Method and apparatus for adjusting trajectory of rescue well

Abstract

The present application relates to the technical field of well drilling. Provided are a method and apparatus for adjusting a trajectory of a rescue well. The method comprises: collecting angle parameters of a rescue well at a preset well depth, and performing calculation on the basis of the angle parameters, so as to obtain spatial coordinate data of the rescue well at the preset well depth; collecting the relative position between the rescue well and a current well on the basis of the spatial coordinate data, calibrating a trajectory of a target well to a rescue well reference by means of the relative position, and calculating an angle difference between the rescue well and the target well; and adjusting a trajectory of the rescue well on the basis of the angle difference.

Description

Rescue well trajectory adjustment method and device Technical Field

[0001] The present application relates to the field of drilling technology, and in particular to a method and device for adjusting the trajectory of a rescue well. Background Art

[0002] As production demands such as rescue of uncontrolled high-pressure blowout wells, plugging of complex old wells in gas storage facilities, scrapping of casing and abandoned wells in old oil fields, and environmental well management gradually emerge, the technology has been iteratively upgraded from active magnetic guidance drilling technology to passive magnetic guidance drilling technology.

[0003] At present, there are few studies on the detection of relative positions between wells. The WELLspot guidance tool is generally used to achieve precise connectivity between wells, but its core technology is confidential. In the existing technology, CN202210600439 corrects the trajectory through coincidence points, triangulation navigation, and three-dimensional to two-dimensional conversion, and CN202111181808 corrects the trajectory through wellbore trajectory inversion. However, the correction results of the two schemes are delayed and the relative errors between different instruments are not fully considered. In particular, there is still a risk of failure during the actual operation of directional wells or horizontal wells. The conventional measurement method, that is, the separate measurement method of magnetic guidance and gyroscope, although it locates the target under the same depth conditions, prolongs the overall measurement time, increases the operation cost, and there are errors in the depth positioning of each measurement, which increases the cumulative error of the positioning target.

[0004] Summary of the Invention

[0005] The purpose of this application is to provide a rescue well trajectory adjustment method and device, which can realize accurate downhole magnetic guidance measurement and measurement while drilling, and improve the efficiency of the final rescue well connection / re-entry.

[0006] To achieve the above-mentioned purpose, the rescue well trajectory adjustment method provided in the present application specifically includes: collecting the angle parameters of the rescue well at a preset well depth, and calculating the spatial coordinate data of the rescue well at the preset well depth based on the angle parameters; collecting the relative position of the rescue well and the current well based on the spatial coordinate data, calibrating the target well trajectory to the rescue well benchmark through the relative position, and calculating the angular difference between the rescue well and the target well; and adjusting the rescue well trajectory based on the angular difference.

[0007] In the above-mentioned rescue well trajectory adjustment method, optionally, collecting the angle parameters of the rescue well at a preset well depth includes: collecting well inclination and azimuth data of different measuring points of the rescue well at the preset well depth through a gyroscopic measuring device; and obtaining angle parameters based on the well inclination and azimuth data.

[0008] In the above-mentioned rescue well trajectory adjustment method, optionally, obtaining the spatial coordinate data of the rescue well at a preset well depth according to the angle parameters includes: obtaining the spatial coordinates of different measuring points by recursive calculation according to the well inclination and azimuth data; and obtaining the spatial coordinate data of the rescue well at a preset well depth according to the spatial coordinates.

[0009] In the above rescue well trajectory adjustment method, optionally, collecting the relative position of the rescue well and the current well according to the spatial coordinate data includes: collecting the relative position of the rescue well and the current well according to the spatial coordinate data by a magnetic guidance measurement device.

[0010] In the above-mentioned rescue well trajectory adjustment method, optionally, calibrating the target well trajectory to the rescue well benchmark through the relative position also includes: comparing the well inclination angle of the rescue well with a preset threshold, and obtaining a preset calibration strategy based on the comparison result; and calibrating the target well trajectory to the rescue well benchmark through the relative position according to the calibration strategy.

[0011] In the above-mentioned rescue well trajectory adjustment method, optionally, calibrating the target well trajectory to the rescue well benchmark through the relative position according to the calibration strategy includes: when the well inclination angle of the rescue well is less than a preset threshold, calculating the horizontal distance between the rescue well and the target well at the same vertical depth; obtaining the analysis coordinate data of the target well at the same vertical depth according to the horizontal distance calculation, and obtaining the original coordinate data at the corresponding vertical depth according to the historical inclination data of the target well; and calibrating the target well trajectory to the rescue well benchmark by translating the target well head so that the original coordinates and the analysis coordinate data coincide.

[0012] In the above-mentioned rescue well trajectory adjustment method, optionally, calibrating the target well trajectory to the rescue well benchmark through the relative position according to the calibration strategy includes: when the well inclination angle of the rescue well is greater than a preset threshold, calculating the vertical depth of the target well scanned by the rescue well at the preset well depth, and the projection data of the closest distance between the rescue well and the target well in the horizontal plane; obtaining the analytical coordinate data of the target well at the vertical depth of the target well according to the projection data, and obtaining the original coordinate data at the corresponding vertical depth according to the historical inclination data of the target well; calibrating the target well trajectory to the rescue well benchmark by translating the wellhead of the target well to make the original coordinates coincide with the analytical coordinate data.

[0013] In the above-mentioned rescue well trajectory adjustment method, optionally, calculating the angular difference between the rescue well and the target well includes: converting the relative position into a Cartesian coordinate system; and obtaining the angular difference in well inclination and azimuth between the rescue well and the target well by reverse calculation based on the Cartesian coordinate system.

[0014] The present application also provides a rescue well trajectory adjustment device, which includes: a data acquisition module, a calculation module and an adjustment module; the data acquisition module is used to collect angle parameters of the rescue well at a preset well depth, and calculate the spatial coordinate data of the rescue well at the preset well depth based on the angle parameters; the calculation module is used to collect the relative position of the rescue well and the current well based on the spatial coordinate data, calibrate the target well trajectory to the rescue well benchmark through the relative position, and calculate the angular difference between the rescue well and the target well; the adjustment module is used to adjust the rescue well trajectory based on the angular difference.

[0015] The present application also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned method when executing the computer program.

[0016] The present application also provides a computer-readable storage medium, which stores a computer program for executing the above method.

[0017] The present application also provides a computer program product, comprising a computer program / instruction, which implements the steps of the above method when executed by a processor.

[0018] The beneficial technical effects of the present application are: it can eliminate the relative errors between different instruments, improve the accuracy of trajectory adjustment, and thus improve the efficiency of the final rescue well connection / re-entry; it changes the measurement method of gyro measurement and magnetic guidance measurement separately, and realizes one-trip measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0020] FIG1A is a schematic flow chart of a rescue well trajectory adjustment method provided in one embodiment of the present application;

[0021] FIG1B is a schematic diagram of a practical application process of a rescue well trajectory adjustment method provided by an embodiment of the present application;

[0022] FIG2 is a schematic diagram of a process for obtaining spatial coordinate data according to an embodiment of the present application;

[0023] 3A to 3C are schematic diagrams of a calibration process according to an embodiment of the present application;

[0024] FIG4 is a schematic diagram of an angular difference acquisition process according to an embodiment of the present application;

[0025] FIG5 is a schematic structural diagram of an integrated measurement device provided in one embodiment of the present application;

[0026] FIG6 is a schematic structural diagram of a reducer mechanism provided in one embodiment of the present application;

[0027] FIG7 is a schematic structural diagram of a gyro measurement module provided in one embodiment of the present application;

[0028] FIG8 is a schematic structural diagram of a transition joint mechanism provided in one embodiment of the present application;

[0029] FIG9 is a schematic structural diagram of a magnetic guidance measurement module provided in one embodiment of the present application;

[0030] FIG10 is a schematic structural diagram of an inverter excitation module provided in one embodiment of the present application;

[0031] FIG11 is a schematic structural diagram of a measurement while drilling storage and transmission module provided in one embodiment of the present application;

[0032] FIG12 is a schematic structural diagram of a measurement while drilling storage and transmission module provided in one embodiment of the present application;

[0033] FIG13 is a schematic structural diagram of an electronic device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0034] The following will describe in detail the implementation methods of this application in conjunction with the accompanying drawings and examples, so that the application can fully understand how technical means are used to solve technical problems and achieve technical effects, and implement them accordingly. It should be noted that as long as there is no conflict, the various embodiments and the various features in each embodiment of this application can be combined with each other, and the resulting technical solutions are all within the scope of protection of this application.

[0035] Additionally, the steps shown in the flowcharts of the accompanying drawings may be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown.

[0036] Referring to FIG. 1A , the rescue well trajectory adjustment method provided in this application specifically includes:

[0037] S101 collects angle parameters of the rescue well at a preset depth, and calculates spatial coordinate data of the rescue well at the preset depth based on the angle parameters;

[0038] S102 collects the relative position of the rescue well and the current well according to the spatial coordinate data, calibrates the target well trajectory to the rescue well reference by the relative position, and calculates the angular difference between the rescue well and the target well;

[0039] S103 adjusts the rescue well trajectory according to the angular difference.

[0040] Specifically, the above-mentioned rescue well trajectory adjustment method can use gyroscopic measurement equipment to collect well inclination and azimuth data at different measurement points at a preset well depth; obtain angle parameters based on the well inclination and azimuth data; and use magnetic guidance measurement equipment to collect the relative position of the rescue well and the current well based on the spatial coordinate data. In actual operation, the adjustment process can be referred to as shown in Figure 1B and is as follows:

[0041] Step S1: measuring the inclination angle and azimuth of the rescue well at a preset well depth using a gyroscopic measuring instrument;

[0042] Step S2: recursively calculate and obtain the spatial coordinates of the rescue well at the preset well depth;

[0043] Step S3: measuring the relative position of the rescue well and the old well at the preset well depth based on the magnetic guidance measurement system;

[0044] Step S4: calibrating the target well trajectory to the rescue well benchmark;

[0045] Step S5: back-calculating to obtain the angular difference in inclination and azimuth between the rescue well and the target well in the stable section of the trajectory;

[0046] Step S6: providing a predicted value of trajectory adjustment according to the calibrated well inclination and azimuth.

[0047] The specific implementation of each step will be described in detail in the subsequent embodiments and will not be described in detail here.

[0048] In step S1, the inclination angle α of the rescue well at the preset well depth is measured mainly based on the gyroscopic measuring instrument. n and azimuth

[0049] Thereafter, step S2 is executed to recursively calculate the spatial coordinates of the rescue well at the preset depth. Specifically, referring to FIG2 , in one embodiment of the present application, the spatial coordinate data of the rescue well at the preset depth is calculated based on the angle parameter, including:

[0050] S201 obtains the spatial coordinates of different measuring points by recursive calculation based on the well inclination and azimuth data;

[0051] S202 obtains spatial coordinate data of a rescue well at a preset depth according to the spatial coordinates.

[0052] In actual work, the inclination angle α and azimuth of the rescue well at different depths l were measured based on the inclinometer. For sufficiently small intervals, the lth i The spatial coordinates of the lth i-1 The spatial coordinates are recursively integrated, and the formula is:

[0053] By recursively going to the wellhead, we can get the spatial coordinates (x, y, z) of all the measuring points of the rescue well, and thus get the spatial coordinates of the rescue well at the preset well depth as (x n ,y n ,z n ).

[0054] Then, step S3 is performed to measure the relative position of the rescue well and the old well at the preset well depth based on the magnetic guidance measurement system, including the closest distance d n 、High side orientation θ n and north direction φ n .

[0055] Then, step S4 is executed to calibrate the target well trajectory to the rescue well benchmark. In particular, the calibration method varies depending on the well inclination angle. For details, please refer to FIG. 3A . In one embodiment of the present application, calibrating the target well trajectory to the rescue well benchmark using the relative position further includes:

[0056] S301 compares the well inclination angle of the rescue well with a preset threshold, and obtains a preset calibration strategy according to the comparison result;

[0057] S302 calibrates the target well trajectory to the rescue well benchmark through the relative position according to the calibration strategy.

[0058] Further, referring to FIG. 3B , in one embodiment of the present application, calibrating the target well trajectory to the rescue well reference through the relative position according to the calibration strategy includes:

[0059] S303: When the well inclination angle of the rescue well is less than a preset threshold, calculate the horizontal distance between the rescue well and the target well at the same vertical depth;

[0060] S304: obtaining analytical coordinate data of the target well at the same vertical depth based on the horizontal distance calculation, and obtaining original coordinate data at the corresponding vertical depth based on the historical inclination survey data of the target well;

[0061] S305: The original coordinates are aligned with the analysis coordinate data by translating the wellhead of the target well, so that the trajectory of the target well is calibrated to the rescue well benchmark.

[0062] Referring again to FIG. 3C , in another embodiment of the present application, calibrating the target well trajectory to the rescue well reference using the relative position according to the calibration strategy includes:

[0063] S306: When the well inclination angle of the rescue well is greater than a preset threshold, calculating the vertical depth of the target well scanned by the rescue well at the preset well depth, and the projection data of the closest distance between the rescue well and the target well on the horizontal plane;

[0064] S307: Calculate and obtain analytical coordinate data of the target well at the vertical depth of the target well based on the projection data, and calculate and obtain original coordinate data at the corresponding vertical depth based on the historical inclination survey data of the target well;

[0065] S308: The original coordinates are aligned with the analysis coordinate data by translating the wellhead of the target well, so that the trajectory of the target well is calibrated to the rescue well benchmark.

[0066] In actual work, when the rescue well inclination angle α n When the angle is less than 10°, the calibration process is as follows:

[0067] Calculate the horizontal distance D between the rescue well and the target well at the same vertical depth n , the formula is:

[0068] Calculate the target well at the same vertical depth z n The coordinates below (X n ,Y n ,Z n ), the formula is:

[0069] According to the historical inclination survey data of the target well, the original coordinates (X′ n ,Y′ n ,Z′ n ) 。

[0070] Then translate the wellhead so that the original coordinates (X′) obtained from the historical inclination data of the target well are n ,Y′ n ,Z′ n ) and the measured coordinates (X n ,Y n ,Z n )coincide.

[0071] When the rescue well inclination angle α n When the angle is greater than 10°, the calibration process is as follows:

[0072] Calculate the vertical depth Z of the target well scanned under the preset well depth of the rescue well n , the formula is:

[0073] Calculate the shortest distance d between the rescue well and the target well n Projection on the horizontal plane The formula is:

[0074] Calculate the vertical depth Z of the target well n The coordinates below (X n ,Y n ,Z n ), the formula is:

[0075] According to the historical inclination survey data of the target well, the original coordinates (X′ n ,Y′ n ,Z′ n ).

[0076] Then translate the wellhead so that the original coordinates (X′) obtained from the historical inclination data of the target well are n ,Y′ n ,Z′ n ) and the measured coordinates (X n ,Y n ,Z n )coincide.

[0077] This can eliminate the cumulative errors between instruments.

[0078] After the above steps are completed, step S5 can be executed to reversely calculate the angular difference between the well inclination and azimuth of the rescue well and the target well in the stable section of the trajectory. For details, please refer to FIG4 . Calculating the angular difference between the rescue well and the target well includes:

[0079] S401 converts the relative position into a Cartesian coordinate system;

[0080] S402: Obtain the angular difference between the rescue well and the target well in the well inclination and azimuth by reverse calculation based on the Cartesian coordinate system.

[0081] In actual work, the implementation steps are as follows:

[0082] The magnetic guidance measurement system is obtained i The relative position relationship between the rescue well and the target well is converted to the Cartesian coordinate system, and the formula is:

[0083] Similarly, for the trajectory stable section (well deviation α0), j The relative position relationship between the rescue well and the target well at d is converted into the Cartesian coordinate system to obtain j,x and d j,y .

[0084] The inclination angle difference Δα and The formula is:

[0085] The inclination and azimuth of the target well can then be calibrated to the same benchmark as the rescue well, eliminating the relative error between instruments.

[0086] Finally, step S6 can be performed to provide a predicted value of trajectory adjustment according to the calibrated well inclination and azimuth. The specific process is the reverse form of S5.

[0087] The present application also provides a rescue well trajectory adjustment device, comprising: a data acquisition module, a calculation module, and an adjustment module; the data acquisition module is used to acquire angle parameters of the rescue well at a preset depth, and calculate spatial coordinate data of the rescue well at the preset depth based on the angle parameters; the calculation module is used to acquire the relative position of the rescue well and the current well based on the spatial coordinate data, calibrate the target well trajectory to the rescue well reference based on the relative position, and calculate the angular difference between the rescue well and the target well; the adjustment module is used to adjust the rescue well trajectory based on the angular difference. The actual operating logic and methods of each component have been described in detail in the aforementioned embodiments and will not be described in detail here.

[0088] Please refer to Figure 5. The present application also provides an integrated measuring device suitable for the above-mentioned rescue well trajectory adjustment method, and the device includes: a reducer mechanism 1, a gyro measurement module 2, a transition joint mechanism 3, a magnetic guidance measurement module 4 and a bridle (not shown); the reducer mechanism 1 is respectively connected to the telemetry short section and the gyro measurement module 2; the transition joint mechanism 3 is respectively connected to the gyro measurement module 2 and the magnetic guidance measurement module 4; the bridle is arranged on the telemetry short section and connected to the logging cable, and is used to drive the logging cable through an external logging winch to synchronously place the gyro measurement module 2 and the magnetic guidance measurement module 4 into the well to be logged, so as to complete the gyro measurement and magnetic guidance measurement under the same depth conditions. In actual operation, the device may also include a plug 5. A telemetry sub and a bridle can be connected above the reducer. The internal cables of the gyroscopic measurement module and the magnetic guidance measurement module can be connected to the telemetry sub for data communication. The bridle can be placed above the telemetry sub and connected to the logging cable, enabling the tripping and lowering of the magnetic guidance integrated gyroscopic logging system. To facilitate a clearer understanding of the specific structure of the integrated measurement device provided in this application, the above components will be described one by one below.

[0089] Please refer to Figure 6. In one embodiment of the present application, the reducer mechanism may include upper and lower threaded matching joints 11, a nut 12, an internal rod structure 13 and a reducer 14; the upper and lower threaded matching joints are respectively arranged at both ends of the reducer 14, wherein the upper threaded matching joint is connected to the corresponding joint of the telemetry short section, and the lower threaded matching joint is connected to the gyro measurement module; one end of the internal rod structure 13 is fixed in the reducer 14 by a nut 12, and the other end is connected to the heat absorber in the gyro measurement module.

[0090] Please refer to Figure 7 again. In one embodiment of the present application, the gyro measurement module may include a gyro housing 21, a gyro 23 and a gyro thermos flask 25; the gyro housing 21 covers the gyro 23, and one end of the gyro housing 21 is connected to the reducer mechanism by a thread, and the other end is connected to the transition joint mechanism by a thread; a gyro thermos flask 25 is arranged between the gyro housing 21 and the gyro 23, and the gyro thermos flask 25 contains a gyro upper insulator 22, an annular heat absorber 24 and a gyro lower insulator 26; wherein the gyro 23 is fixedly connected to the gyro upper insulator 22 and the gyro lower insulator 26 respectively, and the annular heat absorber 24 is clamped on the gyro 23 and is located between the gyro upper insulator 22 and the gyro lower insulator 26.

[0091] Overall, the gyro measurement module comprises an internal gyro 23 encased in a pressure-bearing gyro housing 21. A gyro thermos flask 25 is positioned between the internal gyro 23 and the housing 21 to enhance the gyro 23's heat resistance. The gyro thermos flask 25 houses an annular heat absorber 24, an upper gyro insulator 22, and a lower gyro insulator 26. The annular heat absorber 24 is sandwiched between the upper and lower gyro insulators 22 and 26. The upper and lower gyro insulators 22, 23, and 26 are fixedly connected. The upper gyro insulator 22 is fixedly connected to the internal rod structure 13. This fixed connection ensures the stability of the gyro 23 and the measurement results. The upper portion of the gyro housing 21 is threadedly connected to the reducer mechanism 1, and the lower portion is threadedly connected to the transition joint mechanism 3. This fixed connection ensures the pressure-bearing performance of the gyro measurement system 2.

[0092] Please refer to Figure 8. In one embodiment of the present application, the transition joint mechanism includes a plug socket 31, a built-in plug 32, a threaded connecting ring 33 and a transition joint 34; the plug socket 31 is connected and fixed to the gyro housing of the gyro measurement module; the built-in plug 32 is arranged in the plug socket 31, and is used to provide a communication connection between the gyro measurement module and the magnetic guidance measurement module; the threaded connecting ring 33 is connected to the gyro housing and the transition joint 34 through threads; the transition joint 34 is fixed to the magnetic guidance measurement module through the lower thread.

[0093] Please refer to Figure 9. In one embodiment of the present application, the magnetic guide measurement module includes a magnetic guide shell 41, a magnetic guide insulator 42, a magnetic guide upper heat absorber 43, a magnetic guide probe tube 44, a magnetic guide thermos flask 45 and a magnetic guide lower heat absorber 46; the magnetic guide shell 41 covers the magnetic guide probe tube 44, and one end of the magnetic guide shell 41 is connected to the transition joint mechanism through a thread; a magnetic guide thermos flask 45 is arranged between the magnetic guide shell 41 and the magnetic guide probe tube 44, and the magnetic guide thermos flask 45 contains a magnetic guide upper heat absorber 43, a magnetic guide insulator 42 and a magnetic guide lower heat absorber 46; wherein, the magnetic guide probe tube 44 is fixedly connected to the magnetic guide upper heat absorber 43 and the magnetic guide lower heat absorber 46 respectively, and the magnetic guide insulator 42 is fixedly connected to the magnetic guide probe tube 44.

[0094] Overall, the magnetic guidance measurement module comprises an internal magnetic guidance probe tube 44 covered with a pressure-bearing magnetic guidance housing 41. A magnetic guidance thermos 45 is positioned between the internal magnetic guidance probe tube 44 and the magnetic guidance housing 41 to improve the heat resistance of the magnetic guidance probe tube 44. The magnetic guidance thermos 45 houses a magnetic guidance heat insulator 42, a magnetic guidance upper heat absorber 43, and a magnetic guidance lower heat absorber 46. The magnetic guidance probe tube 44 is connected in series between the magnetic guidance upper heat absorber 43 and the magnetic guidance lower heat absorber 46 and is fixedly connected thereto. The fixed connection between the magnetic guidance heat insulator 42 and the magnetic guidance upper heat absorber 43 ensures the stability of the magnetic guidance probe tube 44 and the measurement effect. The upper portion of the magnetic guidance housing 41 is fixedly connected to the transition joint mechanism 3 via threads, and the lower portion is fixedly connected to the plug 5 via threads. This fixed connection ensures the pressure resistance of the magnetic guidance measurement system 4.

[0095] The present application also provides a measurement while drilling system including the integrated measuring device, the system also including an inversion excitation module and a measurement while drilling storage and transmission module; the inversion excitation module is used to generate downhole measurement artificial excitation information through a predetermined electromagnetic energy source, and trigger the magnetic guidance measurement module to collect and obtain the relative position of the rescue well and the current well through the downhole measurement artificial excitation information; the measurement while drilling storage and transmission module is used to send the gyroscopic measurement and magnetic guidance measurement detected by the gyroscopic measurement module and the magnetic guidance measurement module to a ground receiving device through a mud pulse signal; or store the gyroscopic measurement and the magnetic guidance measurement in association in a preset memory.

[0096] Please refer to Figure 10 , where the inverter excitation module includes an AC / DC rectifier and filter circuit, a switching power supply module, a DC / AC inverter power supply, a current sampling and feedback circuit, and an output signal control module. The inverter excitation module uses the average current mode to measure the DC / AC module's output current waveform, feeds it back to the switching power supply module, and calculates the current RMS output current. This current is compared with the preset formation excitation current value. If it exceeds the set current value, the switching power supply module reduces the output voltage; if it is less than the set current value, the switching power supply module increases the output voltage. This current feedback loop enables faster response speeds and provides pulse-by-pulse current limiting protection. The inverter excitation module provides a specific electromagnetic energy source for generating artificial excitation signals for downhole magnetic guidance measurement while drilling. Downhole magnetic guidance measurement is a relative measurement that requires the generation of a specific artificial signal, which is detected by magnetic sensors to achieve precise relative measurement. This application converts rectified mains power into an isolated DC output with an adjustable voltage range of 100V-1kV. This output is then converted to an AC output using a bridge inverter, with a square wave output frequency adjustable from 0.05Hz to 10Hz. Each drive circuit is individually isolated, and optocouplers are used to isolate the voltage and current collection feedback, ensuring that the control circuit is free of high-voltage interference.

[0097] Please refer to Figures 11 and 12. The measurement while drilling storage and transmission module provided in this application structurally includes a drill string 1, a turbine power generation system 2, a circuit control housing 3, a circuit connecting valve core 4, an insulating spring 5, a circuit connecting valve core sleeve 6, a discharge electrode 7, a mud pulse generator / storage device 8, a measuring probe 9, a diverter cover 10, a non-magnetic housing 11, a back pressure valve 12, a screw drill 13, and a drill bit 14.

[0098] The housing is threaded from top to bottom. Two power generation methods are available: a mud-driven turbine generator system 2 powers the lower passive magnetic guidance system, or a battery pack is installed in the lower portion to power the lower passive magnetic guidance system. When the pump is turned on, pressure connects the circuit-connecting valve core 4 to the circuit-connecting valve core sleeve 6, providing power. A mud pulse generator 8 transmits mud pulses to the surface, where signals are received or relevant data is stored in a memory 8. After drilling for a period of time, the drill is pulled out to retrieve the data, thus enabling measurement while drilling. The circuit control housing 3 and the back pressure valve 12, which connect the upper and lower portions of the measuring probe, are made of non-magnetic materials to reduce magnetic interference with the measuring probe 9. The circuit control housing 3, the circuit-connecting valve core 4, the insulating spring 5, and the circuit-connecting valve core sleeve 6 constitute the circuit connection system. When the pump is turned on, pressure connects the circuit-connecting valve core 4 to the circuit-connecting valve core sleeve 6. When the pump is turned off, pressure is released, and the circuit-connecting valve core 4 and the circuit-connecting valve core sleeve 6 spring open under the elastic force of the insulating spring 5, disconnecting the circuit. The contact parts between the circuit connecting valve core 4, the circuit connecting valve core sleeve 6, the circuit control housing 3 and the insulating spring 5 are insulated; the contact part between the circuit connecting valve core 4 and the circuit connecting valve core sleeve 6 after the spring is compressed can conduct the circuit.

[0099] The beneficial technical effects of the present application are: it can conveniently and quickly generate low-frequency square waves and sinusoidal wave currents of different frequencies for electromagnetic ranging excitation in the wellbore; it can eliminate the relative errors between different instruments, improve the accuracy of trajectory adjustment, and thus improve the efficiency of the final rescue well connection / re-entry; it changes the measurement method of gyro measurement and magnetic guidance measurement separately to achieve one-trip measurement; it realizes measurement while drilling, and the data can be sent to the ground in real time through mud pulses, or it can be stored and the data can be read after the drill bit is pulled out of the hole after a trip.

[0100] The present application also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned method when executing the computer program.

[0101] The present application also provides a computer-readable storage medium, which stores a computer program for executing the above method.

[0102] The present application also provides a computer program product, comprising a computer program / instruction, which implements the steps of the above method when executed by a processor.

[0103] As shown in FIG13 , the electronic device 600 may further include: a communication module 110, an input unit 120, an audio processing unit 130, a display 160, and a power supply 170. It is worth noting that the electronic device 600 does not necessarily include all of the components shown in FIG13 ; in addition, the electronic device 600 may also include components not shown in FIG13 , for which reference may be made to the prior art.

[0104] As shown in FIG. 13 , the central processing unit 100 is sometimes also referred to as a controller or an operation control unit, and may include a microprocessor or other processor device and / or logic device. The central processing unit 100 receives inputs and controls the operations of various components of the electronic device 600 .

[0105] Memory 140 may be, for example, one or more of a cache, flash memory, hard drive, removable media, volatile memory, non-volatile memory, or other suitable devices. It may store the aforementioned failure-related information and may also store programs that execute the relevant information. The CPU 100 may execute the programs stored in memory 140 to implement information storage or processing.

[0106] The input unit 120 provides input to the CPU 100. The input unit 120 may be, for example, a keypad or touch input device. The power supply 170 is used to provide power to the electronic device 600. The display 160 is used to display objects such as images and text. The display may be, for example, an LCD display, but is not limited thereto.

[0107] The memory 140 may be a solid-state memory, such as a read-only memory (ROM), a random access memory (RAM), or a SIM card. Alternatively, it may be a memory that retains information even when power is off, can be selectively erased, and is provided with more data. Examples of such memory are sometimes referred to as EPROMs. The memory 140 may also be some other type of device. The memory 140 includes a buffer memory 141 (sometimes referred to as a buffer). The memory 140 may include an application / function storage unit 142 for storing application programs and function programs or processes for executing the operations of the electronic device 600 via the central processing unit 100.

[0108] The memory 140 may also include a data storage unit 143 for storing data, such as contacts, digital data, pictures, sounds, and / or any other data used by the electronic device. The driver storage unit 144 of the memory 140 may include various driver programs for communication functions of the electronic device and / or for executing other functions of the electronic device (such as messaging applications, address book applications, etc.).

[0109] The communication module 110 is a transmitter / receiver 110 that transmits and receives signals via an antenna 111. The communication module (transmitter / receiver) 110 is coupled to the central processor 100 to provide input signals and receive output signals, which may be the same as in a conventional mobile communication terminal.

[0110] Based on different communication technologies, multiple communication modules 110 may be provided in the same electronic device, such as a cellular network module, a Bluetooth module, and / or a wireless local area network module. The communication module (transmitter / receiver) 110 is also coupled to a speaker 131 and a microphone 132 via an audio processor 130 to provide audio output via the speaker 131 and receive audio input from the microphone 132, thereby implementing common telecommunication functions. The audio processor 130 may include any suitable buffer, decoder, amplifier, etc. Furthermore, the audio processor 130 is also coupled to the central processing unit 100, enabling local recording via the microphone 132 and playback of stored audio via the speaker 131.

[0111] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0112] The present application is described with reference to the flow chart and / or block diagram of the method, device (system), and computer program product according to the embodiment of the present application. It should be understood that each flow process and / or box in the flow chart and / or block diagram and the combination of the flow process and / or box in the flow chart and / or block diagram can be realized by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processing machine or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for realizing the function specified in one flow chart flow or multiple flows and / or one box or multiple boxes of the block diagram.

[0113] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0114] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0115] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present application. It should be understood that the above description is only a specific embodiment of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A method for adjusting the trajectory of a rescue well, characterized in that: The method comprises: Collecting angle parameters of the rescue well at a preset depth, and calculating spatial coordinate data of the rescue well at the preset depth according to the angle parameters; The relative position of the rescue well and the current well is collected according to the spatial coordinate data, the trajectory of the target well is calibrated to the rescue well reference by the relative position, and the angular difference between the rescue well and the target well is calculated; The trajectory of the rescue well is adjusted according to the angular difference.

2. The rescue well trajectory adjustment method according to claim 1, characterized in that: The angle parameters of the rescue well at the preset depth include: The inclination and azimuth data of the rescue well at different measuring points at the preset well depth are collected through gyroscopic measurement equipment; The angle parameters are obtained according to the well inclination and azimuth data.

3. The rescue well trajectory adjustment method according to claim 2, characterized in that: Calculating and obtaining the spatial coordinate data of the rescue well at a preset depth according to the angle parameters includes: According to the well inclination angle and azimuth angle data, the spatial coordinates of different measuring points are obtained by recursive calculation; The spatial coordinate data of the rescue well at a preset depth are obtained according to the spatial coordinates.

4. The rescue well trajectory adjustment method according to claim 1, characterized in that: Collecting the relative position of the rescue well and the current well according to the spatial coordinate data includes: collecting the relative position of the rescue well and the current well according to the spatial coordinate data by using a magnetic guidance measurement device.

5. The rescue well trajectory adjustment method according to claim 1, characterized in that: Calibrating the target well trajectory to the rescue well reference by the relative position further comprises: Comparing the well inclination angle of the rescue well with a preset threshold value, and obtaining a preset calibration strategy according to the comparison result; The target well trajectory is calibrated to the rescue well reference by the relative position according to the calibration strategy.

6. The rescue well trajectory adjustment method according to claim 5, characterized in that: Calibrating the target well trajectory to the rescue well reference through the relative position according to the calibration strategy comprises: When the well inclination angle of the rescue well is less than a preset threshold, the horizontal distance between the rescue well and the target well at the same vertical depth is calculated; Calculate the analytical coordinate data of the target well at the same vertical depth according to the horizontal distance, and calculate the original coordinate data at the corresponding vertical depth according to the historical inclination data of the target well; The original coordinates are overlapped with the analysis coordinate data by translating the wellhead of the target well, so that the trajectory of the target well is calibrated to the rescue well benchmark.

7. The rescue well trajectory adjustment method according to claim 5, characterized in that: Calibrating the target well trajectory to the rescue well reference through the relative position according to the calibration strategy comprises: When the well inclination angle of the rescue well is greater than a preset threshold, the vertical depth of the target well scanned by the rescue well at the preset well depth and the projection data of the closest distance between the rescue well and the target well on the horizontal plane are calculated; Calculate the analysis coordinate data of the target well at the vertical depth of the target well according to the projection data, and calculate the original coordinate data at the corresponding vertical depth according to the historical inclination data of the target well; The original coordinates are overlapped with the analysis coordinate data by translating the wellhead of the target well, so that the trajectory of the target well is calibrated to the rescue well benchmark.

8. The rescue well trajectory adjustment method according to claim 1, characterized in that: Calculating the angular difference between the rescue well and the target well comprises: converting the relative position to a Cartesian coordinate system; The angular difference between the rescue well and the target well in the well inclination angle and azimuth angle is obtained by reverse calculation according to the Cartesian coordinate system.

9. A rescue well trajectory adjustment device, characterized in that: The device comprises: a data acquisition module, a calculation module and an adjustment module; The data acquisition module is used to collect angle parameters of the rescue well at a preset depth, and calculate the spatial coordinate data of the rescue well at the preset depth according to the angle parameters; The calculation module is used to collect the relative position of the rescue well and the current well according to the spatial coordinate data, calibrate the target well trajectory to the rescue well benchmark through the relative position, and calculate the angular difference between the rescue well and the target well; The adjustment module is used to adjust the rescue well trajectory according to the angular difference.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 8 is implemented.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program for causing a computer to execute the method according to any one of claims 1 to 8.

12. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instructions are executed by a processor, the steps of the method according to any one of claims 1 to 8 are implemented.

Images