4000-meter deep hole multifunctional modular intelligent directional drilling machine and directional drilling method

Abstract

The invention discloses a 4000-meter deep hole multifunctional modular intelligent directional drilling machine and a directional drilling method, and relates to the technical field of drilling equipment for soil layers or rocks. The 4000-meter deep hole multifunctional modular intelligent directional drilling machine comprises a power vehicle, a multi-angle drilling mechanism, a drilling tool mechanism and a cloud drilling control platform. The drilling tool mechanism provided with the well logging system is matched with the cloud drilling control platform, working parameters of the drilling tool mechanism are monitored in real time through the well logging system, and drilling track parameters of the drilling tool mechanism are obtained in real time and transmitted to the cloud drilling control platform; intelligent analysis is carried out through the cloud drilling control platform, the drilling track of the drilling tool mechanism is accurately regulated and controlled, the system automatically optimizes drilling parameters, accurately calculates track deviation and carries out automatic deviation correction, it is ensured that the actual drilling track of the drilling tool mechanism is kept consistent with the preset drilling track, and therefore the orientation accuracy during deep drilling is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of soil or rock drilling equipment, in particular to a 4000-meter-class deep hole multifunctional modular intelligent directional drilling rig and a directional drilling method using the 4000-meter-class deep hole multifunctional modular intelligent directional drilling rig. Background Art

[0002] Drilling is the most commonly used survey technique in engineering investigations. As geological exploration gradually expands into deeper strata and complex structural zones, existing directional drilling rigs face multiple technical bottlenecks. For drilling missions reaching depths of 4,000 meters, existing directional drilling rigs are unable to meet the demand. They are limited in functionality, unable to address diverse drilling requirements, and operate at shallower strata. Furthermore, as drilling depth increases, it becomes increasingly difficult to obtain information about the extreme geological conditions and downhole drilling data. Consequently, drilling trajectory control accuracy is poor, and the rig's autonomous control capabilities are limited.

[0003] At present, for drilling construction in deep formations, the industry has proposed a drilling method based on measurement while drilling technology. This method makes a preliminary judgment on the deep formation structure and rock properties being drilled by monitoring, recording and extracting effective information during the drilling process.

[0004] For example, a Chinese invention patent application with publication number CN116624137A discloses a method and related device for processing while-drilling data of deep rock masses. The method includes obtaining the torque, pressure, rotation speed and drilling speed of a drill rod during drilling into the deep rock mass; and performing median filtering on the torque, pressure, rotation speed and drilling speed respectively to obtain filtered torque, filtered pressure, filtered rotation speed and filtered drilling speed; then determining a tested rock strength index of the deep rock mass based on the filtered torque, the filtered pressure, the filtered rotation speed and the filtered drilling speed; and determining the uniaxial compressive strength of the deep rock mass based on the standard uniaxial compressive strength, the standard rock strength index and the tested rock strength index, thereby realizing the determination of the uniaxial compressive strength of the deep rock mass through while-drilling measurement of the drill rod during drilling into the deep rock mass.

[0005] For example, a Chinese invention patent application with publication number CN117908118A discloses a method and related device for identifying rock discontinuity surfaces based on coda waves of while-drilling seismic waves. The method includes obtaining seismic wave signals generated during the process of a drill rod drilling into the rock mass to be identified, and determining a first coda wave signal and a second coda wave signal separated by a preset source spacing from the seismic wave signal; determining the propagation velocity of the while-drilling seismic coda wave in the local rock mass corresponding to the preset source spacing based on the first coda wave signal and the second coda wave signal; identifying the discontinuity surface of the rock mass to be identified based on the propagation velocity, and accurately determining the propagation velocity of the while-drilling seismic coda wave in the local rock mass through coda wave analysis, so that the discontinuity surface of the rock mass can be accurately identified through the propagation velocity.

[0006] At present, in the research on drilling data detection while drilling, including the above-mentioned patent application, the drilling parameters obtained are mostly monitoring of the drilling rig oil pressure. There is a lack of direct measurement of drilling parameters and downhole data. Therefore, it is impossible to accurately control the drilling trajectory, and it is impossible to achieve high-precision directional drilling when drilling in deep formations of 4,000 meters or above. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a 4000-meter-class deep-hole multifunctional modular intelligent directional drilling rig that can effectively improve the drilling accuracy of deep formations.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is: a 4000-meter-class deep-hole multifunctional modular intelligent directional drilling rig, including a power car, a multi-angle drilling mechanism, a drilling tool mechanism and a cloud-based drilling control platform; the power car is used to transport the multi-angle drilling mechanism and the drilling tool mechanism; the multi-angle drilling mechanism includes a driving power head, a rotating chassis, a construction main beam and an angle adjustment support rod, the driving power head is fixedly arranged on the top of the construction main beam and is driven and connected to the drilling tool mechanism, the rotating chassis can be rotatably arranged at the bottom of the construction main beam, and the angle adjustment support rod is tilted and supported between the construction main beam and the ground; the drilling tool mechanism includes a drill rod assembly, a guide module, a rope coring core barrel, a drill bit module and a logging system, the driving power head is driven and connected to the drill bit module through a drill rod assembly composed of multiple detachable drill rods, the rope coring core barrel is movably arranged in the guide module, the logging system is arranged between the drill rod assembly and the drill bit module, and the guide module is arranged between the logging system and the drill bit module; data signals are transmitted between the cloud-based drilling control platform and the logging system.

[0009] As an improvement to the above solution: the logging system is a packaged short section that integrates multi-dimensional sensing detection elements, data storage modules, transmission modules, and power supply modules; the multi-dimensional sensing detection elements include at least two of optical sensors, acoustic wave sensors, resistivity sensors, and electromagnetic wave sensors.

[0010] As an improvement of the above solution: it also includes a drilling mechanism, which includes a mechanical arm installed on the construction main beam for disassembling and assembling drill rods, and a rod changing box installed on the rotating chassis for storing drill rods.

[0011] As an improvement to the above solution: the power vehicle is a tracked power vehicle, and the tracked power vehicle is provided with a reinforcement component for supporting the construction main beam of the multi-angle drilling mechanism.

[0012] As an improvement to the above solution: the angle adjustment support rod is a hydraulic support rod with adjustable length.

[0013] The present invention also discloses a directional drilling method, which uses the 4000-meter-class deep hole multifunctional modular intelligent directional drilling rig described above to perform drilling work, and is carried out according to the following steps: Step 1: Use a power vehicle to transport all the directional drilling rig equipment to the location where drilling work is required and install all the equipment; Step 2: Fix the angle adjustment support rod on the bottom surface and support the construction main beam. Adjust the initial drilling direction by rotating the rotating chassis and adjusting the length of the angle adjustment support rod; Step 3: Set the initial drilling parameters, start the drive head to provide the drilling tool with rotation speed and torque, and start drilling; Step 4: As the drilling distance increases, when a drill rod reaches a certain depth, the drill rod is taken from the rod changing box by the mechanical arm of the drilling mechanism and clamped to the borehole for installation. When the drill needs to be lifted, the drill rod is removed by the mechanical arm and stored in the rod changing box; Step 5: As the drilling distance increases, the core gradually accumulated in the rope coring core barrel is continuously captured out of the borehole through the rope coring process; Step 6: During the drilling process, the logging system of the drilling tool mechanism records the geological data of the formation where the drilling tool mechanism is located, wellbore trajectory parameters, drilling tool status, and drilling parameters in real time, and transmits the recorded drilling data to the cloud drilling control platform; Step 7: The cloud-based drilling control platform analyzes the received drilling data and regulates the drilling work; Step 8. Continue drilling according to the above steps until directional and continuous coring work is completed at a depth of 4,000 meters.

[0014] As an improvement to the above scheme: in step six, the geological data of the formation recorded by the logging system include natural gamma, resistivity, density and neutron porosity, and acoustic time difference; the wellbore trajectory parameters recorded by the logging system include well inclination, azimuth, and tool face angle; the drill tool status recorded by the logging system includes drilling pressure, drilling speed, torque, and vibration; and the drilling parameters recorded by the logging system include downhole temperature, mud parameters, and annular pressure.

[0015] As an improvement to the above scheme: in step seven, the cloud-based drilling control platform adjusts the drilling working parameters in real time based on the received formation parameters, drilling pressure data, torque data, drilling speed data, drill bit wear data, drilling fluid flow data, and pump pressure data; the cloud-based drilling control platform calculates the trajectory deviation and the force required for correction based on the received real-time drilling trajectory data, and controls the guidance module to adjust the drilling trajectory; the cloud-based drilling control platform predicts drilling risks and issues early warnings based on the received downhole pressure data, drill tool status data, and downhole gas composition.

[0016] The beneficial effects of the present invention are: 1. The present invention cooperates with a cloud-based drilling control platform by providing a drilling tool mechanism equipped with a logging system. The logging system monitors the working parameters of the drilling tool mechanism in real time, obtains the drilling trajectory parameters of the drilling tool mechanism in real time and transmits them to the cloud-based drilling control platform. The cloud-based drilling control platform performs intelligent analysis and precisely adjusts the drilling trajectory of the drilling tool mechanism. The system automatically optimizes the drilling parameters, accurately calculates the trajectory offset and performs automatic deviation correction to ensure that the actual drilling trajectory of the drilling tool mechanism is consistent with the preset drilling trajectory, thereby effectively improving the directional accuracy during deep drilling.

[0017] 2. The present invention uses a logging system to monitor the geological information of deep formations during drilling in real time, and can analyze the downhole pressure, drill tool status and gas composition of the formation where the drill tool mechanism is located during drilling. The system determines whether the downhole working environment parameters deviate from the normal range, thereby being able to warn of risks such as blockage, leakage and drill tool fatigue, effectively improving the safety of drilling construction.

[0018] 3. The present invention cooperates with the construction main beam and the rotating chassis in the multi-angle drilling mechanism; when the angle adjustment support rod supports the construction main beam, the inclination angle of the construction main beam can be adjusted by adjusting its own length, so that the drilling angle can be adjusted in the vertical direction; the rotating chassis can adjust the drilling angle in the horizontal direction by its own rotation; the present invention can adjust the initial drilling angle in multiple directions, thereby providing a wider range of initial angles for drilling construction.

[0019] 4. The present invention controls the length of the drill rod assembly during the drilling process by setting up a drilling mechanism. As the drilling depth increases, the mechanical arm of the drilling mechanism can automatically grab the drill rod in the rod exchange box and extend the drill rod assembly, thereby effectively reducing the intensity of manual labor and improving drilling operation efficiency.

[0020] 5. The present invention uses the logging system in the drilling tool mechanism to monitor the working parameters and environmental parameters in real time during drilling construction, and utilizes a multi-dimensional sensing detection element that integrates multiple sensors to monitor different environmental parameters such as optics, acoustic waves, resistivity, and electromagnetic waves. It can accurately acquire and transmit data in 4,000-meter-level formations, and through intelligent analysis of the cloud-based drilling control platform, it can control the coring and drilling work of the drilling tool mechanism in real time, thereby ensuring the safe and efficient implementation of the drilling work.

[0021] 6. The present invention can support the split transportation and rapid on-site assembly of the equipment. The movement and layout of the equipment are relatively simple. It has a large stratum depth, high drilling construction efficiency, and a wide initial drilling angle. It can achieve high-precision directional and continuous coring. The drilling mode can be quickly changed according to the needs of different drilling tasks, realizing multi-task adaptation from resource exploration, scientific sampling to engineering detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the 4000-meter-class deep-hole multifunctional modular intelligent directional drilling rig in the present invention; Figure 2 This is a schematic diagram of the structure of the 4000-meter-class deep-hole multifunctional modular intelligent directional drilling rig in the present invention; Figure 3 This is a workflow diagram of the directional drilling method of the present invention.

[0023] The following are marked in the figure: 100-power vehicle, 200-multi-angle drilling mechanism, 210-driving power head, 220-rotating chassis, 230-construction main beam, 240-angle adjustment support rod, 300-drilling tool mechanism, 310-drill rod assembly, 320-guide module, 330-rope coring core barrel, 340-drill bit module, 350-logging system, 400-driving mechanism, 410-mechanical arm, 420-rod changing box. DETAILED DESCRIPTION

[0024] To facilitate understanding of the present invention, the present invention is further described below with reference to the accompanying drawings.

[0025] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "front", "rear", "left", "right", "up", "down", and "inside" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of description. They do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0026] Throughout this specification, unless otherwise specified, the terms used herein should be understood as commonly used in the art; therefore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention belongs; in the event of any conflict, this specification takes precedence. Unless otherwise specified, all raw materials, instruments, and equipment used in this invention can be purchased commercially or prepared by existing methods.

[0027] like Figure 1 and Figure 2 As shown, the 4,000-meter-class deep-hole multifunctional modular intelligent directional drilling rig disclosed in the present invention consists of a power vehicle 100, a multi-angle drilling mechanism 200, a drilling tool mechanism 300, a tripping mechanism 400, and a cloud-based drilling control platform. The power vehicle 100 is used to transport the drilling rig equipment in separate parts; the multi-angle drilling mechanism 200 is used to adjust the initial drilling angle; the drilling tool mechanism 300 is used to perform drilling operations, coring during drilling operations, and to monitor drilling parameters and formation environmental parameters in real time; the tripping mechanism 400 is used to control the length of the drill rod of the drilling tool, extending the length of the drill rod assembly 310 by assembling the drill rod, or shortening the length of the drill rod assembly 310 by disassembling the drill rod; and the cloud-based drilling control platform is used to receive monitoring data transmitted by the drilling tool mechanism 300 and analyze the monitoring data to adjust the operating parameters of the drilling tool mechanism 300.

[0028] Specifically, such as Figure 1 and Figure 2 As shown, in order to adapt to the complex construction and transportation environment, the power vehicle 100 used in the present invention is a crawler-type power vehicle equipped with a travel motor and tracks. The crawler-type power vehicle has the characteristics of strong passability and high terrain adaptability, and can be used for transportation work during construction in complex mountainous areas. In addition, reinforcement components can be set on the crawler-type power vehicle. After the equipment is installed, the construction main beam 230 in the multi-angle drilling mechanism 200 can be reinforced by the reinforcement components. For example, the reinforcement components can be supported by support rods, support frames, etc., or tightened by tie bars, ropes, etc., and the reinforcement components are fixed to the crawler-type power vehicle. The crawler-type power vehicle provides a stable and flat fixed foundation for the reinforcement components.

[0029] Specifically, such as Figure 1 and Figure 2 As shown, the multi-angle drilling mechanism 200 used in the present invention is composed of a driving power head 210, a rotating chassis 220, a construction main beam 230 and an angle adjustment support rod 240. The driving power head 210 adopts an energy-saving and efficient electric driving power head with high torque and high speed, which can effectively overcome the friction resistance of the drill rod and the drilling resistance of hard formations during deep drilling. When the equipment is installed, the construction main beam 230 is vertically fixed above the location where the hole is to be drilled, and the driving power head 210 is fixed to the top of the construction main beam 230. The output end of the driving power head 210 passes downward through the construction main beam 230 and is driven and connected to the drill rod assembly 310 in the drilling tool mechanism 300. The driving power head 210 drives the drilling tool mechanism 300 to perform drilling work. The construction main beam 230 serves as the main support structure of the equipment, fixing the equipment above the drill hole. The construction main beam 230 is supported by an angle adjustment support rod 240. The angle adjustment support rod 240 is tilted and supported between the construction main beam 230 and the ground. The angle adjustment support rod 240 can be extended and retracted to adjust its own length, thereby adjusting the support length of the construction main beam 230, and then adjusting the angle of the construction main beam 230 in the vertical direction, so that the initial drilling angle can be adjusted in the range of 0 to 90 degrees in the vertical direction. The angle adjustment support rod 240 can be a hydraulic support rod or a cylinder support rod. The rotating chassis 220 is installed at the bottom of the construction main beam 230. The rotating chassis 220 can rotate in the horizontal direction, so that the initial drilling angle can be adjusted in the range of 0 to 360 degrees in the horizontal direction. Through the cooperation of the above-mentioned rotating chassis 220 and the angle adjustment support rod 240, the present invention can achieve multi-directional adjustment of the initial drilling angle.

[0030] Specifically, such as Figure 1 and Figure 2As shown, the drilling tool mechanism 300 employed in the present invention comprises a drill rod assembly 310, a guide module 320, a wireline coring core barrel 330, a drill head module 340, and a logging system 350. The drill rod assembly 310 serves as the connecting component between the drive unit 210 and the drill head module 340. It consists of multiple detachably connected drill rods. By controlling the number of drill rods, the length of the drill rod assembly 310 can be adjusted to suit the drilling depth. The drill head module 340 is used to directly drill the hole. Drill bits of various specifications and types can be selected for use in the drill head module 340 according to actual drilling requirements. The drill rod assembly 310 and the guide module 320 are connected by a screw motor. The guide module 320 is used to guide and control the drilling direction of the drill head module 340. The guide module 320 can utilize a cylindrical guide tube commonly used in drilling operations. The radial bending of the guide tube changes the drilling direction of the drill head module 340. The rope coring core barrel 330 uses the rope coring process to continuously coring the cores dug out during drilling work. The rope coring core barrel 330 is a cylindrical structure arranged in the guide module 320. A grabbing component pulled by a rope is provided in the rope coring core barrel 330. The grabbing component is used to grab the rocks and soil entering the rope coring core barrel 330, and then extract them out of the borehole through the rope. The logging system 350 adopts a modular package short circuit, which integrates multi-dimensional sensing detection elements, data storage modules, transmission modules, and power supply modules. The multi-dimensional sensing detection elements include optical sensors, acoustic wave sensors, resistivity sensors, and electromagnetic wave sensors. The logging system 350 can monitor drilling parameters such as torque, speed, drilling pressure, and vibration in drilling work in real time, and can monitor drilling parameters such as hole inclination, azimuth, formation pressure, well inclination angle, azimuth, tool face angle in real time. It can monitor equipment parameters such as hydraulic pressure, mud parameters, annular space pressure, and equipment temperature in real time. It can monitor environmental parameters of the bottom layer such as gamma rays, resistivity, density and neutron porosity, acoustic wave time difference, depth, temperature, and gas concentration in real time.

[0031] The logging system 350 in the present invention can transmit the monitored drilling data to a cloud-based drilling control platform, also known as a cloud-based drilling monitoring and intelligent control platform, and perform multi-objective optimization of the monitored drilling parameters through a cloud-based AI algorithm. It then generates adjustment instructions including drilling speed, drilling pressure, and drilling trajectory and transmits them to the control system of the drilling rig, which then accurately directs the drilling work through the control system of the drilling rig.

[0032] Specifically, such as Figure 1 and Figure 2As shown, the drilling mechanism 400 used in the present invention includes a mechanical arm 410 and a rod changing box 420. The mechanical arm 410 is installed on the construction main beam 230, and the rod changing box 420 is fixed on the rotating chassis 220; the mechanical arm 410 can grab and rotate the drill rod to realize the automatic unscrewing and pipe arrangement of the drill rod; the rod changing box 420 stores multiple spare drill rods. When it is necessary to extend the length of the drill rod assembly 310, the mechanical arm 410 grabs the drill rod from the rod changing box 420 and moves it to the orifice of the drill hole to complete the connection of the drill rod to the drill rod assembly 310; when it is necessary to lift the drill, the mechanical arm 410 unscrews the drill rod at the top of the drill rod assembly 310 and stores it in the rod changing box 420.

[0033] The present invention also discloses a directional drilling method using the above-mentioned 4000-meter-class deep hole multifunctional modular intelligent directional drilling rig, such as Figure 3 As shown, when drilling, follow the steps below: Step 1: Use the power vehicle 100 to transport all the equipment of the directional drilling rig to the location where the drilling work needs to be carried out. After unloading the equipment from the power vehicle 100, all the equipment is installed and the drilling rig is assembled above the drill hole; Step 2: Fix the angle adjustment support rod 240 on the bottom surface and support the construction main beam 230. By rotating the rotating chassis 220, the angle can be adjusted within the range of 0 to 360 degrees in the horizontal direction. By adjusting the length of the angle adjustment support rod 240, the angle of the construction main beam 230 can be adjusted within the range of 0 to 90 degrees in the vertical direction, thereby adjusting the initial drilling direction in multiple directions. Step 3: Set the initial drilling parameters, start the driving power head 210 to provide the drilling tool mechanism 300 with rotation speed and torque, and start drilling; Step 4: As the drilling distance increases, when a drill rod reaches a certain depth, the mechanical arm 410 of the tripping mechanism 400 takes the drill rod from the rod changing box 420 and clamps it to the borehole for installation. When the drill needs to be lifted, the mechanical arm 410 removes the drill rod and stores it in the rod changing box 420. Step 5: As the drilling distance increases, the core gradually accumulated in the wireline coring core barrel 330 is continuously captured out of the borehole through the wireline coring process; Step 6: During the drilling process, the logging system 350 of the drilling tool mechanism 300 records in real time the geological data of the formation where the drilling tool mechanism 300 is located, wellbore trajectory parameters, drilling tool status, and drilling parameters. The geological data of the formation recorded by the logging system 350 include natural gamma, resistivity, density and neutron porosity, and acoustic wave time difference. The wellbore trajectory parameters recorded by the logging system 350 include well inclination, azimuth, and tool face angle. The drilling tool status recorded by the logging system 350 includes bit pressure, drilling speed, torque, and vibration. The drilling parameters recorded by the logging system 350 include downhole temperature, mud parameters, and annular pressure. The recorded drilling data is then transmitted to the cloud-based drilling control platform. Step 7: The cloud-based drilling control platform analyzes the received drilling data and regulates the drilling process. The cloud-based drilling control platform regulates the drilling parameters in real time based on the received formation parameters, drilling pressure data, torque data, drilling speed data, drill bit wear data, drilling fluid flow data, and pump pressure data. The cloud-based drilling control platform uses the received data to identify the lithology of the formation in which the drilling tool mechanism 300 is located and adjusts the drilling operation of the drilling tool mechanism 300 accordingly. When the drilling tool mechanism 300 is in a hard rock formation, the drilling pressure data of the drilling tool mechanism 300 is increased, and the cooling of the drilling tool mechanism 300 is enhanced. When the drilling tool mechanism 300 is in a fractured zone, the drilling speed of the drilling tool mechanism 300 is reduced, and the displacement is also reduced. The cloud-based drilling control platform calculates the trajectory deviation and the force required to correct the deviation based on the real-time drilling trajectory data it receives, and controls the guidance module 320 to adjust the drilling trajectory. If the drilling trajectory is determined to be deflected, the platform calculates the force required to correct the deviation of the drilling tool mechanism 300, and then uses the guidance module 320 to correct the deflected trajectory. If the drilling trajectory is determined to be non-deflected, the platform maintains the existing drilling parameters of the drilling tool mechanism 300. The cloud-based drilling control platform receives downhole pressure data, drill tool status data, and downhole gas composition, and analyzes real-time data to trigger graded alarms and treatment recommendations in advance to predict drilling risks and issue early warnings. The main judgment criteria for early warnings include whether the downhole pressure data is abnormal, whether the downhole gas composition has changed due to gas intrusion, whether the drilling tool mechanism 300 is operating normally, and whether the wellbore has deformed. If at least one of these conditions occurs, an early warning will be issued. Step 8. Continue drilling according to the above steps until directional and continuous coring work is completed at a depth of 4,000 meters.

[0034] Finally, it should be noted that the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once the basic creative concepts become known; therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the invention.

[0036] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention; thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these changes and variations.

Claims

1. 4000m deep hole multifunctional modular intelligent directional drilling rig, characterized by: The invention comprises a power vehicle (100), a multi-angle drilling mechanism (200), a drilling tool mechanism (300) and a cloud-based drilling control platform; the power vehicle (100) is used to transport the multi-angle drilling mechanism (200) and the drilling tool mechanism (300); the multi-angle drilling mechanism (200) comprises a driving power head (210), a rotating chassis (220), a construction main beam (230) and an angle adjustment support rod (240); the driving power head (210) is fixedly arranged on the top of the construction main beam (230) and is drivingly connected to the drilling tool mechanism (300); the rotating chassis (220) is rotatably arranged on the bottom of the construction main beam (230); and the angle adjustment support rod (240) is tilted and supported between the construction main beam (230) and the ground. The drilling tool mechanism (300) includes a drill rod assembly (310), a guide module (320), a rope coring core barrel (330), a drill bit module (340) and a logging system (350); the driving power head (210) is connected to the drill bit module (340) through the drill rod assembly (310) composed of a plurality of detachably connected drill rods; the rope coring core barrel (330) is movably arranged in the guide module (320); the logging system (350) is arranged between the drill rod assembly (310) and the drill bit module (340); and the guide module (320) is arranged between the logging system (350) and the drill bit module (340); data signals are transmitted between the cloud-based drilling control platform and the logging system (350).

2. The 4000-meter-class deep-hole multifunctional modular intelligent directional drilling rig according to claim 1, characterized in that: The logging system (350) is a packaged short section that internally integrates a multi-dimensional sensing detection element, a data storage module, a transmission module, and a power supply module; the multi-dimensional sensing detection element includes at least two of an optical sensor, an acoustic wave sensor, a resistivity sensor, and an electromagnetic wave sensor.

3. The 4000-meter-class deep-hole multifunctional modular intelligent directional drilling rig according to claim 2, characterized in that: The drilling rig also includes a drilling mechanism (400), which includes a mechanical arm (410) installed on a construction main beam (230) for disassembling and assembling drill rods, and a rod changing box (420) installed on a rotating chassis (220) for storing drill rods.

4. The 4000-meter-class deep-hole multifunctional modular intelligent directional drilling rig according to claim 3, characterized in that: The power vehicle (100) is a crawler-type power vehicle, and a reinforcement component for supporting a construction main beam (230) of the multi-angle drilling mechanism (200) is provided on the crawler-type power vehicle.

5. The 4000-meter-class deep-hole multifunctional modular intelligent directional drilling rig according to claim 3, characterized in that: The angle adjustment support rod (240) is a hydraulic support rod with adjustable length.

6. A directional drilling method, characterized in that: The drilling work is carried out using the 4000-meter-class deep hole multifunctional modular intelligent directional drilling rig as described in claim 4 or 5, and is carried out according to the following steps: Step 1: transport all equipment of the directional drilling rig to the location where drilling work is required by the power vehicle (100) and install all equipment; Step 2: Fix the angle adjustment support rod (240) on the bottom surface and support the construction main beam (230), and adjust the initial drilling direction by rotating the rotating chassis (220) and adjusting the length of the angle adjustment support rod (240); Step 3: setting initial drilling parameters, starting the driving power head (210) to provide the drilling tool mechanism (300) with rotation speed and torque, and starting the drilling operation; Step 4: As the drilling distance increases and the drilling depth of a drill rod is completed, the drill rod is clamped from the rod changing box (420) by the mechanical arm (410) of the drilling mechanism (400) and clamped to the borehole to connect the drill rod. When it is necessary to lift the drill, the drill rod is unloaded by the mechanical arm (410) and stored in the rod changing box (420); Step 5: As the drilling distance increases, the core gradually accumulated in the rope coring core barrel (330) is continuously captured outside the borehole through the rope coring process; Step 6: During the drilling process, the logging system (350) of the drilling tool mechanism (300) records the geological data of the formation where the drilling tool mechanism (300) is located, the wellbore trajectory parameters, the drilling tool status, and the drilling parameters in real time, and transmits the recorded drilling data to the cloud drilling control platform; Step 7: The cloud-based drilling control platform analyzes the received drilling data and regulates the drilling work; Step 8. Continue drilling according to the above steps until directional and continuous coring work is completed at a depth of 4,000 meters.

7. The directional drilling method according to claim 6, wherein: In step six, the geological data of the formation recorded by the logging system (350) include natural gamma, resistivity, density and neutron porosity, and acoustic time difference; the wellbore trajectory parameters recorded by the logging system (350) include well inclination, azimuth, and tool face angle; the drilling tool status recorded by the logging system (350) includes drilling pressure, drilling speed, torque, and vibration; and the drilling parameters recorded by the logging system (350) include downhole temperature, mud parameters, and annular pressure.

8. The directional drilling method according to claim 6, wherein: In step seven, the cloud-based drilling control platform adjusts the drilling parameters in real time based on the received formation parameters, drilling pressure data, torque data, drilling speed data, drill bit wear data, drilling fluid flow data, and pump pressure data; the cloud-based drilling control platform calculates the trajectory deviation and the force required for correction based on the received real-time drilling trajectory data, and controls the steering module (320) to adjust the drilling trajectory; the cloud-based drilling control platform predicts drilling risks and issues early warnings based on the received downhole pressure data, drilling tool status data, and downhole gas composition.

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