Movable nitrogen injection oil extraction device

Abstract

The utility model provides a movable nitrogen injection oil extraction device, which belongs to the field of oilfield exploitation and comprises a base fixedly connected with a nitrogen injection machine. And the supporting assembly comprises a frame fixedly connected to the bottom of the base, a sealing frame is fixedly connected to the bottom of the frame, threaded sleeves are rotationally connected to the four corners of the bottom of the frame correspondingly, and first threaded rods are in threaded connection with the interiors of the threaded sleeves. According to the utility model, through the arrangement of the supporting assembly, the action of force in all directions generated by a soft gravel road surface on a plurality of ball heads when the ball heads are in contact with the road surface can be counteracted through the matching of a plurality of groups of rotating rods and the ball heads, and meanwhile, the opening angles of the ball heads and the rotating rods can be adjusted, so that the device can be further adapted to different road conditions for supporting the road surface; the stability of the nitrogen injection and oil extraction device during fixed-point work is improved, the service life of the structure is prolonged through reasonable structural design, manual guarding is not needed in the using process, and using is convenient.

Description

Technical Field

[0001] The utility model relates to oilfield mining technology, in particular to a movable nitrogen injection oil production device. Background Art

[0002] As one of the best methods for enhancing crude oil recovery (ER) and natural gas recovery (ENERG), nitrogen injection is a widely used secondary recovery technology in China. Due to the remote locations of oilfields, establishing fixed nitrogen injection stations is often limited by infrastructure and power supply constraints. Furthermore, the stations cannot be relocated after oil production, resulting in significant waste. Therefore, mobile nitrogen injection equipment, as part of the nitrogen injection technology, is gaining widespread use in oilfield production.

[0003] Existing mobile nitrogen injection oil production equipment typically has a start-stop function. When the nitrogen injection machine needs to remain in one location for an extended period of time, it is often lifted entirely by a lifting mechanism to ensure stability during the injection process. However, the ground near oil fields is typically gravel, filled with a large number of fine sand and gravel particles, which are relatively soft and exert various forces on the lifting base plate, making the structure susceptible to damage during long-term use. Furthermore, the system lacks stability during operation, requires real-time monitoring, and is relatively cumbersome to use. Therefore, we propose a mobile nitrogen injection oil production equipment to address these issues. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a movable nitrogen injection oil production device to solve the problems raised in the above background technology.

[0005] The purpose of the utility model can be achieved by the following technical solution: comprising a base, to which a nitrogen injection machine is fixedly connected;

[0006] The cam is fixedly provided with a screw thread on the top of the frame, and the cam is fixedly provided with a screw thread on the bottom of the frame, and the cam is fixedly provided with a screw thread on the top of the frame.

[0007] A driving assembly is connected to the supporting assembly.

[0008] Preferably, the drive assembly includes a drive motor fixedly connected to one side of the sealing frame, the output end of the drive motor and the outer side of the adjacent threaded sleeve are fixedly connected with a bevel gear, the two bevel gears are engaged with each other, the outer side of the threaded sleeve is also fixedly connected with a sprocket, the same chain belt is tensioned between the outer sides of the four sprockets, and a group of pressure wheels are also provided at the four corners of the bottom of the frame, and each group of pressure wheels is provided with two.

[0009] Preferably, a groove is provided on one side of the rotating rod, and one end of the transverse plate rotates in the groove of the adjacent rotating rod.

[0010] Preferably, a friction sleeve is provided on the outer side of the adjustment sleeve, and the friction sleeve is made of rubber material.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By setting up the support assembly, the cooperation of multiple sets of rotating rods and ball heads can offset the effects of the forces in various directions generated by the soft gravel road surface on the multiple ball heads when the ball heads come into contact with the road surface. At the same time, the opening angles of the ball heads and rotating rods can be adjusted, which further enables the device to adapt to different road conditions of the supporting road surface, improves the stability of the nitrogen injection oil production device when working at a fixed point, and increases the service life of the structure through reasonable structural design. No manual supervision is required during use, and it is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is one of the partial three-dimensional structural diagrams of the utility model;

[0016] Figure 3 This is the second schematic diagram of a partial three-dimensional structure of the utility model;

[0017] Figure 4 yes Figure 3 An enlarged schematic diagram of part A is shown;

[0018] Figure 5 yes Figure 3 An enlarged schematic diagram of part B is shown.

[0019] In the figure: 1. Base; 2. Nitrogen injection machine; 3. Frame; 4. Sealing frame; 5. Threaded sleeve; 6. First screw; 7. L-shaped baffle; 8. Slider; 9. Ring sleeve; 10. Rotating rod; 11. Ball head; 12. Second screw; 13. Adjusting sleeve; 14. Round plate; 15. Horizontal plate; 16. Driving motor; 17. Bevel gear; 18. Sprocket; 19. Chain belt; 20. Pressure wheel. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 5 As shown, a movable nitrogen injection oil production device includes a base 1, to which a nitrogen injection machine 2 is fixedly connected; a support assembly, which includes a frame 3 fixedly connected to the bottom of the base 1, a sealing frame 4 fixedly connected to the bottom of the frame 3, a threaded sleeve 5 rotatably connected to the four corners of the bottom of the frame 3, a first screw 6 connected to the inner thread of the threaded sleeve 5, an L-shaped baffle 7 fixedly connected to the four corners of the top of the frame 3, a slider 8 fixedly connected to the outer upper side of the first screw 6, and the slider 8 slidably connected to the inner side of the adjacent L-shaped baffle 7. The bottom end of the screw rod 6 is fixedly connected to a ring sleeve 9, and a rotating rod 10 is distributed circumferentially on the bottom of the ring sleeve 9. The rotating rod 10 is rotatably connected to the bottom of the ring sleeve 9. The end of the rotating rod 10 is fixedly connected to a ball head 11. A second screw rod 12 is fixedly connected to the middle of the bottom of the ring sleeve 9. The outer lower side of the second screw rod 12 is threadedly connected to an adjusting sleeve 13. The top of the adjusting sleeve 13 is rotatably connected to a circular plate 14. Horizontal plates 15 are distributed in a circular pattern on the circular plate 14. One end of the horizontal plate 15 is connected to the rotating rod 10; a drive assembly, and the drive assembly is connected to the support assembly.

[0022] It should be noted that the sealing frame 4 is used to seal the transmission structure to avoid damage caused by the entrainment of sand and gravel particles. The threaded sleeve 5 is used to drive the first screw 6 to move up and down when rotating. The L-shaped baffle 7 is used to cooperate with the slider 8 to prevent the first screw 6 from rotating. Therefore, when the threaded sleeve 5 rotates, it can only move up and down. The ring sleeve 9 is used to install multiple sets of rotating rods 10. The rotating rod 10 is used to facilitate the angle adjustment of the ball head 11. The second screw 12 and the adjusting sleeve 13 cooperate to facilitate the adjustment sleeve 13 to move up and down outside it when it rotates. When the adjusting sleeve 13 rotates, it will pull the circular plate 14 on it up and down, and drive the angle of the rotating rod 10 to change through the cross plate 15, thereby facilitating the change of the deflection angle of the rotating rod 10 and the ball head 11, so as to facilitate adaptation according to different ground conditions, thereby improving the flexibility and adaptability of the device and improving the stability of the nitrogen injection machine 2 when it is working.

[0023] The drive assembly includes a drive motor 16 fixedly connected to one side of the sealing frame 4. The output end of the drive motor 16 and the outer side of the adjacent threaded sleeve 5 are fixedly connected with a bevel gear 17. The two bevel gears 17 are engaged with each other. The outer side of the threaded sleeve 5 is also fixedly connected to a sprocket 18. The same chain belt 19 is tensioned between the outer sides of the four sprockets 18. A group of pressure wheels 20 are also provided at the four corners of the bottom of the frame 3, and each group of pressure wheels 20 is provided with two.

[0024] It should be noted that the bevel gear 17 is used to change the transmission direction, thereby facilitating the adjustment of the installation position of the drive motor 16. The cooperation of the sprocket 18 and the chain belt 19 can drive multiple groups of threaded sleeves 5 to rotate synchronously. The pressure wheel 20 is used to increase the wrap angle between the chain belt 19 and the sprocket 18, thereby improving the reliability and stability of the transmission, and facilitating the simultaneous driving of multiple groups of threaded sleeves 5 by one power source, thereby reducing the burden and cost of electronic control.

[0025] A groove is provided on one side of the rotating rod 10 , and one end of the cross plate 15 rotates in the groove of the adjacent rotating rod 10 . The groove facilitates the connection and fixation of the cross plate 15 and the rotating rod 10 , and facilitates the installation of the cross plate 15 .

[0026] A friction sleeve is provided on the outside of the adjustment sleeve 13. The friction sleeve is made of rubber material and is used to increase the friction resistance when the hand contacts it, thereby facilitating the operation of the user.

[0027] When the utility model is implemented in detail: first adjust the deflection angle of the ball head 11 and the rotating rod 10 according to the actual road conditions, the user needs to rotate the four adjustment sleeves 13 in sequence so that they can drive the circular plate 14 and the horizontal plate 15 to move up and down through the thread cooperation with the second screw 12, thereby pushing the angle of the rotating rod 10 and the ball head 11 to change. In this process, it is necessary to use a measuring tool to ensure that the adjustment height of the four groups of adjustment sleeves 13 is consistent. Then, the device is moved to a fixed working position through the roller, and the device is connected to an external power supply. Before the fixed-point work is required, the controller controls the drive motor 1 6 works, the driving motor 16 drives the bevel gear 17 to rotate, and the engagement of the two bevel gears 17 drives a threaded sleeve 5 to rotate, and at the same time, the sprocket 18 and the chain belt 19 outside it drive multiple sprockets 18 and the threaded sleeve 5 to rotate, and the threaded sleeve 5 cooperates with the thread of the first screw 6. At the same time, since the first screw 6 is restricted by the sliding of the slider 8, when the threaded sleeve 5 rotates, the first screw 6 drives the ring sleeve 9 to move up and down until the multiple ball heads 11 at the bottom thereof contact and squeeze the gravel road surface to lift the entire device to a certain height, thereby completing the support of the main body of the device.

[0028] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A movable nitrogen injection oil production device, characterized in that: include: A base (1), wherein a nitrogen injection machine (2) is fixedly connected to the base (1); A support assembly, comprising a frame (3) fixedly connected to the bottom of a base (1), a sealing frame (4) fixedly connected to the bottom of the frame (3), a threaded sleeve (5) rotatably connected to the four corners of the bottom of the frame (3), a first screw (6) connected to the inner thread of the threaded sleeve (5), an L-shaped baffle (7) fixedly connected to the four corners of the top of the frame (3), a slider (8) fixedly connected to the outer upper side of the first screw (6), and the slider (8) slidably connected to the adjacent L-shaped baffle (7) ), the bottom end of the first screw rod (6) is fixedly connected to a ring sleeve (9), a rotating rod (10) is distributed circumferentially on the bottom of the ring sleeve (9), a ball head (11) is fixedly connected to the end of the rotating rod (10), a second screw rod (12) is fixedly connected to the middle of the bottom of the ring sleeve (9), an adjusting sleeve (13) is threadedly connected to the outer lower side of the second screw rod (12), a circular plate (14) is rotatably connected to the top of the adjusting sleeve (13), and a horizontal plate (15) is distributed in a circular shape on the circular plate (14); A driving assembly is connected to the supporting assembly.

2. The movable nitrogen injection oil production device according to claim 1, characterized in that: The driving assembly comprises a driving motor (16) fixedly connected to one side of the sealing frame (4); an output end of the driving motor (16) and the outer side of the adjacent threaded sleeve (5) are fixedly connected with a bevel gear (17); the two bevel gears (17) are meshed with each other; a sprocket (18) is also fixedly connected to the outer side of the threaded sleeve (5); a same chain belt (19) is tensioned between the outer sides of the four sprockets (18); a group of pressing wheels (20) are also provided at the four corners of the bottom of the frame (3); and each group of pressing wheels (20) is provided with two.

3. The movable nitrogen injection oil production device according to claim 1, characterized in that: A groove is provided on one side of the rotating rod (10), one end of the transverse plate (15) rotates in the groove of the adjacent rotating rod (10), and the rotating rod (10) is rotatably connected to the bottom of the ring sleeve (9).

4. The movable nitrogen injection oil production device according to claim 3, characterized in that: A friction sleeve is provided on the outer side of the adjustment sleeve (13), and one end of the transverse plate (15) is connected to the rotating rod (10).

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