Underground maintenance device for petroleum operation

Abstract

The utility model discloses a petroleum operation underground maintenance device which comprises a U-shaped frame, the bottom of the U-shaped frame is fixedly connected with two bases, each base is provided with two locking pieces, the inner top of the U-shaped frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a worm, and the output end of the worm is fixedly connected with a nut. The top of the U-shaped frame is fixedly connected with a support, the worm is rotationally connected with the support, the top of the U-shaped frame is fixedly connected with two fixing plates, the support is fixedly connected with the fixing plate on the right side, the two fixing plates are jointly rotationally connected with a rotating rod, and the outer wall of the rotating rod is fixedly connected with a winding roller. According to the utility model, the device can be fixed by arranging the locking piece, so that the stability of the device is ensured when the device descends into a well; through cooperation of a distance measuring sensor and a carbon dioxide concentration sensor, the maintenance basket can be prevented from colliding with the well wall, the concentration of carbon dioxide in the well is detected, and the health of workers is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of downhole maintenance equipment technology, and in particular to a downhole maintenance equipment for oil operations. Background Technology

[0002] The prior art discloses an oil well maintenance device with application number CN201922139685.9, which includes a motor. The output shaft of the motor is fixedly connected to a transmission shaft. A roller and two bearings are fixedly connected to the outer wall of the transmission shaft. A first steel wire rope is wound around the outer wall of the roller. A ring is fixedly connected to the end of the first steel wire rope away from the roller. Four second steel wire ropes are fixedly connected to the outer wall of the ring. A housing is fixedly connected to the end of each second steel wire rope away from the ring. This utility model addresses the problem of inconvenient power supply for tools used in oil well maintenance operations. By utilizing the structure of the housing, cabinet, and battery, the device can be smoothly lowered into the well and can rotate its own angle, facilitating downhole maintenance by workers at different depths and angles. The cabinet can store the tools, and with the battery, the power can be connected and the tools can be used at close range, improving the efficiency of downhole work.

[0003] The aforementioned authorized patents allow for downhole maintenance, but when lowering the device into the well, it lacks a positioning device and relies solely on casters for movement. This leads to instability and random movement, posing a risk to personnel. Furthermore, the maintenance basket may collide with the well wall during descent, increasing the risk of collision. Additionally, the high carbon dioxide concentration in the well air poses a health hazard to workers. To address these issues, this application proposes a downhole maintenance device for oil operations. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a downhole maintenance device for oil operations. This device can be secured by a locking mechanism, ensuring its stability during downhole operation. Furthermore, the combination of a distance sensor and a carbon dioxide concentration sensor prevents the maintenance basket from colliding with the well wall and detects the carbon dioxide concentration inside the well, thus protecting the health of the workers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A downhole maintenance device for oil well operations includes a U-shaped frame. Two bases are fixedly connected to the bottom of the U-shaped frame, and each base has two locking components. A motor is fixedly connected to the inner top of the U-shaped frame, and a worm gear is fixedly connected to the output end of the motor. The worm gear passes through the U-shaped frame and is rotatably connected to it. A bracket is fixedly connected to the top of the U-shaped frame, and the worm gear is rotatably connected to the bracket. Two fixing plates are fixedly connected to the top of the U-shaped frame. The bracket is fixedly connected to the right-side fixing plate. A rotating rod is rotatably connected to both fixing plates. A take-up roller is fixedly connected to the outer wall of the rotating rod, and a worm wheel is fixedly connected to the outer wall of the rotating rod. The worm gear and the worm wheel... The winding rollers are meshed together, with a steel wire rope wound around their outer wall. The end of the steel wire rope is fixedly connected to an oil well maintenance basket. Two symmetrically arranged limiting devices are installed on the oil well maintenance basket. Multiple lights are fixedly connected to the outer wall of the oil well maintenance basket. Distance sensors are fixedly connected to all four sides of the oil well maintenance basket. A central processing unit is fixedly connected to the inner top of the oil well maintenance basket. A carbon dioxide concentration sensor and an alarm light are fixedly connected to the top of the oil well maintenance basket. A control panel is fixedly connected to the inner wall of the oil well maintenance basket. A battery is fixedly connected to the bottom of the oil well maintenance basket.

[0007] Preferably, the base has four support legs fixedly connected to its bottom, and each support leg has a rotatable wheel rotatably connected to its bottom. The four wheels are arranged in a rectangular pattern.

[0008] Preferably, the locking element includes a screw and a handle, the screw is fixedly connected to the handle, the screw passes through the base and is threadedly connected to it, and the bottom of the screw is tapered.

[0009] Preferably, the locking element includes a screw and a handle, the screw is fixedly connected to the handle, the screw passes through the base and is threadedly connected to it, and the bottom of the screw is tapered.

[0010] Preferably, the limiting component includes a threaded rod, a handle, and a locking block. The threaded rod is fixedly connected to the handle and the locking block. The threaded rod passes through the downhole maintenance basket of the oil operation and is threadedly connected to it. The opposite ends of the two locking blocks are provided with anti-slip features.

[0011] Preferably, the plurality of lighting lamps are distributed at equal intervals.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. The operator holds the handle and rotates it to drive the screw to rotate until the screw moves down and inserts into the ground, thus completing the limit of the device and making the device stable during subsequent operation.

[0014] 2. The motor output drives the worm gear, worm wheel, rotating rod, and take-up roller to rotate, thus releasing the wire rope and allowing the oil well maintenance basket to move down into the oil well. At this time, the worker holds the handle and rotates it to drive the threaded rod and the locking blocks to rotate until the two locking blocks abut against the well wall, completing the installation and fixation of the oil well maintenance basket. This facilitates maintenance of the oil well and ensures stability during maintenance.

[0015] 3. The distance sensor can measure the distance between the oil well maintenance basket and the well wall when the well is being lowered. When the distance is less than the threshold, the central processing unit will control the alarm light to sound an alarm, so as to avoid the oil well maintenance basket from colliding with the well wall and causing injury to the personnel.

[0016] 4. The carbon dioxide concentration sensor can measure the concentration of carbon dioxide in the well when it is lowered into the well. When the concentration of carbon dioxide is lower than the threshold, the central processing unit will control the alarm light to sound an alarm, reminding people that the concentration of carbon dioxide in the well is too high and the concentration of oxygen is too low, indicating that there is insufficient oxygen.

[0017] In summary, the device can be secured by locking components, ensuring its stability when lowered into the well. The combination of a distance sensor and a carbon dioxide concentration sensor prevents the maintenance basket from colliding with the well wall and detects the carbon dioxide concentration inside the well, thus protecting the health of the personnel. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of a downhole maintenance device for oil operations proposed in this utility model;

[0019] Figure 2 This is a rear view structural diagram of a downhole maintenance device for oil operations proposed in this utility model.

[0020] In the diagram: 1 U-shaped frame, 2 base, 3 casters, 4 locking mechanism, 5 motor, 6 worm gear, 7 bracket, 8 worm wheel, 9 rotating rod, 10 fixing plate, 11 winding roller, 12 wire rope, 13 oil well maintenance basket, 14 limit switch, 15 lighting, 16 distance sensor, 17 central processing unit, 18 carbon dioxide concentration sensor, 19 alarm light, 20 control panel, 21 battery. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-2A downhole maintenance device for oil well operations includes a U-shaped frame 1. Two bases 2 are fixedly connected to the bottom of the U-shaped frame 1. Four support legs are fixedly connected to the bottom of the bases 2. Each support leg is rotatably connected to a movable wheel 3. The four movable wheels 3 are arranged in a rectangular pattern. Two locking components 4 are installed on each base 2. The locking component 4 includes a screw and a handle. The screw is fixedly connected to the handle. The screw passes through the base 2 and is threaded to it. The bottom of the screw is tapered. The movable wheels 3 allow the device to move, and the locking components 4 limit the device's movement, ensuring its stability during maintenance.

[0023] A motor 5 is fixedly connected to the inner top of the U-shaped frame 1. A worm gear 6 is fixedly connected to the output end of the motor 5. The worm gear 6 passes through the U-shaped frame 1 and is rotatably connected to it. A bracket 7 is fixedly connected to the top of the U-shaped frame 1. The worm gear 6 is rotatably connected to the bracket 7. Two fixed plates 10 are fixedly connected to the top of the U-shaped frame 1. The bracket 7 is fixedly connected to the right fixed plate 10. A rotating rod 9 is rotatably connected to both fixed plates 10. A take-up roller 11 is fixedly connected to the outer wall of the rotating rod 9. A worm wheel 8 is fixedly connected to the outer wall of the rotating rod 9. The worm gear 6 meshes with the worm wheel 8. The self-locking property of the worm wheel and worm gear can make the oil well maintenance basket 13 rise and fall stably, avoiding damage to the motor 5 and causing it to fall, which would endanger the safety of the workers.

[0024] A steel wire rope 12 is wound around the outer wall of the take-up roller 11. One end of the steel wire rope 12 is fixedly connected to the outer wall of the take-up roller 11. An opening is provided through the U-shaped frame 1, through which the steel wire rope 12 passes. The end of the steel wire rope 12 is fixedly connected to an oil well maintenance basket 13. Workers can ride on the oil well maintenance basket 13 to go down into the well and perform maintenance on the well wall.

[0025] Two symmetrically arranged limiting components 14 are installed on the oil well maintenance basket 13. Each limiting component 14 includes a threaded rod, a handle, and a locking block. The threaded rod is fixedly connected to both the handle and the locking block. The threaded rod passes through the oil well maintenance basket 13 and is threaded thereto. Anti-slip textures are provided on the opposite ends of the two locking blocks. By abutting the locking blocks against the well wall, the installation of the oil well maintenance basket 13 is completed, ensuring its stability during maintenance. Multiple lighting lamps 15 are fixedly connected to the outer wall of the oil well maintenance basket 13. These lamps are evenly spaced and illuminate the well wall, providing a light source. Distance sensors 16 are fixedly connected to all four sides of the oil well maintenance basket 13. These sensors measure the distance between the oil well maintenance basket 13 and the well wall. A central processing unit 17 is fixedly connected to the top of the oil well maintenance basket 13. A distance sensor 16 is electrically connected to the central processing unit 17. When the distance between the oil well maintenance basket 13 and the well wall is less than a threshold, the central processing unit 17 controls the alarm light 19 to sound an alarm. A carbon dioxide concentration sensor 18 and an alarm light 19 are fixedly connected to the top of the oil well maintenance basket 13. The carbon dioxide concentration sensor 18 is electrically connected to the central processing unit 17. When the downhole carbon dioxide concentration is less than a threshold, the central processing unit 17 controls the alarm light 19 to sound an alarm. A control panel 20 is fixedly connected to the inner wall of the oil well maintenance basket 13. The motor 5 can be rotated forward and backward through the control panel 20. A battery 21 is fixedly connected to the bottom of the oil well maintenance basket 13 to provide power to various electrical appliances.

[0026] In this invention, the movable wheel 3 allows the device to be pushed around the oil well. Upon reaching the destination, the operator grips the handle and rotates it to rotate the screw until it descends and inserts into the ground, thus limiting the device and ensuring its stability during subsequent operation. The operator then sits inside the oil well maintenance basket 13 and controls the forward and reverse rotation of the motor 5 via the control panel 20. The motor 5's output drives the worm gear 6, worm wheel 8, rotating rod 9, and take-up roller 11 to rotate, releasing the wire rope 12 and lowering the oil well maintenance basket 13 into the well. Once the basket reaches the appropriate depth, the operator grips the handle and rotates it to rotate the threaded rod and locking blocks until the two locking blocks engage with the oil well. The well walls of the working well are aligned to complete the installation and fixation of the oil well maintenance basket 13, facilitating maintenance and ensuring stability during maintenance. The well is illuminated by a lighting lamp 15. A distance sensor 16 measures the distance between the maintenance basket 13 and the well wall during descent. If the distance is less than a threshold, the central processing unit 17 controls the alarm light 19 to sound an alarm, preventing the maintenance basket 13 from colliding with the well wall and causing injury. A carbon dioxide concentration sensor 18 measures the carbon dioxide concentration in the well during descent. If the carbon dioxide concentration is less than a threshold, the central processing unit 17 controls the alarm light 19 to sound an alarm, indicating excessive carbon dioxide and low oxygen levels, suggesting insufficient oxygen.

[0027] This invention solves the problems of existing technologies that lack positioning devices and rely solely on casters for movement, leading to instability and random movement when lowering the device into the well. This is achieved by incorporating locking components, a distance sensor, and a carbon dioxide concentration sensor. Furthermore, the existing technology addresses the risks of collisions between the maintenance basket and the well wall, as well as the health hazards posed by the high carbon dioxide concentration in the well air.

Claims

1. A downhole maintenance device for oil operations, comprising a U-shaped frame (1), characterized in that, Two bases (2) are fixedly connected to the bottom of the U-shaped frame (1), and two locking parts (4) are installed on each base (2). A motor (5) is fixedly connected to the inner top of the U-shaped frame (1), and a worm gear (6) is fixedly connected to the output end of the motor (5). The worm gear (6) passes through the U-shaped frame (1) and is rotatably connected to it. A bracket (7) is fixedly connected to the top of the U-shaped frame (1), and the worm gear (6) is rotatably connected to the bracket (7). Two fixing plates (10) are fixedly connected to the top of the U-shaped frame (1). The bracket (7) is fixedly connected to the fixing plate (10) on the right side. The two fixing plates (10) are rotatably connected to a rotating rod (9). A take-up roller (11) is fixedly connected to the outer wall of the rotating rod (9), and a worm wheel (8) is fixedly connected to the outer wall of the rotating rod (9). The worm gear (6) meshes with the worm wheel (8). A steel wire rope (12) is wound around the outer wall of the roller (11). The end of the steel wire rope (12) is fixedly connected to an oil well maintenance basket (13). Two symmetrically arranged limiting parts (14) are installed on the oil well maintenance basket (13). Multiple lighting lamps (15) are fixedly connected to the outer wall of the oil well maintenance basket (13). Distance sensors (16) are fixedly connected to all four sides of the oil well maintenance basket (13). A central processing unit (17) is fixedly connected to the inner top of the oil well maintenance basket (13). A carbon dioxide concentration sensor (18) and an alarm light (19) are fixedly connected to the top of the oil well maintenance basket (13). A control panel (20) is fixedly connected to the inner wall of the oil well maintenance basket (13). A storage battery (21) is fixedly connected to the bottom of the oil well maintenance basket (13).

2. The downhole maintenance device for oil operations according to claim 1, characterized in that, The base (2) has four support legs fixedly connected to its bottom. Each support leg has a movable wheel (3) rotatably connected to its bottom. The four movable wheels (3) are arranged in a rectangular pattern.

3. The downhole maintenance device for oil operations according to claim 1, characterized in that, The locking component (4) includes a screw and a handle. The screw is fixedly connected to the handle. The screw passes through the base (2) and is threadedly connected to it. The bottom of the screw is tapered.

4. The downhole maintenance device for oil operations according to claim 1, characterized in that, One end of the wire rope (12) is fixedly connected to the outer wall of the winding roller (11), and an opening is provided through the U-shaped frame (1), through which the wire rope (12) passes.

5. The downhole maintenance device for oil operations according to claim 1, characterized in that, The limiting component (14) includes a threaded rod, a handle, and a locking block. The threaded rod is fixedly connected to the handle and the locking block. The threaded rod passes through the oil well maintenance basket (13) and is threadedly connected to it. The opposite ends of the two locking blocks are provided with anti-slip textures.

6. The downhole maintenance device for oil operations according to claim 1, characterized in that, The multiple lighting lamps (15) are distributed at equal intervals.

Images