Drainage gas recovery device for oil and gas field exploitation

Abstract

The utility model discloses a drainage gas recovery device for oil-gas field exploitation, and relates to the technical field of oil-gas field exploitation. The vehicle comprises a vehicle body; the mounting plate is rotationally mounted on the vehicle body, and a connecting plate is mounted at the top of the mounting plate. The mounting plate is rotatably mounted on the vehicle body, the mounting plate can be rotated to adapt to the direction of a gas production point, the adaptability of the device under different topographic conditions is improved, the operation posture can be flexibly adjusted, the shock absorption assembly can effectively buffer the impact of various external forces on the device structure, and the service life of the device is prolonged. The movable assembly and other related parts on the connecting plate are protected, stability and reliability of the device are guaranteed, damage to the parts or reduction of operation precision caused by vibration is avoided, and the movable assembly can drive the movable plate to move along the connecting plate, so that the positions of the parts such as the roller, the pulley and the operation frame are changed. And the operation position of the gas production equipment at the wellhead is further flexibly adjusted.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas field development technology, specifically to a drainage gas extraction device for oil and gas field development. Background Technology

[0002] Most of my country's gas reservoirs are closed, elastic water-drive reservoirs, all of which produce formation water to varying degrees during development. Due to the interference of formation water, gas fields enter the decline phase prematurely before reaching high recovery rates, and may even experience water flooding and shutdown of wells, affecting the final recovery rate. Therefore, improving the recovery rate of water-bearing gas reservoirs has long been a crucial research topic both domestically and internationally. Drainage gas production technology is one of the important measures to tap the production potential of gas wells in water-bearing gas reservoirs and improve the recovery rate.

[0003] In the field of oil and gas field development, drainage gas production equipment is one of the key pieces of equipment for achieving efficient gas production. To improve the convenience and flexibility of gas production, existing technologies typically mount the gas production equipment on transport vehicles. Leveraging the mobility of these vehicles, the equipment can be quickly transported to designated locations within the oil and gas field for production operations. This design has indeed brought convenience to gas production to some extent, enabling the equipment to quickly respond to production needs at different locations and reducing the time and manpower wasted on equipment transportation. However, this existing technology still has significant drawbacks in practical applications. The terrain of oil and gas fields is often complex and varied, with many rugged, steep, or narrow and difficult-to-access areas. Due to limitations in size, chassis height, and driving capability, transport vehicles have difficulty entering these specific locations smoothly. When the gas extraction point happens to be located in these areas that are difficult for transport vehicles to reach, the gas extraction device cannot be accurately moved to the optimal gas extraction position. This not only leads to a significant reduction in gas extraction efficiency, but may also delay the entire oil and gas field's development progress due to the inability of the equipment to be in place, thereby affecting a series of subsequent oil and gas extraction-related operational processes, such as oil and gas collection, transportation, and subsequent processing. Utility Model Content

[0004] The purpose of this utility model is to provide a drainage gas extraction device for oil and gas field development in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an oil and gas field development drainage and gas extraction device, comprising: a vehicle body; a mounting plate, the mounting plate being rotatably mounted on the vehicle body, a connecting plate being mounted on the top of the mounting plate, and a shock-absorbing component being installed between the mounting plate and the connecting plate; a movable plate, the movable plate being slidably mounted on the top of the connecting plate, a movable component being mounted on the connecting plate, a roller, a pulley, and a working frame being fixedly mounted sequentially on the top of the movable plate, an auxiliary wheel being fixedly mounted on the top of the working frame, a flexible sucker rod being wound on the roller, the flexible sucker rod being placed sequentially on the pulley and the auxiliary wheel, a blowout preventer being provided on the flexible sucker rod, and a sucker and a weight rod being provided at the end of the flexible sucker rod.

[0006] Furthermore, a circular plate is fixedly installed on the bottom of the mounting plate, a rotating groove is constructed on the vehicle body, the circular plate is rotatably inserted into the rotating groove, a drive motor is fixedly installed on the vehicle body, and the output end of the drive motor is fixedly connected to the bottom of the circular plate.

[0007] Furthermore, the damping assembly includes a plurality of dampers fixedly installed between the mounting plate and the connecting plate, and a plurality of damping springs fixedly installed between the mounting plate and the connecting plate.

[0008] Furthermore, the moving component includes two positioning plates symmetrically distributed and fixedly installed on the top of the connecting plate, a lead screw rotatably installed between the two positioning plates, a forward and reverse motor for driving the lead screw to rotate is fixedly installed on one side of one of the positioning plates, and a sliding plate is fixedly installed on the bottom of the moving plate, the sliding plate being threadedly connected to the lead screw.

[0009] Furthermore, cylinders are fixedly installed at the four opposite corners of the bottom of the vehicle body, and base plates are fixedly installed at the telescopic ends of the cylinders.

[0010] Furthermore, a limiting frame is fixedly installed on the top of the mounting plate, and the outer periphery of the connecting plate is slidably connected to the inner periphery of the limiting frame.

[0011] Furthermore, multiple ground cones are slidably installed in an array at the bottom of the base plate.

[0012] The beneficial effects of this utility model are as follows:

[0013] This utility model is rotatably mounted on the vehicle body via a mounting plate. The rotatable mounting plate can be adapted to the direction of the gas extraction point, increasing the adaptability of the device under different terrain conditions and allowing for flexible adjustment of the working posture. The shock absorption component can effectively buffer the impact of various external forces on the device structure, protect the moving components on the connecting plate and other related parts, ensure the stability and reliability of the device, and avoid damage to components or a decrease in working accuracy due to vibration. The moving component can drive the moving plate to move along the connecting plate, thereby changing the position of components such as rollers, pulleys, and working frames, and further flexibly adjusting the working position of the gas extraction equipment at the wellhead. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a utility model Figure 1 A three-dimensional sectional view of the structure;

[0016] Figure 3 This is a utility model Figure 1 Another three-dimensional structural sectional view;

[0017] Figure 4 This is another three-dimensional structural diagram of this utility model.

[0018] Reference numerals: 1. Vehicle body; 2. Mounting plate; 3. Connecting plate; 4. Shock absorption assembly; 41. Damper; 42. Shock absorption spring; 5. Moving plate; 6. Moving assembly; 61. Positioning plate; 62. Lead screw; 63. Forward and reverse motor; 64. Slide plate; 7. Roller; 8. Pulley; 9. Working frame; 10. Auxiliary wheel; 11. Flexible sucker rod; 12. Blowout preventer box; 13. Squeegee; 14. Weight bar; 15. Circular plate; 16. Drive motor; 17. Cylinder; 18. Base plate; 19. Limiting frame; 20. Ground cone. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0020] like Figure 1-4 As shown, an embodiment of the present invention proposes an oil and gas field development drainage gas extraction device, comprising: a vehicle body 1;

[0021] Mounting plate 2 is rotatably mounted on the vehicle body 1. A connecting plate 3 is mounted on the top of the mounting plate 2. A shock-absorbing component 4 is installed between the mounting plate 2 and the connecting plate 3.

[0022] A movable plate 5 is slidably mounted on the top of the connecting plate 3. A movable component 6 is mounted on the connecting plate 3. A roller 7, a pulley 8, and a working frame 9 are sequentially fixedly mounted on the top of the movable plate 5. An auxiliary wheel 10 is fixedly mounted on the top of the working frame 9. A flexible sucker rod 11 is wound on the roller 7. The flexible sucker rod 11 is placed on the pulley 8 and the auxiliary wheel 10 in sequence. A blowout preventer box 12 is provided on the flexible sucker rod 11. A sucker 13 and a weight rod 14 are provided at the end of the flexible sucker rod 11.

[0023] During oil and gas field extraction operations, the entire device is first transported to a relatively easily accessible area near the oil and gas field. Due to the presence of the vehicle body 1, the device possesses a certain degree of mobility. However, facing complex terrain conditions in oil and gas fields and gas extraction points that are difficult for transport vehicles to reach, the device achieves precise gas extraction operations through its unique structural design. The mounting plate 2 is rotatably mounted on the vehicle body 1. When the operating direction of the device needs to be adjusted, the mounting plate 2 can be rotated to adapt to the direction of the gas extraction point. This rotatable mounting method increases the device's adaptability to different terrain conditions, allowing for flexible adjustment of its operating posture. Even near gas extraction points with slopes or special orientations, the device can be positioned appropriately for operation.

[0024] A shock-absorbing component 4 is installed between the mounting plate 2 and the connecting plate 3. During the movement or operation of the device, especially when the device is working on uneven ground or in an environment with vibration interference, the shock-absorbing component 4 can effectively buffer the impact of various external forces on the internal structure of the device, protect the moving component 6 on the connecting plate 3 and other related components, ensure the stability and reliability of the device, and avoid damage to components or a decrease in operating accuracy due to vibration.

[0025] The movable plate 5 is slidably mounted on top of the connecting plate 3. The movable component 6 on the connecting plate 3 drives the movable plate 5 to move horizontally. When the working position of the flexible sucker rod 11 needs to be adjusted, the movable component 6 operates, driving the movable plate 5 to move along the connecting plate 3, thereby changing the position of components such as the roller 7, pulley 8, and working frame 9. The flexible sucker rod 11 is wound on the roller 7. As the movable plate 5 moves, the flexible sucker rod 11, under the action of the roller 7, and guided by the pulley 8 and auxiliary wheel 10, can flexibly adjust its working position at the wellhead. This movable flexible sucker rod 11 arrangement allows the device to accurately deliver the flexible sucker rod 11 into the wellhead near gas production points that are difficult for transport vehicles to reach, through its own movement and adjustment function, to achieve effective oil and gas field exploitation. The cooperation between the rotating mounting plate 2, the movable plate 5, and the movable component 6 facilitates the adjustment of the gas production equipment position after the vehicle body 1 moves to the vicinity of the gas well, making it easy for the gas production equipment to be accurately positioned directly above the gas well for gas production.

[0026] The flexible sucker rod 11 is equipped with a blowout preventer 12. During the extraction process, when encountering high well pressure or potential blowouts, the blowout preventer 12 plays a crucial protective role, preventing oil and gas from escaping and causing safety accidents and environmental pollution. It also protects the flexible sucker rod 11 from damage caused by the impact of high-pressure oil and gas. The end of the flexible sucker rod 11 is equipped with a pump 13 and a weight rod 14. During operation, the pump 13 extends downhole to extract oil and gas, while the weight rod 14 increases the weight at the end of the flexible sucker rod 11, ensuring its stability downhole, improving extraction efficiency and operational quality, and ensuring that oil and gas can be smoothly extracted from the well, completing the entire drainage and gas production process.

[0027] like Figure 2 As shown, in some embodiments, a circular plate 15 is fixedly installed on the bottom of the mounting plate 2, a rotating groove is constructed on the vehicle body 1, the circular plate 15 is rotatably inserted into the rotating groove, a drive motor 16 is fixedly installed on the vehicle body 1, and the output end of the drive motor 16 is fixedly connected to the bottom of the circular plate 15.

[0028] The rotating groove on the vehicle body 1 mates with the circular plate 15 at the bottom of the mounting plate 2. The circular plate 15 is rotatably inserted into the rotating groove. This structural design allows the mounting plate 2 to rotate stably around the central axis of the circular plate 15 and the rotating groove. When precise adjustment of the working direction of the device is required, the drive motor 16 fixedly mounted on the vehicle body 1 plays a crucial role. The output end of the drive motor 16 is fixedly connected to the bottom of the circular plate 15. When the drive motor 16 starts, the rotational motion of its output end is directly transmitted to the circular plate 15, causing the circular plate 15 to rotate within the rotating groove. This, in turn, allows the entire mounting plate 2, along with the connecting plate 3, the moving plate 5, and related working components (such as the roller 7, pulley 8, and working frame 9), to adjust its direction.

[0029] like Figure 3 As shown, in some embodiments, the damping assembly 4 includes a plurality of dampers 41 fixedly installed between the mounting plate 2 and the connecting plate 3, and a plurality of damping springs 42 are fixedly installed between the mounting plate 2 and the connecting plate 3.

[0030] During oil production equipment operation, vibrations are generated due to downhole pressure changes and the movement of the flexible sucker rod 11. The damper 41 utilizes its internal damping medium (such as oil) and piston structure. When subjected to external forces, the piston moves within the damping medium, generating damping force and consuming the energy from the external forces, thus effectively reducing the amplitude and frequency of vibrations. Simultaneously, the shock-absorbing spring 42, when compressed or stretched, can store and release energy, further buffering the impact of external forces on the device. This ensures that the connecting plate 3 and its components (such as the moving plate 5, roller 7, pulley 8, and working frame 9) maintain a relatively stable position and posture. This shock-absorbing assembly 4, composed of the damper 41 and the shock-absorbing spring 42, forms an effective shock-absorbing system through the damping effect of the damper 41 and the elastic buffering effect of the shock-absorbing spring 42. This not only protects the precision components inside the device from damage and extends the device's service life but also ensures stable operation of the device under complex terrain and harsh working conditions, improving the accuracy and efficiency of gas production operations.

[0031] like Figure 2 As shown, in some embodiments, the moving component 6 includes two positioning plates 61 that are symmetrically distributed and fixedly installed on the top of the connecting plate 3. A lead screw 62 is rotatably installed between the two positioning plates 61. A forward and reverse motor 63 for driving the lead screw 62 to rotate is fixedly installed on one side of one of the positioning plates 61. A sliding plate 64 is fixedly installed on the bottom of the moving plate 5. The sliding plate 64 is threadedly connected to the lead screw 62.

[0032] When the position of the moving plate 5 needs to be adjusted, the forward and reverse motor 63 starts, driving the lead screw 62 to rotate. Since the sliding plate 64 is connected to the lead screw 62 by a thread, the rotational motion of the lead screw 62 is converted into the linear motion of the sliding plate 64. The sliding plate 64 moves along the axial direction of the lead screw 62, thereby driving the moving plate 5 to slide on the top of the connecting plate 3. This threaded transmission method can precisely control the moving distance of the moving plate 5, achieving precise adjustment of the position of the moving plate 5. This allows the device to flexibly adjust the working position of the flexible sucker rod 11 according to the specific conditions of the oil and gas field development site, ensuring that the flexible sucker rod 11 can be accurately aligned with the wellhead, improving the efficiency and accuracy of gas production operations.

[0033] like Figure 4 As shown, in some embodiments, cylinders 17 are fixedly installed at the four opposite corners of the bottom of the vehicle body 1, and a base plate 18 is fixedly installed at the telescopic end of the cylinders 17.

[0034] When the equipment arrives at the oil and gas field extraction site and is ready to begin operations, the four cylinders 17 at the bottom of the vehicle body 1 are activated. The telescopic ends of the cylinders 17 extend outward, causing the base plate 18 to move downward and contact the ground. The relatively large area of ​​the base plate 18 can distribute the weight of the vehicle body 1, thus providing stable support for the equipment on uneven or soft ground. The telescopic function of the cylinders 17 allows the base plate 18 to be adjusted in height according to different ground conditions, further enhancing the stability of the equipment.

[0035] like Figure 3 As shown, in some embodiments, a limiting frame 19 is fixedly installed on the top of the mounting plate 2, and the outer periphery of the connecting plate 3 is slidably connected to the inner periphery of the limiting frame 19.

[0036] The limiting frame 19 allows the connecting plate 3 to move stably up and down when the shock-absorbing component 4 is used for shock absorption, preventing it from moving around randomly and affecting the shock absorption effect.

[0037] like Figure 4 As shown, in some embodiments, a plurality of ground cones 20 are slidably installed in an array on the bottom of the base plate 18.

[0038] The ground cone 20 can be inserted into the ground at the gas extraction location, further improving the stability of the entire device and facilitating stable gas extraction.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A drainage gas recovery device for use in oil and gas field development, characterised in that, Include: The car body (1); The mounting plate (2) is rotatably mounted on the car body (1), and the top of the mounting plate (2) is provided with a connecting plate (3). A damping assembly (4) is installed between the mounting plate (2) and the connecting plate (3); The moving plate (5) is slidably mounted on the top of the connecting plate (3), and the moving assembly (6) is installed on the connecting plate (3). The top of the moving plate (5) is sequentially provided with a roller (7), a pulley (8) and a working frame (9). The top of the working frame (9) is fixedly provided with an auxiliary wheel (10). The flexible sucker rod (11) is wound on the roller (7). The flexible sucker rod (11) is sequentially placed on the pulley (8) and the auxiliary wheel (10). The flexible sucker rod (11) is provided with a blowout prevention box (12). The end of the flexible sucker rod (11) is provided with a sucker (13) and a weight rod (14).

2. The drainage gas recovery device for use in oil and gas fields according to claim 1, characterized in that, The bottom of the mounting plate (2) is fixedly provided with a circular plate (15), and a rotating groove is formed on the car body (1). The circular plate (15) is rotatably inserted into the rotating groove. The driving motor (16) is fixedly installed on the car body (1), and the output end of the driving motor (16) is fixedly connected with the bottom of the circular plate (15).

3. The drainage gas recovery device for use in oil and gas fields according to claim 1, characterized in that, The damping assembly (4) includes a plurality of dampers (41) fixedly installed between the mounting plate (2) and the connecting plate (3). A plurality of damping springs (42) are fixedly installed between the mounting plate (2) and the connecting plate (3).

4. The drainage gas recovery device for use in oil and gas fields according to claim 1, characterized in that, The moving assembly (6) includes two positioning plates (61) fixedly installed on the top of the connecting plate (3) in a symmetrical manner. A lead screw (62) is rotatably installed between the two positioning plates (61). One side of one of the positioning plates (61) is fixedly provided with a forward and reverse motor (63) for driving the lead screw (62) to rotate. The bottom of the moving plate (5) is fixedly provided with a sliding plate (64), and the sliding plate (64) is threadedly connected with the lead screw (62).

5. The water drainage gas recovery device for oil and gas fields according to claim 1, characterized in that, Four air cylinders (17) are fixedly installed at the four diagonal positions of the bottom of the car body (1). The telescopic end of the air cylinder (17) is fixedly provided with a bottom plate (18).

6. The water drainage gas recovery device for oil and gas fields according to claim 1, characterized in that, The top of the mounting plate (2) is fixedly provided with a limiting frame (19), and the outer periphery of the connecting plate (3) is slidably connected with the inner periphery of the limiting frame (19).

7. The drainage gas recovery device for use in oil and gas fields according to claim 5, characterized in that, The bottom of the bottom plate (18) is slidably provided with a plurality of ground cones (20) in an array.

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