Underground petroleum pumping pipeline fixing device

Abstract

The utility model provides an underground petroleum pumping pipeline fixing device which comprises a first oil pumping pipe, and a second oil pumping pipe is arranged on the top of the first oil pumping pipe. The fixing mechanism is arranged on the outer sides of the first oil pumping pipe and the second oil pumping pipe, the fixing mechanism comprises a spring and a supporting plate, one end of the spring is fixedly connected with the outer sides of the first oil pumping pipe and the second oil pumping pipe, and one end of the spring is fixedly connected with the supporting plate; the connecting mechanism is arranged between the first oil pumping pipe and the second oil pumping pipe, the connecting mechanism comprises a threaded groove and a stud, and the threaded groove is formed in the top end of the first oil pumping pipe. According to the underground petroleum pumping pipeline fixing device, the problems that when part of existing underground petroleum pumping pipelines descend to an oil well for oil pumping, the pipelines cannot be effectively fixed, the pipelines swing in the oil pumping process, the oil pumping work efficiency is affected, and parts are prone to being damaged due to long-term swing are solved.

Description

Technical Field

[0001] The utility model relates to the field of petroleum, in particular to a downhole petroleum pumping pipeline fixing device. Background Art

[0002] Pipeline transportation is the most economical and reasonable way to transport crude oil. When transporting crude oil through pipelines, the connection between pipelines is usually made by using pipe couplings to form a continuous oil transportation pipeline to achieve continuous transportation of oil.

[0003] Patent application number CN201820826471.1 discloses an oil pipeline connection structure. When the inner diameters of the first pipeline, the second pipeline and the inner through pipe are consistent, the oil flow resistance is minimal and the flow rate per unit time is maximum. However, in actual operation, after the pipelines are connected, the sealing is poor, which easily leads to oil leakage.

[0004] Some existing underground oil pumping pipelines cannot be effectively fixed when they are lowered to the oil well for pumping oil, causing them to swing during pumping, affecting the efficiency of pumping work, and long-term swinging can easily cause damage to parts.

[0005] Therefore, it is necessary to provide a new downhole oil pumping pipeline fixing device to solve the above-mentioned technical problems. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a downhole oil pumping pipeline fixing device with improved fixing sealing performance.

[0007] The utility model provides a downhole oil pumping pipeline fixing device, comprising a first oil pumping pipe, a second oil pumping pipe is arranged on the top of the first oil pumping pipe; a fixing mechanism, the fixing mechanism is arranged on the outer sides of the first oil pumping pipe and the second oil pumping pipe, the fixing mechanism comprises a spring and a support plate, one end of the spring is fixedly connected to the outer sides of the first oil pumping pipe and the second oil pumping pipe, and one end of the spring is fixedly connected to the support plate; a connecting mechanism, the connecting mechanism is arranged between the first oil pumping pipe and the second oil pumping pipe, the connecting mechanism comprises a threaded groove and a stud, the threaded groove is opened at the top of the first oil pumping pipe, the inner wall of the threaded groove is threadedly connected with the stud, and the top of the stud is fixedly connected to the bottom of the second oil pumping pipe.

[0008] As a downhole oil pumping pipeline fixing device provided by the utility model, preferably, the bottom of the support plate is provided with an inclined plate for facilitating the extension and retraction of the pumping pipe during movement.

[0009] As a downhole oil pumping pipeline fixing device provided by the utility model, preferably, a sliding rod is arranged inside the spring, and one end of the sliding rod is fixedly connected to one side of the support plate.

[0010] As a downhole oil pumping pipeline fixing device provided by the utility model, preferably, the outer side of the sliding rod is slidably connected with a sleeve which facilitates its sliding and improves the expansion and contraction stability of the spring.

[0011] As a downhole oil pumping pipeline fixing device provided by the utility model, preferably, the casing is arranged inside the spring, and one end of the casing is fixedly connected to the outer sides of the first pumping pipe and the second pumping pipe.

[0012] As a downhole oil pumping pipeline fixing device provided by the utility model, preferably, the connecting mechanism also includes a sealing groove, and the sealing groove is opened on the top of the first pumping pipe.

[0013] As a downhole oil pumping pipeline fixing device provided by the utility model, preferably, a sealing block is clamped on the inner wall of the sealing groove, and the top of the sealing block is fixedly connected to the bottom of the second oil pumping pipe.

[0014] As a downhole oil pumping pipe fixing device provided by the utility model, preferably, the outer sides of the first pumping pipe and the second pumping pipe are both provided with anti-slip walls for facilitating rotation to connect them.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The downhole oil pumping pipeline fixing device can fix the outer side of the pipeline to the inner wall of the oil well after the pipeline is lowered into the oil well by arranging a fixing mechanism, so as to limit the pipeline and prevent it from swinging, thereby solving the problem that some existing downhole oil pumping pipelines cannot be effectively fixed when they are lowered into the oil well for oil pumping, causing the pipeline to swing during oil pumping, thus affecting the oil pumping work efficiency, and long-term swinging is likely to cause damage to parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural schematic diagram of a preferred embodiment of the downhole oil pumping pipeline fixing device provided by the utility model;

[0018] Figure 2 It is a structural schematic diagram of the fixing mechanism in the utility model;

[0019] Figure 3 It is a schematic diagram of the structure inside the spring in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the connecting mechanism in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the bottom of the second oil pumping pipe in the utility model.

[0022] Numbers in the figure: 1, first oil pumping pipe; 2, second oil pumping pipe; 3, fixing mechanism; 31, spring; 32, support plate; 33, inclined plate; 34, slide rod; 35, sleeve; 4, connecting mechanism; 41, threaded groove; 42, stud; 43, sealing groove; 44, sealing block; 45, anti-slip wall. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in Figure 1 A structural schematic diagram of a preferred embodiment of the downhole oil pumping pipeline fixing device provided by the utility model; Figure 2 It is a structural schematic diagram of the fixing mechanism in the utility model; Figure 3 It is a schematic diagram of the structure inside the spring in the utility model; Figure 4 It is a structural schematic diagram of the connecting mechanism in the utility model; Figure 5 The bottom structure of the second pumping pipe in the utility model is shown in FIG.

[0025] In the specific implementation process, Figure 2 and Figure 3 As shown, the fixing mechanism 3 is arranged on the outside of the first oil extraction pipe 1 and the second oil extraction pipe 2, and the fixing mechanism 3 includes a spring 31 and a support plate 32. One end of the spring 31 is fixedly connected to the outside of the first oil extraction pipe 1 and the second oil extraction pipe 2, and one end of the spring 31 is fixedly connected to the support plate 32.

[0026] The bottom of the support plate 32 is provided with an inclined plate 33 for facilitating the extension and retraction of the oil pumping pipe during movement.

[0027] A slide rod 34 is disposed inside the spring 31 , and one end of the slide rod 34 is fixedly connected to one side of the support plate 32 .

[0028] The outer side of the slide rod 34 is slidably connected with a sleeve 35 which facilitates the sliding of the slide rod 34 and improves the telescopic stability of the spring 31 .

[0029] The sleeve 35 is disposed inside the spring 31 , and one end of the sleeve 35 is fixedly connected to the outer sides of the first oil pumping pipe 1 and the second oil pumping pipe 2 .

[0030] It should be noted that: by setting the first oil pumping pipe 1 and the second oil pumping pipe 2 to be connected, an oil delivery passage is formed, by setting the spring 31, the support plate 32 can be conveniently extended and retracted according to the downhole environment, by setting the support plate 32, the first oil pumping pipe 1 and the second oil pumping pipe 2 can be limited and fixed, by setting the inclined plate 33, the support plate 32 can be smoothly moved downward to prevent blockage, and by setting the sliding rod 34 and the casing 35, the stability of the movement of the support plate 32 can be improved.

[0031] refer to Figure 4 and Figure 5 As shown, the connecting mechanism 4 is arranged between the first oil extraction pipe 1 and the second oil extraction pipe 2, and the connecting mechanism 4 includes a thread groove 41 and a stud 42. The thread groove 41 is opened at the top of the first oil extraction pipe 1, and the inner wall of the thread groove 41 is threadedly connected with the stud 42, and the top of the stud 42 is fixedly connected to the bottom of the second oil extraction pipe 2.

[0032] The connecting mechanism 4 further comprises a sealing groove 43 , which is opened at the top of the first oil pumping pipe 1 .

[0033] A sealing block 44 is clamped on the inner wall of the sealing groove 43 , and the top of the sealing block 44 is fixedly connected to the bottom of the second oil pumping pipe 2 .

[0034] The outer sides of the first oil extraction pipe 1 and the second oil extraction pipe 2 are both provided with anti-slip walls 45 for facilitating rotation and connection.

[0035] It should be noted that: by providing the threaded groove 41 and the stud 42, the first oil pumping pipe 1 and the second oil pumping pipe 2 can be easily connected and disassembled, by providing the sealing groove 43 and the sealing block 44, the sealing performance of the first oil pumping pipe 1 and the second oil pumping pipe 2 after being connected can be improved, and by providing the anti-slip wall 45, the first oil pumping pipe 1 and the second oil pumping pipe 2 can be easily rotated to connect them.

[0036] The working principle of the downhole oil pumping pipeline fixing device provided by the utility model is as follows:

[0037] When in use, the user connects multiple pipes together through the threaded groove 41 and the stud 42 to form an oil pipeline. After the connection is completed, the sealing block 44 is engaged with the sealing groove 43 to achieve a sealing effect to prevent oil leakage. The oil pipeline is placed in the oil well. During the lowering process, the support plate 32 is extended and moved by the spring 31 according to the downhole environment, so as to limit and fix the pipeline at multiple locations in the well to prevent swinging and improve the stability of oil transportation.

[0038] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A downhole oil pumping pipeline fixing device, characterized in that: include: A first oil pumping pipe (1), wherein a second oil pumping pipe (2) is arranged on the top of the first oil pumping pipe (1); A fixing mechanism (3), the fixing mechanism (3) being arranged on the outside of the first oil extraction pipe (1) and the second oil extraction pipe (2), the fixing mechanism (3) comprising a spring (31) and a support plate (32), one end of the spring (31) being fixedly connected to the outside of the first oil extraction pipe (1) and the second oil extraction pipe (2), and one end of the spring (31) being fixedly connected to the support plate (32); A connecting mechanism (4), the connecting mechanism (4) is arranged between the first oil extraction pipe (1) and the second oil extraction pipe (2), the connecting mechanism (4) comprises a thread groove (41) and a stud (42), the thread groove (41) is opened at the top of the first oil extraction pipe (1), the inner wall of the thread groove (41) is threadedly connected with the stud (42), and the top of the stud (42) is fixedly connected to the bottom of the second oil extraction pipe (2).

2. The downhole oil pumping pipeline fixing device according to claim 1 is characterized in that: The bottom of the support plate (32) is provided with an inclined plate (33) for facilitating the extension and retraction of the oil pumping pipe during movement.

3. The downhole oil pumping pipeline fixing device according to claim 1 is characterized in that: A sliding rod (34) is arranged inside the spring (31), and one end of the sliding rod (34) is fixedly connected to one side of the support plate (32).

4. The downhole oil pumping pipeline fixing device according to claim 3 is characterized in that: The outer side of the slide bar (34) is slidably connected to a sleeve (35) which facilitates its sliding and improves the telescopic stability of the spring (31).

5. The downhole oil pumping pipeline fixing device according to claim 4 is characterized in that: The sleeve (35) is arranged inside the spring (31), and one end of the sleeve (35) is fixedly connected to the outer sides of the first oil pumping pipe (1) and the second oil pumping pipe (2).

6. The downhole oil pumping pipeline fixing device according to claim 1 is characterized in that: The connecting mechanism (4) further comprises a sealing groove (43), wherein the sealing groove (43) is opened at the top of the first oil pumping pipe (1).

7. The downhole oil pumping pipeline fixing device according to claim 6 is characterized in that: A sealing block (44) is clamped on the inner wall of the sealing groove (43), and the top of the sealing block (44) is fixedly connected to the bottom of the second oil pumping pipe (2).

8. The downhole oil pumping pipeline fixing device according to claim 5 is characterized in that: The outer sides of the first oil extraction pipe (1) and the second oil extraction pipe (2) are both provided with anti-slip walls (45) for facilitating rotation and connection.

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