A drilling gyro that is easy to assemble for oil drilling

Abstract

The present invention relates to a drilling gyro that is easy to assemble during oil drilling, and relates to the field of oil drilling. An installation groove is provided on the end surface of one end of a main body tube, and a positioning block, a pressure plate spring, a gyro assembly and a shock-absorbing spring are abutted in sequence, and the shock-absorbing spring abuts against the bottom of the installation groove, and the positioning block is detachably connected to the main body tube. The beneficial effects of the present invention are: the pressure plate spring and the shock-absorbing spring buffer the vibration of the gyro assembly, which can improve the anti-seismic ability of the drilling gyro, thereby improving work efficiency. The connection between the positioning block and the main body tube is used to limit the position of the parts in the installation groove, so that the installation and fixation of the gyro assembly can be achieved, which is convenient for installing and fixing the gyro assembly, and convenient for repairing the gyro assembly when problems occur.

Description

Technical Field

[0001] The invention relates to the technical field of oil drilling, in particular to a gyro while drilling which is easy to assemble for oil drilling. Background Art

[0002] With the continuous development of offshore oil fields, the problem of shallow collision prevention of offshore oil cluster wells has become more and more prominent, and the well control risk caused by wellbore collision prevention has become more and more severe. In order to solve the shallow collision prevention of cluster wells, gyro measurement tools have been introduced into the shallow drilling tool assembly. Gyro measurement is to use a gyrotheodolite to determine the gyro azimuth of a certain control network edge, and obtain the true azimuth of this edge by conversion. It is often used for directional connection measurement. The gyro azimuth is measured clockwise from the north direction of the gyro meridian (the meridian plane passing through the imaginary gyro axis stable position on the measuring station, that is, the intersection of the gyro meridian plane and the ground plane) to a certain directional edge. The horizontal angle. The gyro measurement tool has the characteristics of anti-magnetic interference, high data accuracy, and diverse measurement modes, which effectively solves the problem of shallow wellbore collision prevention and improves the safety of drilling operations.

[0003] The existing gyro while drilling has poor anti-vibration capability, and the vibration during operation may affect the work efficiency; moreover, the existing gyro while drilling is complicated to install, and is usually embedded in the drill pipe or integrated into a separate module, which is inconvenient to install and maintain. Summary of the invention

[0004] The technical problem to be solved by the present invention is how to increase the anti-seismic capability of the gyro while drilling.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: a drilling gyroscope that is easy to assemble for oil drilling, comprising a main body tube, a positioning block, a pressure plate spring, a gyroscope assembly and a shock-absorbing spring. An end surface of one end of the main body tube is provided with a mounting groove, the positioning block, the pressure plate spring, the gyroscope assembly and the shock-absorbing spring are abutted in sequence, and the shock-absorbing spring is abutted against the bottom of the mounting groove, and the positioning block is detachably connected to the main body tube.

[0006] The beneficial effects of the present invention are as follows: the pressure plate spring and the shock absorbing spring buffer the vibration of the gyro assembly, which can improve the anti-vibration ability of the gyro while drilling, thereby improving the working efficiency. The connection between the positioning block and the main body tube is used to limit the position of the parts in the installation groove, realize the installation and fixation of the gyro assembly, facilitate the installation and fixation of the gyro assembly, and facilitate the maintenance of the gyro assembly when a problem occurs.

[0007] Based on the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, it also includes a crushing drill bit, which is rotatably installed on the other end of the main body tube.

[0009] The beneficial effect of adopting the above further solution is that the gyro while drilling which is easy to assemble for oil drilling of the present invention can be directly installed on the end of the drill pipe as a drill bit.

[0010] Furthermore, an outer wall of one end of the main body tube is provided with a connecting thread.

[0011] The beneficial effect of adopting the above further solution is that the main body tube can be directly connected to the drill rod through the connecting thread, and is easy to disassemble and assemble.

[0012] Furthermore, it also includes a mounting block and a straightening block, wherein the mounting block is fixed to the outer wall of the main body tube, and the straightening block is fixed to the mounting block.

[0013] The beneficial effect of adopting the above further solution is that the straightening block straightens and guides the main body tube.

[0014] Furthermore, the main body tube is cylindrical, and there are multiple mounting blocks, which are evenly distributed along the circumference and arranged obliquely.

[0015] Furthermore, it also includes a positioning ring, a pressure block and a rubber pad. An annular fixing frame is fixed to the inner wall of the mounting groove. The positioning ring is sleeved on the outside of the pressure plate spring. The positioning ring is clamped between the positioning block and the fixing frame. The pressure plate spring, the pressure block, the rubber pad and the gyro assembly are abutted in sequence.

[0016] The beneficial effect of adopting the above further solution is that the rubber pad is provided to avoid damage to the gyro assembly when the pressing block abuts against the gyro assembly.

[0017] Furthermore, it also includes a mounting frame, a sliding block and a fixed plate, wherein the mounting frame is fixed to the bottom of the mounting groove, the shock-absorbing spring is sleeved on the outside of the mounting frame, the sliding block can be slidably sleeved on the outside of the mounting frame, and the gyroscope assembly, the fixed plate, the sliding block and the shock-absorbing spring are abutted in sequence.

[0018] The beneficial effects of adopting the above further solution are: facilitating the installation and positioning of the gyro assembly, the fixing plate makes the force of the gyro assembly acting on the damping spring and the sliding block more uniform, and an annular area is formed between the mounting frame and the side wall of the mounting groove to guide the damping spring.

[0019] Further, the gyro assembly includes a mounting ring, an outer torsion bar, a balancing ring, an inner torsion bar, a mounting rod and a torquer, the mounting ring abuts between the pressure plate spring and the shock-absorbing spring, the balancing ring is arranged in the mounting ring, there are two outer torsion bars, the two outer torsion bars are coaxially arranged opposite to each other, one end of the outer torsion bar is fixedly connected to the balancing ring, and the other end is rotatably connected to the mounting ring, the mounting rod is arranged in the balancing ring, there are two inner torsion bars, the two inner torsion bars are coaxially arranged opposite to each other, and the inner torsion bar is perpendicular to the outer torsion bar, one end of the inner torsion bar is fixedly connected to the mounting rod, and the other end is rotatably connected to the balancing ring, and the torquer is rotatably sleeved on the mounting rod.

[0020] The beneficial effect of adopting the above further scheme is that the mounting rod can rotate around the inner torsion bar and the outer torsion bar, and has two rotational degrees of freedom in the equatorial plane, thereby improving the accuracy of the gyro while drilling, and the torquer rotates continuously to generate rotational inertia to realize the function of the gyroscope.

[0021] Furthermore, it also includes a temperature sensor patch and a vibration sensor patch, and the temperature sensor patch and the vibration sensor patch are both fixed on the mounting ring.

[0022] The beneficial effect of adopting the above further scheme is: the temperature and vibration of the gyro while drilling are detected, so as to know the working environment of the gyro while drilling, and the gyro detection result can be corrected to ensure the accuracy of the gyro while drilling.

[0023] Furthermore, two connecting wires are included, and a groove is provided at one end of the mounting ring. One end of one of the connecting wires is connected to the temperature sensor patch, and the other end is used to connect to the controller. One end of the other connecting wire is connected to the vibration sensor patch, and the other end is used to connect to the controller. The connecting wires are received in the groove.

[0024] The beneficial effect of adopting the above further solution is that the connecting wires are stored in the grooves, and the structure is neat and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of the gyro while drilling for oil drilling according to the present invention for easy assembly;

[0026] Figure 2 A front view of a gyro while drilling that is easy to assemble for oil drilling according to the present invention;

[0027] Figure 3 for Figure 2 AA section view of the gyro while drilling for easy assembly in oil drilling;

[0028] Figure 4 A top view of the gyro while drilling for oil wells according to the present invention which is easy to assemble;

[0029] Figure 5 The bottom view of the gyro while drilling for oil drilling of the present invention is convenient for assembly.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1. Main body tube; 2. Mounting groove; 3. Mounting frame; 4. Shock-absorbing spring; 5. Sliding block; 6. Fixed plate; 7. Mounting ring; 8. External torsion bar; 9. Balancing ring; 10. Internal torsion bar; 11. Mounting rod; 12. Torquer; 13. Fixed frame; 14. Positioning ring; 15. Pressure plate spring; 16. Pressure block; 17. Rubber pad; 18. Positioning block; 19. Positioning bolt; 20. Straightening block; 21. Connecting thread; 22. Groove; 23. Connecting line; 24. Placement groove; 25. Rotating shaft; 26. Crushing drill bit; 27. Mounting block. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] like Figure 1-Figure 5 As shown, the present embodiment provides a gyro while drilling which is easy to assemble for oil drilling, comprising a main body tube 1, a positioning block 18, a pressure plate spring 15, a gyro assembly and a shock absorbing spring 4. An end surface of the main body tube 1 is provided with a mounting groove 2, and the positioning block 18, the pressure plate spring 15, the gyro assembly and the shock absorbing spring 4 are abutted in sequence, and the shock absorbing spring 4 abuts against the bottom of the mounting groove 2, and the positioning block 18 is detachably connected to the main body tube 1.

[0034] The pressure plate spring 15 and the shock absorbing spring 4 buffer the vibration of the gyro assembly, which can improve the anti-vibration capability of the gyro while drilling, thereby improving the working efficiency. The connection between the positioning block 18 and the main body tube 1 is used to limit the position of the parts in the installation groove 2, realize the installation and fixation of the gyro assembly, facilitate the installation and fixation of the gyro assembly, and facilitate the maintenance of the gyro assembly when problems occur.

[0035] Specifically, it also includes a positioning bolt 19, the mounting groove 2 is a stepped hole, the edge of the positioning block 18 abuts against the stepped platform of the stepped hole, and the positioning bolt 19 connects the positioning block 18 and the stepped platform, thereby realizing a detachable connection between the positioning block 18 and the main tube 1.

[0036] Preferably, the middle of the positioning block 18 is hollowed out, so that some parts of the gyro assembly can be arranged in the middle of the positioning block 18, making the structure in the installation slot 2 compact. At the same time, it is also convenient to connect the gyro assembly in the installation slot 2 with wires.

[0037] On the basis of the above technical solution, it also includes a crushing drill bit 26, and the crushing drill bit 26 is rotatably installed on the other end of the main body tube 1.

[0038] The gyro while drilling of the oil well which is easy to assemble in this embodiment can be directly installed as a drill bit at the end of the drill pipe.

[0039] Specifically, the other end of the main body tube 1 has a placement groove 24, a rotating shaft 25 is fixed in the placement groove 24, and a crushing drill bit 26 is rotatably installed on the rotating shaft 25 through a bearing.

[0040] In one specific embodiment, Figure 5 As shown, there are three crushing drill bits 26 evenly distributed along the axial direction.

[0041] On the basis of the above technical solution, a connecting thread 21 is provided on the outer wall of one end of the main tube 1 .

[0042] The main body tube 1 can be directly connected to the drill rod through the connecting thread 21, and is easy to assemble and disassemble.

[0043] On the basis of the above technical solution, it further comprises a mounting block 27 and a straightening block 20 . The mounting block 27 is fixed to the outer wall of the main tube 1 , and the straightening block 20 is fixed to the mounting block 27 .

[0044] The straightening block 20 straightens and guides the main body tube 1 .

[0045] On the basis of the above technical solution, the main body tube 1 is cylindrical, and there are multiple mounting blocks 27, which are evenly distributed along the circumference and inclined.

[0046] On the basis of the above technical solution, it also includes a positioning ring 14, a pressure block 16 and a rubber pad 17. The inner wall of the mounting groove 2 is fixed with an annular fixed frame 13. The positioning ring 14 is sleeved on the outside of the pressure plate spring 15. The positioning ring 14 is clamped between the positioning block 18 and the fixed frame 13. The pressure plate spring 15, the pressure block 16, the rubber pad 17 and the gyro assembly are abutted in sequence.

[0047] A rubber pad 17 is provided to avoid damage to the gyro assembly when the pressure block 16 abuts against the gyro assembly. The fixed frame 13 limits the positioning ring 14. Preferably, the middle portion of the positioning block 18 extends toward one end of the bottom of the mounting groove 2, so that in the radial direction, an annular area is formed between the positioning block 18 and the positioning ring 14, which can guide the movement of the pressure plate spring 15 and the pressure block 16 (along the axial direction of the positioning ring 14).

[0048] On the basis of the above technical solution, it also includes a mounting frame 3, a sliding block 5 and a fixed plate 6, the mounting frame 3 is fixed to the bottom of the mounting groove 2, the shock-absorbing spring 4 is sleeved on the outside of the mounting frame 3, the sliding block 5 can be slidably sleeved on the outside of the mounting frame 3, and the gyroscope assembly, the fixed plate 6, the sliding block 5 and the shock-absorbing spring 4 are abutted in sequence.

[0049] The above structure facilitates the installation and positioning of the gyro assembly, and the fixing plate 6 makes the force of the gyro assembly acting on the shock absorbing spring 4 and the sliding block 5 more uniform. An annular area is formed between the mounting frame 3 and the side wall of the mounting groove 2 to guide the shock absorbing spring 4. The mounting frame 3 can also guide the sliding block 5.

[0050] On the basis of the above technical solution, the gyro assembly includes a mounting ring 7, an outer torsion bar 8, a balancing ring 9, an inner torsion bar 10, a mounting rod 11 and a torquer 12. The mounting ring 7 abuts between the pressure plate spring 15 and the shock-absorbing spring 4. The balancing ring 9 is arranged in the mounting ring 7. There are two outer torsion bars 8, which are coaxially arranged opposite to each other. One end of the outer torsion bar 8 is fixedly connected to the balancing ring 9, and the other end is rotatably connected to the mounting ring 7. The mounting rod 11 is arranged in the balancing ring 9. There are two inner torsion bars 10, which are coaxially arranged opposite to each other, and the inner torsion bar 10 is perpendicular to the outer torsion bar 8. One end of the inner torsion bar 10 is fixedly connected to the mounting rod 11, and the other end is rotatably connected to the balancing ring 9. The torquer 12 is rotatably sleeved on the mounting rod 11.

[0051] The mounting rod 11 can rotate around the inner torsion bar 10 and the outer torsion bar 8, and has two rotational degrees of freedom in the equatorial plane, thereby improving the accuracy of the gyro while drilling. The torquer 12 is driven by the motor to rotate continuously, generating rotational inertia to realize the function of the gyroscope.

[0052] Specifically, Figure 3 As shown, the outer torsion bar 8 and the inner torsion bar 10 are both arranged horizontally and axially perpendicular to each other. The outer torsion bar 8 and the inner torsion bar 10 have large bending stiffness and small torsional stiffness. For example, they can be made of spring steel. The mounting rod 11 is arranged vertically.

[0053] On the basis of the above technical solution, it further comprises a temperature sensor patch and a vibration sensor patch, and both the temperature sensor patch and the vibration sensor patch are fixed on the mounting ring 7 .

[0054] The temperature and vibration of the gyro while drilling are tested to understand the working environment of the gyro. The gyro test results can be corrected to ensure the accuracy of the gyro while drilling.

[0055] On the basis of the above technical solution, it also includes two connecting wires 23. A groove 22 is opened at one end of the mounting ring 7. One end of one of the connecting wires 23 is connected to the temperature sensor patch, and the other end is used to connect to the controller. One end of the other connecting wire 23 is connected to the vibration sensor patch, and the other end is used to connect to the controller. The connecting wire 23 is received in the groove 22.

[0056] The connecting wire 23 is received in the groove 22, and the structure is neat and beautiful. The controller can be set in the mounting groove 2, for example, inside the mounting frame 3, and the other end of the connecting wire 23 is connected to the controller, or the controller can also be set in other components outside the main tube 1, and the other end of the connecting wire 23 passes through the positioning block 18 and is connected to the external controller. The controller is used to obtain the temperature signal and vibration signal measured by the temperature sensor patch and the vibration sensor patch, so that the detection result of the gyro assembly can be corrected to make the detection result more accurate.

[0057] In one of the specific embodiments, in the mounting groove 2, from the bottom of the groove (the closed end of the mounting groove 2) to the top of the groove (the open end of the mounting groove 2), the shock-absorbing spring 4, the sliding block 5, the fixing plate 6, the mounting ring 7, the rubber pad 17, the pressure block 16, the pressure plate spring 15 and the positioning block 18 are abutted in sequence, and the positioning block 18 is detachably connected to the main tube 1 by the positioning bolt 19, thereby limiting each component inside the mounting groove 2.

[0058] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by terms such as “vertical”, “inside”, “outside”, “axial” and “circumferential” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0060] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0062] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gyro for oil drilling that is easy to assemble, comprising a main body tube (1), characterized in that: It also includes a positioning block (18), a pressure plate spring (15), a gyro assembly, a shock absorbing spring (4), a positioning ring (14), a pressure block (16), a rubber pad (17), a mounting frame (3), a sliding block (5), and a fixing plate (6); an end surface of one end of the main body tube (1) is provided with a mounting groove (2); the shock absorbing spring (4) abuts against the bottom of the mounting groove (2); and the positioning block (18) is detachably connected to the main body tube (1); An annular fixing frame (13) is fixed to the inner wall of the mounting groove (2), the positioning ring (14) is sleeved on the outer side of the pressure plate spring (15), and the positioning ring (14) is clamped between the positioning block (18) and the fixing frame (13); The mounting frame (3) is fixed to the bottom of the mounting groove (2), the damping spring (4) is sleeved on the outside of the mounting frame (3), the sliding block (5) is slidably sleeved on the outside of the mounting frame (3), and the positioning block (18), the pressure plate spring (15), the pressure block (16), the rubber pad (17), the gyro assembly, the fixing plate (6), the sliding block (5) and the damping spring (4) are abutted in sequence; The gyro assembly comprises a mounting ring (7), an outer torsion bar (8), a balancing ring (9), an inner torsion bar (10), a mounting bar (11) and a torquer (12); the mounting ring (7) is abutted between the pressure plate spring (15) and the shock absorbing spring (4); the balancing ring (9) is arranged inside the mounting ring (7); there are two outer torsion bars (8), the two outer torsion bars (8) are coaxially arranged opposite to each other, and one end of the outer torsion bar (8) is fixedly connected to the balancing ring (9). , the other end is rotatably connected to the mounting ring (7), the mounting rod (11) is arranged in the balancing ring (9), there are two inner torsion bars (10), the two inner torsion bars (10) are coaxially arranged opposite to each other, and the inner torsion bars (10) are perpendicular to the outer torsion bars (8), one end of the inner torsion bar (10) is fixedly connected to the mounting rod (11), and the other end is rotatably connected to the balancing ring (9), and the torquer (12) is rotatably sleeved on the mounting rod (11).

2. The gyro while drilling that is easy to assemble for oil drilling according to claim 1, characterized in that: It also comprises a crushing drill bit (26), wherein the crushing drill bit (26) is rotatably mounted on the other end of the main body tube (1).

3. The gyro while drilling that is easy to assemble for oil drilling according to claim 1, characterized in that: A connecting thread (21) is provided on the outer wall of one end of the main body tube (1).

4. The gyro while drilling that is easy to assemble for oil drilling according to claim 1, characterized in that: It also comprises a mounting block (27) and a straightening block (20), wherein the mounting block (27) is fixed to the outer wall of the main body tube (1), and the straightening block (20) is fixed to the mounting block (27).

5. The gyro while drilling that is easy to assemble for oil drilling according to claim 4, characterized in that: The main body tube (1) is cylindrical, and the mounting blocks (27) are multiple, and the multiple mounting blocks (27) are evenly distributed along the circumferential direction and are arranged obliquely.

6. A gyro for oil drilling that is easy to assemble according to any one of claims 1 to 5, characterized in that: It also includes a temperature sensor patch and a vibration sensor patch, and the temperature sensor patch and the vibration sensor patch are both fixed on the mounting ring (7).

7. The gyro while drilling that is easy to assemble for oil drilling according to claim 6, characterized in that: It also includes two connecting wires (23), one end of the mounting ring (7) is provided with a groove (22), one end of one of the connecting wires (23) is connected to the temperature sensor patch, and the other end is used to connect to a controller, and one end of the other connecting wire (23) is connected to the vibration sensor patch, and the other end is used to connect to a controller, and the connecting wire (23) is received in the groove (22).

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