A sucker rod pre-treatment cleaning device for oil production

Abstract

The present application relates to the technical field of sucker rod cleaning equipment, and discloses a sucker rod pre-treatment cleaning equipment for oil production, comprising a sucker rod, wherein the outer surface of the sucker rod is movably sleeved with a cleaning component, and a linear motor is fixedly installed on one side of the outside of the cleaning component, and the inside of the hoisting component is connected to the inside of the cleaning component through a hose, and the linear motor is movably sleeved on a vertically arranged guide rail. At the same time, the present application provides a sucker rod pre-treatment cleaning equipment for oil production. With respect to the arrangement of the cleaning component and the hoisting component, the outer surface of the sucker rod can be cleaned by the cleaning component and the structure thereon, and the sucker rod is suspended for cleaning, so that the cleaning operation of the sucker rod surface can be completed at one time, with high cleaning efficiency and good quality. At the same time, the operation of sucker rod cleaning is relatively simple, the cost is low, and the economic applicability is high.

Description

Technical Field

[0001] The present application relates to the technical field of sucker rod cleaning equipment, and in particular to a sucker rod pre-treatment cleaning equipment used in petroleum production. Background Art

[0002] A sucker rod is a slender rod used to transmit power in a pumping well. Several groups of sucker rods are connected by hoops and extend to the piston in the underground oil layer. The rods pump oil by driving the piston to move back and forth. As pumping wells are generally more than a kilometer deep, surface treatment is an indispensable and important procedure to ensure the mechanical properties and corrosion resistance of the sucker rods, thereby ensuring the good performance of the sucker rods.

[0003] However, before this, it is necessary to clean the stains and rust on the surface of the sucker rod during transportation and placement. The length of a single sucker rod is between 7 and 9 meters. In order to prevent it from bending due to the influence of gravity when placed horizontally, supports are placed at the bottom of the sucker rod at intervals. As a result, the existing cleaning device is difficult to clean the sucker rod and cannot perform a one-time cleaning operation on the entire sucker rod, resulting in low cleaning efficiency and poor quality.

[0004] However, if ultrasonic cleaning equipment is used to clean the sucker rods, since the length of a single sucker rod is between 7 and 9 meters, and ultrasonic cleaning requires the parts to be completely immersed in the liquid medium, a larger-sized ultrasonic cleaning equipment is required, which is less economical and has a high cleaning cost for the sucker rod surface.

[0005] Therefore, there is an urgent need for a surface cleaning device for a sucker rod to solve the defects of the above-mentioned existing cleaning devices when cleaning the surface of the sucker rod. Summary of the Invention

[0006] The present application proposes a sucker rod pre-treatment cleaning device for oil production, which has the advantages of being able to complete the cleaning operation of the sucker rod surface in one go, with high cleaning efficiency and good quality, and is used to solve the problem that the existing cleaning device is difficult to clean the sucker rod and cannot implement a one-time cleaning operation for the entire sucker rod, and the cleaning efficiency is relatively low and the quality is poor. If ultrasonic cleaning equipment is used to clean the sucker rod, since the length of a single sucker rod is between 7 and 9 meters, and ultrasonic cleaning requires the parts to be completely immersed in a liquid medium, it is necessary to configure ultrasonic cleaning equipment of larger size, which has poor economic applicability and high cost for cleaning the sucker rod surface.

[0007] To achieve the above-mentioned objectives, the present application adopts the following technical solutions: a sucker rod pre-treatment cleaning device for oil extraction, comprising a sucker rod, a cleaning component and a lifting component, the top end of the sucker rod is threadedly fixedly connected to the lifting component, the outer surface of the sucker rod is movably sleeved with a cleaning component, and a linear motor is fixedly installed on one side of the outside of the cleaning component, and the inside of the lifting component is connected to the inside of the cleaning component through a hose, and the linear motor is movably sleeved on a vertically arranged guide rail. At the same time, the bottom end of the sucker rod is connected to an external cleaning agent delivery system, the cleaning component comprises an outer shell with an opening on one side, and a T-shaped ring groove is opened on the inner wall of the outer shell, and a rotating sleeve with inclined fan strips on the outer surface is movably sleeved on the T-shaped ring groove, and one side of the inside of the T-shaped ring groove is connected to the bottom end of the hose, and a return pipe connected to the other side of the inside of the T-shaped ring groove is fixedly installed on one side of the outside of the outer shell, and the other end of the return pipe is connected to the top of the inner cavity of the outer shell.

[0008] Furthermore, the gap between the openings on one side of the outer shell is larger than the outer diameter of the sucker rod, and the rotating sleeve is set to a semi-annular structure, which can accommodate the sucker rod in and out while allowing the rotating sleeve to rotate along the track of the T-shaped ring groove.

[0009] Furthermore, the lifting component includes a jacket threadedly connected to the top of the sucker rod, a plug rod is movably sleeved inside the jacket, and a spring is provided on the outer surface of the plug rod. The plug rod is transmission-connected to the inner wall of the jacket through the spring, and a first connecting groove is provided inside the plug rod, and a second connecting groove connected to the top of the hose is provided inside the jacket.

[0010] Furthermore, a first conductive ring with a semi-annular structure is provided on the top of the outer surface of the rotating sleeve, and a first conductive block is provided on one side of the inner wall of the outer shell and at the same height as the first conductive ring.

[0011] Furthermore, a second conductive ring is provided in the middle of the outer surface of the jacket, and a second conductive block is provided in the middle of the inner wall of the jacket and above the second conductive ring, and the gap between the second conductive ring and the second conductive block is equal to the gap between the first connecting groove and the second connecting groove.

[0012] Furthermore, a series conductive loop is formed between the second conductive ring, the second conductive block, the first conductive ring, the first conductive block and the linear motor, thereby controlling the movement state of the linear motor.

[0013] Furthermore, the linear motor drives the outer shell and the structure thereon to move downward in a single movement, which is smaller than the length of the bristles on the rotating sleeve.

[0014] Furthermore, a conductive connection loop is provided inside the linear motor to drive it to move upward, and a single trigger control connection system is formed between the linear motor, the second conductive ring and the second conductive block.

[0015] Furthermore, a three-way valve is provided inside the reflux pipe, and the other end of the three-way valve is connected to the external drainage pipe.

[0016] The present invention has the following technical effects:

[0017] The present application provides a sucker rod pre-treatment cleaning equipment for oil production. Regarding the arrangement of the cleaning components and the hoisting components, the outer surface of the sucker rod can be cleaned by the cleaning components and the structure thereon, and the displacement of the cleaning components in a single downward movement can be automatically controlled by the hoisting components and the structure thereon, so that the outer surface of the sucker rod can be fully cleaned without omission problems. The operability and controllability are high, and the sucker rod is suspended for cleaning, so the cleaning operation of the sucker rod surface can be completed at one time, and the cleaning efficiency is high and the quality is good. At the same time, the operation of cleaning the sucker rod is relatively simple, the cost is low, and the economic applicability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments disclosed herein and, together with the description, serve to explain the principles disclosed herein.

[0019] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a front view of the structure of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the cleaning component of the present invention;

[0023] Figure 4 It is a front view of the cleaning component of the present invention;

[0024] Figure 5 The structure of the present invention Figure 4 Cross-sectional view at AA in the middle;

[0025] Figure 6 It is a structural schematic diagram of the lifting component of the present invention;

[0026] Figure 7 It is a front view of the lifting component of the present invention.

[0027] In the figure: 1. Sucker rod; 2. Cleaning component; 3. Linear motor; 4. Hoisting component; 5. Guide rail; 6. Hose; 7. Outer shell; 8. T-ring groove; 9. Rotating sleeve; 10. Return pipe; 11. First conductive block; 12. First conductive ring; 13. Jacket; 14. Plug rod; 15. Spring; 16. First connecting groove; 17. Second connecting groove; 18. Second conductive ring; 19. Second conductive block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] like Figure 1 As shown, Figure 1 、 Figure 2 As shown, a sucker rod pre-treatment cleaning equipment for oil production includes a sucker rod 1, a cleaning component 2 and a hanging component 4. The top end of the sucker rod 1 is fixedly connected to the hanging component 4 with a thread, and the top end of the hanging component 4 is fixedly connected to the suspension system, so that the sucker rod 1 can be vertically suspended by the suspension system. The outer surface of the sucker rod 1 is movably sleeved with the cleaning component 2, and a linear motor 3 is fixedly installed on one side of the outside of the cleaning component 2, and the interior of the hanging component 4 is connected to the interior of the cleaning component 2 through a hose 6, and the linear motor 3 is movably sleeved on a vertically arranged guide rail 5, and the upper and lower ends of the guide rail 5 are respectively fixedly mounted on an external truss. At the same time, the bottom end of the sucker rod 1 is connected to the external cleaning agent delivery system, and the cleaning agent is delivered to the hanging component 4 through the sucker rod 1 and delivered to the cleaning component 2 through the hose 6, as shown Figure 3 、 Figure 4 As shown, the cleaning component 2 includes an outer shell 7 with an opening on one side, and a T-shaped ring groove 8 is provided on the inner wall of the outer shell 7, and a rotating sleeve 9 with inclined fan strips on the outer surface is movably connected to the T-shaped ring groove 8, so that the high-pressure cleaning agent flowing in the hose 6 can be used to drive the rotating sleeve 9 to rotate. At the same time, bristles are provided on the inner wall of the rotating sleeve 9 for cleaning the outer surface of the sucker rod 1, and one side of the inside of the T-shaped ring groove 8 is connected to the bottom end of the hose 6, and one side of the outside of the outer shell 7 is fixedly installed with a return pipe 10 connected to the other side of the inside of the T-shaped ring groove 8, and the other end of the return pipe 10 is connected to the top of the inner cavity of the outer shell 7, so that the cleaning agent can be transported to the bristles on the inner wall of the rotating sleeve 9, and the outer surface of the sucker rod 1 is cleaned during the rotation of the rotating sleeve 9.

[0030] like Figure 5As shown, in the present technical solution, the gap between the openings on one side of the outer shell 7 is larger than the outer diameter of the sucker rod 1, and the rotating sleeve 9 is set to a semi-annular structure. While accommodating the sucker rod 1 in and out, the rotating sleeve 9 can rotate along the trajectory of the T-shaped ring groove 8, thereby allowing the cleaning equipment to be easily replaced without affecting the cleaning operation of the outer surface of the sucker rod 1. The operation is simple and easy to use.

[0031] like Figure 6 As shown, in this technical solution, the hanging component 4 includes a jacket 13 threadedly connected to the top of the sucker rod 1, a plug rod 14 is movably sleeved inside the jacket 13, and a spring 15 with a constant pressure structure is provided on the outer surface of the plug rod 14. The plug rod 14 is transmission-connected to the inner wall of the jacket 13 via the spring 15, and a first connecting groove 16 is provided inside the plug rod 14, and a second connecting groove 17 connected to the top of the hose 6 is provided inside the jacket 13:

[0032] When the inner cavity of the sucker rod 1 does not flow with high-pressure cleaning agent, the first communicating groove 16 and the second communicating groove 17 are in a mutually staggered state under the elastic force of the spring 15, and the first communicating groove 16 is located below the second communicating groove 17;

[0033] When high-pressure cleaning agent flows through the inner cavity of the sucker rod 1, under the squeezing action of the cleaning agent, the plug rod 14 is driven to move upward to overcome the elastic force of the spring 15, and the first connecting groove 16 and the second connecting groove 17 are overlapped with each other, and then the high-pressure cleaning agent flowing through the sucker rod 1 is transported to the inner cavity of the T-shaped ring groove 8 through the hose 6.

[0034] like Figure 3 As shown, in the present technical solution, a first conductive ring 12 with a semi-annular structure is provided on the top of the outer surface of the rotating sleeve 9, and a first conductive block 11 is provided on one side of the inner wall of the outer shell 7 and at the same height as the first conductive ring 12. When the first conductive ring 12 rotates 180° along with the rotating sleeve 9, the first conductive ring 12 comes into contact with the first conductive ring 12 and is electrically connected. When the first conductive ring 12 rotates 180° again, the first conductive ring 12 and the first conductive block 11 are staggered with each other and the conductive connection between them is cut off.

[0035] like Figure 7As shown, in the present technical solution, a second conductive ring 18 is provided in the middle of the outer surface of the jacket 13, and a second conductive block 19 is provided in the middle of the inner wall of the jacket 13 and above the second conductive ring 18, and the gap between the second conductive ring 18 and the second conductive block 19 is equal to the gap between the first connecting groove 16 and the second connecting groove 17, and in the initial state, the second conductive ring 18 and the second conductive block 19 are in a staggered state, and when the jacket 13 is squeezed by the high-pressure cleaning agent in the sucker rod 1 and moves upward, while the first connecting groove 16 and the second connecting groove 17 overlap and connect with each other, the second conductive ring 18 and the second conductive block 19 are in contact and conduction.

[0036] In this technical solution, a series conductive circuit is formed between the second conductive ring 18, the second conductive block 19, the first conductive ring 12, and the first conductive block 11, and the linear motor 3, thereby controlling the movement state of the linear motor 3. When a high-pressure cleaning agent flows through the sucker rod 1, the high-pressure cleaning agent drives the jacket 13 to move upward, causing the second conductive ring 18 to contact and connect with the second conductive block 19, and the first connecting groove 16 and the second connecting groove 17 to overlap and connect. Under the action of the high-pressure cleaning agent, the rotating sleeve 9 is driven to rotate. At the same time, when the rotating sleeve 9 rotates 180°, the first conductive block 11 contacts and connects with the first conductive ring 12, triggering the linear motor 3 to move downward. When the rotating sleeve 9 continues to rotate 180°, the first conductive block 11 and the first conductive ring 12 are offset from each other and cut off the conductive contact with the linear motor 3. Until the rotating sleeve 9 rotates 180° again, the first conductive block 11 and the first conductive ring 12 contact and connect again, thereby rotating to clean the outer surface of the sucker rod 1.

[0037] In this technical solution, the linear motor 3 drives the outer shell 7 and the structure thereon to move downward in a single distance which is less than the length of the bristles on the rotating sleeve 9, thereby ensuring the reliability of cleaning the outer surface of the sucker rod 1 without omission problems, making the cleaning efficiency of the outer surface of the sucker rod 1 higher and the quality better.

[0038] In this technical solution, a conductive connection loop is provided inside the linear motor 3 to drive it to move upward, and a single trigger control connection system is formed between the linear motor 3 and the second conductive ring 18 and the second conductive block 19. When the second conductive ring 18 and the second conductive block 19 are in contact and triggered, the conductive connection loop is always in a disconnected state. When the second conductive ring 18 and the second conductive block 19 are not in contact, the conductive connection loop is triggered and drives the linear motor 3 to move upward, so that it moves to the initial height position.

[0039] like Figure 3As shown, in the present technical solution, a three-way valve is provided inside the return pipe 10, and the other end of the three-way valve is connected to the external drainage pipe, so that the flow rate of the cleaning agent into the rotating sleeve 9 can be controlled by the three-way valve, and the excess flow of the cleaning agent can be discharged through the drainage pipe.

Claims

1. A sucker rod pre-treatment cleaning device for oil production, comprising a sucker rod (1), a cleaning component (2) and a hanging component (4), wherein the top end of the sucker rod (1) is fixedly connected to the hanging component (4) by a thread, the outer surface of the sucker rod (1) is movably sleeved with the cleaning component (2), and a linear motor (3) is fixedly installed on one side of the outside of the cleaning component (2), and the inside of the hanging component (4) is connected to the inside of the cleaning component (2) through a hose (6), and the linear motor (3) is movably sleeved on a vertically arranged guide rail (5), and at the same time, the bottom end of the sucker rod (1) is connected to an external cleaning agent delivery system, characterized in that: The cleaning component (2) includes an outer shell (7) with an opening on one side, and a T-shaped ring groove (8) is opened on the inner wall of the outer shell (7), and a rotating sleeve (9) with an outer surface provided with inclined fan strips is movably sleeved on the T-shaped ring groove (8), and one side of the interior of the T-shaped ring groove (8) is connected to the bottom end of the hose (6), and a return pipe (10) connected to the other side of the interior of the T-shaped ring groove (8) is fixedly installed on one side of the exterior of the outer shell (7), and the other end of the return pipe (10) is connected to the top of the inner cavity of the outer shell (7).

2. The sucker rod pre-treatment cleaning equipment for oil production according to claim 1, characterized in that: The gap between the openings on one side of the outer shell (7) is larger than the outer diameter of the sucker rod (1), and the rotating sleeve (9) is configured as a semi-annular structure, which allows the rotating sleeve (9) to rotate along the trajectory of the T-shaped ring groove (8) while accommodating the sucker rod (1) to move in and out.

3. The sucker rod pre-treatment cleaning equipment for oil production according to claim 2, characterized in that: The hoisting component (4) includes a jacket (13) threadedly connected to the top end of the sucker rod (1), a plug rod (14) is movably sleeved inside the jacket (13), and a spring (15) is provided on the outer surface of the plug rod (14), the plug rod (14) forms a transmission connection with the inner wall of the jacket (13) through the spring (15), and a first connecting groove (16) is provided inside the plug rod (14), and a second connecting groove (17) connected to the top end of the hose (6) is provided inside the jacket (13).

4. The sucker rod pre-treatment cleaning equipment for oil production according to claim 3, characterized in that: A first conductive ring (12) with a semi-annular structure is provided on the top of the outer surface of the rotating sleeve (9), and a first conductive block (11) is provided on one side of the inner wall of the outer shell (7) and at the same height as the first conductive ring (12).

5. The sucker rod pre-treatment and cleaning equipment for oil production according to claim 4, characterized in that: A second conductive ring (18) is provided in the middle of the outer surface of the jacket (13), and a second conductive block (19) is provided in the middle of the inner wall of the jacket (13) and above the second conductive ring (18), and the gap between the second conductive ring (18) and the second conductive block (19) is equal to the gap between the first connecting groove (16) and the second connecting groove (17).

6. The sucker rod pre-treatment and cleaning equipment for oil production according to claim 5, characterized in that: A series conductive loop is formed between the second conductive ring (18), the second conductive block (19), the first conductive ring (12), the first conductive block (11) and the linear motor (3), thereby controlling the movement state of the linear motor (3).

7. The sucker rod pre-treatment and cleaning equipment for oil production according to claim 6, characterized in that: The linear motor (3) drives the outer shell (7) and the structure thereon to move downward in a single movement, which is less than the length of the bristles on the rotating sleeve (9).

8. The sucker rod pre-treatment and cleaning equipment for oil production according to claim 7, characterized in that: The linear motor (3) is provided with a conductive connection loop inside thereof for driving it to move upward, and forms a single trigger control connection system with the second conductive ring (18) and the second conductive block (19).

9. The sucker rod pre-treatment and cleaning equipment for oil production according to claim 8, characterized in that: A three-way valve is provided inside the reflux pipe (10), and the other end of the three-way valve is connected to an external drainage pipe.

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