Millimeter wave deep well drilling platform

Abstract

The utility model discloses a millimeter wave deep well drilling platform, which belongs to the technical field of drilling equipment and comprises a drilling machine, a drilling rod and a gyrotron, the drilling machine and the gyrotron are arranged above the ground surface, one end of the drilling rod is connected with a drilling winch on the drilling machine, and the other end of the drilling rod extends into the ground from a drilling well. The drill rod comprises a drill rod shell and a waveguide tube in the drill rod shell, one end of the waveguide tube is communicated with the waveguide collector, the other end of the waveguide tube is provided with an opening and extends into the ground along with a drill bit of the drill rod, and the gyrotron is provided with a dynamic waveguide and movably connected with the waveguide collector through the dynamic waveguide. The dynamic waveguide comprises a waveguide leading-in pipe, a tail pipe and a plurality of groups of waveguide transmission pipes which are connected in sequence, and a plurality of millimeter wave reflection devices are arranged in the dynamic waveguide. Millimeter wave drilling is utilized, the problems of drill bit abrasion, replacement and the like in traditional drilling are solved through millimeter wave drill bit drilling, and the drilling cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of drilling equipment technology, specifically a millimeter-wave deep well drilling platform. Background Technology

[0002] Millimeter waves refer to electromagnetic waves with wavelengths of 1-10 millimeters (30-300 GHz frequency). Millimeter wave drilling utilizes high-power millimeter waves (megawatt-level 30-300 GHz high-frequency electromagnetic waves) emitted by a rotary tube, transmitting energy to the bottom of the well through a low-loss waveguide, causing the rock to melt and vaporize at high temperatures. Typically, conventional drill pipes (including rotary drill pipes, air drill pipes, etc.) are used to drill to a certain depth. Once the bedrock layer is reached, the drill pipe is replaced with a millimeter wave drill pipe to continue drilling. Unlike the mechanical wear of traditional drill bits, this technology avoids wear on the drill bit due to high-temperature, high-hardness bedrock through non-contact drilling, enabling drilling to reach and penetrate ultra-deep, high-temperature, high-hardness bedrock exceeding 10,000 meters, which is inaccessible by conventional drilling techniques. Millimeter wave drilling technology not only achieves deep drilling and high efficiency, but also shows that drilling costs increase linearly with drilling depth, unlike conventional drilling technologies which increase exponentially with drilling depth.

[0003] A low-loss waveguide is installed inside the drill pipe and extends to the bottom of the well. A dynamic waveguide connects to the gyrotube. Existing high-power gyrotubes were originally designed for nuclear fusion ignition. Due to their precision, weight, and safety requirements, and because their operation involves structural stability, magnetic field uniformity, safety, and operational efficiency, a rigid support and shielding integrated design is necessary. Therefore, a dynamic waveguide that can move up and down with the waveguide is required. When the gyrotube is fixed to the ground, the dynamic waveguide connected to the gyrotube can move up and down synchronously with the drill pipe. Utility Model Content

[0004] The purpose of this invention is to provide a millimeter-wave deep well drilling platform to solve at least one aspect of the problems and defects mentioned in the background art.

[0005] A millimeter-wave deep well drilling platform includes a drilling rig, a drill pipe, and a rotary tube. The drilling rig and rotary tube are installed above the ground surface. One end of the drill pipe is connected to the drilling winch on the drilling rig, and the other end extends into the ground through the drilling well. A waveguide concentrator is provided at the top of the drill pipe. The drill pipe includes a drill pipe shell and a waveguide inside the drill pipe shell. One end of the waveguide is connected to the waveguide concentrator, and the other end has an opening and extends into the ground with the drill bit of the drill pipe. A dynamic waveguide is provided on the rotary tube and is movably connected to the waveguide concentrator through the dynamic waveguide.

[0006] The dynamic waveguide includes a waveguide inlet tube, a tail tube, and several sets of waveguide transmission tubes connected in sequence. One end of the waveguide inlet tube is connected to a gyro tube, and the other end extends away from the gyro tube and is rotatably connected to the inlet of the first set of waveguide transmission tubes. One end of the tail tube is rotatably connected to the outlet of the last set of waveguide transmission tubes, and the other end is connected to a waveguide concentrator. Several millimeter-wave reflecting devices are installed inside the dynamic waveguide.

[0007] Furthermore, the waveguide transmission tube includes an intermediate tube and a movable tube. The movable tube has an inlet on one side for rotating and installing the intermediate tube, and an outlet on the other side for rotating and installing the intermediate tube or the tail tube.

[0008] Furthermore, the millimeter-wave reflecting device includes a reflecting part, which is disposed at the end of the waveguide inlet tube and both ends of the movable tube. The waveguide inlet tube and the movable tube are connected to the intermediate tube or the tail tube through the reflecting part. The reflecting part is provided with a reflector that is inclined and faces the inside of the pipe. The reflector is inclined at an angle of 45°. The two pipes connected through the reflecting part are perpendicular to each other.

[0009] Furthermore, the reflector is equipped with a cooling chamber, which is connected to a coolant circulation device. The cooling chamber is in contact with the back of the reflector.

[0010] Furthermore, the inner wall of the waveguide is provided with several corrugated grooves arranged around the central axis of the waveguide. The spacing between the corrugated grooves increases linearly from the top to the bottom without interruption according to the initial spacing, and the spacing between adjacent corrugated grooves closer to the top of the waveguide is smaller.

[0011] Furthermore, it also includes a circulating cooler located above the ground surface. The drill rod is also equipped with an inlet water channel and a return water channel. The inlet water channel and the return water channel are connected at one end of the drill bit. The other end of the inlet water channel is equipped with an inlet water port, which is connected to the outlet end of the circulating cooler through a pipe. The other end of the return water channel is equipped with an outlet water port, which is connected to the inlet end of the circulating cooler through a pipe. The inlet water channel is attached to the outer wall of the waveguide.

[0012] Furthermore, it also includes a high-pressure air compressor located above the ground surface. The outlet of the high-pressure air compressor is connected to the internal cavity of the waveguide through a pipe, and the inlet of the high-pressure air compressor is connected to the outlet of the drilling well located on the ground through a pipe.

[0013] Furthermore, a cartridge dust collector is installed above the ground. The inlet of the cartridge dust collector is connected to the outlet of the drilling well located on the ground via a pipeline, and the outlet of the cartridge dust collector is connected to the inlet of the high-pressure air compressor via a pipeline.

[0014] Furthermore, the angle between the drill pipe and the ground is 1.57 ± 0.01 radians.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This scheme utilizes millimeter-wave drilling, which avoids problems such as drill bit wear and replacement in traditional drilling, reduces drilling costs, and can drill to ultra-deep, high-temperature bedrock at depths of over 10,000 meters to obtain high-grade deep geothermal resources. These high-grade thermal energy can then be used for power generation and cascade utilization.

[0017] 2. This solution connects the waveguide and gyrotube inside the drill pipe using a dynamic waveguide. The dynamic waveguide is a movable structure assembled from a waveguide inlet pipe, a tailpipe, and several sets of waveguide transmission pipes. Each pipe of the dynamic waveguide is equipped with a millimeter-wave reflecting device, which reflects the millimeter waves in the movable arm. This allows the millimeter waves to be transmitted along the dynamic waveguide from the gyrotube to the waveguide concentrator, and then from the waveguide concentrator to the waveguide. When the drill pipe moves up and down in the drilling well, the dynamic waveguide also moves accordingly. This ensures that, with the gyrotube fixed to the ground, the dynamic waveguide can always connect the waveguide concentrator and the gyrotube during drilling, reducing the probability that the vertical movement of the drill pipe during drilling will affect the transmission of millimeter waves.

[0018] 3. Waveguide deformation due to gravity increases the loss during waveguide transmission. This solution designs the internal corrugation spacing of the waveguide, with the spacing between adjacent corrugations closer to the top of the waveguide being smaller, thereby reducing the loss caused by deformation.

[0019] 4. This solution uses a circulating cooler to cool the waveguide, preventing the high-temperature rock debris returning to the ground from adversely affecting the low-loss transmission of millimeter waves.

[0020] 5. This solution can change the direction of the drill bit at the bottom of the well by tilting the drill rod, which is originally completely perpendicular to the ground, within a normal range of a small angle of less than 0.01 arc degrees. This eliminates the need for horizontally penetrating millimeter-wave waveguides, allowing a single well to be drilled horizontally for over 100 meters. This greatly expands the heat exchange area and capacity at the bottom of the well, increases power, and meets the power requirements for replacing coal-fired boilers in thermal power plants. Attached Figure Description

[0021] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 for Figure 1 Enlarged view of the drill bit;

[0024] Figure 3 This is a schematic diagram of the internal structure of a waveguide;

[0025] Figure 4 for Figure 1 A schematic diagram of the cross-sectional structure of a dynamic waveguide;

[0026] Figure 5 for Figure 4 Enlarged diagram of A in the middle;

[0027] Figure 6 for Figure 1 Right view of the dynamic waveguide;

[0028] Figure 7 A schematic diagram illustrating the process of generating electricity using this scheme.

[0029] In the diagram: 1. Ground; 2. Drilling well; 21. Injection well; 22. Production well; 23. Turbine generator set; 24. Power grid; 25. Circulation system; 3. Drilling rig; 4. Drilling winch; 5. Distribution cabinet; 6. Cable; 7. Dynamic waveguide; 70. Reflector; 71. Waveguide inlet pipe; 72. Intermediate pipe; 73. Movable pipe; 74. Reflector; 75. Tailpipe; 76. Limiting block; 77. Cooling chamber; 8. Rotary tube; 9. Waveguide concentrator; 10. Waveguide tube; 11. Drill bit; 12. Cartridge dust collector; 13. Corrugated groove; 14. Circulating cooler; 15. Water inlet channel; 16. Water return channel; 17. High-pressure air compressor. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-6As shown in the embodiment of this utility model, a millimeter-wave deep well drilling platform includes a drilling rig 3, a drill pipe, and a rotary tube 8. The drilling rig 3 and the rotary tube 8 are installed on the ground 1. One end of the drill pipe is connected to the drilling winch 4 on the drilling rig 3, and the other end extends into the ground from the inlet of the drilling well 2. A waveguide concentrator 9 is provided at the top of the drill pipe. The drill pipe includes a drill pipe shell and a waveguide 10 inside the drill pipe shell. One end of the waveguide 10 is connected to the waveguide concentrator 9, and the other end is provided with an opening and a drill bit 11 that follows the drill pipe, extending into the ground from the drilling well 2. A dynamic waveguide 7 is provided on the rotary tube 8, and the waveguide concentrator 9 is movably connected through the dynamic waveguide 7.

[0033] The dynamic waveguide 7 includes a waveguide inlet tube 71, a tail tube 75, and several sets of waveguide transmission tubes connected in sequence. One end of the waveguide inlet tube 71 is connected to the gyro tube 8, and the other end extends away from the gyro tube 8 and is rotatably connected to the inlet of the first set of waveguide transmission tubes. One end of the tail tube 75 is rotatably connected to the outlet of the last set of waveguide transmission tubes, and the other end is connected to the waveguide concentrator 9. Several millimeter-wave reflecting devices are provided inside the dynamic waveguide 7.

[0034] The waveguide transmission tube includes a central tube 72 and a movable tube 73. One end of the movable tube 73 has an inlet for rotatably mounting the central tube 72, and the other end has an outlet for rotatably mounting either the central tube 72 or the tailpipe 75. One end of the central tube 72 of the first set of waveguide transmission tubes is rotatably connected to the outlet on one side of the waveguide inlet tube 71. When the drill pipe moves up and down, the movable tube 73 swings up and down around the central tube 72, allowing the entire dynamic waveguide 7 to move with the drill pipe. Therefore, with the rotary tube 8 fixed, the up-and-down movement of the drill pipe will not affect the transmission of millimeter waves by the dynamic waveguide 7.

[0035] Please refer to Figure 1 , Figure 4As shown, the millimeter-wave reflecting device includes a reflecting part 70, which is located at the end of the waveguide inlet tube 71 and both ends of the movable tube 73. The waveguide inlet tube 71 and the movable tube 73 are connected to the intermediate tube 72 and the tail tube 75 through the reflecting part 70. The reflecting part 70 is provided with a reflector 74 that is inclined and faces the inside of the pipe. The two pipes connected by the reflecting part 70 are perpendicular to each other. Millimeter waves are generated from the gyrotube 8 and enter the waveguide inlet tube 71. After reaching the reflector 70 of the waveguide inlet tube 71, they are reflected by the mirror 74 and enter the intermediate tube 72. From the end of the intermediate tube 72, they enter the beginning of the movable tube 73. Reflected by the reflector 70 at the beginning of the movable tube 73, they proceed to the end of the movable tube 73 and are reflected by the reflector 70 at the end of the movable tube 73, entering the next intermediate tube 72. The millimeter waves are reflected and transmitted in this manner and finally enter the waveguide concentrator 9 through the tail tube 75. From the waveguide concentrator 9 (which is prior art and contains a millimeter wave reflecting device, allowing the millimeter waves entering the waveguide concentrator 9 to be transmitted to another waveguide assembly), they enter the waveguide 10. The reflector 74 has a tilt angle of 45°.

[0036] Please see Figure 1 , Figure 5 As shown, the reflector 70 is provided with a cooling chamber 77, which has an inlet and an outlet. Both the inlet and outlet are connected to a coolant circulation device (the coolant circulation device is existing technology and has a structure similar to the circulating cooler 14 in this solution. It has built-in coolant and uses a pump to pump the coolant from the coolant circulation device into the reflector 70 through the inlet of the cooling chamber 77 and pump it back into the coolant circulation device through the outlet). The cooling chamber 77 is in contact with the back of the reflector 74. The cooling chamber 77 can provide cooling for the reflector 74.

[0037] Please see Figure 5 As shown, an annular groove is provided along the inner wall at the outlet of the reflector 70, and a limiting block 76 is provided at the end of the intermediate tube 72. The limiting block 76 is embedded in the annular groove and can move along the annular groove. This design allows the intermediate tube 72 to be rotatably installed at the outlet of the reflector 70. All structures involving rotatable connections in this solution are similar to this design.

[0038] In one embodiment, see Figure 3As shown, the inner wall of the waveguide 10 is provided with several corrugated grooves 13 arranged around the central axis of the waveguide 10. Adjacent corrugated grooves 13 are attached to form a corrugated structure. The spacing between the corrugated grooves 13 increases linearly and continuously from top to bottom according to the initial spacing (the spacing between the topmost corrugated grooves is the initial spacing). The spacing between adjacent corrugated grooves 13 closer to the top of the waveguide 10 is smaller. The unique geometric design of the corrugated structure has a regulating effect on millimeter waves: if the waveguide is not corrugated, the millimeter waves will propagate along the inner wall of the waveguide. Because of the propagation along the inner wall, a strong longitudinal surface current will be generated on the waveguide wall, and the flow of current will cause a lot of loss. The corrugation will suppress the longitudinal surface current, the main source of loss will be cut off, and the millimeter waves will also propagate along the center of the waveguide, greatly reducing the loss.

[0039] It should be noted that the deformation of the waveguide 10 due to gravity will increase the loss during waveguide transmission. The closer to the top of the waveguide 10, the greater the gravity and deformation of the waveguide 10. Therefore, this solution designs the spacing between two adjacent corrugated grooves 13 inside the waveguide 10. The spacing between the two corrugated grooves 13 closer to the top of the waveguide 10 is smaller, thereby reducing the loss caused by deformation.

[0040] In one embodiment, see Figure 1 , Figure 2 As shown, it also includes a circulating cooler 14 located above ground level 1. The drill rod also has an inlet channel 15 and a return channel 16, which are connected at one end of the drill bit 11. The other end of the inlet channel 15 has an inlet, which is connected to the outlet of the circulating cooler 14 via a pipe. The other end of the return channel 16 has an outlet, which is connected to the inlet of the circulating cooler 14 via a pipe. The inlet channel 15 is attached to the outer wall of the waveguide 10. The circulating cooler 14 contains coolant. A built-in circulating pump (not shown) pumps the coolant from the outlet of the circulating cooler 14 into the inlet channel 15 through a pipe. The coolant flows along the inlet channel 15 until it reaches the drill bit 11 and enters the beginning of the return channel 16. Finally, it returns to the circulating cooler 14 through a pipe at the end of the return channel 16, thus completing the circulation. This design can cool the waveguide 10 and the drill bit 11. It should be noted that... The pipes connecting the inlet water channel 15 and the return water channel 16 of the circulating cooler 14 are flexible pipes.

[0041] In one embodiment, see Figure 1As shown, it also includes a high-pressure air compressor 17 located on the ground. The outlet of the high-pressure air compressor 17 is connected to the waveguide 10 via a pipe, and the inlet of the high-pressure air compressor 17 is connected to the outlet of the drilling well 2 located on the ground via a pipe. The high-pressure air compressor 17 is existing technology and consists of one or more units. The gas flow velocity of a single unit is between 0.4 m / s and 70 m / s. It can supply compressed gas to the bottom of the drilling well 2 along the waveguide 10, or collect compressed gas from the drilling well 2 from the outlet of the drilling well 2 located on the ground 1 into the high-pressure air compressor 17. The downhole pressure of the drilling well 2 can be controlled by supplying and collecting gas, and the flow of compressed gas can flush out the drill cuttings (affected by millimeter waves) generated by the melting of bedrock from the drilling well 2. It should be noted that the pipe connecting the outlet of the high-pressure air compressor 17 to the waveguide 10 is a flexible pipe.

[0042] It should be noted that the maximum working pressure that the pipe connecting to the high-pressure air compressor 17 needs to withstand is expected to be within 70MPa, and it is usually designed according to the safety level of 105MPa.

[0043] Pipe material selection:

[0044] Rigid pipe: Directly select 105MPa grade alloy steel flanged pipeline pipes that meet API 6A standards.

[0045] Hose: Selected multi-layer steel wire braided fire-resistant hose with a rating of 105MPa conforming to API 16C standard.

[0046] In one embodiment, see Figure 1 As shown, a cartridge dust collector 12 is also provided on the ground 1. The inlet of the cartridge dust collector 12 is connected to the outlet of the drilling well 2 located on the ground 1 through a pipe. The outlet of the cartridge dust collector 12 is connected to the air inlet of the high-pressure air compressor 17 through a pipe. The compressed gas mixed with drill cuttings that rushes out from the drilling well 2 will first enter the cartridge dust collector 12 for filtration before entering the high-pressure air compressor 17.

[0047] It also includes distribution cabinet 5. In this plan, all electrical equipment is powered through distribution cabinet 5 and cable 6 (to avoid clutter, some connections between cable 6 and electrical equipment are not shown).

[0048] This solution also includes a control console (the control console is existing technology and is not shown). All equipment can be controlled through the control console. The control console controls the up and down movement and speed of the drilling winch 4. The dynamic waveguide 7 will move up and down with the drilling winch 4. The control console can control the flow rate of the circulating cooler 14 and the coolant in the cooling water pipe. The control console can also control the speed at which the high-pressure air compressor 17 generates compressed gas and the pressure of the compressed gas in the pipeline.

[0049] In one embodiment, the angle between the drill pipe and the ground is 1.57 ± 0.01 radians.

[0050] Preparation process before using this solution:

[0051] First, using rotary drill pipes, rotary drill bits, and their associated power systems, along with air drill pipes, air drill bits, and their associated air compressors (existing technology, common drilling equipment, not shown), drill to medium-deep or deeper layers of high-hardness, high-temperature, homogeneous bedrock. After reaching deeper bedrock, the drilling speed decreases, drilling becomes more difficult, and the rock cuttings differ. Based on this comprehensive assessment, the process is converted to the millimeter-wave drilling rig used in this solution, drilling to the depth required for ultra-deep, supercritical geothermal energy wells.

[0052] Developing ultra-deep, supercritical geothermal energy is the main application scenario for millimeter-wave deep well drilling platforms. Figure 7 ):

[0053] The heat transfer medium (carbon dioxide or water) flows from injection well 21 through the thermal reservoir and the fractures formed by fracturing ultra-deep and ultra-hot bedrock, and after sufficient heat exchange, it is pumped back to the surface through production well 22, enters turbine generator set 23 to generate electricity, and is connected to the power grid 24 for power transmission. After releasing heat and doing work, the heat transfer medium is pumped back into injection well 21 through circulation system 25 for recycling.

[0054] The angle between the axes of injection well 21 and production well 22 simultaneously satisfies the requirements for both straight waveguide connection and sufficient heat exchange. Low-loss millimeter-wave waveguides require high borehole straightness, and there is currently no practical method for drilling horizontal wells with millimeter waves. The distance between injection well 21 and production well 22 determines the heat exchange capacity that fracturing can generate; it requires both sufficient heat exchange area with good permeability and prevention of direct short circuits. In this design, the drill pipe can be installed vertically or inclined to the ground. If the millimeter-wave drill bit needs to change direction at the bottom of the drilling well, and horizontal penetration into the millimeter-wave waveguide is not required, the drill pipe, originally completely perpendicular to the ground, can be deflected within a small, permissible angle range of less than 0.01 radians. This changes the drill bit direction at the bottom of the well (the wellhead inclination angle is less than 0.01 radians), allowing the millimeter wave to drill horizontally for over 100 meters in ultra-deep wells. This achieves sufficient heat exchange between the heat transfer medium and the ultra-deep, larger-area, ultra-hot rock strata, while meeting the requirements for waveguide straightness (wellhead inclination angle less than 0.01 radians), thereby increasing power. In addition, the thermal energy entering the turbine generator set 23 through the production well 22 via the aerogel-insulated pipe above the production well 22 can reach the target power.

[0055] Heat transfer medium: water or carbon dioxide. Considering factors such as carbon dioxide CCUS (carbon dioxide CCUS is an existing technology, carbon dioxide capture, utilization and storage technology), carbon dioxide oil and gas flooding, carbon dioxide energy storage, supercritical carbon dioxide drying is the most critical final step in the drying of aerogel, the most efficient heat insulation material, and the higher power generation efficiency of supercritical carbon dioxide than that of supercritical water, carbon dioxide is an important choice for heat transfer medium.

[0056] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A millimeter-wave deep well drilling platform, characterized in that, It includes a drilling rig, drill pipe, and rotary tube. The drilling rig and rotary tube are installed above the ground. One end of the drill pipe is connected to the drilling winch on the drilling rig, and the other end extends into the ground through the drilling well. A waveguide concentrator is provided at the top of the drill pipe. The drill pipe includes a drill pipe shell and a waveguide inside the drill pipe shell. One end of the waveguide is connected to the waveguide concentrator, and the other end has an opening and extends into the ground with the drill bit of the drill pipe. A dynamic waveguide is provided on the rotary tube and is movably connected to the waveguide concentrator through the dynamic waveguide. The dynamic waveguide includes a waveguide inlet tube, a tail tube, and several sets of waveguide transmission tubes connected in sequence. One end of the waveguide inlet tube is connected to a gyro tube, and the other end extends away from the gyro tube and is rotatably connected to the inlet of the first set of waveguide transmission tubes. One end of the tail tube is rotatably connected to the outlet of the last set of waveguide transmission tubes, and the other end is connected to a waveguide concentrator. Several millimeter-wave reflecting devices are installed inside the dynamic waveguide.

2. The millimeter-wave deep well drilling platform according to claim 1, characterized in that, The waveguide transmission tube includes a middle tube and a movable tube. The movable tube has an inlet on one side for rotating and installing the middle tube, and an outlet on the other side for rotating and installing the middle tube or the tail tube.

3. The millimeter-wave deep well drilling platform according to claim 2, characterized in that, The millimeter-wave reflecting device includes a reflecting part, which is located at the end of the waveguide inlet tube and both ends of the movable tube. The waveguide inlet tube and the movable tube are connected to the intermediate tube or the tail tube through the reflecting part. The reflecting part is equipped with a reflector that is inclined and faces the inside of the pipe. The reflector is inclined at an angle of 45°. The two pipes connected by the reflecting part are perpendicular to each other.

4. The millimeter-wave deep well drilling platform according to claim 3, characterized in that, The reflector is equipped with a cooling chamber, which is connected to a coolant circulation device. The cooling chamber is in contact with the back of the reflector.

5. A millimeter-wave deep well drilling platform according to claim 1, characterized in that, The inner wall of the waveguide is provided with several corrugated grooves arranged around the central axis of the waveguide. The spacing between the corrugated grooves increases linearly from the top to the bottom without interruption, and the spacing between adjacent corrugated grooves closer to the top of the waveguide is smaller.

6. The millimeter-wave deep well drilling platform according to claim 1, characterized in that, It also includes a circulating cooler located above the ground surface. The drill rod is also equipped with an inlet water channel and a return water channel. The inlet water channel and the return water channel are connected at one end of the drill bit. The other end of the inlet water channel is equipped with an inlet water port, which is connected to the outlet end of the circulating cooler through a pipe. The other end of the return water channel is equipped with an outlet water port, which is connected to the inlet end of the circulating cooler through a pipe. The inlet water channel is attached to the outer wall of the waveguide.

7. The millimeter-wave deep well drilling platform according to claim 1, characterized in that, It also includes a high-pressure air compressor located above the ground. The outlet of the high-pressure air compressor is connected to the internal cavity of the waveguide through a pipe, and the inlet of the high-pressure air compressor is connected to the outlet of the drilling well located on the ground through a pipe.

8. A millimeter-wave deep well drilling platform according to claim 7, characterized in that, Above ground, there is also a cartridge dust collector. The inlet of the cartridge dust collector is connected to the outlet of the drilling well located on the ground through a pipe, and the outlet of the cartridge dust collector is connected to the inlet of the high-pressure air compressor through a pipe.

9. A millimeter-wave deep well drilling platform according to claim 1, characterized in that, The angle between the drill pipe and the ground is 1.57 ± 0.01 radians.

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