Full-rotation eccentric cylinder pushing type high-temperature-resistant guiding tool

Abstract

The invention relates to the technical field of oil field drilling equipment, and discloses a full-rotation eccentric cylinder pushing type high-temperature-resistant guiding tool which comprises a shell serving as a device protection shell and used for protecting an internal structure; the drill bit is arranged at the bottom of the shell and used for drilling operation; the outer frame is arranged on the outer wall of the shell and used for protecting the fine assembly; the PLC module is arranged in the outer frame and is used for regulating and controlling equipment; the driving mechanism is arranged at the top of the shell and used for driving the drill bit to operate; the eccentric cylinder is arranged in the shell and used for controlling the drilling angle of the drill bit. Eccentric adjustment is divided into large-range direction adjustment and small-range accurate correction, and the large-range direction adjustment and the small-range accurate correction have a synergistic effect, so that complex stratum changes can be quickly adapted, fine control over the drilling angle is achieved, the adaptability of equipment to complex working conditions is enhanced, and particularly the performance is excellent in multi-angle or continuous guiding drilling tasks.

Description

Technical Field

[0001] The invention relates to the technical field of oilfield drilling equipment, in particular to a full-rotating eccentric cylinder push-type high-temperature resistant guiding tool. Background Art

[0002] Steering devices play a vital role in oilfield drilling and are widely used in directional drilling, horizontal well drilling and control of complex wellbore trajectories. Existing steering technologies include conventional steering tools and dynamic steering systems. Some equipment such as screw motors and elbows mainly achieve directional adjustment through fixed angles or simple eccentricity, but their flexibility is limited in complex formations. In addition, with the complexity of drilling tasks, intelligent steering equipment has also developed in real-time monitoring, data processing and automatic adjustment, but the technical cost is high and its applicability still needs to be further optimized. Existing steering devices have achieved improvements in accuracy and adaptability in some areas, but the performance stability and diversified requirements in complex environments are still not fully met.

[0003] First, in the prior art, the eccentric adjustment of directional drilling equipment usually relies on a single-level control method, which cannot take into account both large-scale directional adjustment and small-scale precise correction. This single adjustment method shows obvious limitations under complex formation conditions. For example, when it is necessary to quickly switch directions or make refined trajectory corrections, the equipment often cannot meet the operational requirements. This technical shortcoming not only affects the accuracy of the drilling trajectory, but also limits the adaptability of the equipment in variable formations, resulting in reduced drilling efficiency and increased operational difficulty.

[0004] In addition, the traditional lubrication system of drilling equipment usually adopts a fixed amount of release method. No matter how the degree of eccentricity changes, the amount of lubricant released is always constant. This inflexible lubrication method is prone to two types of problems during operation: one is insufficient lubrication, which causes the eccentric cylinder and key components that operate at high intensity to wear seriously due to excessive friction; the other is lubricant waste. Excessive release of lubricant not only increases operating costs, but may also have a negative impact on other parts of the equipment. In addition, the existing equipment lacks intelligent lubrication control means and is difficult to adapt to the harsh underground environment of high temperature and high pressure.

[0005] Finally, the existing guidance equipment has great deficiencies in the accuracy and real-time performance of eccentricity adjustment. Traditional guidance control mostly relies on manual operation or simple preset parameters, and lacks the ability to accurately calculate and feedback real-time eccentricity angle changes. This technical limitation is prone to leading to guidance deviations under complex formation conditions, which in turn affects the accuracy of the drilling trajectory. In addition, due to the lack of data recording and analysis functions, it is difficult for traditional equipment to optimize subsequent guidance operation plans through historical data, resulting in low guidance adjustment efficiency and poor operation safety, especially in scenarios requiring high-precision continuous guidance. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides a fully rotating eccentric cylindrical push-type high-temperature resistant guiding tool, which solves the problems of insufficient flexibility of existing guiding tools in complex formations, low eccentric adjustment accuracy and the inability of the lubrication system to intelligently adapt to eccentric changes.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a fully rotating eccentric cylindrical push-type high temperature resistant guide tool, comprising:

[0008] The outer shell serves as a protective shell of the device and is used to protect the internal structure;

[0009] A drill bit, which is arranged at the bottom of the housing and is used for drilling operations;

[0010] An outer frame, which is arranged on the outer wall of the housing and is used to protect delicate components;

[0011] A PLC module, which is arranged inside the outer frame and is used for equipment control;

[0012] A driving mechanism, which is arranged on the top of the housing and is used to drive the drill bit to perform operations;

[0013] An eccentric cylinder is arranged inside the housing and is used to control the drilling angle of the drill bit;

[0014] An eccentricity regulating mechanism is arranged inside the eccentric cylinder and is used to adjust the degree of eccentricity according to demand;

[0015] An oil storage cylinder is arranged on the top of the eccentric cylinder and is used to store lubricating oil and spray and deliver the lubricating oil through the pump body;

[0016] A counting mechanism is arranged inside the eccentric cylinder and is used to convert the eccentricity changed by the eccentric cylinder into the number of turns for measurement;

[0017] The eccentricity control mechanism includes an electric push rod, which is arranged inside the eccentric cylinder. An eccentric block is fixed to the output end of the electric push rod. Slide blocks are fixed to the upper and lower sides of the eccentric block. The slide blocks are slidably connected to the inside of the eccentric cylinder. A threaded column symmetrically connected to the inside of the eccentric cylinder is rotatably connected. The threaded column is threadedly connected to the inside of the slide block.

[0018] Preferably, an electric push rod 2 is arranged inside the eccentric block 1, and an eccentric block 2 is fixed to the output end of the electric push rod 2. Slide blocks 2 are fixed on the upper and lower sides of the eccentric block 2, and the slide blocks 2 slide inside the eccentric block 1. A threaded rod 2 is threadedly connected inside the slide blocks 2, and the threaded rod 2 rotates inside the eccentric block 1.

[0019] Preferably, the counting mechanism comprises a connecting rod, one end of which is rotatably connected to a swivel, the other end of which is provided with a detector, and the outer wall of the swivel is provided with docking devices distributed in a ring array.

[0020] Preferably, the rotating ring is provided in plurality, one is provided at one end of the threaded column 1 and the threaded rod 2 for synchronous rotation, and the connecting rod is provided in plurality, one is fixed inside the eccentric cylinder and the eccentric block 1.

[0021] Preferably, a water pump is provided inside the oil storage cylinder, an overflow frame is provided on the outer wall of the eccentric cylinder, the bottom of the oil storage cylinder is communicated with a water trough opened inside the eccentric cylinder and penetrates to the position of the overflow frame, and there are multiple oil storage cylinders distributed in a circular array, and interconnecting rings are provided between the oil storage cylinders.

[0022] Preferably, a rotating shaft is fixed to the output end of the driving mechanism, the rotating shaft is connected to the eccentric cylinder, and the bottom end of the rotating shaft is connected to the drill bit.

[0023] Preferably, a high temperature resistant layer is provided inside the outer frame, and a wear-resistant layer is provided on the outer wall of the high temperature resistant layer.

[0024] Preferably, the PLC module is electrically connected to the oil storage cylinder, the PLC module is electrically connected to the detector, the PLC module is electrically connected to the first electric push rod, and the PLC module is electrically connected to the second electric push rod.

[0025] Preferably, the PLC module comprises:

[0026] An input signal unit, which is used to receive the adjustment-related signals of the eccentric block 1 and the eccentric block 2, and the pulse signal element sent by the detector;

[0027] A data processing unit, which is used to comprehensively calculate the eccentricity of the eccentric block 1 and the eccentric block 2, accumulate the change of the number of turns measured by the detector, and transmit the result to the control unit;

[0028] A control unit, which is used to control the opening time and flow rate of the lubricating oil in the oil storage cylinder according to the result calculated by the data processing unit;

[0029] A display and communication unit, which is used to transmit the calculation results to the ground display screen and record the system operation status;

[0030] The data storage unit is used to record historical data for lubricant usage statistics, drilling trajectory records and subsequent analysis.

[0031] Preferably, the data processing unit converts the eccentricity of the eccentric block 1 and the eccentric block 2 into the number of turns by the following formula:

[0032]

[0033] R outer =N outer ΔR outer

[0034] R inner =N inner ΔR inner

[0035] Among them, R total is the comprehensive eccentricity, θ is the angle between the eccentricity of eccentric block 1 and eccentric block 2, R outer , R inner are the total eccentricity of eccentric block 1 and eccentric block 2, N outer 、N inner These are the number of circles measured by eccentric block 1 and eccentric block 2 respectively;

[0036] The lubricant requirement can be calculated based on the total eccentricity using the following formula:

[0037] L=k·R total

[0038] Where L is the lubricant demand and k is the lubricant demand coefficient.

[0039] The present invention provides a fully rotating eccentric cylinder push-type high temperature resistant guide tool. It has the following beneficial effects:

[0040] 1. The present invention solves the problem of single guidance control and insufficient adjustment range of traditional equipment in complex formations by realizing multi-range flexible regulation of eccentric angles. The eccentric adjustment can be divided into large-range directional adjustment and small-amplitude precise correction. The two work together to quickly adapt to changes in complex formations and realize refined control of drilling angles. This design improves the flexibility and accuracy of the drilling trajectory and enhances the adaptability of the equipment to complex working conditions, especially in multi-angle or continuously oriented drilling tasks.

[0041] 2. The present invention automatically calculates the amount of lubricating oil released through real-time detection of eccentric angle changes, thereby solving the problem of uneven lubrication or excessive waste in traditional lubrication systems. Through intelligent lubrication control, the lubricating oil is released quantitatively only when needed, effectively reducing the friction loss of the eccentric cylinder during high-intensity operation and avoiding unnecessary waste of lubricating oil. This function not only extends the service life of the equipment, but also reduces the operating and maintenance costs, further improving the stability and economy of the equipment in high-temperature and high-pressure environments.

[0042] 3. The precise calculation and real-time feedback of the PLC module of the present invention greatly enhance the accuracy and reliability of the guiding operation, and solve the problems of slow response and low accuracy of the traditional guiding system. The equipment can dynamically capture the eccentricity changes, calculate in combination with the cumulative offset and lubrication requirements, and optimize the guiding adjustment scheme. At the same time, real-time data is transmitted to the ground display screen, which is convenient for operators to intuitively monitor and adjust the drilling parameters. This refined guiding control not only improves the adaptability in complex drilling environments, but also provides a scientific basis for subsequent operations through data recording and analysis functions, thereby improving the intelligence level and safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A perspective view of the present invention;

[0044] Figure 2 It is a schematic diagram of the internal structure of the housing of the present invention;

[0045] Figure 3 It is a schematic diagram of the internal structure of the eccentric cylinder of the present invention;

[0046] Figure 4 It is a schematic diagram of the internal structure of an eccentric block of the present invention;

[0047] Figure 5 It is a schematic diagram of a counting mechanism of the present invention;

[0048] Figure 6 This is a distribution diagram of the internal structure of the outer frame of the present invention;

[0049] Figure 7 It is a schematic diagram of the PLC module of the present invention.

[0050] Among them, 1. shell; 2. drill bit; 3. driving mechanism; 4. outer frame; 5. rotating shaft; 6. eccentric cylinder; 7. overflow frame; 8. electric push rod one; 9. eccentric block one; 10. slider one; 11. threaded column one; 12. electric push rod two; 13. eccentric block two; 14. slider two; 15. threaded rod two; 16. oil storage cylinder; 17. intercommunication ring; 18. connecting rod; 19. detector; 20. swivel; 21. docking device; 22. PLC module; 23. wear-resistant layer; 24. high temperature resistant layer. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] Please see attached Figure 1-Attached Figure 4 The embodiment of the present invention provides a fully rotating eccentric cylindrical push-type high temperature resistant guide tool, comprising:

[0053] The housing 1 is used as a protective shell of the device to protect the internal structure;

[0054] A drill bit 2, which is arranged at the bottom of the housing 1 and is used for drilling operations;

[0055] An outer frame 4, which is arranged on the outer wall of the housing 1 and is used to protect delicate components;

[0056] A PLC module 22, which is arranged inside the outer frame 4 and is used for equipment control;

[0057] A driving mechanism 3, which is arranged on the top of the housing 1 and is used to drive the drill bit 2 to perform operation;

[0058] An eccentric cylinder 6 is arranged inside the housing 1 and is used to control the drilling angle of the drill bit 2;

[0059] An eccentricity regulating mechanism, which is arranged inside the eccentric cylinder 6 and is used to adjust the degree of eccentricity according to demand;

[0060] An oil storage cylinder 16, which is arranged on the top of the eccentric cylinder 6, is used to store lubricating oil and spray and deliver the lubricating oil through the pump body;

[0061] A counting mechanism is arranged inside the eccentric cylinder 6 and is used to convert the eccentricity changed by the eccentric cylinder 6 into the number of turns for measurement;

[0062] The eccentric control mechanism includes an electric push rod 8, which is arranged inside the eccentric cylinder 6. An eccentric block 9 is fixed to the output end of the electric push rod 8. Slide blocks 10 are fixed to the upper and lower sides of the eccentric block 9. The slide blocks 10 are slidably connected to the inside of the eccentric cylinder 6. The inside of the eccentric cylinder 6 is rotatably connected with threaded columns 11 symmetrical in upper and lower directions. The threaded columns 11 are threadedly connected to the inside of the slide blocks 10.

[0063] An electric push rod 12 is arranged inside the eccentric block 19, an eccentric block 13 is fixed to the output end of the electric push rod 12, sliders 14 are fixed on the upper and lower sides of the eccentric block 13, the sliders 14 slide inside the eccentric block 19, the sliders 14 are threadedly connected with threaded rods 15, and the threaded rods 15 rotate inside the eccentric block 19.

[0064] Specifically, when the equipment performs the guiding operation, in order to meet the precise control requirements of the drilling angle, the electric push rod 18 first drives the eccentric block 19, and the sliding action of the slider 10 causes the eccentric block 19 to deviate along the predetermined trajectory; this adjustment is mainly used to achieve a large range of directional eccentric changes, providing a general adjustment direction for the overall guidance; then, according to more precise guidance requirements, the driving action of the electric push rod 12 controls the eccentric block 13 to slide and deviate in a small range along the slider 14, thereby achieving fine-tuning and optimization of the deviation angle; the synergistic effect of the double eccentric adjustment design can not only achieve rapid adjustment of the general direction, but also adjust the eccentric angle to an extremely precise level through detailed control; when the driving mechanism 3 drives the rotating shaft 5 and the eccentric cylinder 6 to rotate, the eccentric state of the eccentric cylinder 6 directly affects the drilling angle of the drill bit 2, thereby changing the drilling direction; this double-layer control design not only improves the guidance accuracy, but also enhances the adaptability of the equipment under complex formation conditions, ensuring that the drill bit 2 can accurately perform the drilling task of the target trajectory.

[0065] Please see attached Figure 5 The counting mechanism includes a connecting rod 18, one end of which is rotatably connected to a swivel 20, the other end of the connecting rod 18 is provided with a detector 19, the outer wall of the swivel 20 is provided with docking devices 21 distributed in a ring array, the swivel 20 is provided with multiple, one end of the threaded column 11 and the threaded rod 2 15 are each provided with one for synchronous rotation, the connecting rod 18 is provided with multiple, and one is fixed inside the eccentric cylinder 6 and the eccentric block 9.

[0066] Specifically, during the process of the eccentric block 1 9 and the eccentric block 2 13 performing the offset adjustment, the slider 1 10 and the slider 2 14 driven by each of them will jointly drive the threaded column 1 11 and the threaded rod 2 15, so that the threaded column 11 and the threaded rod 2 15 drive the swivel 20 to rotate synchronously through the rotational motion; while the swivel 20 rotates, the connected docking device 21 will also rotate accordingly, and this rotation process will be captured in real time by the detector 19 and converted into a corresponding signal, and the number of rotations will be accurately calculated through continuous reception and processing of the signal; then, the number of rotations is analyzed by a preset formula, and the total offset generated by the eccentric block 1 9 and the eccentric block 2 13 is further converted; this design ensures the high-precision acquisition of the offset data, provides refined parameter input for the guidance system, can significantly improve the flexibility and accuracy of the equipment in the guidance operation, and enables it to achieve highly controllable guidance adjustment even under complex formation conditions, thereby completing the drilling task more efficiently.

[0067] Please see attached Figure 2 and attached Figure 6A water pump is arranged inside the oil storage cylinder 16, an overflow frame 7 is arranged on the outer wall of the eccentric cylinder 6, the bottom of the oil storage cylinder 16 is communicated with the water tank opened inside the eccentric cylinder 6 and penetrates to the position of the overflow frame 7, a plurality of oil storage cylinders 16 are distributed in a ring array, and interconnecting rings 17 are arranged between the oil storage cylinders 16, a rotating shaft 5 is fixed to the output end of the driving mechanism 3, the rotating shaft 5 is connected to the eccentric cylinder 6, the bottom end of the rotating shaft 5 is connected to the drill bit 2, a high temperature resistant layer 24 is arranged inside the outer frame 4, and a wear-resistant layer 23 is arranged on the outer wall of the high temperature resistant layer 24.

[0068] Specifically, after determining the offset, the PLC module 22 will accurately calculate the total amount of lubricating fluid required for the guiding operation based on the received offset data, and transmit the instruction to the oil reservoir 16; the oil reservoir 16 uses the built-in water pump system to transport the calculated lubricating fluid to the position of the overflow frame 7 in an appropriate amount, effectively lubricating the moving parts of the eccentric cylinder 6, thereby greatly reducing the mechanical loss caused by friction and extending the service life of the equipment; at the same time, during the drilling operation of the drill bit 2, the wear-resistant layer 23 exhibits excellent wear resistance with its carefully designed titanium alloy composite aluminum nitride coating, and effectively resists the wear of high-strength formations on the equipment; and the high-temperature resistant layer 24 significantly improves the heat resistance and heat conduction efficiency through the filling of graphene materials, quickly dissipates heat in high-temperature environments, and ensures the stable operation of the core components of the equipment; this systematic lubrication and protection design not only reduces the energy consumption of equipment in complex working conditions, but also greatly improves the operating efficiency and reliability, providing important technical guarantees for long-term drilling.

[0069] Please see attached Figure 7 , the PLC module 22 is electrically connected to the oil storage cylinder 16, the PLC module 22 is electrically connected to the detector 19, the PLC module 22 is electrically connected to the electric push rod 1 8, and the PLC module 22 is electrically connected to the electric push rod 2 12;

[0070] The PLC module 22 includes:

[0071] An input signal unit, which is used to receive the adjustment-related signals of the eccentric block 1 9 and the eccentric block 2 13, and the pulse signal element sent by the detector 19;

[0072] A data processing unit, which is used to comprehensively calculate the eccentricity of the eccentric block 1 9 and the eccentric block 2 13, the change of the number of turns measured by the cumulative detector 19, and transmit the result to the control unit;

[0073] A control unit, which is used to control the opening time and flow rate of the lubricating oil in the oil storage cylinder 16 according to the result calculated by the data processing unit;

[0074] A display and communication unit, which is used to transmit the calculation results to the ground display screen and record the system operation status;

[0075] A data storage unit, which is used to record historical data for lubricant usage statistics, drilling trajectory records and subsequent analysis;

[0076] The data processing unit converts the eccentricity of the eccentric block 1 9 and the eccentric block 2 13 into the number of turns by the following formula:

[0077]

[0078] R outer =N outer ΔR outer

[0079] R inner =N inner ΔR inner

[0080] Among them, R total is the comprehensive eccentricity, θ is the angle between the eccentric block 1 9 and the eccentric block 2 13, R outer , R inner are the total eccentricity of the eccentric block 1 9 and the eccentric block 2 13, N outer 、N inner The number of circles measured by the eccentric block 1 9 and the eccentric block 2 13 respectively;

[0081] The lubricant requirement can be calculated based on the total eccentricity using the following formula:

[0082] L=k·R total

[0083] Where L is the lubricant demand and k is the lubricant demand coefficient.

[0084] Specifically, the PLC module 22 integrates multiple functional units to ensure the efficiency and accuracy of the system in guiding operations; specifically, it includes the following components: First, the input signal unit is responsible for receiving the adjustment signals of the eccentric block 1 9 and the eccentric block 2 13 in real time, and transmitting the pulse signal captured by the detector 19; these signals are the key basis for the eccentricity calculation and lubrication control of the entire system; secondly, the data processing unit accurately calculates the cumulative changes in the number of detector circles 19 through a comprehensive analysis of the eccentricity of the eccentric block 1 9 and the eccentric block 2 13, and transmits the results to the control unit after processing, thereby realizing refined monitoring and dynamic adjustment of the eccentric movement; this unit ensures the efficiency of eccentricity adjustment, and at the same time provides accurate parameter support for lubrication and drilling operations. On this basis, the control unit dynamically adjusts the opening time and flow rate of the lubricating oil in the oil storage cylinder 16 according to the results provided by the data processing unit, and accurately delivers the lubricating oil to the required parts; through This mechanism can effectively reduce the friction loss during eccentric movement and drilling, thereby extending the service life of the equipment and improving operating efficiency; at the same time, the display and communication unit transmits all calculation results to the ground display screen in real time through wireless or wired communication, so that the operator can grasp the system status at any time; in addition, the unit also records the operating parameters of the equipment, such as the use of lubricating fluid and drilling trajectory, providing basic data for subsequent optimization; finally, the data storage unit is responsible for saving the historical data of the system operation, including the total amount of lubricating fluid used, the trajectory information of the eccentric adjustment and related operating parameters; these data can not only be used for subsequent analysis and equipment maintenance, but also provide a scientific basis for optimization and adjustment in complex working environments; through the organic collaboration of the above-mentioned functional units, the PLC module 22 realizes efficient control and real-time response in guided operations, effectively improves the reliability and operation accuracy of the equipment, and provides strong technical support for drilling tasks under complex working conditions.

[0085] Working principle: When the equipment needs to perform guiding operations, according to the guiding requirements, the eccentric block 9 is driven by the electric push rod 8 to offset along with the sliding of the slider 10, so that it has an eccentric change in a general direction, and then according to specific needs, the eccentric block 13 is driven by the electric push rod 2 12 to slide along the slider 2 14 and then offset, and then the offset degree is slightly controlled. In this way, the eccentric direction is further controlled through the double offset setting. When the driving mechanism 3 drives the rotating shaft 5 and the eccentric cylinder 6 to rotate, the eccentricity of the eccentric cylinder 6 is controlled to change the drilling angle of the drill bit 2. At the same time, when the drill bit 2 is drilling, the corresponding wear-resistant layer 23 effectively performs wear-resistant operations through the titanium alloy composite aluminum nitride coating set by itself, and the high-temperature resistant layer 24 is filled with graphene. The eccentric block 19 and the eccentric block 21 are filled with heat, and the heat-proof and rapid heat dissipation effects are achieved. When the eccentric block 19 and the eccentric block 21 are performing offset operations, the corresponding sliders 10 and 14 will respectively drive the threaded column 11 and the threaded rod 21, so that the threaded column 11 and the threaded rod 21 can be rotated by the rotating driving ring 20 of the threaded column 11 and the threaded rod 21. During the rotation, the detector 19 can receive a signal, and then the number of rotations can be calculated. The total amount of offset generated can be calculated by the formula, so as to perform more precise guidance settings. After determining the offset, the PLC module 22 can calculate the total amount of lubricating fluid required, and then let the oil storage cylinder 16 input the lubricating fluid to the position of the overflow frame 7 through the water pump, thereby reducing the loss caused by friction at the position of the eccentric cylinder 6.

[0086] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully rotating eccentric cylindrical push-type high temperature resistant guide tool, characterized in that: include: An outer shell (1) serves as a protective shell of the device and is used to protect the internal structure; A drill bit (2) is arranged at the bottom of the housing (1) and is used for drilling operations; An outer frame (4), which is arranged on the outer wall of the housing (1) and is used to protect delicate components; A PLC module (22), which is arranged inside the outer frame (4) and is used for controlling the equipment; A driving mechanism (3) is arranged on the top of the housing (1) and is used to drive the drill bit (2) to perform operation; An eccentric cylinder (6) is arranged inside the housing (1) and is used to control the drilling angle of the drill bit (2); An eccentricity regulating mechanism, which is arranged inside the eccentric cylinder (6) and is used to adjust the degree of eccentricity according to demand; An oil storage cylinder (16) is arranged on the top of the eccentric cylinder (6) and is used to store lubricating oil and spray and deliver the lubricating oil through the pump body; A counting mechanism is arranged inside the eccentric cylinder (6) and is used to convert the eccentricity changed by the eccentric cylinder (6) into the number of revolutions for measurement; The eccentricity control mechanism comprises an electric push rod (8), the electric push rod (8) is arranged inside the eccentric cylinder (6), an eccentric block (9) is fixed to the output end of the electric push rod (8), and sliders (10) are fixed to the upper and lower sides of the eccentric block (9), and the sliders (10) are slidably connected to the inside of the eccentric cylinder (6), and the inside of the eccentric cylinder (6) is rotatably connected with a threaded column (11) symmetrical in upper and lower directions, and the threaded column (11) is threadedly connected to the inside of the slider (10).

2. A fully rotating eccentric cylindrical push-type high temperature resistant guide tool according to claim 1, characterized in that: The eccentric block 1 (9) is provided with an electric push rod 2 (12) inside, and an eccentric block 2 (13) is fixed to the output end of the electric push rod 2 (12), and two sliders (14) are fixed to the upper and lower sides of the eccentric block 2 (13), and the two sliders (14) slide inside the eccentric block 1 (9), and the two sliders (14) are threadedly connected to the inside of the two sliders (14), and the two threaded rods (15) rotate inside the eccentric block 1 (9).

3. A fully rotating eccentric cylindrical push-type high temperature resistant guide tool according to claim 1, characterized in that: The counting mechanism comprises a connecting rod (18), one end of which is rotatably connected to a rotating ring (20), the other end of which is provided with a detector (19), and the outer wall of the rotating ring (20) is provided with docking devices (21) distributed in a ring array.

4. A fully rotating eccentric cylindrical push-type high temperature resistant guide tool according to claim 3, characterized in that: The rotating ring (20) is provided in plurality, and one is provided at one end of each of the threaded column (11) and the threaded rod (15) for synchronous rotation. The connecting rod (18) is provided in plurality, and one is fixed inside each of the eccentric cylinder (6) and the eccentric block (9).

5. A fully rotating eccentric cylindrical push-type high temperature resistant guide tool according to claim 1, characterized in that: A water pump is arranged inside the oil storage cylinder (16), an overflow frame (7) is arranged on the outer wall of the eccentric cylinder (6), the bottom of the oil storage cylinder (16) is communicated with a water tank provided inside the eccentric cylinder (6) and extends to the position of the overflow frame (7), a plurality of the oil storage cylinders (16) are distributed in a circular array, and interconnecting rings (17) are arranged between the oil storage cylinders (16).

6. A fully rotating eccentric cylindrical push-type high temperature resistant guide tool according to claim 1, characterized in that: A rotating shaft (5) is fixed to the output end of the driving mechanism (3); the rotating shaft (5) is connected to an eccentric cylinder (6); and the bottom end of the rotating shaft (5) is connected to the drill bit (2).

7. A fully rotating eccentric cylindrical push-type high temperature resistant guide tool according to claim 1, characterized in that: A high temperature resistant layer (24) is provided inside the outer frame (4), and a wear-resistant layer (23) is provided on the outer wall of the high temperature resistant layer (24).

8. A fully rotating eccentric cylindrical push-type high temperature resistant guide tool according to claim 1, characterized in that: The PLC module (22) is electrically connected to the oil storage cylinder (16), the PLC module (22) is electrically connected to the detector (19), the PLC module (22) is electrically connected to the electric push rod 1 (8), and the PLC module (22) is electrically connected to the electric push rod 2 (12).

9. A fully rotating eccentric cylindrical push-type high temperature resistant guide tool according to claim 1, characterized in that: The PLC module (22) comprises: An input signal unit, which is used to receive the adjustment-related signals of the eccentric block 1 (9) and the eccentric block 2 (13), and the pulse signal element sent by the detector (19); A data processing unit, which is used to comprehensively calculate the eccentricity of the eccentric block 1 (9) and the eccentric block 2 (13), the change in the number of revolutions measured by the cumulative detector (19), and transmit the result to the control unit; A control unit, which is used to control the opening time and flow rate of the lubricating oil inside the oil storage cylinder (16) according to the result calculated by the data processing unit; A display and communication unit, which is used to transmit the calculation results to the ground display screen and record the system operation status; The data storage unit is used to record historical data for lubricant usage statistics, drilling trajectory records and subsequent analysis.

10. A fully rotating eccentric cylindrical push-type high temperature resistant guide tool according to claim 9, characterized in that: The data processing unit converts the eccentricity of the eccentric block 1 (9) and the eccentric block 2 (13) into the number of turns using the following formula: R outer =N outer ·ΔR outer R inner =N inner ·ΔR inner Among them, R total is the comprehensive eccentricity, θ is the angle between the eccentricity of eccentric block 1 (9) and eccentric block 2 (13), R outer , R inner are the total eccentricity of eccentric block 1 (9) and eccentric block 2 (13), N outer 、N inner The number of revolutions measured for eccentric block 1 (9) and eccentric block 2 (13) respectively; The lubricant requirement can be calculated based on the total eccentricity using the following formula: L=k·R total Where L is the lubricant demand and k is the lubricant demand coefficient.

Images