High-power underground power generation and high-speed signal transmission device

Abstract

The invention relates to the technical field of petroleum drilling downhole testing instruments, in particular to a high-power downhole power generation and high-speed signal transmission device. The high-power underground power generation and high-speed signal transmission device comprises a pulser short circuit, an upper diversion structure, a central control short circuit, a lower diversion structure and a generator short circuit which are sequentially connected end to end from top to bottom, and a control circuit board and a plurality of wiring troughs are arranged in the central control short circuit to connect the control circuit board with the pulser short circuit and the generator short circuit; the lower diversion structure shunts the short-circuited wires of the generator to the wire grooves, and the upper diversion structure guides the wires in the wire grooves to the pulser for short-circuiting. According to the high-power underground power generation and high-speed signal transmission device, the power transmission capacity of the device for each short circuit is improved through the multiple wire channels; a pulser short circuit and a generator short circuit are arranged at the upper end and the lower end respectively, and the influence of turbulent flow on signal transmission equipment is avoided.

Description

Technical Field

[0001] This invention relates to the field of downhole testing instruments for oil drilling, and in particular to a high-power downhole power generation and high-speed signal transmission device. Background Technology

[0002] Rotary steerable systems integrate drilling, logging, and reservoir engineering technologies. They utilize geological and engineering parameter measurements and drilling-while-drilling control to ensure the drilled wellbore penetrates the reservoir and achieves the optimal position. These systems feature strong drilling-while-drilling identification of oil and gas layers and excellent guidance capabilities, enabling true geological steering. Currently, in rotary steerable tools, after short-circuiting azimuth resistivity, neutron density, azimuth gamma, and acoustic signals, the amount of parameters that need to be uploaded is enormous. To increase the data transmission frequency, more powerful downhole generators and drive motors are required. However, higher output power necessitates replacing the wires with higher-quality ones. Existing rotary steerable tools, due to their structural limitations, cannot provide sufficient installation space for these replacement wires while ensuring their own normal operation. This prevents further increases in downhole generator power and signal transmission frequency. Furthermore, increasing the output power of the generator and drive motor, due to their close proximity, can cause turbulence generated during generator operation, affecting the drive motor and reducing signal accuracy and transmission rate. Therefore, in order to address the above shortcomings, a high-power downhole power generation and high-speed signal transmission device is proposed. Summary of the Invention

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a high-power downhole power generation and high-speed signal transmission device, solving the problem that existing rotary steering tool structures cannot further improve downhole power generation and signal transmission frequency.

[0004] (II) Technical Solution To address the above problems, the present invention provides a high-power downhole power generation and high-speed signal transmission device, comprising: The main body of the device consists of a pulse generator short circuit, a central control short circuit, and a generator short circuit connected end-to-end from top to bottom. A vertically penetrating fluid channel is located at the center of the main body. The upper and lower ends of the central control short circuit have upper and lower guide structures, respectively, with the upper and lower guide structures having the same structure but opposite directions. The pulse generator short circuit contains an impeller and a drive motor, which transmits downhole pulse signals upwards through impeller rotation. The generator short circuit contains a downhole generator; when the downhole fluid passes through the generator, it rotates under the fluid's influence and generates electricity. The central control short circuit contains a control slot, in which a control circuit board is installed and connected to the pulse generator short circuit and the generator short circuit via wires. Multiple wire channels are located on the sidewall of the central control short circuit, connecting the generator short circuit, the pulse generator short circuit, and the control slot. The lower guide short circuit diverts the wires from the generator short circuit to the bottom of each wire channel, while the upper guide short circuit guides the top of the wire channels within the central control short circuit to the pulse generator short circuit.

[0005] Preferably, a protective connector is provided above the short circuit of the pulser.

[0006] Preferably, within the central control short circuit, the output end of the drive motor faces upward, and the impeller is connected to the output end of the drive motor. The drive motor drives the impeller to rotate, controlling the fluid channel to continuously open and close and transmit pulse signals upward.

[0007] Preferably, the upper flow guiding structure includes an upper splitter body and an upper extension head. The top end of the upper extension head is connected to the bottom end of the drive motor, and a vertically penetrating cable channel is provided inside the upper extension head. The top end of the upper splitter body is connected to the bottom end of the upper extension head. Several cable grooves are evenly provided inside the upper splitter body. The bottom end of each cable groove is connected to the control groove of the central control short circuit, and the top end is connected to the bottom end of the cable channel inside the upper extension head.

[0008] Preferably, the top end of the upper extension head is provided with a pin, the top end of the pin is inserted into the bottom end of the drive motor, the top end of the wire is connected to the bottom end of the pin, and the wire is connected to the drive motor through the pin.

[0009] Preferably, the top of the upper distributor body is provided with a flow channel protective cover, and the flow channel protective cover is connected to the upper distributor body by fastening screws.

[0010] Preferably, the upper splitter body has a plurality of wire passages, the bottom end of each wire passage is connected to a wire groove on a central control frame, the top end of the wire passage is connected to an upper extension head, and a sealing connector is provided at the connection between the wire passage and the wire groove; the outer wall of the upper splitter body has a plurality of first sealing rings.

[0011] Preferably, the central control short circuit includes a central control frame and a protective sleeve. The side wall of the central control frame is provided with a mounting groove, and the protective sleeve is sleeved outside the central control short circuit and its position corresponds to the mounting groove.

[0012] Preferably, a gap ring is provided at each of the upper and lower ends of the protective cylinder; and several second sealing rings are provided at the contact positions between the upper and lower ends of the protective cylinder and the central control frame.

[0013] Preferably, the lower section of the central control frame has several wire grooves evenly arranged inside the side wall to connect the control groove to the generator and the pulser.

[0014] Preferably, the lower section of the central control frame has a wiring hole extending from the mounting groove in the side wall, and the outer wall of the central control frame has a connection hole at the connection between the wiring hole and the wire groove, and a sealing plug is provided in the connection hole.

[0015] Preferably, the lower section of the central control frame is provided with a data reading plug, and the bottom end of the data reading plug is connected to the mounting groove through a wire.

[0016] Preferably, the data reading plug has a pressure plate on its outer side, and a sealing cover plate on its outer side.

[0017] Preferably, the sealing cover is fixed to the central control frame by a number of fixing bolts, and the data reading plug is provided with a number of second sealing rings.

[0018] Preferably, the top of the central control frame is provided with a straightening ring.

[0019] (III) Beneficial Effects The high-power downhole power generation and high-speed signal transmission device provided by this invention provides sufficient space for the downhole power generation equipment in the generator short circuit and the signal transmission equipment in the pulser short circuit to accommodate the increased output power of the wires by setting up multiple wire channels in the central control short circuit. This improves the power transmission capacity of the device for each short circuit, enabling the tool structure to meet the conditions for increasing the output power of the downhole power generation equipment and drive motor within the tool. At the same time, by arranging the pulser short circuit and the generator short circuit in the upper and lower sections of the device respectively, the distance between the downhole power generation equipment and the signal transmission equipment is lengthened, reducing the impact of turbulence generated by the generator equipment with increased output power on the signal transmission equipment during operation, and improving the stability and accuracy of the device's transmitted signal frequency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the high-power downhole power generation and high-speed signal transmission device of the present invention; Figure 2 This is a schematic diagram of the pulse generator short-circuit and upper flow guide structure of the high-power downhole power generation and high-speed signal transmission device of the present invention; Figure 3 This is a schematic diagram of the central control short-circuit structure of the high-power downhole power generation and high-speed signal transmission device of the present invention; Figure 4 This is a schematic diagram of the lower guide structure of the high-power downhole power generation and high-speed signal transmission device of the present invention; Figure 5 for Figure 3 A partial view on the left; Figure 6 for Figure 3 A partial view on the right.

[0021] in, Figure 1 Figure A shows the left half of the structure diagram, and Figure B shows the right half of the structure diagram. 1. Protective connector; 2. Pulse generator short circuit; 201. Impeller; 202. Drive motor; 3. Upper guide structure; 301. Pin; 302. Upper extension head; 303. Flow channel protective cover; 304. Fastening screw; 305. Upper splitter body; 306. First sealing ring; 307. Sealing connector; 4. Central control short circuit; 401. Central control frame; 402. Second sealing ring; 403. Gap ring; 404. Centralizing ring; 405. Sealing plug; 406. Protective cylinder; 407. Pressure plate; 408. Data reading plug; 409. Fixing bolt; 410. Sealing cover plate; 5. Lower guide structure; 6. Generator short circuit. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In the description of this invention, it is necessary to understand that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", "top", and "bottom" are based on the orientation or positional relationship shown in the accompanying drawings. The purpose is only to facilitate the description of this invention and to simplify the description. It is not intended to indicate or imply that the component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0024] like Figure 1-6 As shown, the present invention provides a high-power downhole power generation and high-speed signal transmission device, specifically comprising: The main body of the device consists of a pulse generator short-circuit 2, a central control short-circuit 4, and a generator short-circuit 6, connected end-to-end from top to bottom. A vertically penetrating fluid channel is located at the center of the main body. The upper and lower ends of the central control short-circuit 4 are respectively equipped with an upper flow guide structure 3 and a lower flow guide structure 5. During downhole operation, after assembly, the generator short-circuit 6 extends downwards into the well. The downhole fluid flows upwards along the fluid channel of the main body, simultaneously contacting and cooperating with the devices within the generator short-circuit 6 and pulse generator short-circuit 2 as a power source to drive their operation. The generator short-circuit 6 contains a downhole generator. When the downhole fluid passes through the generator, it rotates under the influence of the downhole fluid, generating electricity. The electricity generated by the downhole generator in the generator short-circuit 6 after contacting the downhole fluid is transmitted through wires to the central control short-circuit 4 and pulse generator short-circuit 2 to provide power. During the downhole power generation process, the generator short circuit 6 moves by cutting magnetic field lines under the drive of the downhole fluid to generate electrical energy. At this time, turbulence will be generated downhole. The pulse generator short circuit 2 will be affected by the turbulence during operation. This invention places the pulse generator short circuit 2 and the generator short circuit 6 at opposite ends of the device, increasing the distance between the pulse generator short circuit 2 and the generator short circuit 6, which can effectively reduce the impact of the turbulence generated by the generator short circuit 6 during operation on the operation of the pulse generator short circuit 2.

[0025] The pulse generator short circuit 2 contains an impeller 201 and a drive motor 202. The impeller 201 rotates and transmits downhole pulse signals upwards. The drive motor 202 consumes electricity to rotate the impeller 201. This electricity is generated by the generator short circuit 6 working under the influence of the downhole fluid. Currently, the power generated by the generator short circuit 6 is limited, so the generated power needs to be temporarily stored. When the power is sufficient to control the drive motor 202 to transmit a complete downhole data pulse signal, the drive motor 202 operates, driving the impeller 201 to rotate and send the pulse signal upwards.

[0026] It is important to note that within the central control short circuit 2, the output end of the drive motor 202 faces upwards, and the impeller 201 is connected to the output end of the drive motor 202. The drive motor 202 drives the impeller 201 to rotate, controlling the fluid channel to continuously open and close, transmitting pulse signals upwards. Generally, the fluid channel is blocked above the impeller 201, leaving a gap at the blockage. After the impeller 201 rotates under the drive of the drive motor 202, when the blades on the impeller 201 coincide with the gap, the gap is blocked, and the fluid downhole stops flowing upwards. When the blades on the impeller 201 move away from the gap, the fluid downhole resumes flowing upwards. After repeating this process, the fluid in the fluid channel above the device generates periodic pulses, thus transmitting pulse signals. Ground personnel receive and read these pulse signals, and can then read the information contained within them. During operation, to increase the frequency of upward signal transmission by the device, the speed of the drive motor needs to be increased so that the impeller 201 can transmit more information in the same amount of time. Additionally, more power needs to be provided to the drive motor 207 to shorten the interval between adjacent pulse signal transmissions. Both of these require increasing the power of the downhole generator within the generator short-circuit 6 to ensure sufficient power for the drive motor 207. Generally, to protect the pulse generator short-circuit 2, a protective connector 1 is usually installed above it. The bottom end of the protective connector 1 connects to the pulse generator short-circuit 2 and replaces the short-circuit 2 in connecting to the upper working string. During operation, the connection between the device and the tool string is prone to damage. In this case, only the protective connector 1 needs to be replaced to continue operation; there is no need to repair or replace the pulse generator short-circuit 2, thus reducing maintenance costs and extending the device's service life.

[0027] like Figure 3 , Figure 5 and Figure 6As shown, the central control short circuit 4 has a control slot, in which a control circuit board is installed and connected to the pulse generator short circuit 2 and the generator short circuit 6 via wires. After the rotary guide tool is lowered into the well, it is necessary to measure the geological and engineering parameters of the downhole environment. After the measurement work is completed, the measured data needs to be summarized and converted into pulse signals according to a preset degree. At this time, the electronic components used for data storage and processing are integrated and installed on the control circuit board in the control slot of the central control short circuit 4, and connected to the pulse generator short circuit 2 and the generator short circuit 6 via wires. After measuring the geological and engineering parameters downhole, the control circuit board converts the measured data into pulse signals according to the internally set program, and adjusts the speed of the drive motor 202 in the pulse generator short circuit 2 according to the frequency and wavelength of the pulse signals, so that the frequency and wavelength of the pulse signals generated by the impeller 201 rotating and repeatedly sealing the gaps are consistent with the converted pulse signals. After reading the pulse signals in the well, the operator can obtain the downhole engineering parameters and geological parameters measured by the control circuit board in the tool. Generally, after integrating the measuring tools onto the control circuit board and installing them in the control slot, the integrated control circuit board needs to be encapsulated into a glue block using a glue injection method. Once solidified, the glue block stably fixes the various components on the control circuit board together, preventing them from detaching from the control circuit board due to device vibration during downhole operations, thus providing good shock absorption. Simultaneously, the glue block indirectly increases the contact area between the control circuit board and the device. During operation, the heat generated by the control circuit board can be transferred to the central control short circuit 4 through the glue block. Compared to relying solely on the area of ​​the control circuit board itself for heat transfer, the glue block significantly improves the heat dissipation efficiency of the control circuit board, reducing the risk of overheating and damage. The central control short circuit 4 has multiple wire channels inside its sidewall, which connect the generator short circuit 6 and the pulse generator short circuit 2 to the control slot. By providing multiple wire channels within the side wall of the central control short circuit 4, the wires led out from the control circuit board can be extended through the wire channels to the generator short circuit 6 and the pulse generator short circuit 2 during connection. This protects the wires, effectively preventing them from contacting the downhole fluids inside and outside the device, reducing the erosion of the wires by the downhole fluids, extending the service life of the device, and improving the stability of the device.

[0028] After improving the power generation efficiency within generator short-circuit 6, to smoothly transfer power from generator short-circuit 6 to central control short-circuit 4 and pulser short-circuit 2, the wires within the device need to be replaced with those of higher load capacity and conductivity, inevitably increasing the wire diameter. Generally, during the process of guiding power to central control short-circuit 4 and pulser short-circuit 2, sufficient power needs to be supplied to pulser short-circuit 2 as a power source to ensure it can increase the frequency and speed of signal transmission. This typically requires approximately 12 wires connected to central control short-circuit 4. However, existing spiral guide tools, due to their structural limitations, cannot provide sufficient installation space for the wires, restricting the improvement of the signal transmission frequency and speed of pulser short-circuit 2. With multiple wire channels installed in the side wall of central control short-circuit 4, as the performance of pulser short-circuit 2 improves, when the space of a single wire channel is insufficient for wire arrangement, the wires can be diverted to various wire channels, providing sufficient space for wire installation and layout. In practical work, to ensure sufficient strength of the central control short circuit 4, the number of wire channels should be minimized. Under current working requirements, when the number of wire channels is two, the space is sufficient for the generator short circuit 6 to generate 1500W of power. At this point, the power provided by the generator short circuit 6 is sufficient for the pulse generator short circuit 2 to achieve a transmission rate of 5bit / s at a working depth of 3000 meters, meeting the power needs of most current downhole operations. As working requirements gradually increase, to further improve the power generation within the generator short circuit 6 and the signal transmission speed within the pulse generator short circuit 2, the number of wire channels can be increased synchronously with the working needs. However, while increasing the number of wires, the structural strength of the central control short circuit 4 itself must also be considered, and the material of the central control short circuit 4 may be replaced according to the actual situation.

[0029] The central control short circuit 4 includes a central control frame 401 and a protective sleeve 406. The central control frame 401 has a mounting groove on its side wall, and the protective sleeve 406 is fitted over the central control short circuit 4 and its position corresponds to the mounting groove. The central control frame 401 serves as the main body of the central control short circuit 4. The mounting groove is located on the side wall of the central control frame 401. When installing the control circuit board, it is simply placed in the mounting groove, and the wiring on the control circuit board is connected to the wires in the wire channel to complete the installation. The protective sleeve 406 primarily protects the control slot and the control circuit board within it, preventing the control circuit board from loosening and falling into the well during downhole operation. It also isolates the control slot from the external downhole environment, preventing downhole fluid from flowing into the control slot and contacting the wires and control circuit board, thus preventing short circuits. To further improve the sealing performance between the protective cylinder 406 and the central control frame 401, a gap ring 403 is provided at each of the upper and lower ends of the protective cylinder 406. After the protective cylinder 406 is installed and tightened, the gap ring 403 and the protective cylinder 406 squeeze together to clamp the gap between the protective cylinder 406 and the central control frame 401, preventing downhole fluid from flowing into the control slot from the connection point. At the same time, several second sealing rings 402 are provided at the contact positions between the upper and lower ends of the protective cylinder 406 and the central control frame 401. With the cooperation of the gap rings 403, they can clamp and fill the gap between the protective cylinder 406 and the central control frame 401, thereby completely sealing the control slot.

[0030] The lower section of the central control frame 401 has several wire grooves evenly distributed within its sidewall, connecting the control slot to the generator short-circuit 6 and the pulse generator short-circuit 2. These wire grooves are located within the central control frame 401. After the control circuit board is installed in the control slot, wires are threaded through the wire grooves to connect to the control circuit board and extend along the wire grooves to the generator short-circuit 6 and the pulse generator short-circuit 2, transmitting the power generated by the generator short-circuit 6 to the control slot and pulse generator short-circuit 2 to provide power to the device. The lower section of the central control frame 401 has wiring holes extending from the mounting slot. The outer wall of the central control frame 401 has connection holes at the junction of the wiring holes and the wire grooves, with sealing plugs 405 installed in these connection holes. When installing the control circuit board, the wiring of the control circuit board is threaded through the wiring holes and connected to the wires in the wire grooves within the connection holes. Silicone grease is then injected into the connection holes, and the sealing plugs 405 are fixed in place to complete the installation of the control circuit board. If the control circuit board malfunctions during operation and needs to be disassembled for repair or replacement, simply remove the sealing plug 405 and disconnect the wires from the control circuit board wiring. The control circuit board can then be removed from the control slot without having to remove all the wires from the wire slot, thus reducing the difficulty of disassembling the control circuit board.

[0031] It should be noted that a data reading plug 408 is provided on the lower outer wall of the central control frame 401. The bottom end of the data reading plug 408 is connected to the mounting slot via a wire. After the wire of the data reading plug 408 is connected to the mounting slot, it is connected to the control circuit board inside the mounting slot. After the device is removed, the data reading device and the data reading plug 408 can be directly connected via a data cable to directly read the data recorded in the control circuit board without disassembling the control circuit board, thus reducing the difficulty of operating the device and simplifying the operation process.

[0032] A pressure plate 412 is provided on the outside of the data reading plug 408, and a sealing cover 410 is provided on the outside of the pressure plate 412. The pressure plate 412 and the sealing cover 410 seal the data reading plug 408 to prevent downhole fluid from flowing into the data reading plug 408, which could cause malfunction of the data reading plug 408 or even short circuit of the control circuit board. The sealing cover 410 is fixed to the central control frame 401 by several fixing bolts 409, and several second sealing rings 402 are provided on the outside of the data reading plug 408. The fixing bolts 409 press the sealing cover 410 tightly and squeeze the second sealing rings 402 to seal the gaps around the data reading plug 408, preventing downhole fluid from seeping into the data reading plug 408 from the gaps at the connection, and further improving the sealing performance of the device.

[0033] In addition, a straightening ring 404 is provided at the top of the central control frame 401. The straightening ring 404 is made of a material with good elasticity, such as rubber or spring. After the central control short circuit 4 is connected to the pulse short circuit 2, the straightening ring 404 is squeezed and, under its own elasticity, pushes the central control frame 401 to the middle position, thereby playing the role of straightening the central control frame 401.

[0034] The upper guide structure 3 and the lower guide structure 5 have the same structure but opposite directions. The lower guide short circuit 5 diverts the wires from the generator short circuit 6 to the bottom of each wire channel. The upper guide short circuit 3 guides the top of the wire channel in the central control short circuit 4 to the pulse generator short circuit 2. The upper guide structure 3 and the lower guide structure 5 are used to guide and protect the wires in the central control short circuit 4. When the central control short circuit 4 is connected to the pulse generator short circuit 2 and the generator short circuit 6, the wires are protected at the connection point to prevent the downhole fluid from eroding the wires and causing power and signal transmission failures in the device. At the same time, the wires are guided to the planned route to improve the stability of the device operation.

[0035] The upper flow guiding structure 3 includes an upper diverter body 305 and an upper extension head 302. The upper diverter body 305 serves as the main body of the upper flow guiding structure 3, primarily guiding the conductors extending from the control short circuit 4 to the pulse generator short circuit 2, while also protecting the conductors to prevent them from contacting the downhole fluid in the fluid channel. The top of the upper extension head 302 is connected to the bottom of the drive motor 202, and a vertically penetrating cable channel is provided inside the upper extension head 302. The top of the upper diverter body 305 is connected to the bottom of the upper extension head 302, and several cable grooves are evenly arranged inside the upper diverter body 305. The bottom of each cable groove is connected to the control groove of the central control short circuit 4, and the top is connected to the bottom of the cable channel inside the upper extension head 302. After the upper shunt body 305 is installed between the pulse generator short circuit 2 and the central control short circuit 4, the size of the upper shunt body 305 is insufficient to connect the central control short circuit 4 to the bottom end of the drive motor 202 inside the pulse generator short circuit 2. At this time, the upper extension head 302 is installed between the bottom end of the drive motor 202 and the upper shunt body 305 as an extension of the upper shunt body 305. It works with the shunt body 305 to protect the wires from the central control short circuit 4 to the bottom end of the drive motor 202.

[0036] It should be noted that the top of the upper extension head 302 is provided with a pin 301. The top of the pin 301 is inserted into the bottom of the drive motor 202. The top of the wire is connected to the bottom of the pin 301 and then to the drive motor 202 through the pin 301. Connecting the bottom of the drive motor 202 to the wire through the pin 301 reduces the amount of wiring work during installation and lowers the installation difficulty of the device. At the same time, connecting the wire to the drive motor 202 through the pin mechanism avoids the problem of circuit breakage caused by multiple wires being connected to the bottom of the drive motor 202 at the same time, thus improving the safety and stability of the device during operation. The upper splitter body 305 has several wire passages. The bottom of each wire passage is connected to a wire groove on a central control frame 401. The top of the wire passage is connected to the upper extension head 302. The upper splitter body 305 guides the wires extending from the central control frame 401 into the upper extension head 302 through the wire passages, and then connects to the bottom of the drive motor 202 through the cable passages in the upper extension head 302. A sealing connector 307 is provided at the connection between the wire passage and the wire groove. The material of the sealing connector 307 is the same as that of common sealing rings. It is made of elastic material such as rubber. After the wire extends from the central control frame 401, it extends into the upper distributor body 305 through the sealing connector 307. Under its own elasticity, the sealing connector 307 will shrink inward to fit close to the wire and seal the gap around the wire. This prevents the fluid in the well from seeping in from the gap at the connection and flowing along the wire to the wiring of the drive motor 202, thus preventing the device from short-circuiting during downhole operation.

[0037] In addition, the upper diverter body 305 is provided with a flow channel protective cover 303 at its top, and the flow channel protective cover 303 is connected to the upper diverter body 305 by fastening screws 304. While protecting the wires, the upper diverter body 305 and the upper extension head 302 will occupy part of the space in the fluid channel inside the device. At this time, the flow velocity of the downhole fluid will increase when it passes through the upper diverter body 305. The protective cover 303 protects the section of the inner wall where the flow velocity increases significantly, replacing the inner wall of the pulser short circuit 2 which is eroded by the downhole fluid, reducing the wear and tear on the pulser short circuit 2 during operation, and extending the service life of the device.

[0038] The outer wall of the upper diverter body 305 is provided with a plurality of first sealing rings 306. The first sealing rings 306 fill and seal the gap between the upper diverter body 305 and the inner wall of the pulser short-circuit 2, preventing the downhole fluid from eroding the connection between the upper diverter body 305 and the pulser short-circuit 2, which would cause the device connection to become unstable.

[0039] like Figure 4 As shown, the structure within the lower guide structure 5 is identical to that of the upper guide structure 3, but with the installation direction reversed. It includes a lower shunt body 501 and a lower extension head 302. The bottom end of the lower extension head 302 is connected to the top end of the generator short circuit 6, and the top end is connected to the bottom end of the lower shunt body 501. The lower extension head 502 has a through-cable channel. The lower shunt body 501 has several wire passages. The top end of each wire passage connects to the cable groove of the central control short circuit 4, and the bottom end connects to the top end of the lower extension head 502, thereby diverting the wires extending from the generator short circuit 6 to the various wire grooves within the central control short circuit 4.

[0040] The high-power downhole power generation and high-speed signal transmission device provided by this invention can provide sufficient space for improving the pulse signal transmission speed and downhole power generation, enabling the pulse signal transmission device to obtain sufficient power, while reducing the impact of turbulence generated by the downhole power generation device on the pulse signal transmission device. The specific operation process of the device is as follows: Step 1: Connect all the short circuits according to the structure of the device, and install the control circuit board in the control slot after assembly. During this process, it is necessary to select the appropriate type of wire based on the generator's power output and the power required by the drive motor within the pulse generator short circuit. Thread the wires into the wire slots to connect the control circuit board to the drive motor and the downhole generator. When threading the wires into the wire slots, the wires connected to the top of the downhole generator can be diverted to each wire slot to ensure that each wire has sufficient installation space.

[0041] Step 2: Deploy the device into the target well for parameter measurement. At this time, the fluid in the well flows upwards along the fluid channel. The fluid contacts the downhole generator, causing it to cut magnetic field lines and generate electrical energy. This electrical energy is transmitted through wires to the central control short circuit and the pulse generator short circuit, providing power to the control circuit board and drive motor. The measuring tools within the control circuit board then perform data measurements.

[0042] Step 3: The control circuit board converts the measured data into pulse signals and controls the pulse generator to short-circuit and send pulse signals to the wellhead. During this process, the short-circuited pulse generator drives the internal drive motor to rotate the impeller, thereby controlling the continuous opening and closing of the fluid channel. When the fluid channel is open, the fluid flows upward; when the fluid channel is closed, the fluid stops flowing. This process repeats, generating pulse signals within the well. The control circuit board controls the speed of the drive motor according to the required signal content, ensuring that the wavelength and frequency of the pulse signal match the signal to be transmitted. Step 4: The staff receives the pulse signal from inside the well and reads the information transmitted in the signal.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-power downhole power generation and high-speed signal transmission device, characterized in that, include: The main body of the device consists of a pulse generator short circuit (2), a central control short circuit (4), and a generator short circuit (6) connected end to end from top to bottom. The main body of the device has a vertically penetrating fluid channel in the center. The upper and lower ends of the central control short circuit (4) are respectively provided with an upper flow guide structure (3) and a lower flow guide structure (5). The upper flow guide structure (3) and the lower flow guide structure (5) have the same structure but opposite directions. The pulse generator short circuit (2) is provided with an impeller (201) and a drive motor (202), and the impeller (201) rotates to transmit downhole pulse signals upward. The generator short circuit (6) is provided with a downhole generator. The downhole generator will rotate and generate electricity under the drive of the downhole fluid; the central control short circuit (4) is provided with a control slot, and the control circuit board is installed in the control slot and connected to the pulse short circuit (2) and the generator short circuit (6) through wires; the side wall of the central control short circuit (4) is provided with multiple wire channels, and the wire channels connect the generator short circuit (6) and the pulse short circuit (2) to the control slot; the lower guide short circuit (5) diverts the wires led out from the generator short circuit (6) to the bottom of each wire channel, and the upper guide short circuit (3) guides the top of the wire channel in the central control short circuit (4) to the pulse short circuit (2).

2. The high-power downhole power generation and high-speed signal transmission device according to claim 1, characterized in that, A protective connector (1) is provided above the short circuit (2) of the pulse generator.

3. The high-power downhole power generation and high-speed signal transmission device according to claim 1, characterized in that, Within the short circuit (2) of the pulse generator, the output end of the drive motor (202) is upward, and the impeller (201) is connected to the output end of the drive motor (202). The drive motor (202) drives the impeller (201) to rotate, controlling the fluid channel to continuously open and close and transmit pulse signals upward.

4. The high-power downhole power generation and high-speed signal transmission device according to claim 1, characterized in that, The upper flow guiding structure (3) includes an upper splitter body (305) and an upper extension head (302). The top end of the upper extension head (302) is connected to the bottom end of the drive motor (202), and a vertically penetrating cable channel is provided inside the upper extension head (302). The top end of the upper splitter body (305) is connected to the bottom end of the upper extension head (302), and several cable grooves are evenly provided inside the upper splitter body (305). The bottom end of each cable groove is connected to the control groove of the central control short circuit (4), and the top end is connected to the bottom end of the cable channel inside the upper extension head (302).

5. The high-power downhole power generation and high-speed signal transmission device according to claim 4, characterized in that, The top end of the upper extension head (302) is provided with a pin (301). The top end of the pin (301) is inserted into the bottom end of the drive motor (202). The top end of the wire is connected to the bottom end of the pin (301) and connected to the drive motor (202) through the pin (301).

6. The high-power downhole power generation and high-speed signal transmission device according to claim 5, characterized in that, The upper distributor body (305) is provided with a flow channel protective cover (303) at the top, and the flow channel protective cover (303) is connected to the upper distributor body (305) by fastening screws (304).

7. The high-power downhole power generation and high-speed signal transmission device according to claim 6, characterized in that, The upper splitter body (305) is provided with several wire passages. The bottom end of each wire passage is connected to the wire groove on a central control short circuit (4), and the top end of the wire passage is connected to the upper extension head (302). A sealing connector (307) is provided at the connection between the wire passage and the wire groove. Several first sealing rings (306) are provided on the outer wall of the upper splitter body (305).

8. The high-power downhole power generation and high-speed signal transmission device according to claim 1, characterized in that, The central control short circuit (4) includes a central control frame (401) and a protective sleeve (406). The central control frame (401) has an installation groove on its side wall. The protective sleeve (406) is fitted outside the central control short circuit (4) and its position corresponds to the installation groove.

9. The high-power downhole power generation and high-speed signal transmission device according to claim 8, characterized in that, The upper and lower ends of the protective cylinder (406) are respectively provided with gap rings (403); the upper and lower ends of the protective cylinder (406) are provided with several second sealing rings (402) at the contact positions with the central control frame (401).

10. The high-power downhole power generation and high-speed signal transmission device according to claim 8, characterized in that, The lower side wall of the central control frame (401) is uniformly provided with several wire grooves to connect the control groove to the generator short circuit (6) and the pulse generator short circuit (2).

11. The high-power downhole power generation and high-speed signal transmission device according to claim 10, characterized in that, The lower section of the central control frame (401) has a wiring hole extending from the mounting groove in the side wall. The outer wall of the central control frame (401) has a connection hole at the connection between the wiring hole and the wire groove. A sealing plug (405) is provided in the connection hole.

12. The high-power downhole power generation and high-speed signal transmission device according to claim 10, characterized in that, The lower section of the central control frame (401) is provided with a data reading plug (408), and the bottom end of the data reading plug (408) is connected to the mounting groove through a wire.

13. The high-power downhole power generation and high-speed signal transmission device according to claim 12, characterized in that, The data reading plug (408) has a pressure plate (412) on its outer side, and a sealing cover plate (410) is provided on the outer side of the pressure plate (412).

14. The high-power downhole power generation and high-speed signal transmission device according to claim 13, characterized in that, The sealing cover plate (410) is fixed to the central control frame (401) by a number of fixing bolts (409), and the data reading plug (408) is provided with a number of second sealing rings (402).

15. The high-power downhole power generation and high-speed signal transmission device according to claim 14, characterized in that, The top of the central control frame (401) is provided with a straightening ring (404).

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