccessible; therefore, the selection of the loop electrode location must comprehensively consider both safety and detection effectiveness. Furthermore, the physical characteristics of the casing or drill pipe in the accident well (such as material, diameter, and length) also affect current collection and response characteristics. For example, casing or drill pipe with good conductivity is more likely to collect current, thus generating a stronger magnetic field response. In addition, the length and diameter of the casing or drill pipe also affect the current distribution and propagation characteristics within it.

[0056] Considering the above factors, during the implementation of electromagnetic detection and positioning technology for rescue wells, the current collected on the casing or drill pipe of the accident well and its response characteristics will exhibit significant variability when the rescue well is excited by current at different formation depths. This variability is reflected not only in the magnitude and distribution of the current but also in the strength and distribution of the magnetic field. Therefore, in actual rescue operations, it is necessary to adjust the current excitation parameters and detection scheme according to the specific circumstances to obtain the best detection results.

[0057] Compared with the prior art, the underground magnetic ranging transceiving method and the implementation system structure thereof can improve the detection distance, detection accuracy and stability of target tracking of the instrument, and the flexibility, diversity, real-time performance and autonomous learning characteristics are combined to provide a more comprehensive and efficient solution for the rescue well technology. The technical scheme provided by the present application will actively promote the development of the rescue well technology and improve the reliability and application prospect of the technology in oil and gas exploitation.

[0058] The underground magnetic ranging transceiving method of the embodiment of the present application at least includes the following advantages:

[0059] 1. Improve the detection accuracy and positioning accuracy. The multi-distance time-sharing transceiving system significantly improves the accuracy of rescue well electromagnetic detection positioning through precise timing control and adaptive working mode. The implementation system can adaptively adjust the working strategy under different depths and geological environments, so that the detection signal more accurately reflects the position and characteristics of the accident well.

[0060] 2. Expand the detection range. The multi-distance time-sharing transceiving mode makes the detection range more extensive. The excitation at different depths can be quickly captured by the system, thereby realizing coverage of a wider area and improving the flexibility and comprehensiveness of the detection system.

[0061] 3. Adapt to complex geological conditions. The adaptive working mode of the multi-distance time-sharing transceiving enables it to flexibly respond to complex and variable stratum conditions and dynamically adjust parameters to maintain the best working state. In extreme environments such as high temperature, high pressure and complex lithology, the system can still work reliably, improving the applicability of the rescue well technology in extreme conditions.

[0062] 4. More abundant data collection. The use of time-sharing transceiving strategy can obtain more diverse and detailed data. This not only provides more information support for real-time detection, but also provides a more abundant data basis for subsequent target analysis and inversion.

[0063] 5. Intelligent efficiency. The underground magnetic ranging transceiving method of the present application has certain autonomous learning ability and can intelligently adjust according to historical data and real-time feedback, improving the adaptability and intelligent level of the system. This intelligent design enables the system to more efficiently adapt to different working environments, further improving the working efficiency of the rescue well technology.

[0064] Another embodiment of the present application also provides an underground magnetic ranging transceiving system, comprising:

[0065] The excitation current selection and transmission module is used to control the multi-transmission electrode 1 arranged at different stratum depths of the rescue well to generate excitation current in time-sharing manner;

[0066] The excitation current matching receiving module is used for receiving the excitation current generated by the transmitting electrode 1 through a plurality of loop electrodes 2 arranged on the ground.

[0067] The induction signal acquisition and analysis module is used for collecting the induction signal of the current loop formed by the transmitting electrode 1 and the corresponding loop electrode 2 after passing through the internal metal part of the accident well by using the measuring probe 3, and determining the orientation of the internal metal part of the accident well by analyzing the characteristics of the induction signal.

[0068] In a possible implementation, the excitation current selection transmitting module makes the plurality of transmitting electrodes 1 arranged at different stratum depths of the rescue well apply excitation current to the stratum according to a predetermined timing sequence.

[0069] In a possible implementation, the excitation current matching receiving module matches the plurality of loop electrodes 2 arranged on the ground with the plurality of transmitting electrodes 1 arranged in the rescue well according to different transmitting-receiving spacings.

[0070] In a possible implementation, the host computer performs real-time processing and analysis on the induction signal collected by the measuring probe 3, selects the matching mode of the transmitting electrode 1 and the loop electrode 2 according to the characteristics of the induction signal, and adjusts the working mode and the working parameters of the transmitting electrode 1 and the loop electrode 2 according to the monitoring result, so that the system can maintain the best working state.

[0071] In the implementation process, the downhole magnetic ranging transmitting-receiving system of the embodiment of the present application first selects the optimal multi-spacing time-sharing working mode according to the geological conditions and the depth of the rescue well and other factors. The transmitting electrode 1 applies excitation to the stratum according to a predetermined timing sequence, and the loop electrode 2 is used to form a loop to make most of the current converge on the casing of the accident well.

[0072] The system of the embodiment of the present application precisely controls the timing of transmission and reception, ensures that the induction signal can be accurately captured when the excitation is applied at different depths, and realizes data acquisition under different transmitting-receiving combinations by using the time-sharing transmitting-receiving strategy.

[0073] The collected data are processed and analyzed in real time by the intelligent algorithm built in the system of the embodiment of the present application. The host computer automatically selects the optimal transmitting-receiving spacing and timing sequence according to the characteristics of the induction signal, and optimizes the detection result.

[0074] The system of the embodiment of the present application can monitor the change of the working environment in real time, and dynamically adjust the working mode and the working parameters of the transmitting electrode 1 and the loop electrode 2, so that the system can maintain a high-efficiency working state under complex geological conditions.

[0075] The downhole magnetic ranging transceiving system of the embodiment of the present application has been successfully applied to a rescue well positioning task, and accurately captures the position information of an accident well. Through multiple field tests, the downhole magnetic ranging transceiving method and system of the embodiment of the present application performs well in different strata and depths, and provides a reliable solution for the practical application of rescue well electromagnetic detection technology.

[0076] The embodiment of the present application also provides an electronic device, which comprises a memory storing at least one instruction, and a processor executing the instruction stored in the memory to implement the downhole magnetic ranging transceiving method.

[0077] The embodiment of the present application also provides a computer readable storage medium storing a computer program, and the computer program is executed by a processor to implement the downhole magnetic ranging transceiving method.

[0078] For example, the instruction stored in the memory can be divided into one or more modules / units, which are stored in a computer readable storage medium and executed by the processor to complete the downhole magnetic ranging transceiving method of the embodiment of the present application. The one or more modules / units can be a series of computer readable instruction segments capable of completing a specific function, which are used to describe the execution process of the computer program in the server.

[0079] The electronic device can be a smart phone, a notebook, a palm computer, a cloud server and other computing devices. The electronic device can include, but is not limited to, a processor and a memory. Those skilled in the art can understand that the electronic device can further include more or less components, or combine certain components, or different components, for example, the electronic device can further include an input / output device, a network access device, a bus, etc.

[0080] The processor can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0081] The memory can be an internal storage unit of the server, such as a hard disk or a memory of the server. The memory can also be an external storage device of the server, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. Further, the memory can also include both the internal storage unit and the external storage device of the server. The memory is used to store the computer readable instructions and other programs and data required by the server. The memory can also be used to temporarily store data that has been output or will be output.

[0082] It should be noted that the information interaction and execution process between the above module units are based on the same concept as the method embodiments, and the specific functions and technical effects brought about can be referred to the method embodiments part, which will not be repeated here.

[0083] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the above division of functional units and modules is taken as an example for illustration, and in actual application, the above functions can be completed by different functional units and modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit or module in the embodiment can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit. In addition, the specific name of each functional unit or module is only for convenient distinction, and does not limit the protection scope of the present application. The specific working process of the unit or module in the system can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0084] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, all or part of the processes in the above-mentioned embodiment methods can be completed by a computer program instructing related hardware, and the computer program can be stored in a computer readable storage medium. When the computer program is executed by a processor, the steps of the above-mentioned various method embodiments can be implemented. The computer program includes computer program code, which can be in the form of source code, object code, executable files or some intermediate forms. The computer readable medium at least includes any entity or device capable of carrying the computer program code to the photographing device / terminal equipment, recording medium, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal and software distribution medium. For example, U disk, mobile hard disk, magnetic disk or optical disk, etc.

[0085] In the above embodiments, the description of each embodiment has its own focus, and the parts not described or recorded in a certain embodiment can be referred to the relevant description of other embodiments.

[0086] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A downhole magnetic ranging transceiver method, characterized in that, include: Multiple transmitting electrodes (1) arranged at different strata depths in the rescue well are controlled to generate excitation current in a time-sharing manner; The excitation current generated by the transmitting electrode (1) is received by multiple loop electrodes (2) set on the ground. The measuring probe (3) is used to collect the induced signal of the current loop formed by the transmitting electrode (1) and the corresponding loop electrode (2) after passing through the metal parts inside the accident well, and the orientation of the metal parts inside the accident well is determined by analyzing the characteristics of the induced signal.

2. The downhole magnetic ranging transceiver method according to claim 1, characterized in that, The multiple transmitting electrodes (1) arranged at different formation depths in the rescue well apply excitation current to the formation according to a predetermined timing sequence.

3. The downhole magnetic ranging transceiver method according to claim 2, characterized in that, The multiple loop electrodes (2) set on the ground and the multiple transmitting electrodes (1) arranged in the rescue well are matched according to different transmit and receive intervals.

4. The downhole magnetic ranging transceiver method according to claim 3, characterized in that, The sensing signals collected by the measuring probe (3) are processed and analyzed in real time. Based on the characteristics of the sensing signals, the optimal transmitting and receiving distance between the transmitting electrode (1) and the loop electrode (2) is selected, as well as the timing of the excitation current applied by the transmitting electrode (1) to the formation is determined.

5. The downhole magnetic ranging transceiver method according to claim 1, characterized in that, The metal components inside the accident well are casing or drill pipe.

6. The downhole magnetic ranging transceiver method according to claim 1, characterized in that, The transmitting electrode (1) and the loop electrode (2) are connected by a cable, and the plurality of transmitting electrodes (1) and the measuring probe (3) are installed in the rescue well through the same metal component.

7. The downhole magnetic ranging transceiver method according to claim 1, characterized in that, The working environment changes are monitored in real time, and the working mode and working parameters of the transmitting electrode (1) and the loop electrode (2) are adjusted according to the monitoring results.

8. A downhole magnetic ranging transceiver system, characterized in that, include: The excitation current selection transmitter module is used to control multiple transmitter electrodes (1) arranged at different formation depths in the rescue well to generate excitation current in a time-sharing manner; An excitation current matching receiving module is used to receive the excitation current generated by the transmitting electrode (1) through multiple loop electrodes (2) set on the ground. The induction signal acquisition and analysis module is used to acquire the induction signal of the current loop formed by the transmitting electrode (1) and the corresponding loop electrode (2) after passing through the metal parts inside the accident well using the measurement probe (3), and to determine the orientation of the metal parts inside the accident well by analyzing the characteristics of the induction signal.

9. An electronic device, characterized in that, include: Memory, storing at least one instruction; and The processor executes the instructions stored in the memory to implement the downhole magnetic ranging transceiver method as described in any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the downhole magnetic ranging transceiver method as described in any one of claims 1 to 7.

Images