A natural gas production well plugging device

Abstract

The utility model discloses a natural gas exploitation well plugging device belongs to natural gas exploitation field, a natural gas exploitation well plugging device, including mobile frame, mobile frame lower extreme both sides all fixed mounting have two universal wheel, mobile frame upper end middle part swingly installed have movable support, movable support upper end fixed mounting have drive mechanism, drive mechanism bottom fixed mounting have connecting block, connecting block outside fixed mounting have the plugging seat, movable support includes movable rod, support plate and baffle, it can realize through setting mobile frame drive mechanism movement, drive mechanism bottom is equipped with connecting block and can be connected with the plugging seat fast, will drive mechanism and plugging seat move to natural gas exploitation well upper end, and drive mechanism can control plugging seat and descend automatically complete the plugging of exploitation well, the setting of this structure, improve natural gas exploitation well plugging efficiency, reduce artificial cost, and the dismounting of plugging seat is convenient.

Description

Technical Field

[0001] This utility model relates to the field of natural gas extraction, and more specifically, to a natural gas well plugging device. Background Technology

[0002] Natural gas, like crude oil, is buried in closed geological structures underground. Some are stored in the same strata as crude oil, while others exist separately. Natural gas stored in the same strata as crude oil is extracted along with the crude oil. Natural gas reservoirs containing only single-phase gas are called gas reservoirs, and their extraction methods are very similar to those for crude oil, but also have their own unique features.

[0003] Chinese Patent Publication No. CN217538639U discloses a natural gas well plugging device. This patent features a clamping assembly. After the plugging column is installed, a top plate is mounted on the upper side of the plugging column via a conical rod. The conical rod is inserted into the ground until the lower end of the fixing plate contacts the ground. Several protrusions are provided on the lower side of the conical rod to increase the friction between the conical rod and the ground, thereby improving the fixing effect of the conical rod on the top plate. Then, a throttle is used to drive the threaded rod to rotate. The rotation of the threaded rod causes the fixing frame to move downward. The sliding rod limits the fixing frame, preventing it from rotating with the threaded rod. The movement of the fixing frame causes a U-shaped pressure block to press the upper end of the plugging column, preventing excessive pressure inside the wellhead from causing displacement of the plugging column, which could create gaps between the plugging column and the wellhead, affecting the plugging quality.

[0004] The aforementioned natural gas well plugging device requires manual plugging of the natural gas well, resulting in slow plugging speed, low efficiency, and inconvenience in removing the plugging column. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a natural gas well plugging device. It can achieve the following by setting a movable frame to drive the drive mechanism to move. The bottom of the drive mechanism is equipped with a connecting block that can be quickly connected to the plugging seat. The drive mechanism and the plugging seat are moved to the upper end of the natural gas well. The drive mechanism can control the plugging seat to move down to automatically complete the plugging of the well. The design of this structure improves the plugging efficiency of natural gas wells, reduces labor costs, and facilitates the disassembly and assembly of the plugging seat.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A natural gas well plugging device includes a movable frame. Four casters are fixedly mounted in a rectangular array on the lower side of the movable frame. A plugging seat is provided on the lower side of the movable frame. A drive mechanism for driving the plugging seat to move up and down is provided on the upper side of the movable frame. A connecting component is provided between the drive mechanism and the plugging seat. The plugging seat is conical in shape. A washer made of rubber is fixedly embedded on the outer side of the plugging seat. An insertion hole is provided on the upper side of the plugging seat. Four slots are formed in a ring array around the axis of the insertion hole on the circumferential side of the insertion hole.

[0010] The drive mechanism includes a movable bracket that is movably connected to the upper side of the movable frame. A servo motor is provided on the upper side of the movable bracket, and a screw is rotatably connected to the lower side of the movable bracket. The lower end of the screw passes through the movable frame and is connected to the connecting component.

[0011] The connecting assembly includes a connecting block inserted into a socket, the diameter of which is the same as the diameter of the socket. The circumferential side of the connecting block has four storage slots arranged in a ring around the axis of the connecting block. A locking block that moves along the diameter of the connecting block is slidably connected in the storage slot. A magnetic block is fixedly embedded inside the locking block. An electromagnet is fixedly embedded in the center of the connecting block. The electromagnet is magnetically connected to the magnetic block. The shape of the locking block matches the shape of the locking slot.

[0012] Furthermore, the movable support includes movable rods, a support plate, and a baffle. Multiple movable rods are fixedly connected to the four corners of the lower side of the support plate. The movable rods are movably inserted into the movable frame, and the lower ends of the movable rods pass through the movable frame and are fixedly connected to the baffle.

[0013] Furthermore, a motor cover is provided on the upper side of the movable bracket, the servo motor is located inside the motor cover, and multiple heat dissipation holes are provided through the outer side of the motor cover.

[0014] Furthermore, the storage slot has symmetrically provided limiting grooves on its upper and lower sides, and the card block has limiting blocks on its upper and lower sides, with the limiting blocks being movably engaged within the limiting grooves.

[0015] Furthermore, a control panel is fixedly installed on the upper right side of the mobile frame, and the control panel is electrically connected to the servo motor and the electromagnet.

[0016] 3. Beneficial Effects

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] (1) This solution can achieve the movement of the drive mechanism by setting up a moving frame. The bottom of the drive mechanism is equipped with a connecting block that can be quickly connected to the plugging seat. The drive mechanism and the plugging seat are moved to the upper end of the natural gas production well. The drive mechanism can control the plugging seat to move down and automatically complete the plugging of the production well. The setting of this structure improves the plugging efficiency of natural gas production wells, reduces labor costs, and facilitates the disassembly and assembly of the plugging seat.

[0019] (2) Start the servo motor, which can drive the screw to rotate. Since the screw is threadedly connected to the moving frame, the drive mechanism moves up and down as a whole when the screw rotates, and simultaneously drives the movable bracket to move up and down. The movable bracket supports and limits the servo motor.

[0020] (3) By setting the shape of the plugging seat to be conical, the plugging seat can meet the plugging of natural gas wells of different diameters, thereby improving the practicality of the plugging seat. In addition, the gasket on the outside of the plugging seat can improve the sealing performance of the plugging seat.

[0021] (4) Insert the connecting block into the corresponding hole on the sealing seat, align the slot with the block, change the current direction of the electromagnet so that the electromagnet and the magnetic block repel each other, push the block outward and insert it into the slot, and complete the connection between the connecting block and the sealing seat. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the natural gas well plugging device in use according to this utility model;

[0023] Figure 2 This is a cross-sectional view of the connecting block in this utility model;

[0024] Figure 3 This is a schematic diagram of the sealing seat in this utility model;

[0025] Figure 4 This is a front view of the movable support in this utility model.

[0026] Explanation of the labels in the diagram:

[0027] 1. Moving frame; 2. Casters; 3. Control panel; 4. Movable bracket; 41. Support plate; 42. Movable rod; 43. Baffle; 5. Motor cover; 51. Heat dissipation hole; 6. Screw; 7. Connecting block; 71. Limiting groove; 72. Locking block; 721. Limiting block; 73. Magnetic block; 74. Electromagnet; 8. Sealing seat; 81. Washer; 82. Socket; 83. Slot. Detailed Implementation

[0028] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Example 1:

[0032] Please see Figure 1 A natural gas well plugging device includes a movable frame 1. Four casters 2 are fixedly installed on the lower side of the movable frame 1 in a rectangular array by bolts. A plugging seat 8 is provided on the lower side of the movable frame 1. A driving mechanism for driving the plugging seat 8 to move up and down is provided on the upper side of the movable frame 1. A connecting component is provided between the driving mechanism and the plugging seat 8.

[0033] In use, the operator pushes the movable frame 1 to move the plugging seat 8 above the natural gas production well. Then, the operator can drive the connecting components and the plugging seat 8 up and down through the drive mechanism, thereby improving the production efficiency of the plugging seat 8 in plugging the natural gas production well.

[0034] Please see Figure 1The drive mechanism includes a movable bracket 4 that is movably connected to the upper side of the movable frame 1. A servo motor is installed on the upper side of the movable bracket 4, and a screw 6 is rotatably connected to the lower side of the movable bracket 4. The lower end of the screw 6 passes through the movable frame 1 and is connected to the connecting component. When in use, the servo motor is started, which can drive the screw 6 to rotate. Since the screw 6 is threadedly connected to the movable frame 1, the drive mechanism moves up and down as a whole when the screw 6 rotates, and synchronously drives the movable bracket 4 to move up and down. The movable bracket 4 supports and limits the servo motor.

[0035] Please see Figure 1 and Figure 4 The movable support 4 includes movable rods 42, support plate 41, and baffle 43. Multiple movable rods 42 are fixedly connected to the four corners of the lower side of the support plate 41. The movable rods 42 are movably inserted into the movable frame 1, and the lower end of the movable rods 42 passes through the movable frame 1 and is fixedly connected to the baffle 43. In use, the movable support 4 can slide up and down in the middle of the upper part of the movable frame 1, which facilitates the movable support 4 to support and limit the drive mechanism.

[0036] Please see Figure 1 The upper side of the movable bracket 4 is bolted with a motor cover 5. The servo motor is located inside the motor cover 5, and multiple heat dissipation holes 51 are provided through the outside of the motor cover. In use, the heat dissipation holes 51 on the outside of the motor cover 5 can help dissipate heat from the servo motor, which is beneficial to the protection of the servo motor and the sealing device.

[0037] Please see Figure 1 and Figure 3 The sealing seat 8 is conical in shape, and a washer 81 is fixedly embedded on the outside of the sealing seat 8. The washer 81 is made of rubber. An insertion hole 82 is provided in the middle of the upper end of the sealing seat 8. Four slots 83 are arranged in a ring array on the circumferential side of the insertion hole 82 with the axis of the insertion hole 82 as the center. In use, by making the shape of the sealing seat 8 conical, the sealing seat 8 can meet the sealing of natural gas wells of different diameters, thereby improving the practicality of the sealing seat 8. In addition, the washer 81 on the outside of the sealing seat 8 can improve the sealing performance of the sealing seat 8.

[0038] Please see Figure 2 and Figure 3The connecting assembly includes a connecting block 7 inserted into a socket 82. The diameter of the connecting block 7 is the same as the diameter of the socket 82. Four storage slots are arranged in a ring around the axis of the connecting block 7 on its circumferential side. A locking block 72 that moves along the diameter of the connecting block is slidably connected in the storage slot. A magnet 73 is fixedly embedded inside the locking block 72. An electromagnet 74 is fixedly embedded in the center of the connecting block 7. The electromagnet 74 is magnetically connected to the magnet 73. The shape of the locking block 72 matches that of the slot 83. The storage slot has symmetrically provided limiting grooves 71 on its upper and lower sides, and the card block 72 has limiting blocks 721 on its upper and lower sides. The limiting blocks 721 are movably locked in the limiting grooves 71. In use, the connecting block 7 is inserted into the corresponding insertion hole 82 on the sealing seat 8, and the card slot 83 is aligned with the position of the card block 72. The current direction of the electromagnet 74 is changed so that the electromagnet 74 and the magnetic block 73 repel each other, pushing the card block 72 to move outward and lock into the card slot 83, thus completing the connection between the connecting block 7 and the sealing seat 8.

[0039] Please see Figure 1 A control panel 3 is fixedly installed on the upper right side of the mobile frame 1. The control panel 3 is electrically connected to the servo motor and electromagnet 74. When in use, the operator can control the device by touching the control panel 3.

[0040] The working principle of this utility model is as follows: First, the sealing seat 8 is placed at the lower end of the connecting block 7. The connecting block 7 is inserted into the corresponding insertion hole 82 on the sealing seat 8, and the slot 83 is aligned with the position of the slot 72. The current direction of the electromagnet 74 is changed, so that the electromagnet 74 and the magnetic block 73 repel each other magnetically, pushing the slot 72 to move outward and into the slot 83, thus completing the connection between the connecting block 7 and the sealing seat 8. The drive mechanism is started to move the sealing seat 8 upward and reset it. Then, the device is moved to the upper position of the natural gas well, so that the sealing seat 8 is above the well. The servo motor is started, which can drive the screw 6 to rotate. Since the screw 6 is threadedly connected to the moving frame 1, the drive mechanism moves downward as a whole when the screw 6 rotates, and simultaneously drives the movable bracket 4 to move up and down. The movable bracket 4 supports and limits the servo motor, and the sealing seat 8 moves down and is inserted into the natural gas well to complete the sealing work.

[0041] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A natural gas well plugging device, comprising a movable frame (1), characterized in that: The lower side of the movable frame (1) is fixedly equipped with four universal wheels (2) in a rectangular array. The lower side of the movable frame (1) is provided with a sealing seat (8). The upper side of the movable frame (1) is provided with a driving mechanism for driving the sealing seat (8) to move up and down. A connecting component is provided between the driving mechanism and the sealing seat. The sealing seat (8) is conical in shape. A washer (81) is fixedly embedded on the outer side of the sealing seat (8). The washer (81) is made of rubber. The upper side of the sealing seat (8) is provided with a socket (82). The circumferential side of the socket (82) is provided with four slots (83) arranged in a ring array with the axis of the socket (82) as the center. The driving mechanism includes a movable bracket (4) that is movably connected to the upper side of the movable frame (1). A servo motor is provided on the upper side of the movable bracket (4), and a screw (6) is rotatably connected to the lower side of the movable bracket (4). The lower end of the screw (6) passes through the movable frame (1) and is connected to the connecting component. The connecting assembly includes a connecting block (7) inserted into a socket (82). The diameter of the connecting block (7) is the same as the diameter of the socket (82). The circumferential side of the connecting block (7) is provided with four storage slots arranged in a ring array with the axis of the connecting block (7) as the center. A card block (72) that moves along the diameter of the connecting block is slidably connected in the storage slot. A magnetic block (73) is fixedly embedded inside the card block (72). An electromagnet (74) is fixedly embedded in the center of the connecting block (7). The electromagnet (74) is magnetically connected to the magnetic block (73). The shape of the card block (72) matches that of the card slot (83).

2. The natural gas well plugging device according to claim 1, characterized in that: The movable support (4) includes a movable rod (42), a support plate (41) and a baffle (43). Multiple movable rods (42) are fixedly connected to the four corners of the lower side of the support plate (41). The movable rods (42) are movably inserted into the movable frame (1), and the lower end of the movable rods (42) passes through the movable frame (1) and is fixedly connected to the baffle (43).

3. The natural gas well plugging device according to claim 1, characterized in that: The upper side of the movable bracket (4) is provided with a motor cover (5), the servo motor is located inside the motor cover (5), and multiple heat dissipation holes (51) are opened through the outer side of the motor cover.

4. A natural gas well plugging device according to claim 1, characterized in that: The storage slot has symmetrically provided limiting grooves (71) on its upper and lower sides, and the card block (72) has limiting blocks (721) on its upper and lower sides. The limiting blocks (721) are movably locked in the limiting grooves (71).

5. A natural gas well plugging device according to claim 1, characterized in that: A control panel (3) is fixedly installed on the upper right side of the mobile frame (1), and the control panel (3) is electrically connected to the servo motor and the electromagnet (74).

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