Drilling Rig Drilling State Measuring Device and Measuring Method

Abstract

The present invention discloses a measuring device for the drilling state of a drill rig, which includes a signal acquisition system while drilling. The signal acquisition system while drilling is sequentially connected with a wireless signal transmission system while drilling and an inversion system for the drilling state. This device collects the actual drilling trajectory data and vibration parameters during the drilling construction process, and inversely obtains the real-time drilling trajectory and coal and rock characteristics, accurately grasping the construction trajectory of the gas drainage hole and the coal and rock characteristics. The present invention also discloses a method for measuring the drilling state of a drill rig, and the steps are as follows: Step 1: Determine the installation position of the wireless base station; Step 2: Drill a hole, and the measurement probe for the trajectory while drilling collects data and transmits the data to the inversion system for the drilling state through the tail braid joint; Step 3: Add relay transmission drill pipes until the drilling of the hole ends; Step 4: Move the drill rig to construct a new hole; This method does not rely on the experience of the staff, accurately grasps the drilling trajectory and coal and rock characteristics during the process of the drill rig constructing the gas drainage hole, and solves the problem that the drilling trajectory in the mine cannot be measured.

Description

Technical Field

[0001] The present invention belongs to the technical field of drilling, and specifically relates to a drilling state measurement device for a drilling rig, and also relates to a method for measuring the drilling state by using the drilling state measurement device. Background Art

[0002] Drilling underground in coal mines is an important means to ensure coal mine construction and safe production. It mainly prevents disasters such as gas outburst, floor water inrush, and mine pressure impact by accurately constructing various types of boreholes into coal seams or rock formations, and ensures the safe production of the mine. Therefore, the drilling quality of the borehole directly determines the disaster prevention effect of the working face. However, the current rotary drilling process technology of ordinary drilling rigs commonly used underground relies heavily on the experience of workers for borehole design and construction. During the construction process of ordinary drilling rigs, the borehole trajectory is not measurable, and there are problems such as low construction accuracy, small borehole depth, and a large amount of ineffective footage, which cannot meet the requirements of mine gas drainage and lead to insufficient mine disaster prevention capabilities. Summary of the Invention

[0003] The first object of the present invention is to provide a drilling state measurement device for a drilling rig, which solves the problem that the borehole trajectory is not measurable during the construction process of ordinary drilling rigs in the prior art.

[0004] The second object of the present invention is to provide a method for measuring the drilling state of a drilling rig.

[0005] The first technical solution adopted by the present invention is a drilling state measurement device for a drilling rig, which includes a signal acquisition system while drilling. The signal acquisition system while drilling is sequentially connected with a wireless signal transmission system while drilling and a drilling state inversion system.

[0006] The characteristics of the first technical solution of the present invention also lie in:

[0007] The signal acquisition system while drilling is specifically a measurement probe for the borehole trajectory while drilling. The wireless transmission system includes relay transmission drill pipes. There are several relay transmission drill pipes that are connected end to end. One end of the relay transmission drill pipes connected end to end is connected to the measurement probe for the borehole trajectory while drilling, and the other end of the relay transmission drill pipes connected end to end is connected to a signal transfer tail braid. The signal transfer tail braid is wirelessly connected to a wireless base station. The wireless base station is set within a range of 1 m - 50 m from the drilling rig and is connected to the mine industrial ring network. The wireless base station is connected to the drilling state inversion system through the mine industrial ring network.

[0008] The drilling state inversion system is composed of a signal input module, a borehole trajectory inversion module while drilling, a coal and rock characteristic inversion module, and a three-dimensional display module for the drilling state.

[0009] One end of the measurement tool for measuring the trajectory while drilling is the male head of the tool, and the other end is the female head of the tool. Inside the body of the measurement tool for measuring the trajectory while drilling, a monitoring unit, a data processing and output unit, a tool power supply unit, and a tool output electromagnetic coil are integrated. The tool output electromagnetic coil is connected to the data processing and output unit through a tool output electromagnetic coil lead wire. The tool output electromagnetic coil is arranged on the coil base of the tool female head, and the coil base of the tool female head is installed at the end of the inner cavity of the tool female head. The tool female head is connected to a relay transmission drill pipe, and the tool power supply unit is respectively connected to the monitoring unit and the data processing and output unit.

[0010] The tool power supply unit includes a tool power management chip, a tool lithium battery, and a tool wireless charging module; the tool lithium battery and the tool wireless charging module are respectively connected to the tool power management chip, and the tool power supply unit is respectively connected to the monitoring unit and the data processing and output unit through the tool power management chip; the monitoring unit includes a three-axis acceleration sensor, a three-axis magnetoresistive sensor, a gyroscope, and a vibration sensor; the data processing and output unit includes a microprocessor, a memory, and a modulation and demodulation circuit; the three-axis acceleration sensor, the three-axis magnetoresistive sensor, the gyroscope, the vibration sensor, the memory, and the modulation and demodulation circuit are respectively connected to the microprocessor, and the microprocessor is connected to the tool output electromagnetic coil through the modulation and demodulation circuit.

[0011] The relay transmission drill pipe includes a relay drill pipe. One end of the relay drill pipe is the male head of the relay drill pipe, and the other end is the female head of the relay drill pipe. The male head of the relay drill pipe is matched and connected to the female head of the tool, and the female head of the relay drill pipe is connected to a signal transfer tail braid.

[0012] Inside the relay drill pipe, a drill pipe input electromagnetic coil, a transmission drill pipe power supply unit, a relay operational amplifier unit, and a drill pipe output electromagnetic coil are integrated. The drill pipe input electromagnetic coil and the tool output electromagnetic coil together form an electromagnetic mutual inductance coil. The drill pipe input electromagnetic coil is arranged on the coil base of the male head of the relay drill pipe, and the coil base of the male head of the relay drill pipe is installed at the end of the inner cavity of the male head of the relay drill pipe. The drill pipe input electromagnetic coil is connected to the relay operational amplifier unit through a drill pipe input electromagnetic coil lead wire. The transmission drill pipe power supply unit is connected to the relay operational amplifier unit. The relay operational amplifier unit is connected to the drill pipe output electromagnetic coil through a drill pipe output electromagnetic coil lead wire. The drill pipe output electromagnetic coil is arranged on the coil base of the female head of the relay drill pipe, and the coil base of the female head of the relay drill pipe is installed at the end of the inner cavity of the female head of the relay drill pipe.

[0013] The transmission drill pipe power supply unit includes a transmission drill pipe power management chip, a transmission drill pipe lithium battery, and a transmission drill pipe wireless charging module. The transmission drill pipe lithium battery and the transmission drill pipe wireless charging module are respectively connected to the transmission drill pipe power management chip. The transmission drill pipe power supply unit is connected to the relay operational amplifier unit through the transmission drill pipe power management chip. The relay operational amplifier unit includes a transmission drill pipe signal modulation chip, a filter, and an operational amplifier. The output end of the filter is connected to the transmission drill pipe signal modulation chip, the input end of the filter is connected to the drill pipe input electromagnetic coil, the input end of the operational amplifier is connected to the transmission drill pipe signal modulation chip, and the output end of the operational amplifier is connected to the drill pipe output electromagnetic coil.

[0014] The signal transfer tail braid includes a tail braid connector. The head end of the tail braid connector is matched and connected to the relay drill pipe female head. Inside the tail braid connector, there are integrated a tail braid input electromagnetic coil, a signal modulation chip, a wifi module, an antenna, and a tail braid power supply unit. The tail braid input electromagnetic coil and the drill pipe output electromagnetic coil together form an electromagnetic mutual inductance coil. The tail braid input electromagnetic coil is arranged on the tail braid input electromagnetic coil base, and the tail braid input electromagnetic coil base is installed at the end of the inner cavity of the tail braid connector. The tail braid input electromagnetic coil is connected to the signal modulation chip through the tail braid input electromagnetic coil lead. The signal modulation chip is also respectively connected to the wifi module and the tail braid power supply unit. The wifi module is also connected to the antenna, and the wifi module is wirelessly connected to the wireless base station through the antenna.

[0015] The tail braid power supply unit includes a tail braid power management chip, a tail braid lithium battery, and a tail braid wireless charging module. The tail braid lithium battery and the tail braid wireless charging module are respectively connected to the tail braid power management chip. The tail braid power management chip is also respectively connected to the signal modulation chip and the wifi module.

[0016] The materials of the probe output electromagnetic coil, the drill pipe input electromagnetic coil, the drill pipe output electromagnetic coil, and the tail braid input electromagnetic coil are iron-based nanocrystalline alloy. The number of turns of the coil is 600 turns, the output voltage is 3V, and the resonance frequency is 120kHz.

[0017] The interiors of the measurement-while-drilling probe, the relay drill pipe, and the tail braid connector are all filled with resin and completely sealed.

[0018] The second technical solution adopted by the present invention is a method for measuring the drilling state of the drilling rig. The above-mentioned drilling rig drilling state measuring device is used for measurement, and the specific steps are as follows:

[0019] Step 1: Determine the installation position of the wireless base station underground, select an installation point within 50m backward from the drilling construction, then connect the wireless base station to the mine industrial ring network, and test the data transmission stability.

[0020] Step 2: Conduct construction drilling. Connect the drill bit to the downhole trajectory measurement probe, and then successively connect the relay drill pipes and the tail braid joint. Start the drilling construction. During the construction process, the downhole trajectory measurement probe continuously collects attitude angle data, azimuth data, speed data, acceleration data, horizontal data, position data, vibration amplitude data, vibration energy data, vibration frequency data, and vibration time data during the drilling construction, and transmits the data to the drilling state inversion system located above the well through the relay drill pipes and the tail braid joint via the mine industrial ring network.

[0021] Step 3: As the drilling continues to deepen, continuously add relay drill pipes between the downhole trajectory measurement probe and the tail braid joint until all relay drill pipes and the downhole trajectory measurement probe are withdrawn after the drilling construction is completed.

[0022] Step 4: Move the drill rig to construct a new borehole. If the construction location is within 50 m of the installation point of the wireless base station, repeat Steps 2 to 3. If it exceeds 50 m, repeat Steps 1 to 3.

[0023] The beneficial effects of the present invention are as follows:

[0024] For the first technical solution of the drill rig drilling state measurement device of the present invention, the actual drilling trajectory data and vibration parameters during the drilling construction are collected in real time through the downhole signal acquisition system, and then transmitted to the drilling state real-time inversion system through the downhole signal wireless transmission system. The real-time drilling trajectory and coal and rock characteristics are inversely obtained, and the construction trajectory and coal and rock characteristics of the gas drainage holes can be accurately grasped.

[0025] For the second technical solution of the drill rig drilling state measurement method of the present invention, this method constructs boreholes by using the drill rig drilling state measurement device, does not rely on the experience of the staff, accurately grasps the borehole trajectory and coal and rock characteristics during the process of the drill rig constructing gas drainage boreholes, and effectively solves the problems of unmeasurable borehole trajectories in mines, resulting in low construction accuracy, small borehole depth, and a large amount of ineffective footage. Description of the Drawings

[0026] Figure 1 is the schematic diagram of data transmission in the drill rig drilling state measurement device of the present invention;

[0027] Figure 2 is the schematic structural connection diagram of the downhole trajectory measurement probe, relay drill pipes, and tail braid joint in the drill rig drilling state measurement device of the present invention;

[0028] Figure 3 is the schematic diagram of the principle of the drill rig drilling state measurement device of the present invention;

[0029] Figure 4 is the schematic diagram of the principle of the downhole signal acquisition system in the drill rig drilling state measurement device of the present invention;

[0030] Figure 5 It is a schematic diagram of the internal module connection of the downhole signal acquisition system in the drilling state measurement device of the present invention;

[0031] Figure 6 It is a schematic diagram of the principle of the downhole signal wireless transmission system in the drilling state measurement device of the present invention;

[0032] Figure 7 It is a schematic diagram of the internal module connection of the relay transmission drill pipe in the drilling state measurement device of the present invention;

[0033] Figure 8 It is a schematic diagram of the data signal transmission in the drilling state measurement device of the present invention;

[0034] Figure 9 It is a schematic diagram of the internal module connection of the signal transfer tail braid in the drilling state measurement device of the present invention.

[0035] In the figure, 1. Downhole trajectory measurement probe, 1-1. Probe male head, 1-2. Probe female head, 1-3. Probe female head coil base;

[0036] 2. Monitoring unit, 3. Probe power supply unit, 4. Data processing and output unit;

[0037] 5. Probe output electromagnetic coil, 5-1. Probe output electromagnetic coil lead;

[0038] 6. Relay drill pipe, 6-1. Relay drill pipe male head, 6-2. Relay drill pipe female head, 6-3. Relay drill pipe male head coil base, 6-4. Relay drill pipe female head coil base;

[0039] 7. Drill pipe input electromagnetic coil, 7-1. Drill pipe input electromagnetic coil lead;

[0040] 8. Transmission drill pipe power supply unit, 9. Relay operational amplifier unit;

[0041] 10. Drill pipe output electromagnetic coil, 10-1. Drill pipe output electromagnetic coil lead;

[0042] 11. Tail braid connector, 11-1. Tail braid input electromagnetic coil base;

[0043] 12. Tail braid input electromagnetic coil, 12-1. Tail braid input electromagnetic coil lead;

[0044] 13. Signal modulation chip, 14. Wifi module, 15. Antenna, 16. Tail braid power supply unit, 17. Wireless base station, 18. Mine industrial ring network, 19. Drilling state inversion system. Specific implementation method

[0045] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0046] The first technical solution provided by the present invention is a drilling state measurement device for a drill rig, as Figure 1 and Figure 2 shown, which includes a signal acquisition system while drilling. The signal acquisition system while drilling is sequentially connected to a wireless signal transmission system while drilling and an inversion system 19 for the drilling state. Among them, the signal acquisition system while drilling is mainly used to collect real-time data of the actual drilling trajectory and coal and rock characteristics during the drilling construction process, convert the collected analog signals into digital signals for storage, and at the same time convert them into electrical signals for transmission. The wireless signal transmission system while drilling is mainly used to transmit the electrical signals output by the signal acquisition system while drilling to the real-time inversion system for the drilling state in real time. The inversion system for the drilling state is mainly used to process and analyze various data collected during the drilling process, inversely calculate parameters such as the actual drilling trajectory, drilling state, and coal and rock characteristics of the borehole in real time, and perform three-dimensional visualization display. By collecting real-time data of the actual drilling trajectory and vibration parameters during the drilling construction process through the signal acquisition system while drilling, and then transmitting them to the real-time inversion system for the drilling state through the wireless signal transmission system while drilling, the real-time trajectory and coal and rock characteristics of the borehole can be inversely obtained, and the construction trajectory and coal and rock characteristics of the gas drainage hole can be accurately grasped.

[0047] The signal acquisition system while drilling is specifically a measurement probe 1 for the drilling trajectory while drilling. The measurement probe 1 for the drilling trajectory while drilling is mainly used to collect real-time data such as coal and rock characteristics and actual drilling trajectory during the drilling construction process, convert the collected analog signals into digital signals for storage, and at the same time convert them into electrical signals for electromagnetic induction output.

[0048] The wireless transmission system includes relay transmission drill pipes. The relay transmission drill pipes enhance the electromagnetic signals for the electromagnetic induction input and perform electromagnetic induction output, that is, the relay transmission drill pipes amplify and output the electromagnetic induction signals output by the measurement probe 1 for the drilling trajectory while drilling with fidelity. There are several relay transmission drill pipes that are connected end to end. One end of the relay transmission drill pipes connected end to end is connected to the measurement probe 1 for the drilling trajectory while drilling, and the other end of the relay transmission drill pipes connected end to end is connected to a signal transfer tail braid. The signal transfer tail braid demodulates and forwards the electromagnetic induction input and outputs it through a wifi signal, that is, the signal transfer tail braid converts the electromagnetic induction signals transmitted by the relay transmission drill pipes into wireless signals and sends them to the wireless base station 17. The signal transfer tail braid is wirelessly connected to the wireless base station 17. The wireless base station 17 converts the wireless signals received in real time into electrical signals and transmits them to the inversion system 19 for the drilling state through the mine industrial ring network 18. The wireless base station 17 is set within a range of 1m - 50m from the drill rig and is connected to the mine industrial ring network 18. The wireless base station 17 is connected to the inversion system 19 for the drilling state through the mine industrial ring network 18.

[0049] The drilling state inversion system 19 consists of a signal input module, a real-time drilling trajectory inversion module, a coal and rock feature inversion module, and a three-dimensional display module for drilling state.

[0050] The signal input module inputs the data collected by the real-time drilling signal acquisition system and classifies the data; the classification types of the data include attitude angle data, azimuth data, speed data, acceleration data, horizontal data, position data, vibration amplitude data, vibration energy data, vibration frequency data, and vibration time data; the real-time drilling trajectory inversion module calls the attitude angle data, azimuth data, speed data, acceleration data, horizontal data, and position data classified by the signal input module and inverses the real-time drilling trajectory; the coal and rock feature inversion module calls the vibration parameters such as amplitude, frequency, energy, and time classified by the signal input module and inverses the coal and rock characteristics at the drilling position through the vibration parameters; the three-dimensional display module for drilling state real-time draws the construction trajectory of the borehole and the three-dimensional dynamic change diagram of the coal and rock characteristics according to the real-time drilling trajectory inversed by the real-time drilling trajectory inversion module and the coal and rock characteristics inversed by the coal and rock feature inversion module.

[0051] The real-time drilling trajectory measurement probe 1, as Figure 3 and Figure 4 shown, one end of the real-time drilling trajectory measurement probe 1 is the probe male head 1-1, the other end of the real-time drilling trajectory measurement probe 1 is the probe female head 1-2, the inside of the tube body of the real-time drilling trajectory measurement probe 1 integrates a monitoring unit 2, a data processing and output unit 4, a probe power supply unit 3, and a probe output electromagnetic coil 5. The probe output electromagnetic coil 5 is connected to the data processing and output unit 4 through the probe output electromagnetic coil lead 5-1. The probe output electromagnetic coil 5 is arranged on the probe female head coil base 1-3. The probe female head coil base 1-3 is installed at the end of the inner cavity of the probe female head 1-2. The probe female head 1-2 is connected to the relay transmission drill pipe. The probe power supply unit 3 is respectively connected to the monitoring unit 2 and the data processing and output unit 4.

[0052] The monitoring unit 2 can realize the real-time monitoring of relevant parameters such as the movement trajectory of the real-time drilling trajectory measurement probe 1 and the coal and rock characteristics during the drilling construction process; the data processing and output unit 4 can respectively convert the analog signals output by each sensor of the monitoring unit 2 into digital signals and electrical signals, store the monitoring data, and output the electrical signals through the probe output electromagnetic coil 5 in the form of electromagnetic induction.

[0053] The probe power supply unit 3, as Figure 5As shown in the figure, the downhole tool power supply unit 3 includes a downhole tool power management chip, a downhole tool lithium battery, and a downhole tool wireless charging module, which can stably supply power to the monitoring unit 2 and the data processing and output unit 4 inside the measurement-while-drilling (MWD) downhole tool 1. The downhole tool lithium battery and the downhole tool wireless charging module are respectively connected to the downhole tool power management chip, and the downhole tool power supply unit 3 is respectively connected to the monitoring unit 2 and the data processing and output unit 4 through the downhole tool power management chip.

[0054] The monitoring unit 2 includes a triaxial acceleration sensor, a triaxial magnetoresistive sensor, a gyroscope, and a vibration sensor. The triaxial acceleration sensor, the triaxial magnetoresistive sensor, and the gyroscope are used to detect the attitude angle, azimuth angle, horizontal, speed, acceleration and other actual drilling trajectory data of the MWD downhole tool. The vibration sensor has a sensitivity of 0.0001%, and can sense the minute vibration of the MWD downhole tool, ensuring accurate information about the vibration of the MWD downhole tool during the drilling construction process, and then analyzing the coal and rock characteristics through the vibration parameters.

[0055] The data processing and output unit 4 includes a microprocessor, a memory, and a modulation and demodulation circuit. The microprocessor converts the analog signals output by the sensors of the monitoring unit 2 into electrical signals and digital signals. The lead wire 5-1 of the downhole tool output electromagnetic coil is connected to the modulation and demodulation circuit of the data processing and output unit 4. The modulation and demodulation circuit converts the electrical signal into an alternating sinusoidal current signal, and forms an alternating magnetic field through the downhole tool output electromagnetic coil 5 of the MWD downhole tool 1 for electromagnetic induction transmission.

[0056] The triaxial acceleration sensor, the triaxial magnetoresistive sensor, the gyroscope, the vibration sensor, the memory, and the modulation and demodulation circuit are respectively connected to the microprocessor, and the microprocessor is connected to the downhole tool output electromagnetic coil 5 through the modulation and demodulation circuit.

[0057] The relay transmission drill pipe, such as Figure 3 and Figure 6 As shown in the figure, the relay transmission drill pipe includes a relay drill pipe 6. One end of the relay drill pipe 6 is a relay drill pipe male head 6-1, and the other end of the relay drill pipe 6 is a relay drill pipe female head 6-2. The relay drill pipe male head 6-1 is matched and connected to the downhole tool female head 1-2, and the relay drill pipe female head 6-2 is connected to the signal transfer tail braid.

[0058] Inside the relay drill pipe 6, there are integrated a drill pipe input electromagnetic coil 7, a transmission drill pipe power supply unit 8, a relay operational amplifier unit 9, and a drill pipe output electromagnetic coil 10. The drill pipe input electromagnetic coil 7 and the probe output electromagnetic coil 5 together form an electromagnetic mutual inductance coil. The drill pipe input electromagnetic coil 7 is arranged on the male coil base 6-3 of the relay drill pipe. The male coil base 6-3 of the relay drill pipe is installed at the end of the inner cavity of the male head 6-1 of the relay drill pipe. The drill pipe input electromagnetic coil 7 is connected to the relay operational amplifier unit 9 through the drill pipe input electromagnetic coil lead 7-1. The transmission drill pipe power supply unit 8 is connected to the relay operational amplifier unit 9. The relay operational amplifier unit 9 is connected to the drill pipe output electromagnetic coil 10 through the drill pipe output electromagnetic coil lead 10-1. The drill pipe output electromagnetic coil 10 is arranged on the female coil base 6-4 of the relay drill pipe. The female coil base 6-4 of the relay drill pipe is installed at the end of the inner cavity of the female head 6-2 of the relay drill pipe.

[0059] The transmission drill pipe power supply unit 8, as Figure 7 shown, the transmission drill pipe power supply unit 8 includes a transmission drill pipe power management chip, a transmission drill pipe lithium battery, and a transmission drill pipe wireless charging module. The transmission drill pipe lithium battery and the transmission drill pipe wireless charging module are respectively connected to the transmission drill pipe power management chip. The transmission drill pipe power supply unit 8 is connected to the relay operational amplifier unit 9 through the transmission drill pipe power management chip. The relay operational amplifier unit 9 is powered by the transmission drill pipe power supply unit 8. The relay operational amplifier unit 9 includes a transmission drill pipe signal modulation chip, a filter, and an operational amplifier. The output end of the filter is connected to the transmission drill pipe signal modulation chip. The input end of the filter is connected to the drill pipe input electromagnetic coil 7. The input end of the operational amplifier is connected to the transmission drill pipe signal modulation chip. The output end of the operational amplifier is connected to the drill pipe output electromagnetic coil 10. Through the relay operational amplifier unit 9, the electromagnetic signal output by the measurement probe 1 of the drilling trajectory can be filtered, amplified, and transmitted. The drill pipe input electromagnetic coil 7, as Figure 8 shown, the drill pipe input electromagnetic coil 7 and the probe output electromagnetic coil 5 together form an electromagnetic mutual inductance coil, forming an alternating magnetic field for electromagnetic induction transmission. The relay operational amplifier unit 9 filters and amplifies the electromagnetic induction signal transmitted by the drill pipe input electromagnetic coil 7, and outputs the amplified electromagnetic induction signal through the drill pipe output electromagnetic coil 10.

[0060] The signal transfer tail braid, as Figure 9As shown in the figure, the signal transfer pigtail includes a pigtail connector 11. The head end of the pigtail connector 11 is matched and connected with the female head of the relay drill pipe 6-2. Inside the pigtail connector 11, there are integrated a pigtail input electromagnetic coil 12, a signal modulation chip 13, a wifi module 14, an antenna 15, and a pigtail power supply unit 16. The pigtail input electromagnetic coil 12 and the drill pipe output electromagnetic coil 10 together form an electromagnetic mutual inductance coil. The pigtail input electromagnetic coil 12 is arranged on the pigtail input electromagnetic coil base 11-1, and the pigtail input electromagnetic coil base 11-1 is installed at the end of the inner cavity of the pigtail connector 11. The pigtail input electromagnetic coil 12 is connected to the signal modulation chip 13 through the pigtail input electromagnetic coil lead 12-1. The signal modulation chip 13 is also respectively connected to the wifi module 14 and the pigtail power supply unit 16. The wifi module 14 is also connected to the antenna 15. The wifi module 14 is wirelessly connected to the wireless base station 17 through the antenna 15. During the drilling construction process, the drill pipe output electromagnetic coil 10 and the pigtail input electromagnetic coil 12 together form an electromagnetic mutual inductance coil to form an alternating magnetic field for electromagnetic induction transmission. The electromagnetic induction signal of the relay drill pipe 6 enters the signal modulation chip 13 through the pigtail input electromagnetic coil 12. The signal modulation chip 13 converts the electromagnetic induction signal into a digital signal, and converts the digital signal into a wireless radio frequency signal through the wifi module 14 and sends it to the wireless base station 17 through the antenna 15. The real-time drilling trajectory data and vibration parameters during the drilling construction process are collected in real time by the measurement probe 1 while drilling. Then, they are transmitted to the drilling state inversion system 19 through the relay drill pipe 6, the pigtail connector 11, and the wireless base station 17. The real-time drilling trajectory and coal and rock characteristics are inversely obtained, and the construction trajectory and coal and rock characteristics of the gas drainage hole can be accurately mastered.

[0061] The pigtail power supply unit 16, as Figure 9 shown, the pigtail power supply unit 16 includes a pigtail power management chip, a pigtail lithium battery, and a pigtail wireless charging module. The pigtail lithium battery and the pigtail wireless charging module are respectively connected to the pigtail power management chip. The pigtail power management chip is also respectively connected to the signal modulation chip 13 and the wifi module 14. The signal modulation chip 13 and the wifi module 14 are powered by the pigtail power supply unit 16.

[0062] The materials of the probe output electromagnetic coil 5, the drill pipe input electromagnetic coil 7, the drill pipe output electromagnetic coil 10, and the pigtail input electromagnetic coil 12 are iron-based nanocrystalline alloy, the number of coil turns is 600 turns, the output voltage is 3V, and the resonance frequency is 120kHz.

[0063] The interiors of the measurement probe 1 while drilling, the relay drill pipe 6, and the pigtail connector 11 are all filled with resin and completely sealed.

[0064] The second technical solution provided by the present invention is a method for measuring the drilling state of the drill rig. The measurement is carried out by using the above-mentioned drilling state measurement device of the drill rig. The specific steps are as follows:

[0065] Step 1: Determine the installation location of the wireless base station 17 underground. Select an installation point within 50 m backward from the drilling construction, then connect the wireless base station 17 to the mine industrial ring network 18, and test the data transmission stability.

[0066] Step 2: Construct a borehole. Connect the drill bit to the measurement probe 1 for in - hole trajectory. Then connect the relay drill pipes 6 and the tail braid joint 11 in sequence, and start the borehole construction. During the construction process, the measurement probe 1 for in - hole trajectory continuously collects attitude angle data, azimuth data, speed data, acceleration data, horizontal data, position data, vibration amplitude data, vibration energy data, vibration frequency data, and vibration time data of the borehole construction process, and transmits the data to the drilling state inversion system 19 located above the well through the relay drill pipes 6 and the tail braid joint 11 via the mine industrial ring network 18.

[0067] Step 3: As the borehole continues to be constructed deeper, continuously add relay drill pipes 6 between the measurement probe 1 for in - hole trajectory and the tail braid joint 11 until all relay drill pipes 6 and the measurement probe 1 for in - hole trajectory are withdrawn after the borehole construction is completed.

[0068] Step 4: Move the drilling rig and construct a new borehole. If the construction location is within 50 m of the installation point of the wireless base station 17, repeat Steps 2 to 3; if it exceeds 50 m, repeat Steps 1 to 3.

[0069] According to the method for measuring the drilling state of the drilling rig, by using the device for measuring the drilling state of the drilling rig to construct the borehole, without relying on the experience of the staff, it can accurately master the borehole trajectory and coal - rock characteristics during the construction of the gas drainage borehole by the drilling rig, effectively solving the problems of unmeasurable borehole trajectory in the mine, resulting in low construction accuracy, small borehole depth, and much ineffective footage.

[0070] The device for measuring the drilling state of the drilling rig of the present invention is specifically implemented as follows:

[0071] Embodiment 1

[0072] The device for measuring the drilling state of the drilling rig includes a signal acquisition system while drilling. The signal acquisition system while drilling is sequentially connected with a wireless signal transmission system while drilling and the drilling state inversion system 19.

[0073] Embodiment 2

[0074] The device for measuring the drilling state of the drilling rig includes a signal acquisition system while drilling. The signal acquisition system while drilling is sequentially connected with a wireless signal transmission system while drilling and the drilling state inversion system 19.

[0075] The signal acquisition system while drilling is specifically the measurement tool 1 for the trajectory while drilling. The wireless transmission system includes relay transmission drill pipes. There are several relay transmission drill pipes that are connected end to end. One end of the relay transmission drill pipes connected end to end is connected to the measurement tool 1 for the trajectory while drilling, and the other end of the relay transmission drill pipes connected end to end is connected to the signal transfer tail braid. The signal transfer tail braid is wirelessly connected to the wireless base station 17. The wireless base station 17 is set within a range of 1 m - 50 m from the drilling rig and is connected to the mine industrial ring network 18. The wireless base station 17 is connected to the drilling state inversion system 19 through the mine industrial ring network 18.

[0076] The drilling state inversion system 19 is composed of a signal input module, a trajectory inversion module while drilling, a coal and rock feature inversion module, and a three-dimensional display module for the drilling state.

[0077] Embodiment 3

[0078] The device for measuring the drilling state of the drilling rig includes a signal acquisition system while drilling. The signal acquisition system while drilling is sequentially connected to a wireless transmission system for signals while drilling and the drilling state inversion system 19.

[0079] The signal acquisition system while drilling is specifically the measurement tool 1 for the trajectory while drilling. The wireless transmission system includes relay transmission drill pipes. There are several relay transmission drill pipes that are connected end to end. One end of the relay transmission drill pipes connected end to end is connected to the measurement tool 1 for the trajectory while drilling, and the other end of the relay transmission drill pipes connected end to end is connected to the signal transfer tail braid. The signal transfer tail braid is wirelessly connected to the wireless base station 17. The wireless base station 17 is set within a range of 1 m - 50 m from the drilling rig and is connected to the mine industrial ring network 18. The wireless base station 17 is connected to the drilling state inversion system 19 through the mine industrial ring network 18.

[0080] The drilling state inversion system 19 is composed of a signal input module, a trajectory inversion module while drilling, a coal and rock feature inversion module, and a three-dimensional display module for the drilling state.

[0081] One end of the measurement tool 1 for the trajectory while drilling is the male head 1-1 of the tool, and the other end is the female head 1-2 of the tool. Inside the pipe body of the measurement tool 1 for the trajectory while drilling, a monitoring unit 2, a data processing and output unit 4, a tool power supply unit 3, and a tool output electromagnetic coil 5 are integrated. The tool output electromagnetic coil 5 is connected to the data processing and output unit 4 through the tool output electromagnetic coil lead 5-1. The tool output electromagnetic coil 5 is set on the tool female head coil base 1-3. The tool female head coil base 1-3 is installed at the end of the inner cavity of the tool female head 1-2. The tool female head 1-2 is connected to the relay transmission drill pipe. The tool power supply unit 3 is respectively connected to the monitoring unit 2 and the data processing and output unit 4.

[0082] The probe power supply unit 3 includes a probe power management chip, a probe lithium battery, and a probe wireless charging module; the probe lithium battery and the probe wireless charging module are respectively connected to the probe power management chip, and the probe power supply unit 3 is respectively connected to the monitoring unit 2 and the data processing and output unit 4 through the probe power management chip; the monitoring unit 2 includes a three-axis acceleration sensor, a three-axis magnetoresistive sensor, a gyroscope, and a vibration sensor; the data processing and output unit 4 includes a microprocessor, a memory, and a modulation and demodulation circuit; the three-axis acceleration sensor, the three-axis magnetoresistive sensor, the gyroscope, the vibration sensor, the memory, and the modulation and demodulation circuit are respectively connected to the microprocessor, and the microprocessor is connected to the probe output electromagnetic coil 5 through the modulation and demodulation circuit.

[0083] Embodiment 4

[0084] The drilling state measurement device of the drill rig includes a signal acquisition system while drilling, and the signal acquisition system while drilling is sequentially connected with a wireless signal transmission system while drilling and an inversion system 19 of the drilling state.

[0085] The signal acquisition system while drilling is specifically the measurement probe 1 of the drilling trajectory while drilling. The wireless transmission system includes relay transmission drill pipes. There are several relay transmission drill pipes that are connected end to end. One end of the relay transmission drill pipes connected end to end is connected to the measurement probe 1 of the drilling trajectory while drilling, and the other end of the relay transmission drill pipes connected end to end is connected to the signal transfer tail braid. The signal transfer tail braid is wirelessly connected to the wireless base station 17. The wireless base station 17 is arranged within a range of 1 m - 50 m from the drill rig and is connected to the mine industrial ring network 18. The wireless base station 17 is connected to the inversion system 19 of the drilling state through the mine industrial ring network 18.

[0086] The inversion system 19 of the drilling state is composed of a signal input module, a drilling trajectory inversion module, a coal and rock characteristic inversion module, and a three-dimensional display module of the drilling state.

[0087] One end of the measurement probe 1 of the drilling trajectory while drilling is a probe male head 1-1, and the other end is a probe female head 1-2. The inside of the tube body of the measurement probe 1 of the drilling trajectory while drilling integrates a monitoring unit 2, a data processing and output unit 4, a probe power supply unit 3, and a probe output electromagnetic coil 5. The probe output electromagnetic coil 5 is connected to the data processing and output unit 4 through a probe output electromagnetic coil lead 5-1. The probe output electromagnetic coil 5 is arranged on a probe female head coil base 1-3, and the probe female head coil base 1-3 is installed at the end of the inner cavity of the probe female head 1-2. The probe female head 1-2 is connected to the relay transmission drill pipe, and the probe power supply unit 3 is respectively connected to the monitoring unit 2 and the data processing and output unit 4.

[0088] The probe power supply unit 3 includes a probe power management chip, a probe lithium battery, and a probe wireless charging module; the probe lithium battery and the probe wireless charging module are respectively connected to the probe power management chip, and the probe power supply unit 3 is respectively connected to the monitoring unit 2 and the data processing and output unit 4 through the probe power management chip; the monitoring unit 2 includes a three-axis acceleration sensor, a three-axis magnetoresistive sensor, a gyroscope, and a vibration sensor; the data processing and output unit 4 includes a microprocessor, a memory, and a modulation and demodulation circuit; the three-axis acceleration sensor, the three-axis magnetoresistive sensor, the gyroscope, the vibration sensor, the memory, and the modulation and demodulation circuit are respectively connected to the microprocessor, and the microprocessor is connected to the probe output electromagnetic coil 5 through the modulation and demodulation circuit.

[0089] The relay transmission drill pipe includes a relay drill pipe 6. One end of the relay drill pipe 6 is a relay drill pipe male head 6-1, and the other end of the relay drill pipe 6 is a relay drill pipe female head 6-2. The relay drill pipe male head 6-1 is connected to the probe female head 1-2 in a matching manner, and the relay drill pipe female head 6-2 is connected to the signal transfer tail braid.

[0090] Inside the relay drill pipe 6, a drill pipe input electromagnetic coil 7, a transmission drill pipe power supply unit 8, a relay operational amplifier unit 9, and a drill pipe output electromagnetic coil 10 are integrated. The drill pipe input electromagnetic coil 7 and the probe output electromagnetic coil 5 together form an electromagnetic mutual inductance coil. The drill pipe input electromagnetic coil 7 is arranged on the relay drill pipe male head coil base 6-3, and the relay drill pipe male head coil base 6-3 is installed at the inner cavity end of the relay drill pipe male head 6-1. The drill pipe input electromagnetic coil 7 is connected to the relay operational amplifier unit 9 through a drill pipe input electromagnetic coil lead 7-1. The transmission drill pipe power supply unit 8 is connected to the relay operational amplifier unit 9. The relay operational amplifier unit 9 is connected to the drill pipe output electromagnetic coil 10 through a drill pipe output electromagnetic coil lead 10-1. The drill pipe output electromagnetic coil 10 is arranged on the relay drill pipe female head coil base 6-4, and the relay drill pipe female head coil base 6-4 is installed at the inner cavity end of the relay drill pipe female head 6-2.

[0091] The transmission drill pipe power supply unit 8 includes a transmission drill pipe power management chip, a transmission drill pipe lithium battery, and a transmission drill pipe wireless charging module. The transmission drill pipe lithium battery and the transmission drill pipe wireless charging module are respectively connected to the transmission drill pipe power management chip. The transmission drill pipe power supply unit 8 is connected to the relay operational amplifier unit 9 through the transmission drill pipe power management chip. The relay operational amplifier unit 9 includes a transmission drill pipe signal modulation chip, a filter, and an operational amplifier. The output end of the filter is connected to the transmission drill pipe signal modulation chip. The input end of the filter is connected to the drill pipe input electromagnetic coil 7. The input end of the operational amplifier is connected to the transmission drill pipe signal modulation chip. The output end of the operational amplifier is connected to the drill pipe output electromagnetic coil 10.

[0092] Embodiment 5

[0093] The drilling state measurement device of the drill rig includes a signal acquisition system while drilling. The signal acquisition system while drilling is sequentially connected with a wireless signal transmission system while drilling and an inversion system 19 of the drilling state.

[0094] The signal acquisition system while drilling is specifically a measurement probe 1 for the drilling trajectory while drilling. The wireless transmission system includes relay transmission drill pipes. There are several relay transmission drill pipes which are connected end to end. One end of the relay transmission drill pipes connected end to end is connected with the measurement probe 1 for the drilling trajectory while drilling. The other end of the relay transmission drill pipes connected end to end is connected with a signal transfer tail braid. The signal transfer tail braid is wirelessly connected with a wireless base station 17. The wireless base station 17 is arranged within the range of 1m - 50m from the drill rig and is connected with the mine industrial ring network 18. The wireless base station 17 is connected with the inversion system 19 of the drilling state through the mine industrial ring network 18.

[0095] The inversion system 19 of the drilling state is composed of a signal input module, an inversion module for the drilling trajectory while drilling, an inversion module for the coal and rock characteristics, and a three - dimensional display module for the drilling state.

[0096] One end of the measurement probe 1 for the drilling trajectory while drilling is a probe male head 1 - 1, and the other end is a probe female head 1 - 2. Inside the pipe body of the measurement probe 1 for the drilling trajectory while drilling, a monitoring unit 2, a data processing and output unit 4, a probe power supply unit 3, and a probe output electromagnetic coil 5 are integrated. The probe output electromagnetic coil 5 is connected with the data processing and output unit 4 through a probe output electromagnetic coil lead 5 - 1. The probe output electromagnetic coil 5 is arranged on a probe female head coil base 1 - 3. The probe female head coil base 1 - 3 is installed at the end of the inner cavity of the probe female head 1 - 2. The probe female head 1 - 2 is connected with the relay transmission drill pipe. The probe power supply unit 3 is respectively connected with the monitoring unit 2 and the data processing and output unit 4.

[0097] The probe power supply unit 3 includes a probe power management chip, a probe lithium battery, and a probe wireless charging module; the probe lithium battery and the probe wireless charging module are respectively connected with the probe power management chip. The probe power supply unit 3 is respectively connected with the monitoring unit 2 and the data processing and output unit 4 through the probe power management chip; the monitoring unit 2 includes a three - axis acceleration sensor, a three - axis magnetoresistive sensor, a gyroscope, and a vibration sensor; the data processing and output unit 4 includes a microprocessor, a memory, and a modulation and demodulation circuit; the three - axis acceleration sensor, the three - axis magnetoresistive sensor, the gyroscope, the vibration sensor, the memory, and the modulation and demodulation circuit are respectively connected with the microprocessor. The microprocessor is connected with the probe output electromagnetic coil 5 through the modulation and demodulation circuit.

[0098] The relay transmission drill pipe includes a relay drill pipe 6. One end of the relay drill pipe 6 is a relay drill pipe male head 6 - 1, and the other end is a relay drill pipe female head 6 - 2. The relay drill pipe male head 6 - 1 is matingly connected with the probe female head 1 - 2. The relay drill pipe female head 6 - 2 is connected with the signal transfer tail braid.

[0099] Inside the relay drill pipe 6, there are integrated a drill pipe input electromagnetic coil 7, a transmission drill pipe power supply unit 8, a relay operational amplifier unit 9, and a drill pipe output electromagnetic coil 10. The drill pipe input electromagnetic coil 7 and the probe output electromagnetic coil 5 together form an electromagnetic mutual inductance coil. The drill pipe input electromagnetic coil 7 is arranged on the male coil base 6-3 of the relay drill pipe. The male coil base 6-3 of the relay drill pipe is installed at the end of the inner cavity of the male head 6-1 of the relay drill pipe. The drill pipe input electromagnetic coil 7 is connected to the relay operational amplifier unit 9 through the drill pipe input electromagnetic coil lead 7-1. The transmission drill pipe power supply unit 8 is connected to the relay operational amplifier unit 9. The relay operational amplifier unit 9 is connected to the drill pipe output electromagnetic coil 10 through the drill pipe output electromagnetic coil lead 10-1. The drill pipe output electromagnetic coil 10 is arranged on the female coil base 6-4 of the relay drill pipe. The female coil base 6-4 of the relay drill pipe is installed at the end of the inner cavity of the female head 6-2 of the relay drill pipe.

[0100] The transmission drill pipe power supply unit 8 includes a transmission drill pipe power management chip, a transmission drill pipe lithium battery, and a transmission drill pipe wireless charging module. The transmission drill pipe lithium battery and the transmission drill pipe wireless charging module are respectively connected to the transmission drill pipe power management chip. The transmission drill pipe power supply unit 8 is connected to the relay operational amplifier unit 9 through the transmission drill pipe power management chip. The relay operational amplifier unit 9 includes a transmission drill pipe signal modulation chip, a filter, and an operational amplifier. The output end of the filter is connected to the transmission drill pipe signal modulation chip. The input end of the filter is connected to the drill pipe input electromagnetic coil 7. The input end of the operational amplifier is connected to the transmission drill pipe signal modulation chip. The output end of the operational amplifier is connected to the drill pipe output electromagnetic coil 10.

[0101] The signal transfer tail braid includes a tail braid connector 11. The head end of the tail braid connector 11 is connected to the female head 6-2 of the relay drill pipe in a matching manner. Inside the tail braid connector 11, there are integrated a tail braid input electromagnetic coil 12, a signal modulation chip 13, a wifi module 14, an antenna 15, and a tail braid power supply unit 16. The tail braid input electromagnetic coil 12 and the drill pipe output electromagnetic coil 10 together form an electromagnetic mutual inductance coil. The tail braid input electromagnetic coil 12 is arranged on the tail braid input electromagnetic coil base 11-1. The tail braid input electromagnetic coil base 11-1 is installed at the end of the inner cavity of the tail braid connector 11. The tail braid input electromagnetic coil 12 is connected to the signal modulation chip 13 through the tail braid input electromagnetic coil lead 12-1. The signal modulation chip 13 is also respectively connected to the wifi module 14 and the tail braid power supply unit 16. The wifi module 14 is also connected to the antenna 15. The wifi module 14 is wirelessly connected to the wireless base station 17 through the antenna 15.

[0102] The tail braid power supply unit 16 includes a tail braid power management chip, a tail braid lithium battery, and a tail braid wireless charging module. The tail braid lithium battery and the tail braid wireless charging module are respectively connected to the tail braid power management chip. The tail braid power management chip is also respectively connected to the signal modulation chip 13 and the wifi module 14.

[0103] Example 6

[0104] The drilling state measurement device of the drill rig includes a signal acquisition system while drilling. The signal acquisition system while drilling is sequentially connected with a wireless signal transmission system while drilling and an inversion system 19 of the drilling state.

[0105] The signal acquisition system while drilling is specifically a measurement probe 1 for the drilling trajectory while drilling. The wireless transmission system includes relay transmission drill pipes. There are several relay transmission drill pipes which are connected end to end. One end of the relay transmission drill pipes connected end to end is connected with the measurement probe 1 for the drilling trajectory while drilling. The other end of the relay transmission drill pipes connected end to end is connected with a signal transfer tail braid. The signal transfer tail braid is wirelessly connected with a wireless base station 17. The wireless base station 17 is arranged within a range of 1 m - 50 m from the drill rig and is connected with the mine industrial ring network 18. The wireless base station 17 is connected with the inversion system 19 of the drilling state through the mine industrial ring network 18.

[0106] The inversion system 19 of the drilling state is composed of a signal input module, a drilling trajectory inversion module, a coal and rock feature inversion module, and a three-dimensional display module of the drilling state.

[0107] One end of the measurement probe 1 for the drilling trajectory while drilling is a probe male head 1-1, and the other end is a probe female head 1-2. Inside the pipe body of the measurement probe 1 for the drilling trajectory while drilling, a monitoring unit 2, a data processing and output unit 4, a probe power supply unit 3, and a probe output electromagnetic coil 5 are integrated. The probe output electromagnetic coil 5 is connected with the data processing and output unit 4 through a probe output electromagnetic coil lead 5-1. The probe output electromagnetic coil 5 is arranged on a probe female head coil base 1-3. The probe female head coil base 1-3 is installed at the end of the inner cavity of the probe female head 1-2. The probe female head 1-2 is connected with the relay transmission drill pipe. The probe power supply unit 3 is respectively connected with the monitoring unit 2 and the data processing and output unit 4.

[0108] The probe power supply unit 3 includes a probe power management chip, a probe lithium battery, and a probe wireless charging module; the probe lithium battery and the probe wireless charging module are respectively connected with the probe power management chip. The probe power supply unit 3 is respectively connected with the monitoring unit 2 and the data processing and output unit 4 through the probe power management chip; the monitoring unit 2 includes a three-axis acceleration sensor, a three-axis magnetoresistive sensor, a gyroscope, and a vibration sensor; the data processing and output unit 4 includes a microprocessor, a memory, and a modulation and demodulation circuit; the three-axis acceleration sensor, the three-axis magnetoresistive sensor, the gyroscope, the vibration sensor, the memory, and the modulation and demodulation circuit are respectively connected with the microprocessor. The microprocessor is connected with the probe output electromagnetic coil 5 through the modulation and demodulation circuit.

[0109] The relay transmission drill pipe includes a relay drill pipe 6. One end of the relay drill pipe 6 is a male head 6-1 of the relay drill pipe, and the other end of the relay drill pipe 6 is a female head 6-2 of the relay drill pipe. The male head 6-1 of the relay drill pipe is connected to the female head 1-2 of the exploration pipe in a matching manner, and the female head 6-2 of the relay drill pipe is connected to the signal transfer tail braid.

[0110] Inside the relay drill pipe 6, a drill pipe input electromagnetic coil 7, a transmission drill pipe power supply unit 8, a relay operational amplifier unit 9, and a drill pipe output electromagnetic coil 10 are integrated. The drill pipe input electromagnetic coil 7 and the exploration pipe output electromagnetic coil 5 together form an electromagnetic mutual inductance coil. The drill pipe input electromagnetic coil 7 is arranged on the coil base 6-3 of the male head of the relay drill pipe, and the coil base 6-3 of the male head of the relay drill pipe is installed at the end of the inner cavity of the male head 6-1 of the relay drill pipe. The drill pipe input electromagnetic coil 7 is connected to the relay operational amplifier unit 9 through a drill pipe input electromagnetic coil lead 7-1. The transmission drill pipe power supply unit 8 is connected to the relay operational amplifier unit 9. The relay operational amplifier unit 9 is connected to the drill pipe output electromagnetic coil 10 through a drill pipe output electromagnetic coil lead 10-1. The drill pipe output electromagnetic coil 10 is arranged on the coil base 6-4 of the female head of the relay drill pipe, and the coil base 6-4 of the female head of the relay drill pipe is installed at the end of the inner cavity of the female head 6-2 of the relay drill pipe.

[0111] The transmission drill pipe power supply unit 8 includes a transmission drill pipe power management chip, a transmission drill pipe lithium battery, and a transmission drill pipe wireless charging module. The transmission drill pipe lithium battery and the transmission drill pipe wireless charging module are respectively connected to the transmission drill pipe power management chip. The transmission drill pipe power supply unit 8 is connected to the relay operational amplifier unit 9 through the transmission drill pipe power management chip. The relay operational amplifier unit 9 includes a transmission drill pipe signal modulation chip, a filter, and an operational amplifier. The output end of the filter is connected to the transmission drill pipe signal modulation chip, the input end of the filter is connected to the drill pipe input electromagnetic coil 7, the input end of the operational amplifier is connected to the transmission drill pipe signal modulation chip, and the output end of the operational amplifier is connected to the drill pipe output electromagnetic coil 10.

[0112] The signal transfer tail braid includes a tail braid connector 11. The head end of the tail braid connector 11 is connected to the female head 6-2 of the relay drill pipe in a matching manner. Inside the tail braid connector 11, a tail braid input electromagnetic coil 12, a signal modulation chip 13, a wifi module 14, an antenna 15, and a tail braid power supply unit 16 are integrated. The tail braid input electromagnetic coil 12 and the drill pipe output electromagnetic coil 10 together form an electromagnetic mutual inductance coil. The tail braid input electromagnetic coil 12 is arranged on the coil base 11-1 of the tail braid input electromagnetic coil, and the coil base 11-1 of the tail braid input electromagnetic coil is installed at the end of the inner cavity of the tail braid connector 11. The tail braid input electromagnetic coil 12 is connected to the signal modulation chip 13 through a tail braid input electromagnetic coil lead 12-1. The signal modulation chip 13 is also respectively connected to the wifi module 14 and the tail braid power supply unit 16. The wifi module 14 is also connected to the antenna 15. The wifi module 14 is wirelessly connected to a wireless base station 17 through the antenna 15.

[0113] The tail braid power supply unit 16 includes a tail braid power management chip, a tail braid lithium battery, and a tail braid wireless charging module. The tail braid lithium battery and the tail braid wireless charging module are respectively connected to the tail braid power management chip, and the tail braid power management chip is also respectively connected to the signal modulation chip 13 and the wifi module 14.

[0114] The materials of the probe output electromagnetic coil 5, the drill pipe input electromagnetic coil 7, the drill pipe output electromagnetic coil 10, and the tail braid input electromagnetic coil 12 are iron-based nanocrystalline alloys, with 600 turns of coil, an output voltage of 3V, and a resonance frequency of 120kHz.

[0115] The interiors of the measurement while drilling probe 1, the relay drill pipe 6, and the tail braid connector 11 are filled with resin and completely sealed.

Claims

1. A drilling rig drilling state measuring device, characterized in that: It includes a drilling signal acquisition system, which is sequentially connected to a drilling signal wireless transmission system and a drilling state inversion system (19); The drilling signal acquisition system is specifically a drilling trajectory measurement probe (1), and the wireless transmission system includes a relay transmission drill pipe, wherein the relay transmission drill pipe is provided in a plurality and connected end to end, one end of the end-to-end connected relay transmission drill pipe is connected to the drilling trajectory measurement probe (1), and the other end of the end-to-end connected relay transmission drill pipe is connected to a signal transfer tail pigtail, and the signal transfer tail pigtail is wirelessly connected to a wireless base station (17), the wireless base station (17) is arranged within a range of 1m-50m from the drilling rig and is connected to a mine industrial ring network (18), and the wireless base station (17) is connected to a drilling state inversion system (19) via the mine industrial ring network (18); The drilling state inversion system (19) is composed of a signal input module, a drilling trajectory inversion module, a coal rock feature inversion module, and a drilling state three-dimensional display module; One end of the while-drilling trajectory measurement probe (1) is a probe male head (1-1), and the other end of the while-drilling trajectory measurement probe (1) is a probe female head (1-2). A monitoring unit (2), a data processing output unit (4), a probe power supply unit (3), and a probe output electromagnetic coil (5) are integrated inside the body of the while-drilling trajectory measurement probe (1). The probe output electromagnetic coil (5) is connected to the data processing output unit (4) via a probe output electromagnetic coil lead (5-1). The probe output electromagnetic coil (5) is arranged on a probe female head coil base (1-3). The probe female head coil base (1-3) is installed at the end of the inner cavity of the probe female head (1-2). The probe female head (1-2) is connected to a relay transmission drill pipe. The probe power supply unit (3) is connected to the monitoring unit (2) and the data processing output unit (4), respectively. The relay transmission drill rod comprises a relay drill rod (6), one end of the relay drill rod (6) is a relay drill rod male head (6-1), the other end of the relay drill rod (6) is a relay drill rod female head (6-2), the relay drill rod male head (6-1) is matched and connected with the probe female head (1-2), and the relay drill rod female head (6-2) is connected with the signal transfer pigtail; The relay drill rod (6) is internally integrated with a drill rod input electromagnetic coil (7), a transmission drill rod power supply unit (8), a relay operational amplifier unit (9), and a drill rod output electromagnetic coil (10). The drill rod input electromagnetic coil (7) and the probe tube output electromagnetic coil (5) together form an electromagnetic mutual inductance coil. The drill rod input electromagnetic coil (7) is arranged on a relay drill rod male head coil base (6-3). The relay drill rod male head coil base (6-3) is installed at the inner cavity end of the relay drill rod male head (6-1). 7) is connected to the relay amplifier unit (9) via a drill pipe input electromagnetic coil lead (7-1), the transmission drill pipe power supply unit (8) is connected to the relay amplifier unit (9), the relay amplifier unit (9) is connected to the drill pipe output electromagnetic coil (10) via a drill pipe output electromagnetic coil lead (10-1), the drill pipe output electromagnetic coil (10) is arranged on the relay drill pipe female head coil base (6-4), and the relay drill pipe female head coil base (6-4) is installed at the inner cavity end of the relay drill pipe female head (6-2); The signal transfer pigtail comprises a pigtail connector (11), the head end of the pigtail connector (11) is matched and connected to the relay drill pipe female head (6-2), the pigtail connector (11) internally integrates a pigtail input electromagnetic coil (12), a signal modulation chip (13), a wifi module (14), an antenna (15), and a pigtail power supply unit (16), the pigtail input electromagnetic coil (12) and the drill pipe output electromagnetic coil (10) together form an electromagnetic mutual inductance coil, and the pigtail input electromagnetic coil (12) is arranged on the pigtail input electromagnetic coil base (11 -1), the pigtail input electromagnetic coil base (11-1) is installed at the end of the inner cavity of the pigtail connector (11), the pigtail input electromagnetic coil (12) and the signal modulation chip (13) are connected via the pigtail input electromagnetic coil lead (12-1), the signal modulation chip (13) is also connected to the wifi module (14) and the pigtail power supply unit (16), the wifi module (14) is also connected to the antenna (15), and the wifi module (14) is wirelessly connected to the wireless base station (17) via the antenna (15).

2. The drilling state measuring device of a drilling rig according to claim 1, characterized in that: The probe power supply unit (3) comprises a probe power management chip, a probe lithium battery, and a probe wireless charging module; the probe lithium battery and the probe wireless charging module are respectively connected to the probe power management chip, and the probe power supply unit (3) is respectively connected to the monitoring unit (2) and the data processing output unit (4) through the probe power management chip; the monitoring unit (2) comprises a three-axis acceleration sensor, a three-axis magnetoresistive sensor, a gyroscope, and a vibration sensor; the data processing output unit (4) comprises a microprocessor, a storage device, and a modulation and demodulation circuit; the three-axis acceleration sensor, the three-axis magnetoresistive sensor, the gyroscope, the vibration sensor, the storage device, and the modulation and demodulation circuit are respectively connected to the microprocessor, and the microprocessor is connected to the probe output electromagnetic coil (5) through the modulation and demodulation circuit.

3. The drilling state measuring device of a drilling rig according to claim 2, characterized in that: The transmission drill rod power supply unit (8) comprises a transmission drill rod power management chip, a transmission drill rod lithium battery, and a transmission drill rod wireless charging module. The transmission drill rod lithium battery and the transmission drill rod wireless charging module are respectively connected to the transmission drill rod power management chip. The transmission drill rod power supply unit (8) is connected to a relay amplifier unit (9) via the transmission drill rod power management chip. The relay amplifier unit (9) comprises a transmission drill rod signal modulation chip, a filter, and an operational amplifier. The output end of the filter is connected to the transmission drill rod signal modulation chip, the input end of the filter is connected to the drill rod input electromagnetic coil (7), the input end of the operational amplifier is connected to the transmission drill rod signal modulation chip, and the output end of the operational amplifier is connected to the drill rod output electromagnetic coil (10).

4. The drilling state measuring device of a drilling rig according to claim 3, characterized in that: The pigtail power supply unit (16) comprises a pigtail power management chip, a pigtail lithium battery, and a pigtail wireless charging module; the pigtail lithium battery and the pigtail wireless charging module are respectively connected to the pigtail power management chip; and the pigtail power management chip is also respectively connected to the signal modulation chip (13) and the wifi module (14).

5. The drilling state measuring device of a drilling rig according to claim 4, characterized in that: The material of the probe tube output electromagnetic coil (5), the drill rod input electromagnetic coil (7), the drill rod output electromagnetic coil (10), and the pigtail input electromagnetic coil (12) is an iron-based nanocrystalline alloy, the number of coil turns is 600, the output voltage is 3V, and the resonant frequency is 120kHz; The interiors of the trajectory measurement while drilling probe (1), the relay drill pipe (6), and the pigtail joint (11) are all filled with resin and are completely sealed.

6. A method for measuring the drilling state of a drilling rig, characterized in that: The drilling state measuring device of the drilling rig described in any one of claims 3 to 5 is used for measurement, and the specific steps are as follows: Step 1: Determine the installation location of the wireless base station (17) underground, select an installation point within 50m backward by drilling construction, then connect the wireless base station (17) to the mine industrial ring network (18), and test the data transmission stability; Step 2: Drilling is performed, the drill bit is connected to the trajectory measurement probe tube (1), and then the relay drill rod (6) and the pigtail joint (11) are connected in sequence to start drilling construction. During the construction process, the trajectory measurement probe tube (1) continuously collects attitude angle data, azimuth data, velocity data, acceleration data, horizontal data, position data, vibration amplitude data, vibration energy data, vibration frequency data, and vibration time data during the drilling construction process, and transmits the data to the drilling state inversion system (19) located above the well through the relay drill rod (6) and the pigtail joint (11) via the mine industrial ring network (18); Step 3: As the drilling continues to go deeper, relay drill rods (6) are continuously added between the while-drilling trajectory measurement probe (1) and the pigtail joint (11), until all relay drill rods (6) and the while-drilling trajectory measurement probe (1) are withdrawn after the drilling is completed; Step 4: Move the drilling rig and construct a new borehole. If the construction location is within 50 m of the installation point of the wireless base station (17), repeat steps 2 to 3. If it is beyond 50 m, repeat steps 1 to 3.

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