Automatic sealing device for oil well polish rod
By introducing detection and filling components into the oil well bar sealing device, the sealing materials are automatically detected and filled, and the problems of degradation of sealing performance and leakage are solved, automatic sealing and strengthening sealing are achieved, and oil and gas losses and safety hazards are reduced.
Patent Information
- Application Number
- CN202421025434.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-13
AI Technical Summary
The existing oil well bar sealing device will degrade the sealing performance due to wear during use, and lack the function of automatically detecting and preventing leakage, resulting in potential oil and gas losses and safety hazards.
An automatic sealing device for oil wells is designed, including detection device, filling component and control component. By detecting leakage and automatically filling the sealing material to prevent leakage, combined with universal ball head correction and rubber gate assembly, automatic sealing and strengthening is achieved. seal.
Effectively detect and stop leakage, extend the service life of the sealing device, reduce oil and gas losses, and improve the safety and sealing performance of the wellhead.
Smart Images
Figure CN222207847U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil well polished rods, in particular to an automatic sealing device for oil well polished rods. Background Art
[0002] In the process of oil and gas field exploitation, most of the time, a pumping unit is used to drive a rod pumping device, in which a bare rod is a special solid steel rod connected to the top of the pumping rod. The bare rod sealing device used in most rod pumping wells is a common bare rod sealer, that is, a conventional fixed rubber gate.
[0003] For example, the Chinese patent publication number CN217176554U, "A self-sealing device for a bare rod of an oil pumping well", discloses the following technical solution: A self-sealing device for a bare rod of an oil pumping well, belonging to the technical field of oil pumping well equipment. A lower pressure bag is arranged in the lower shell, a lower packing is arranged in the center hole of the lower pressure bag, and a lower ball cap is arranged on the upper part of the lower pressure bag; the upper part of the lower shell is threadedly connected to the upper shell, a sealing gasket is arranged between the lower shell and the upper shell, an upper pressure bag is arranged inside the lower shell, an upper packing is arranged in the center hole of the upper pressure bag, an upper ball cap is arranged on the upper part of the upper pressure bag, a pressure cap is arranged on the upper part of the upper packing, and a pressure cap is threadedly connected to the upper part of the upper shell, and a handle is symmetrically arranged on the outer wall of the pressure cap; the pressure assembly is arranged on the side, and the upper, middle and lower parts are connected to the upper pressure bag, the lower pressure bag, the lower pressure bag and the lower shell respectively. The utility model utilizes the oil well's own pressure to seal the bare rod, does not require on-the-job workers to tighten the packing, reduces the workers' labor intensity, is easy to install and operate, has good sealing of the wellhead packing, has a long packing service life, effectively prevents wellhead oil leakage, reduces oil and gas losses, and protects.
[0004] However, in actual use, as the light rod is continuously used, the device for sealing the light rod will continue to wear and thus weaken the sealing performance. Unless it is constantly inspected and maintained, the sealing device will leak at a certain outbreak point in the future. The utility model is not convenient for stopping the leakage in the event of a sudden leakage of the sealing device, and is not convenient for playing a safety role. Utility Model Content
[0005] 1. Technical issues to be solved
[0006] In view of the deficiencies of the prior art, the utility model provides an automatic sealing device for an oil well polished rod.
[0007] (II) Technical solution
[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil well polished rod automatic sealing device, comprising a polished rod sealer body, a polished rod is arranged on the inner surface of the polished rod sealer body, a detection device is fixedly installed above the polished rod sealer body, a docking assembly is arranged on the right side of the polished rod sealer body, a filling assembly is arranged on the right side of the docking assembly, the filling assembly comprises a mounting seat, an injection bin is fixedly connected to the left side of the mounting seat, an interface is fixedly connected to the left side of the injection bin, an electric push rod is fixedly connected to the right side of the inner surface of the injection bin, a push plate is fixedly connected to the left end of the electric push rod, a control assembly is arranged above the injection bin, and a body assembly is arranged below the injection bin.
[0009] Preferably, the docking assembly includes an injection port, which is fixedly connected to the right side of the light rod sealer body, a sealing docking seat is fixedly connected to the right side of the injection port, a threaded sealing cover is threadedly connected to the right side of the sealing docking seat, and the threaded sealing cover is rotatably connected to the outer surface of the interface.
[0010] Preferably, the control component includes a monitoring unit, a transmission unit is arranged on the right side of the monitoring unit, the transmission unit is electrically connected to the electric push rod, and the monitoring unit is signal-connected to the detection device.
[0011] Preferably, the main body component includes a universal ball head type deviation correction, which is arranged on the outer surface of the polished rod sealer body, a sealing pressure cap is fixedly connected to the top of the polished rod sealer body, a clamp head is fixedly connected to the bottom of the polished rod sealer body, a longitudinal and transverse translation type deviation correction is arranged on the outer surface of the polished rod sealer body, and a rubber gate assembly is fixedly connected to the outer surface of the polished rod sealer body.
[0012] Preferably, the control component is electrically connected to the monitoring unit.
[0013] Preferably, filling particles are provided on the inner surface of the injection bin.
[0014] (III) Beneficial effects
[0015] Compared with the prior art, the utility model provides an oil well polished rod automatic sealing device, which has the following beneficial effects:
[0016] 1. This oil well polished rod automatic sealing device connects the filling component to the polished rod sealer body through a docking component. When the polished rod sealer body leaks, it will be detected by the detection device. At this time, the filling component will fill the inner surface of the polished rod sealer body to stop the leakage.
[0017] Second, the oil well polished rod automatic sealing device can be easily installed on the polished rod body through the main body component, seal the polished rod body, and install the filling component at the same time to achieve the effect of strengthening the sealing. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 This is an enlarged state diagram of the filling component of the utility model.
[0021] In the figure: 1. main body of the light rod sealer; 2. light rod; 3. detection device; 4. docking assembly; 401. injection port; 402. sealing docking seat; 403. threaded sealing cover; 5. filling assembly; 501. mounting seat; 502. injection chamber; 503. interface; 504. electric push rod; 505. push plate; 6. control assembly; 601. monitoring unit; 602. transmission unit; 7. main body assembly; 701. universal ball head type deviation correction; 702. sealing pressure cap; 703. clamp head; 704. longitudinal and lateral translation type deviation correction; 705. rubber gate assembly; 8. filling particles. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0023] Example 1
[0024] like Figure 1-2As shown, the utility model provides an oil well polished rod automatic sealing device, including a polished rod sealer body 1, a polished rod 2 is arranged on the inner surface of the polished rod sealer body 1, a detection device 3 is fixedly installed above the polished rod sealer body 1, a pressure detection module is arranged on the detection device 3, a docking assembly 4 is arranged on the right side of the polished rod sealer body 1, a filling assembly 5 is arranged on the right side of the docking assembly 4, the filling assembly 5 includes a mounting seat 501, an injection bin 502 is fixedly connected to the left side of the mounting seat 501, and filling particles 8 are arranged in the injection bin 502. An interface 503 is fixedly connected on the left side, an electric push rod 504 is fixedly connected to the right side of the inner surface of the injection chamber 502, the detection device 3 is electrically connected to the electric push rod 504, a push plate 505 is fixedly connected to the left end of the electric push rod 504, a control component 6 is arranged above the injection chamber 502, the control component 6 includes a monitoring unit 601, a transmission unit 602 is arranged on the right side of the monitoring unit 601, the transmission unit 602 is electrically connected to the electric push rod 504, the monitoring unit 601 is signal-connected to the detection device 3, and a main body component 7 is arranged below the injection chamber 502.
[0025] In this embodiment, the filling component 5 is connected to the polished rod sealer body 1 through the docking component 4. When the polished rod sealer body 1 leaks, it will be detected by the detection device 3. At this time, the filling component 5 will fill the inner surface of the polished rod sealer body 1 to prevent leakage.
[0026] Example 2
[0027] like Figure 1-2 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the docking component 4 includes an injection port 401, the injection port 401 is fixedly connected to the right side of the polished rod sealer body 1, the injection port 401 is connected to the inner surface of the polished rod sealer body 1, a sealing docking seat 402 is fixedly connected to the right side of the injection port 401, a threaded sealing cover 403 is threadedly connected to the right side of the sealing docking seat 402, and the threaded sealing cover 403 is rotatably connected to the outer surface of the interface 503, the body component 7 includes the body component 7 includes a universal ball head type correction 701, the universal ball head type correction 701 is arranged on the outer surface of the polished rod sealer body 1, a sealing pressure cap 702 is fixedly connected above the polished rod sealer body 1, a clamp head 703 is fixedly connected below the polished rod sealer body 1, a longitudinal and transverse translation type correction 704 is arranged on the outer surface of the polished rod sealer body 1, and a rubber gate assembly 705 is fixedly connected to the outer surface of the polished rod sealer body 1.
[0028] In this embodiment, the body component 7 is conveniently installed on the body of the polished rod 2 to seal the body of the polished rod 2, and the filling component 5 is installed at the same time to achieve the effect of strengthening the sealing.
[0029] The working principle of this oil well polished rod automatic sealing device is described in detail below.
[0030] like Figure 1-2 As shown, when in use, the polished rod sealer body 1 is first installed on the polished rod 2, and the polished rod sealer body 1 will seal the polished rod 2. At this time, the threaded sealing cover 403 on the interface 503 is rotated on the right side of the polished rod sealer body 1 to connect the interface 503 with the injection port 401 to install the injection bin 502. When the polished rod sealer body 1 leaks, the pressure detection module in the detection device 3 will detect it, and send out an alarm signal after detecting that the pressure of the polished rod 1 drops to a set value. At this time, the monitoring unit 601 will detect the alarm signal of the detection device 3 and start the transmission unit 602. The transmission unit 602 will start the electric push rod 504, and the electric push rod 504 pushes the push plate 505 to push the filling particles 8 in the injection bin 502 through the interface 503 and the injection port 401 into the polished rod sealer body 1 to achieve a sealing effect. When the detection device 3 detects that the pressure returns to the set value, the monitoring unit 601 will detect that the detection device 3 returns to normal, and start the transmission unit 602 to disconnect the running electric push rod 504. Keep the pressure within the set value range at all times.
Claims
1. An oil well polished rod automatic sealing device, comprising a polished rod sealer body (1), characterized in that: A polished rod (2) is arranged on the inner surface of the polished rod sealer body (1); a detection device (3) is fixedly installed above the polished rod sealer body (1); a docking assembly (4) is arranged on the right side of the polished rod sealer body (1); a filling assembly (5) is arranged on the right side of the docking assembly (4); the filling assembly (5) comprises a mounting seat (501); an injection bin (502) is fixedly connected to the left side of the mounting seat (501); an interface (503) is fixedly connected to the left side of the injection bin (502); an electric push rod (504) is fixedly connected to the right side of the inner surface of the injection bin (502); a push plate (505) is fixedly connected to the left end of the electric push rod (504); a control assembly (6) is arranged above the injection bin (502); and a body assembly (7) is arranged on the outer surface of the polished rod sealer body (1).
2. The oil well polished rod automatic sealing device according to claim 1, characterized in that: The docking assembly (4) comprises an injection port (401), the injection port (401) is fixedly connected to the right side of the polished rod sealer body (1), a sealing docking seat (402) is fixedly connected to the right side of the injection port (401), a threaded sealing cover (403) is threadedly connected to the right side of the sealing docking seat (402), and the threaded sealing cover (403) is rotatably connected to the outer surface of the interface (503).
3. The oil well polished rod automatic sealing device according to claim 1, characterized in that: The control component (6) comprises a monitoring unit (601), a transmission unit (602) is arranged on the right side of the monitoring unit (601), the transmission unit (602) is electrically connected to the electric push rod (504), and the monitoring unit (601) is signal-connected to the detection device (3).
4. The oil well polished rod automatic sealing device according to claim 1, characterized in that: The body component (7) comprises a universal ball head type deflection corrector (701), the universal ball head type deflection corrector (701) being arranged on the outer surface of the polished rod sealer body (1), a sealing pressure cap (702) being fixedly connected to the upper part of the polished rod sealer body (1), a clamp head (703) being fixedly connected to the lower part of the polished rod sealer body (1), a longitudinal and transverse translation type deflection corrector (704) being arranged on the outer surface of the polished rod sealer body (1), and a rubber gate assembly (705) being fixedly connected to the outer surface of the polished rod sealer body (1).
5. The oil well polished rod automatic sealing device according to claim 3, characterized in that: The monitoring unit (601) is electrically connected to the transmission unit (602).
6. The oil well polished rod automatic sealing device according to claim 3, characterized in that: The inner surface of the injection bin (502) is provided with filling particles (8).