Automatic screwing-on and screwing-off device for petroleum well repair

Abstract

The invention relates to the technical field of petroleum well repair, and discloses an automatic screwing-on and screwing-off device for petroleum well repair, which comprises a rack, the rack is made of high-strength steel, a rotary driving mechanism is arranged at the upper end of the inner wall of the rack, a centering clamping mechanism is arranged at the middle end of the inner wall of the rack, and a control system is arranged at the lower end of the inner wall of the rack. A sensor system is arranged on the inner wall of the rack, the rotation driving mechanism comprises a speed reducer, the bottom of the speed reducer is fixedly connected with the top of the rack, the output end of the speed reducer movably penetrates through the top of the inner wall of the rack, a first servo motor is arranged on the top of the speed reducer, and a rotating head is fixedly installed at the output end of the speed reducer; the rotary driving mechanism and the centering clamping mechanism are arranged, rapid and accurate screwing-on and screwing-off of the tubular column are achieved through the automatic control technology, the operation efficiency is improved, the labor intensity is reduced, thread damage is reduced, the operation safety is improved, the thread damage can be effectively reduced through the centering clamping mechanism, and the service life of the tubular column is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of oil well repair, in particular to an automatic make-up and break-out device for oil well repair. Background Art

[0002] Well repair refers to the operation of oil drilling and subsequent well maintenance, which is the maintenance and care measures taken to ensure the smooth use of the oil well. The project is difficult and has high technical requirements. It must be equipped with large-scale well repair equipment and special equipment and tools such as overhaul drill pipes and overhaul turntables to carry out the work. In oil well repair operations, the connection and disassembly of tubing, drill pipe and other pipes are common operations. Traditionally, the shackle operation mainly relies on manual or semi-automatic equipment, which has problems such as low efficiency, high labor intensity and poor safety. In addition, manual operation can easily cause thread damage, affecting the service life of the pipe.

[0003] Although the automatic make-up and break-out devices in the prior art have improved efficiency, reduced labor intensity and improved safety to a certain extent, they still have problems such as complex structure, poor adaptability and high maintenance cost, and cannot meet the needs of modern oil well repair.

[0004] Therefore, we propose an automatic make-up and break-out device for oil well repair. Summary of the invention

[0005] The present invention mainly solves the technical problems existing in the above-mentioned prior art and provides an automatic make-up and break-out device for oil well repair.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an automatic make-up and make-out device for oil well repair, comprising a frame, the frame is made of high-strength steel, a rotation drive mechanism is arranged at the upper end of the inner wall of the frame, a centering clamping mechanism is arranged at the middle end of the inner wall of the frame, a control system is arranged at the lower end of the inner wall of the frame, a sensor system is arranged at the inner wall of the frame, the rotation drive mechanism comprises a reducer, and the bottom of the reducer is fixedly connected to the top of the frame, the output end of the reducer movably passes through the top of the inner wall of the frame, a first servo motor is arranged at the top of the reducer, a rotating head is fixedly installed at the output end of the reducer, a pipe column is arranged on the inner wall of the rotating head, the centering clamping mechanism comprises a first mounting block, and the outer wall of the first mounting block is fixedly connected to the front end of the inner wall of the frame, the control system comprises a PLC controller and a touch screen operation interface, and the sensor system comprises a torque sensor, a position sensor, a pressure sensor and a laser centering sensor.

[0007] Preferably, a limiting guide rod is fixedly installed on the right side of the back side of the first mounting block, a second mounting block is fixedly installed on the back side of the limiting guide rod, and an outer wall of the second mounting block is fixedly connected to the rear end of the inner wall of the frame.

[0008] Preferably, a second servo motor is fixedly mounted on the left side of the front side of the first mounting block, and the output end of the second servo motor movably passes through the back side of the first mounting block.

[0009] Preferably, a positive screw rod is fixedly mounted on the output end of the second servo motor, a negative screw rod is fixedly mounted on the back of the positive screw rod, and the back of the negative screw rod is movably connected to the left side of the front side of the second mounting block.

[0010] Preferably, the outer wall of the positive screw rod is threadedly connected to a first clamping plate, and the right side of the inner wall of the first clamping plate is movably connected to the front end of the outer wall of the limiting guide rod, and the rear end of the inner wall of the first clamping plate is provided with a first clamping ring assembly.

[0011] Preferably, the outer wall of the reverse screw rod is threadedly connected with a second clamping plate, and the right side of the inner wall of the second clamping plate is movably connected to the rear end of the outer wall of the limiting guide rod.

[0012] Preferably, a second clamping ring assembly is provided at the front end of the inner wall of the second clamping plate, and the structure of the second clamping ring assembly is consistent with that of the first clamping ring assembly.

[0013] Preferably, the first clamping ring assembly comprises a clamping ring body, and the outer wall of the clamping ring body is fixedly connected to the rear end of the inner wall of the first clamping plate.

[0014] Preferably, rollers are evenly and movably mounted on the inner wall of the clamping ring body, and anti-slip patterns are arranged on the outer wall of the rollers.

[0015] The present invention provides an automatic make-up and break-out device for oil well repair, which has the following beneficial effects:

[0016] 1. This kind of automatic make-up and make-out device for oil well repair is equipped with a rotating drive mechanism and a centering clamping mechanism, and realizes fast and accurate make-up and make-out of the pipe string through automatic control technology, thereby improving operation efficiency, reducing labor intensity, reducing thread damage, and improving operation safety. The centering clamping mechanism can effectively reduce thread damage and extend the service life of the pipe string. The overall structure is simple, the adaptability is strong, and the maintenance cost is low.

[0017] 2. This automatic make-up and make-out device for oil well repair is provided with a frame which is made of high-strength steel and has a stable structure and can adapt to the complex environment underground.

[0018] 3. This automatic make-up and break-out device for oil well repair is equipped with a control system. The control system adopts a PLC controller and a touch screen operation interface, which is easy to operate, has strong adaptability and is easy to maintain.

[0019] 4. This automatic make-up and break-out device for oil well repair is equipped with a sensor system and a real-time monitoring function of the sensor system to ensure operation accuracy and safety and reduce operation risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the front side of the present invention;

[0021] Figure 2 It is a schematic diagram of the top structure of the centering clamping mechanism of the present invention;

[0022] Figure 3 It is a schematic diagram of the back structure of the first clamping ring assembly of the present invention;

[0023] Figure 4 It is a schematic diagram of the control system module of the present invention;

[0024] Figure 5 It is a schematic diagram of the sensor system module of the present invention.

[0025] Legend: 10. Frame; 11. Rotary drive mechanism; 12. Centering clamping mechanism; 13. Reducer; 14. First servo motor; 15. Rotating head; 16. Pipe column; 17. First mounting block; 18. Limiting guide rod; 19. Second mounting block; 20. Second servo motor; 21. Positive screw rod; 22. Negative screw rod; 23. First clamping plate; 24. First clamping ring assembly; 25. Second clamping plate; 26. Second clamping ring assembly; 27. Clamping ring body; 28. Roller; 29. ​​Anti-slip pattern. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0027] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "inner", "outer", "side", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invented product is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply 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 limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 embodiments of the present invention can be understood according to specific circumstances.

[0031] The following will be combined with the drawings in the embodiments 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.

[0032] Embodiment 1: An automatic make-up and make-out device for oil well repair, such as Figure 1-Figure 3As shown, it includes a frame 10, the frame 10 is made of high-strength steel, a rotation drive mechanism 11 is arranged at the upper end of the inner wall of the frame 10, a centering clamping mechanism 12 is arranged at the middle end of the inner wall of the frame 10, a control system is arranged at the lower end of the inner wall of the frame 10, a sensor system is arranged at the inner wall of the frame 10, the rotation drive mechanism 11 includes a reducer 13, and the bottom of the reducer 13 is fixedly connected to the top of the frame 10, the output end of the reducer 13 movably passes through the top of the inner wall of the frame 10, a first servo motor 14 is arranged at the top of the reducer 13, a rotating head 15 is fixedly installed at the output end of the reducer 13, and a pipe column 1 is arranged on the inner wall of the rotating head 15 6. The centering clamping mechanism 12 includes a first mounting block 17, and the outer wall of the first mounting block 17 is fixedly connected to the front end of the inner wall of the frame 10, a limit guide rod 18 is fixedly installed on the right side of the back of the first mounting block 17, a second mounting block 19 is fixedly installed on the back of the limit guide rod 18, and the outer wall of the second mounting block 19 is fixedly connected to the rear end of the inner wall of the frame 10, a second servo motor 20 is fixedly installed on the left side of the front of the first mounting block 17, and the output end of the second servo motor 20 moves through the back of the first mounting block 17, a positive wire screw rod 21 is fixedly installed on the output end of the second servo motor 20, and a reverse wire screw rod 21 is fixedly installed on the back of the positive wire screw rod 21 The screw rod 22 is provided with a second clamping plate 24 at the rear end of the inner wall of the first clamping plate 23, and the second clamping plate 25 is provided with a second clamping plate 25 at the rear end of the inner wall of the second clamping plate 25, and the second clamping plate 25 is provided with a second clamping ring assembly 26 at the front end of the inner wall of the second clamping plate 25, and the structure of the second clamping ring assembly 26 is consistent with that of the first clamping ring assembly 24. The first clamping ring assembly 24 includes a clamping ring body 27, and the outer wall of the clamping ring body 27 is fixedly connected to the rear end of the inner wall of the first clamping plate 23, and the inner wall of the clamping ring body 27 is evenly and movably installed with rollers 28, and the outer wall of the rollers 28 is provided with anti-slip grooves 29. By setting up a rotating drive mechanism 11 and a centering clamping mechanism 12, the rapid and accurate make-up and make-out of the pipe column 16 can be achieved through automatic control technology, thereby improving working efficiency, reducing labor intensity, reducing thread damage, and improving working safety. The centering clamping mechanism 12 can effectively reduce thread damage and extend the service life of the pipe column 16. The overall structure is simple, adaptable, and has low maintenance costs.

[0033] Embodiment 2: Based on Embodiment 1, Figure 2As shown, the centering clamping mechanism 12 includes a first mounting block 17, and the outer wall of the first mounting block 17 is fixedly connected to the front end of the inner wall of the frame 10, a limiting guide rod 18 is fixedly installed on the right side of the back of the first mounting block 17, a second mounting block 19 is fixedly installed on the back of the limiting guide rod 18, and the outer wall of the second mounting block 19 is fixedly connected to the rear end of the inner wall of the frame 10, a second servo motor 20 is fixedly installed on the left side of the front of the first mounting block 17, and the output end of the second servo motor 20 movably passes through the back of the first mounting block 17, a positive screw rod 21 is fixedly installed on the output end of the second servo motor 20, a reverse screw rod 22 is fixedly installed on the back of the positive screw rod 21, and the back of the reverse screw rod 22 is connected to the second The front left side of the mounting block 19 is movably connected, the outer wall of the positive screw rod 21 is threadedly connected with a first clamping plate 23, and the right side of the inner wall of the first clamping plate 23 is movably connected to the front end of the outer wall of the limiting guide rod 18, and a first clamping ring assembly 24 is provided at the rear end of the inner wall of the first clamping plate 23, and the outer wall of the negative screw rod 22 is threadedly connected with a second clamping plate 25, and the right side of the inner wall of the second clamping plate 25 is movably connected to the rear end of the outer wall of the limiting guide rod 18, and a second clamping ring assembly 26 is provided at the front end of the inner wall of the second clamping plate 25, and the structure of the second clamping ring assembly 26 is consistent with the first clamping ring assembly 24, and a frame 10 is set, and the frame 10 is made of high-strength steel, has a stable structure, and can adapt to the complex environment underground.

[0034] Embodiment 3: Based on Embodiment 1 and Embodiment 2, Figure 3 As shown, the first clamping ring assembly 24 includes a clamping ring body 27, and the outer wall of the clamping ring body 27 is fixedly connected to the rear end of the inner wall of the first clamping plate 23, and the inner wall of the clamping ring body 27 is evenly and movably installed with rollers 28, and the outer wall of the roller 28 is provided with anti-slip grooves 29. A control system is set up, and the control system adopts a PLC controller and a touch screen operation interface, which is easy to operate, has strong adaptability, and is easy to maintain.

[0035] Embodiment 4: Based on Embodiment 1, Embodiment 2 and Embodiment 3, Figure 4 As shown, the control system includes a PLC controller and a touch screen operation interface. By setting up a sensor system and a real-time monitoring function of the sensor system, operation accuracy and safety are ensured and operation risks are reduced.

[0036] Embodiment 5: Based on Embodiment 1, Embodiment 2, Embodiment 3 and Embodiment 4, Figure 5 As shown, the sensor system includes a torque sensor, a position sensor, a pressure sensor and a laser centering sensor.

[0037] The working principle of the present invention is as follows: when in use, first start the first servo motor 14, the output end of the first servo motor 14 drives the reducer 13 to operate, the output end of the reducer 13 drives the rotating head 15 to rotate, the inner wall of the rotating head 15 is provided with a pipe column 16, and the pipe column 16 rotates accordingly, and at the same time, start the second servo motor 20, the output end of the second servo motor 20 drives the positive screw rod 21 and the negative screw rod 22 to rotate, the outer walls of the positive screw rod 21 and the negative screw rod 22 are respectively threadedly connected with the first clamping plate 23 and the second clamping plate 25, the first clamping plate 23 and the second clamping plate 25 move relative to each other, the inner walls of the first clamping plate 23 and the second clamping plate 25 are respectively provided with the first clamping ring assembly 24 and the second clamping ring assembly 26, the first clamping ring assembly 24 and the second clamping ring assembly 26 perform centering clamping on the pipe column 16. The first clamping ring assembly 24 and the second clamping ring assembly 26 include a clamping ring body 27. The inner wall of the clamping ring body 27 is evenly and movably installed with rollers 28. The rollers 28 can not hinder the rotation of the pipe column 16 when clamping the pipe column 16. The outer wall of the rollers 28 is provided with anti-skid patterns 29 to increase friction and prevent the pipe column 16 from falling off. At the same time, the position, torque and pressure of the pipe column 16 are monitored in real time through the sensor system to ensure operational accuracy and safety. The laser centering sensor ensures the centering accuracy of the pipe column 16. The operation of the entire device is controlled by the control system. The control system adopts a PLC controller and a touch screen operation interface, which is easy to operate, has strong adaptability and is easy to maintain.

[0038] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic make-up and break-out device for oil well repair, comprising a frame (10), characterized in that: The frame (10) is made of high-strength steel, a rotation drive mechanism (11) is arranged at the upper end of the inner wall of the frame (10), a centering clamping mechanism (12) is arranged at the middle end of the inner wall of the frame (10), a control system is arranged at the lower end of the inner wall of the frame (10), a sensor system is arranged at the inner wall of the frame (10), the rotation drive mechanism (11) includes a reducer (13), and the bottom of the reducer (13) is fixedly connected to the top of the frame (10), and the output end of the reducer (13) movably penetrates the top of the inner wall of the frame (10). The reducer (13) is provided with a first servo motor (14) at the top, a rotating head (15) is fixedly mounted at the output end of the reducer (13), a pipe column (16) is arranged on the inner wall of the rotating head (15), a centering clamping mechanism (12) comprises a first mounting block (17), and the outer wall of the first mounting block (17) is fixedly connected to the front end of the inner wall of the frame (10), the control system comprises a PLC controller and a touch screen operation interface, and the sensor system comprises a torque sensor, a position sensor, a pressure sensor and a laser centering sensor.

2. The automatic make-up and break-out device for oil well repair according to claim 1, characterized in that: A limiting guide rod (18) is fixedly mounted on the right side of the back side of the first mounting block (17), a second mounting block (19) is fixedly mounted on the back side of the limiting guide rod (18), and an outer wall of the second mounting block (19) is fixedly connected to the rear end of the inner wall of the frame (10).

3. The automatic make-up and break-out device for oil well repairing according to claim 1, characterized in that: A second servo motor (20) is fixedly mounted on the left side of the front side of the first mounting block (17), and the output end of the second servo motor (20) movably passes through the back side of the first mounting block (17).

4. The automatic make-up and break-out device for oil well repairing according to claim 3 is characterized by: A positive screw rod (21) is fixedly mounted on the output end of the second servo motor (20), a negative screw rod (22) is fixedly mounted on the back of the positive screw rod (21), and the back of the negative screw rod (22) is movably connected to the left side of the front side of the second mounting block (19).

5. The automatic make-up and break-out device for oil well repairing according to claim 4 is characterized in that: The outer wall of the positive screw rod (21) is threadedly connected to a first clamping plate (23), and the right side of the inner wall of the first clamping plate (23) is movably connected to the front end of the outer wall of the limiting guide rod (18), and the rear end of the inner wall of the first clamping plate (23) is provided with a first clamping ring assembly (24).

6. The automatic make-up and break-out device for oil well repairing according to claim 4, characterized in that: The outer wall of the reverse screw rod (22) is threadedly connected to a second clamping plate (25), and the right side of the inner wall of the second clamping plate (25) is movably connected to the rear end of the outer wall of the limiting guide rod (18).

7. The automatic make-up and break-out device for oil well repairing according to claim 6, characterized in that: A second clamping ring assembly (26) is provided at the front end of the inner wall of the second clamping plate (25), and the structure of the second clamping ring assembly (26) is consistent with that of the first clamping ring assembly (24).

8. The automatic make-up and break-out device for oil well repairing according to claim 5, characterized in that: The first clamping ring assembly (24) comprises a clamping ring body (27), and the outer wall of the clamping ring body (27) is fixedly connected to the rear end of the inner wall of the first clamping plate (23).

9. The automatic make-up and break-out device for oil well repairing according to claim 8, characterized in that: The inner wall of the clamping ring body (27) is evenly and movably mounted with rollers (28), and the outer wall of the rollers (28) is provided with anti-slip patterns (29).

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