Sucker rod vibration control system

Abstract

A sucker rod vibration control system relates to the technical field of oilfield exploitation and is characterized in that an inner pipe is fixedly connected with the inner wall of an outer pipe through a plurality of fixing frames I, and the outer pipe is mounted in a punched hole through a hole punched in the ground in advance to serve as a protective shell for oil extraction; a plurality of open grooves are symmetrically formed in the two sides of the inner pipe, supporting frames are fixedly installed beside the open grooves, sliding grooves are formed in the supporting frames, limiting frames are installed in the sliding grooves in a sliding mode, round holes are formed in the limiting frames, the limiting frames are connected with round rods on clamping plates in a sliding mode, the clamping plates are connected with the open grooves in the inner pipe in a sliding mode, and compression springs I are installed on the round rods on the clamping plates. The oil rod can generate unnecessary vibration during oil pumping, when the oil rod works, the oil rod can be clamped, a compression spring I on a clamping plate can absorb vibration energy generated by the oil rod, and when the oil rod is installed or taken out, the clamping plate can move to the outer wall of an inner pipe, so that the interior of the inner pipe is kept smooth, and the oil rod is prevented from being damaged. And interference on limiting during mounting or taking out is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of oilfield exploitation, in particular to a pumping rod vibration control system. Background Art

[0002] The sucker rod vibration control device is a vital technical equipment in the field of oil production. It is specially designed to deal with the vibration problem of the sucker rod during the oil production process. In oil production operations, the sucker rod is a key component connecting the surface pumping unit and the downhole oil pump. During the up and down reciprocating motion, it will be affected by a variety of complex factors, such as changes in formation pressure, differences in well fluid properties, and unbalanced equipment operation, thereby generating vibration. This vibration will not only accelerate the wear of the sucker rod itself and the components connected to it, resulting in a shortened equipment life, increased maintenance costs and downtime, but may also cause serious accidents such as rod breakage and pipe leakage, seriously affecting the normal production of the oil well and reducing oil production efficiency.

[0003] The emergence of sucker rod vibration control devices provides an effective solution to this problem. These devices typically consist of a shock-absorbing component, an intelligent monitoring system, and an adjustment mechanism. The shock-absorbing component, made of advanced materials and featuring a unique structural design, absorbs and disperses the energy generated during the sucker rod's movement, effectively reducing vibration amplitude. The intelligent monitoring system provides real-time monitoring of the sucker rod's vibration status.

[0004] There are various vibration control systems in the prior art, but they often fail to achieve a good balance between efficiency and control accuracy, and are unable to individually adjust different vibrations generated at different locations, making it impossible to adjust the vibration control to the most balanced state. Summary of the Invention

[0005] In response to the above technical problems, the present invention discloses a sucker rod vibration control system, which can effectively solve the problems in the background technology; the oil rod will generate unnecessary vibrations when pumping oil, and the present invention can clamp the oil rod when the oil rod is working, and the compression spring I on the clamping plate can absorb the vibration energy generated by the oil rod, and when the oil rod is installed or removed, the clamping plate can be moved to the outer wall of the inner tube to keep the inner tube unobstructed, thereby preventing interference and limitation during installation or removal; when the present invention is in use, the displacement laser sensor monitors the oil rod at different heights, and can identify the vibration intensity at different heights of the oil rod, so that the position with stronger vibration can be adjusted in a targeted manner, that is, the compression degree of the compression spring I is adjusted to change the pre-tightening force of the clamping plate on the oil rod, thereby ensuring that the vibration energy of the entire oil rod is offset and balanced, thereby minimizing the vibration of the oil rod.

[0006] The sucker rod vibration control system, the inner tube is fixedly connected to the inner wall of the outer tube through multiple fixing frames I, the outer tube is installed in the holes through holes drilled in advance on the ground, as a protective shell for oil production; multiple slots are symmetrically provided on both sides of the inner tube, and a support frame is fixedly installed next to the slot, and a slide is provided on the support frame, and a limit frame is slidably installed in the slide, and a circular hole is provided on the limit frame, which is slidably connected to the round rod on the splint, and the splint is slidably connected to the slot on the inner tube, and a compression spring I is installed on the round rod on the splint, one end of the compression spring I contacts the splint, and the other end of the compression spring I contacts the limit frame, and the function of the compression spring I is to reduce the energy of the vibration generated by the oil rod by buffering and absorbing; sliding rods are also fixedly installed on both sides of the inner tube, and the sliding rods are slidably connected to the circular holes at both ends of the limit frame, and a compression spring II is installed on the sliding rod, and the function of the compression spring II is to reset the limit frame to the outermost end of the support frame.

[0007] Preferably, a plurality of cylinders are provided on the inner tube, and a displacement laser sensor is fixedly installed in the cylinder. When the oil rod vibrates, the vibration amplitude at different heights of the oil rod is different, and the signal data generated by the displacement laser sensor at different heights is also different, which can be used as a basis for adjustment.

[0008] Preferably, the splint is arc-shaped and fits the outer wall of the oil rod, and the surface of the splint in contact with the oil rod is smooth to prevent excessive friction from being generated when the oil rod is produced.

[0009] Preferably, a plurality of fixing frames II are provided on the outer wall of the inner tube, the circular holes on the fixing frames II are slidably connected to the slide rails, and the slide rails are fixedly mounted on the side panels; a plurality of central inclined panels are also fixedly mounted on the inner side of the side panels, and the inclined surfaces on the central inclined panels are in contact with the limit frames.

[0010] Preferably, the side panels are provided with a plurality of limit buckles, and a plurality of adjustment plates are slidably installed in the limit buckles. The plurality of adjustment plates are fitted together, and a side inclined panel is fixedly installed on the side of each adjustment plate. However, the position of each side inclined panel is different, and the position of each side inclined panel corresponds to the position of each limit frame, and the side inclined panel on the outermost adjustment plate is the longest, and the side inclined panel on the innermost adjustment plate is the shortest, so that all the side inclined panels can contact the two ends of the limit frame.

[0011] Preferably, a limiting rod is fixedly installed on the side plate, and each adjustment plate is provided with two notches, which are slidably connected to the limiting rod to strengthen the limiting.

[0012] Preferably, multiple stepper motors are fixedly installed on the upper end of the side panel, and the motor shaft of each stepper motor is connected to the corresponding multiple threaded rods. The multiple threaded rods are rotatably installed on the second layer of the board at the upper end of the side panel, and each threaded rod is also threadedly connected to the upper end of a different adjustment plate. A notch is provided on the top of each adjustment plate, and the smaller the notch is towards the inside, so that each adjustment plate can slide up and down without interfering with each other.

[0013] Preferably, a circular frame is fixedly installed at the upper end between the two side plates, the circular frame is fixedly connected to the piston rod of the hydraulic cylinder, and the cylinder body of the hydraulic cylinder is fixedly installed at the upper end of the outer tube.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The oil rod will generate unnecessary vibration when pumping oil. The present invention can clamp the oil rod when it is working. The compression spring I on the clamping plate can absorb the vibration energy generated by the oil rod. Moreover, when the oil rod is installed or removed, the clamping plate can move to the outer wall of the inner tube, so that the inner tube remains unobstructed and prevents interference and limitation during installation or removal;

[0015] 2. When in use, the present invention monitors the different heights of the oil boom through the displacement laser sensor, which can identify the vibration intensity at different heights of the oil boom. This allows targeted adjustments to be made at locations with stronger vibrations. In other words, the compression level of compression spring I is adjusted to change the preload force of the splint on the oil boom, thereby ensuring that the vibration energy of the entire oil boom is offset and balanced, thereby minimizing oil boom vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an isometric view of the overall structure of the present invention.

[0017] Figure 2 It is a side view of the overall structure of the present invention.

[0018] Figure 3 It is an overall structural diagram of the internal structure of the present invention.

[0019] Figure 4 It is a structural diagram of the inner tube of the present invention.

[0020] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle.

[0021] Figure 6 This is a diagram showing the connection relationship between the limiting frame and the clamping plate of the present invention.

[0022] Figure 7 This is a diagram showing the installation relationship of the side panels of the present invention.

[0023] Figure 8 This is a first perspective view of the installation and connection relationship of the adjustment plate of the present invention.

[0024] Figure 9 This is a second perspective view of the installation and connection relationship of the adjustment plate of the present invention.

[0025] Figure 10 This is a diagram showing the positional relationship between the adjustment plate and the side inclined panel of the present invention.

[0026] Figure 11 It is a connection relationship diagram of the circular ring frame of the present invention.

[0027] Figure numbers: 1. Inner tube; 2. Fixing frame I; 3. Support frame; 4. Slide rod; 5. Limiting frame; 6. Clamp; 7. Compression spring I; 8. Compression spring II; 9. Displacement laser sensor; 10. Fixing frame II; 11. Slide rail; 12. Side plate; 13. Center inclined panel; 14. Adjustment plate; 15. Side inclined panel; 16. Limiting buckle; 17. Limiting rod; 18. Threaded rod; 19. Stepping motor; 20. Ring frame; 21. Hydraulic cylinder; 22. Outer tube. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be further described in detail below through examples and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the inventive product is usually placed when in use. They are only for the convenience of describing the simplified description of the patent of the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the patent of the present invention. In addition, for the convenience of explanation, spatially relative terms may be used herein, for example, "below", "below", "below", "above", "above", etc., to describe the relationship of an element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation shown in the accompanying drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein may also be interpreted accordingly.

[0030] Implementation example Figures 1-10 As shown, the sucker rod vibration control system;

[0031] In an optional implementation of the embodiment of the present invention, Figure 3 、 Figure 4 、 Figure 5 、 Figure 6As shown, the inner tube 1 is fixedly connected to the inner wall of the outer tube 22 through multiple fixing frames Ⅰ2, and the outer tube 22 is installed in the holes drilled in advance on the ground as a protective shell for oil production; multiple slots are symmetrically provided on both sides of the inner tube 1, and a support frame 3 is fixedly installed next to the slot, and a slide groove is provided on the support frame 3, and a limit frame 5 is slidably installed in the slide groove. The limit frame 5 is provided with a circular hole, which is slidably connected to the round rod on the splint 6, and the splint 6 is slidably connected to the slot on the inner tube 1. A compression spring Ⅰ7 is installed on the round rod on the splint 6, and one end of the compression spring Ⅰ7 contacts the splint 6, and the other end of the compression spring Ⅰ7 contacts the limit frame 5. The function of the compression spring Ⅰ7 is to reduce the energy of the vibration generated by the oil rod; sliding rods 4 are also fixedly installed on both sides of the inner tube 1, and the sliding rod 4 is slidably connected to the circular holes at both ends of the limit frame 5. A compression spring Ⅱ8 is installed on the sliding rod 4, and the function of the compression spring Ⅱ8 is to reset the limit frame 5 to the outermost end of the support frame 3.

[0032] In an optional implementation of the embodiment of the present invention, Figure 5 As shown, the inner tube 1 is provided with a plurality of cylinders, in which a displacement laser sensor 9 is fixedly installed. When the oil rod vibrates, the vibration amplitude at different positions of the oil rod is different, and the signal data generated by the displacement laser sensor 9 at different positions is also different, which can be used as a basis for adjustment.

[0033] In an optional implementation of the embodiment of the present invention, Figure 6 As shown, the shape of the clamping plate 6 is arc-shaped and fits the outer wall of the oil rod, and the surface of the clamping plate 6 that contacts the oil rod is a smooth surface to prevent excessive friction from being generated when the oil rod is produced.

[0034] In an optional implementation of the embodiment of the present invention, Figure 7 As shown, a plurality of fixing frames II 10 are provided on the outer wall of the inner tube 1, and the circular holes on the fixing frames II 10 are slidably connected to the slide rails 11, and the slide rails 11 are fixedly mounted on the side panels 12; a plurality of central inclined panels 13 are also fixedly mounted on the inner side of the side panels 12, and the inclined surfaces on the central inclined panels 13 are in contact with the limit frames 5.

[0035] In an optional implementation of the embodiment of the present invention, Figure 8 、 Figure 9 As shown, the side panel 12 is provided with a plurality of limit buckles 16, and a plurality of adjustment plates 14 are slidably installed in the limit buckles 16. The plurality of adjustment plates 14 are fitted together, and a side bevel panel 15 is fixedly installed on the side of each adjustment plate 14, but the position of each side bevel panel 15 is different. The position of each side bevel panel 15 corresponds to the position of each limit frame 5, and the side bevel panel 15 on the outermost adjustment plate 14 is the longest, and the side bevel panel 15 on the innermost adjustment plate 14 is the shortest, so that all the side bevel panels 15 can contact the two ends of the limit frame 5.

[0036] In an optional implementation of the embodiment of the present invention, Figure 8 As shown, a limiting rod 17 is fixedly mounted on the side plate 12, and each adjustment plate 14 is provided with two notches, which are slidably connected to the limiting rod 17 to strengthen the limiting.

[0037] In an optional implementation of the embodiment of the present invention, Figure 8 、 Figure 10 As shown, a plurality of stepper motors 19 are fixedly mounted on the upper end of the side panel 12. The motor shaft of each stepper motor 19 is connected to a corresponding plurality of threaded rods 18. The plurality of threaded rods 18 are rotatably mounted on the second layer of the upper end of the side panel 12. Each threaded rod 18 is also threadedly connected to the upper end of a different adjustment plate 14. A notch is provided on the upper side of each adjustment plate 14. The smaller the notch is towards the inner side, the smaller the notch is, so that each adjustment plate 14 can slide up and down without interfering with each other.

[0038] In an optional implementation of the embodiment of the present invention, Figure 1 、 Figure 11 As shown, a circular frame 20 is fixedly installed at the upper end between the two side plates 12 . The circular frame 20 is fixedly connected to the piston rod of the hydraulic cylinder 21 . The cylinder body of the hydraulic cylinder 21 is fixedly installed at the upper end of the outer tube 22 .

[0039] Working principle: When the present invention is used, firstly, the oil rod is installed. The oil rod needs to be placed in the inner tube 1. The initial position of the clamping plate 6 is at the outer wall of the inner tube 1, which will not affect the placement of the oil rod. When the oil rod is installed, the oil production work begins;

[0040] Before starting oil production, the oil rod needs to be clamped to reduce vibration. The hydraulic cylinder 21 is started, driving the fixed frame I2 to move downward, thereby driving the side plate 12 to slide downward. The central inclined panel 13 on the side plate 12 squeezes the limit frame 5 inward, so that the clamping plate 6 clamps the oil rod, and then the oil rod starts to move up and down to produce oil.

[0041] When the oil rod moves up and down, it will vibrate, and the energy of the vibration will be absorbed by the compression spring Ⅰ7. In addition, displacement laser sensors 9 are installed at positions of different heights. The displacement laser sensor 9 can identify the vibration position changes at the corresponding positions, thereby identifying the vibration amplitude. According to the data, the shock absorption strength of the position with a larger vibration amplitude will be adjusted. Specifically, when the vibration amplitude at a certain displacement laser sensor 9 position is large, the corresponding side inclined panel 15 at this position needs to be driven to squeeze the limit frame 5 again, so that the limit frame 5 moves further inward, and the compression amount of the compression spring Ⅰ7 is greater, absorbing greater vibration energy. Specifically, the adjustment plate 14 corresponding to this side inclined panel 15 moves downward under the rotation of the corresponding threaded rod 18, and the rotation of the threaded rod 18 is driven by the stepping motor 19 at the corresponding position; in this way, fixed-point monitoring and fixed-point fine-tuning can be achieved, so that the vibration of the oil rod in the well can be better alleviated.

[0042] While 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 these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Sucker rod vibration control system, characterized in that: The inner tube (1) is fixedly connected to the inner wall of the outer tube (22) through a plurality of fixing frames I (2), and the outer tube (22) is installed in the holes drilled in advance on the ground as a protective shell for oil production; a plurality of slots are symmetrically provided on both sides of the inner tube (1), and a support frame (3) is fixedly installed next to the slot, and a slide is provided on the support frame (3), and a limit frame (5) is slidably installed in the slide, and a circular hole is provided on the limit frame (5) and is slidably connected to the round rod on the splint (6), and the splint (6) is connected to the inner tube (1 ) is connected to the slotted groove on the inner tube (1) for sliding connection, a compression spring I (7) is installed on the round rod on the clamping plate (6), one end of the compression spring I (7) contacts the clamping plate (6), and the other end of the compression spring I (7) contacts the limit frame (5); sliding rods (4) are also fixedly installed on both sides of the inner tube (1), the sliding rod (4) is connected to the circular holes at both ends of the limit frame (5) for sliding connection, and a compression spring II (8) is installed on the sliding rod (4), and the function of the compression spring II (8) is to reset the limit frame (5) to the outermost end of the support frame (3).

2. The sucker rod vibration control system according to claim 1, characterized in that: The inner tube (1) is also provided with a plurality of cylinders, and a displacement laser sensor (9) is fixedly installed in each cylinder. When the oil rod vibrates, the vibration amplitude at different positions of the oil rod is different, and the signal data generated by the displacement laser sensor (9) at different positions is also different.

3. The sucker rod vibration control system according to claim 1, characterized in that: The clamping plate (6) is in an arc shape and fits the outer wall of the oil rod, and the surface of the clamping plate (6) in contact with the oil rod is a smooth surface.

4. The sucker rod vibration control system according to claim 2, characterized in that: A plurality of fixing frames II (10) are further provided on the outer wall of the inner tube (1), the circular holes on the fixing frames II (10) are slidably connected to the slide rails (11), and the slide rails (11) are fixedly mounted on the side panels (12); a plurality of central inclined panels (13) are further fixedly mounted on the inner side of the side panels (12), and the inclined surfaces on the central inclined panels (13) are in contact with the limit frames (5).

5. The sucker rod vibration control system according to claim 4, characterized in that: The side panel (12) is provided with a plurality of limit buckles (16), and a plurality of adjustment plates (14) are slidably installed in the limit buckles (16). The plurality of adjustment plates (14) are fitted together, and a side bevel panel (15) is fixedly installed on the side of each adjustment plate (14). However, the position of each side bevel panel (15) is different, and the position of each side bevel panel (15) corresponds to the position of each limit frame (5), and the side bevel panel (15) on the outermost adjustment plate (14) is the longest, and the side bevel panel (15) on the innermost adjustment plate (14) is the shortest, so that all the side bevel panels (15) can contact the two ends of the limit frame (5).

6. The sucker rod vibration control system according to claim 5, characterized in that: A limiting rod (17) is also fixedly mounted on the side plate (12), and each adjustment plate (14) is provided with two notches, which are slidably connected to the limiting rod (17) to strengthen the limiting.

7. The sucker rod vibration control system according to claim 6, characterized in that: A plurality of stepper motors (19) are fixedly mounted on the upper end of the side plate (12), and the motor shaft of each stepper motor (19) is connected to a corresponding plurality of threaded rods (18). The plurality of threaded rods (18) are rotatably mounted on the second layer of the upper end of the side plate (12). Each threaded rod (18) is also threadedly connected to the upper end of a different adjustment plate (14). A notch is provided on the upper side of each adjustment plate (14), and the notch becomes smaller as it moves toward the inner side, so that each adjustment plate (14) can slide up and down without interfering with each other.

8. The sucker rod vibration control system according to claim 7, characterized in that: A circular frame (20) is fixedly installed at the upper end between the two side plates (12). The circular frame (20) is fixedly connected to the piston rod of the hydraulic cylinder (21). The cylinder body of the hydraulic cylinder (21) is fixedly installed on the upper end of the outer tube (22).

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