A Drilling Gyroscope Stabilization Platform System

Abstract

This utility model discloses a gyroscope stabilization platform system for drilling, including an upper connector assembly, a lower connector assembly, a pressure-bearing shell, and a stabilization platform body. The pressure-bearing shell is disposed between the upper and lower connector assemblies, and the stabilization platform body is disposed inside the pressure-bearing shell. The stabilization platform body includes an inner shell with an upper end cover and a lower end cover at both ends. Inside, from top to bottom, are arranged a measurement and control component, a motor, an electric slip ring, and a drilling gyroscope. The stator of the electric slip ring is fixed to the inner shell with screws, and the rotor ends of the electric slip ring are connected to the output shaft of the motor and the drilling gyroscope via couplings. The measurement and control component includes an MCU control unit and a large-range MEMS gyroscope and a three-axis accelerometer electrically connected to it for acquiring the real-time rotational speed of the drill pipe. The MCU control unit is also electrically connected to the motor. By acquiring the real-time rotational speed of the drill pipe through the measurement and control component, the motor outputs a gyroscope with the opposite direction but the same rotational speed, causing the drilling gyroscope to reverse, thereby achieving relative stillness of the drilling gyroscope.

Description

Technical Field

[0001] This utility model relates to the field of drilling equipment technology, specifically to a gyroscope-stabilized platform system for drilling. Background Technology

[0002] The well logging gyroscope inclinometer is a high-precision downhole measurement tool. Its core function is to determine the inclination azimuth of the borehole. It is widely used in oil exploration, geological survey and other fields to ensure accurate drilling direction and improve extraction efficiency.

[0003] In actual use, continuous drilling operations of the well logging gyroscope cause the gyroscope to rotate continuously in the axial direction, which means that the drilling must be stopped during measurement and the logging time is too long. Because the measurement is discontinuous, the instrument must use the method of static alignment when the drilling is stopped to measure, and it cannot achieve continuous navigation calculation. Therefore, it is difficult to apply to scenarios such as rotating steerable systems that do not stop drilling. Utility Model Content

[0004] To address the aforementioned issues, this invention provides a gyroscope stabilization platform system for drilling. This system has a simple structure and uses a motor to drive the gyroscope to rotate in the opposite direction, thereby keeping the gyroscope relatively stationary relative to the drill string in the axial direction, thus achieving single-axis stabilization of the gyroscope.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a gyroscope stabilization platform system for drilling, comprising an upper connector assembly, a lower connector assembly, a pressure-bearing shell, and a stabilization platform body. The pressure-bearing shell is disposed between the upper connector assembly and the lower connector assembly, and the stabilization platform body is disposed inside the pressure-bearing shell. The stabilization platform body includes an inner shell, with an upper end cover and a lower end cover respectively disposed at both ends of the inner shell. Inside, from top to bottom, a measurement and control assembly, a motor, an electric slip ring, and a drilling gyroscope are arranged sequentially. The stator of the electric slip ring is fixed to the inner shell by screws, and the rotor ends of the electric slip ring are respectively connected to the output shaft of the motor and the drilling gyroscope via couplings. The measurement and control assembly includes an MCU control unit and a large-range MEMS gyroscope and a triaxial accelerometer electrically connected to it for acquiring the real-time rotational speed of the drill pipe. The MCU control unit is also electrically connected to the motor.

[0006] The upper end cover is engaged with the upper connector assembly to form a first vibration damper, and the lower end cover is engaged with the lower connector assembly to form a second vibration damper.

[0007] Both the upper connector assembly and the lower connector assembly are equipped with damping rubber rings.

[0008] Both the upper and lower end caps are equipped with damping rubber rings.

[0009] The drilling gyroscope is equipped with bearings at both ends.

[0010] The beneficial effects of this utility model are as follows: This utility model uses a large-range MEMS gyroscope on the measurement and control component to collect the real-time rotation speed of the drill rod and control the motor to output an axial angle with the same speed but opposite direction, which drives the drilling gyroscope to rotate in the opposite direction. In this way, the drilling gyroscope is in a relatively stationary state relative to the drill rod in the axial direction, thereby achieving single-axis stability of the drilling gyroscope. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings:

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the main structure of the stable platform of this utility model;

[0014] Figure 3 This is a schematic diagram illustrating the working principle of this utility model;

[0015] In the diagram: 1. Main body of the stabilizing platform; 2. Upper connector assembly; 3. Lower connector assembly; 4. Pressure-bearing outer shell; 5. First vibration damper; 6. Second vibration damper; 7. Damping rubber ring; 101. Inner shell; 102. Upper end cover; 103. Lower end cover; 104. Motor; 105. Electric slip ring; 106. Drilling gyroscope; 107. Coupling; 108. Measurement and control components; 109. Bearing. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0017] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0018] Example 1

[0019] like Figures 1 to 2As shown, this utility model provides a gyroscope stabilization platform system for drilling, including an upper connector assembly 2, a lower connector assembly 3, a pressure-bearing shell 4, and a stabilization platform body 1. The pressure-bearing shell 4 is disposed between the upper connector assembly 2 and the lower connector assembly 3, and the stabilization platform body 1 is disposed inside the pressure-bearing shell 4. The stabilization platform body 1 includes an inner shell 101, with an upper end cover 102 and a lower end cover 103 respectively disposed at both ends of the inner shell 101. Inside, from top to bottom, a measurement and control assembly 108, a motor 104, an electric slip ring 105, and a drilling gyroscope 106 are arranged sequentially. The stator of the electric slip ring 105 is fixed to the inner shell 101 by screws, and the rotor ends of the electric slip ring 105 are connected to the output shaft of the motor 104 and the drilling gyroscope 106 respectively through a coupling 107. The measurement and control assembly 108 includes an MCU control unit and a large-range MEMS gyroscope and a triaxial accelerometer electrically connected to it for collecting the real-time rotational speed of the drill pipe. The MCU control unit is also electrically connected to the motor 104.

[0020] The real-time rotation speed of the drill rod is collected by the large-range MEMS gyroscope on the measurement and control component 108. The motor 104 outputs an axial rotation angle with the same speed but opposite direction, which drives the drilling gyroscope 106 to rotate in the opposite direction. In this way, the drilling gyroscope 106 is in a relatively stationary state relative to the drill rod in the axial direction, thereby achieving single-axis stability of the drilling gyroscope 106.

[0021] Specifically, the upper end cover 102 is engaged with the upper connector assembly 2 to connect the first vibration damper 5, and the lower end cover 103 is engaged with the lower connector assembly 3 to connect the second vibration damper 6. By setting the first vibration damper 5 and the second vibration damper 6, the vibration and impact during the drilling process of the drill pipe are reduced, providing a relatively stable working environment for the drilling gyroscope 106.

[0022] Specifically, both the upper connector assembly 2 and the lower connector assembly 3 are equipped with damping rubber rings 7, and both the upper end cover 102 and the lower end cover 103 are equipped with damping rubber rings 7. By setting the damping rubber rings 7, the vibration reduction effect of the device is further enhanced, and the working stability of the drilling gyroscope 106 is improved.

[0023] Specifically, the drilling gyroscope 106 is provided with bearings 109 at both ends, which effectively improves the rotational stability and accuracy of the drilling gyroscope 106.

[0024] Working principle: such as Figure 3As shown, when starting work, the drilling gyroscope 106 needs to perform initial attitude alignment. After successful alignment, it performs continuous navigation work; otherwise, it continues alignment. The real-time rotational speed is collected by the large-range MEMS gyroscope in the measurement and control component 108, and the acceleration data is collected by the three-axis accelerometer. Then, the real-time tool face angle is calculated. The real-time angular velocity is input through the measurement and control component 108 to calculate the PWM duty cycle using PID, control the PWM output of the timer, and finally control the motor 104 to rotate in the opposite direction, driving the drilling gyroscope 106 to rotate in the opposite direction. In this way, the drilling gyroscope 106 is in a relatively stationary state relative to the drill pipe in the axial direction, and continuously collects velocity and acceleration data during the drilling process, controlling the rotation of the motor 104 until it stops working.

[0025] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A gyro-stabilized platform system for drilling, characterized in that, The system includes an upper connector assembly (2), a lower connector assembly (3), a pressure-bearing shell (4), and a stable platform body (1). The pressure-bearing shell (4) is located between the upper connector assembly (2) and the lower connector assembly (3). The stable platform body (1) is located inside the pressure-bearing shell (4). The stable platform body (1) includes an inner shell (101). An upper end cover (102) and a lower end cover (103) are respectively provided at both ends of the inner shell (101). The measurement and control assembly (108) and the motor (104) are arranged sequentially from top to bottom inside the inner shell. The slip ring (105) and the drilling gyroscope (106) are provided. The stator of the slip ring (105) is fixed to the inner housing (101) by screws. The two ends of the rotor of the slip ring (105) are connected to the output shaft of the motor (104) and the drilling gyroscope (106) respectively by couplings (107). The measurement and control component (108) includes an MCU control unit and a large-range MEMS gyroscope and a triaxial accelerometer electrically connected to it for collecting the real-time rotation speed of the drill rod. The MCU control unit is also electrically connected to the motor (104).

2. The drilling gyroscope stabilization platform system according to claim 1, characterized in that, The upper end cover (102) is engaged with the upper connector assembly (2) to connect the first damper (5), and the lower end cover (103) is engaged with the lower connector assembly (3) to connect the second damper (6).

3. The drilling gyroscope stabilization platform system according to claim 1, characterized in that, Both the upper connector assembly (2) and the lower connector assembly (3) are provided with damping rubber rings (7).

4. The drilling gyroscope stabilization platform system according to claim 1, characterized in that, Both the upper end cover (102) and the lower end cover (103) are provided with damping rubber rings (7).

5. The drilling gyroscope stabilization platform system according to claim 1, characterized in that, The drilling gyroscope (106) is provided with bearings (109) at both ends.

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