Tubing thread lubricator

Abstract

This utility model relates to an oil pipe thread lubrication device. The technical solution is as follows: the lubrication main frame is located on a slide rail on the upper surface of the lubrication main body base, and the right end of the lubrication main frame is connected to the output shaft of the drive pump; the left end of the lubrication main frame is provided with a male thread lubrication head, the upper part of which is connected to the lower end of the lubrication head plunger via a lubrication head connecting rod, and the lubrication head plunger is installed in the lubrication head hydraulic cylinder; a lubricating oil tank is installed on the outside of the lubrication main frame, and the lower side of the lubricating oil tank is connected to the side wall of the male thread lubrication head via a lubricating oil pipe. The beneficial effects are: by controlling the oil pipe contact head of the male thread lubrication head to contact the male thread end of the oil pipe; then, by starting the lubricating oil pump, the lubricating oil in the inner cavity of the lubricating oil tank is pushed along the evenly distributed oil nozzles to the upper side of the male thread end of the oil pipe; rotating the oil pipe further ensures that the male thread end of the oil pipe is evenly coated with lubricating oil, which not only reduces labor intensity but also significantly improves lubrication efficiency.

Description

Technical Field

[0001] This utility model relates to the field of oil pipe repair technology, and in particular to an oil pipe thread oiling device. Background Technology

[0002] In the petroleum industry, tubing is a crucial oil extraction tool. During tubing production, protective caps are installed at both ends to prevent damage to the male or female threads during transportation. However, in oilfield well workover operations, workover rigs are used to retrieve tubing one piece at a time from the well to the surface. During this process, the ends of the tubing lack protective caps, leaving the male threads exposed and vulnerable to damage. Therefore, after multiple cycles of retrieving and reusing tubing, it is generally necessary to sort out intact tubing or repair damaged tubing. When repaired tubing is to be returned to the well site, the male threads need to be lubricated. However, manual lubrication is labor-intensive and inefficient.

[0003] Therefore, it is necessary to design an oil pipe thread lubrication device to meet the operation of lubricating the male threads of the oil pipe. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned deficiencies in the existing technology by providing an oil pipe thread lubrication device to meet the requirements of lubricating the male threads of oil pipes, thereby reducing labor intensity and improving lubrication efficiency.

[0005] The present invention discloses an oil pipe thread coating device, the technical solution of which includes an oil pipe support base (1), an oil pipe support frame (2), an oil pipe support head (3), a coating body frame (5), a coating head hydraulic cylinder (6), a coating head connecting rod (7), a male thread coating head (8), a coating head plunger (9), a drive pump (11), a coating body base (12), a lubricating oil pipe (16), and a lubricating oil tank (18). The upper part of the oil pipe support base (1) is provided with multiple oil pipe support frames (2), and the top of each oil pipe support frame (2) supports the oil pipe (4) through the oil pipe support head (3). The male thread end of the oil pipe (4) extends toward the coating. Main frame (5); The oiling main frame (5) is located on the slide rail (21) on the upper surface of the oiling main base (12), and the right end of the oiling main frame (5) is connected to the output shaft of the drive pump (11); The left end of the oiling main frame (5) is provided with a male thread oiling head (8), the upper part of the male thread oiling head (8) is connected to the lower end of the oiling head plunger (9) through the oiling head connecting rod (7), and the oiling head plunger (9) is installed in the oiling head hydraulic cylinder (6); A lubricating oil tank (18) is installed on the outside of the oiling main frame (5), and the lower side of the lubricating oil tank (18) is connected to the side wall of the male thread oiling head (8) through the lubricating oil pipe (16).

[0006] Preferably, a hydraulic oil tank (13) is installed inside the oiling body base (12) and the hydraulic oil tank (13) is connected to both sides of the oiling head hydraulic cylinder (6) through a first hydraulic oil pipe (14) and a second hydraulic oil pipe (15).

[0007] Preferably, the first hydraulic oil pipe (14) and the second hydraulic oil pipe (15) are installed inside the protective sleeve (10). The lower end of the protective sleeve (10) is fixed to the lower fixed end (17) of the protective sleeve, and the upper end of the protective sleeve (10) is fixed to the upper fixed end (20) of the protective sleeve. The upper fixed end (20) of the protective sleeve is located on the oiling body frame (5).

[0008] Preferably, a lubricating oil pump (19) is installed on the top of the aforementioned lubricating oil tank (18).

[0009] Preferably, a buffer rubber pad (22) for receiving the male end of the oil pipe (4) is installed on the left side wall of the oiling main frame (5). The outer diameter of the buffer rubber pad (22) is 3-4 times the outer diameter of the oil pipe (4).

[0010] Preferably, the above-mentioned male threaded oiling head (8) includes an oiling head body (8.1), an oil storage cavity (8.2), an oil inlet (8.3), an oil outlet (8.4), an oil pipe contact head (8.5), and an upper connector (8.6). The lower part of the oiling head body (8.1) is provided with an arc-shaped oil pipe contact head (8.5), and the surface of the oil pipe contact head (8.5) is provided with oil outlets (8.4). An oil storage cavity (8.2) is provided in the inner cavity of the oiling head body (8.1), an oil inlet (8.3) is provided on one side of the oiling head body (8.1), and an upper connector (8.6) is provided on the top of the oiling head body (8.1).

[0011] The beneficial effects of this utility model are as follows: By controlling the start of the drive pump, the oiling body frame is moved along the slide rail to the male end of the oil pipe and stopped. Then, the hydraulic oil in the hydraulic oil tank is controlled to be sent to the upper oil inlet of the hydraulic cylinder of the oiling head through the second hydraulic oil pipe. Under the push of the high-pressure hydraulic oil, the oiling head plunger moves downward and drives the oiling head connecting rod and the male thread oiling head to move downward, so that the oil pipe contact head of the male thread oiling head contacts the male end of the oil pipe. Then, the lubricating oil pump is started, pushing the lubricating oil in the inner cavity of the lubricating oil tank to be sent along the lubricating oil pipe into the oil storage cavity in the male thread oiling head. Under the action of pressure, it is sprayed onto the upper side of the male end of the oil pipe along the evenly distributed oil nozzles. Then, the existing rotating head drives the oil pipe to rotate a certain angle, and continues to push the lubricating oil along the evenly distributed oil nozzles to spray onto the male end of the oil pipe, so that the male end of the oil pipe is evenly coated with lubricating oil. This not only reduces the labor intensity, but also greatly improves the oiling efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model during oiling;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model after oiling;

[0014] Figure 3 This is a side view of the oil pipe support part of this utility model;

[0015] Figure 4 This is a schematic diagram of the oiling head;

[0016] Figure 5 This is a schematic diagram of the structure during oiling according to the second embodiment of this utility model;

[0017] Figure 6 This is a schematic diagram of the structure after oiling in the second embodiment of this utility model;

[0018] In the above diagram: 1. Oil pipe support base; 2. Oil pipe support frame; 3. Oil pipe support head; 4. Oiling main frame; 5. Oiling head hydraulic cylinder; 6. Oiling head connecting rod; 7. Oiling head; 8. Oiling head plunger; 9. Protective sleeve; 10. Drive pump; 11. Oiling main base; 12. Hydraulic oil tank; 13. First hydraulic oil pipe; 14. Second hydraulic oil pipe; 15. Lubricating oil pipe; 16. Lower fixed end of protective sleeve; 17. Lubricating oil tank; 18. Lubricating oil pump; 19. Upper fixed end of protective sleeve; 20. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0020] Example 1, referring to Figures 1-4This utility model discloses an oil pipe thread coating device, comprising an oil pipe support base 1, an oil pipe support frame 2, an oil pipe support head 3, a coating body frame 5, a coating head hydraulic cylinder 6, a coating head connecting rod 7, a male thread coating head 8, a coating head plunger 9, a drive pump 11, a coating body base 12, a lubricating oil pipe 16, and a lubricating oil tank 18. The upper part of the oil pipe support base 1 is provided with multiple oil pipe support frames 2. The top of each oil pipe support frame 2 supports an oil pipe 4 via an oil pipe support head 3. The male thread end of the oil pipe 4 extends towards the coating body frame. 5; The oiling main frame 5 is located on the slide rail 21 on the upper surface of the oiling main base 12, and the right end of the oiling main frame 5 is connected to the output shaft of the drive pump 11; The left end of the oiling main frame 5 is provided with a male thread oiling head 8, the upper part of the male thread oiling head 8 is connected to the lower end of the oiling head plunger 9 through the oiling head connecting rod 7, and the oiling head plunger 9 is installed on the oiling head hydraulic cylinder 6; A lubricating oil tank 18 is installed on the outside of the oiling main frame 5, and the lower side of the lubricating oil tank 18 is connected to the side wall of the male thread oiling head 8 through the lubricating oil pipe 16.

[0021] The oiling body base 12 is equipped with a hydraulic oil tank 13, which is connected to both sides of the oiling head hydraulic cylinder 6 through a first hydraulic oil pipe 14 and a second hydraulic oil pipe 15.

[0022] The first hydraulic oil pipe 14 and the second hydraulic oil pipe 15 mentioned above are installed inside the protective sleeve 10. The lower end of the protective sleeve 10 is fixed to the lower fixed end 17 of the protective sleeve, and the upper end of the protective sleeve 10 is fixed to the upper fixed end 20 of the protective sleeve. The upper fixed end 20 of the protective sleeve is located on the oiling body frame 5.

[0023] The top of the aforementioned lubricating oil tank 18 is equipped with a lubricating oil pump 19 for injecting lubricating oil into the male threaded oiling head 8.

[0024] Reference Figure 4 The male threaded oiling head 8 mentioned in this utility model includes an oiling head body 8.1, an oil storage cavity 8.2, an oil inlet 8.3, an oil outlet 8.4, an oil pipe contact head 8.5, and an upper connector 8.6. The lower part of the oiling head body 8.1 is provided with an arc-shaped oil pipe contact head 8.5, and the surface of the oil pipe contact head 8.5 is distributed with oil outlets 8.4. An oil storage cavity 8.2 is provided in the inner cavity of the oiling head body 8.1, an oil inlet 8.3 is provided on one side of the oiling head body 8.1, and an upper connector 8.6 is provided on the top of the oiling head body 8.1.

[0025] When using this utility model,

[0026] First, the oil pipe 4 that needs to be oiled is sent to the oil pipe support head 3 through the existing device and then to the buffer rubber pad 22 on the left side wall of the oiling main frame 5.

[0027] Second, control the start of the drive pump 11 to move the oiling body frame 5 along the slide rail to the male end of the oil pipe 4 and stop it. Then, control the hydraulic oil in the hydraulic oil tank 13 to be sent to the upper oil inlet of the hydraulic cylinder 6 of the oiling head through the second hydraulic oil pipe 15. Under the push of the high pressure hydraulic oil, the oiling head plunger 9 moves downward and drives the oiling head connecting rod 7 and the male thread oiling head 8 to move downward, so that the oil pipe contact head 8.5 of the male thread oiling head 8 contacts the male end of the oil pipe. Then, start the lubricating oil pump 19 to push the lubricating oil in the inner cavity of the lubricating oil tank 18 along the lubricating oil pipe 16 into the oil storage chamber 8.2 in the male thread oiling head 8. Under pressure, it is sprayed onto the upper side of the male end of the oil pipe along the evenly distributed oil outlet 8.4. Then, drive the oil pipe to rotate a certain angle through the existing rotating head to continue to push the lubricating oil along the evenly distributed oil outlet 8.4 onto the male end of the oil pipe, so that the male end of the oil pipe is evenly coated with lubricating oil.

[0028] Third, after the oiling is completed, the hydraulic oil in the hydraulic oil tank 13 is sent to the lower oil inlet of the hydraulic cylinder 6 of the oiling head through the first hydraulic oil pipe 14. Under the push of the high-pressure hydraulic oil, the oiling head plunger 9 moves upward, and drives the oiling head connecting rod 7 and the male thread oiling head 8 to move upward, so that the oil pipe contact head 8.5 of the male thread oiling head 8 is disengaged from the male thread end of the oil pipe and moves upward. Then, the drive pump 11 is controlled to work, and the oiling main frame 5 is moved to the right along the slide rail, so that the oiling main frame 5 is away from the oil pipe. Then, the oil pipe is sent to the oil pipe rack to carry out the oiling work of the next oil pipe. This not only reduces the labor intensity, but also greatly improves the oiling efficiency.

[0029] Example 2: The oil pipe thread coating device mentioned in this utility model includes an oil pipe support base 1, an oil pipe support frame 2, an oil pipe support head 3, a coating main body frame 5, a coating head hydraulic cylinder 6, a coating head connecting rod 7, a male thread coating head 8, a coating head plunger 9, a drive pump 11, a coating main body base 12, a lubricating oil pipe 16, and a lubricating oil tank 18. The upper part of the oil pipe support base 1 is provided with multiple oil pipe support frames 2. The top of each oil pipe support frame 2 supports an oil pipe 4 through an oil pipe support head 3. The male thread end of the oil pipe 4 extends towards the coating main body frame. The oiling body frame 5 is located on the slide rail 21 on the upper surface of the oiling body base 12, and the right end of the oiling body frame 5 is connected to the output shaft of the drive pump 11; the left end of the oiling body frame 5 is provided with a male thread oiling head 8, the upper part of the male thread oiling head 8 is connected to the lower end of the oiling head plunger 9 through the oiling head connecting rod 7, and the oiling head plunger 9 is installed on the oiling head hydraulic cylinder 6; a lubricating oil tank 18 is installed on the outside of the oiling body frame 5, and the lower side of the lubricating oil tank 18 is connected to the side wall of the male thread oiling head 8 through the lubricating oil pipe 16.

[0030] The difference from Example 1 is:

[0031] Reference Figure 5 and Figure 6 In this embodiment, a buffer rubber pad 22 is installed on the left side wall of the oiling main frame 5 to receive the male thread end of the oil pipe 4, so as to prevent the male thread end of the oil pipe from hitting the left side wall of the oiling main frame 5 and play a buffering role. The outer diameter of the buffer rubber pad 22 is 3-4 times the outer diameter of the oil pipe 4, so it can be used for oil pipes with different outer diameters.

[0032] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent transformations made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A tubing thread lubricator comprising: The system includes an oil pipe support base (1), an oil pipe support frame (2), an oil pipe support head (3), an oiling body frame (5), an oiling head hydraulic cylinder (6), an oiling head connecting rod (7), a male thread oiling head (8), an oiling head plunger (9), a drive pump (11), an oiling body base (12), a lubricating oil pipe (16), and a lubricating oil tank (18). The upper part of the oil pipe support base (1) is provided with multiple oil pipe support frames (2). The top of each oil pipe support frame (2) supports the oil pipe (4) through an oil pipe support head (3), and the male thread end of the oil pipe (4) extends towards the oiling body frame (5). The frame (5) is located on the slide rail (21) on the upper surface of the oiling body base (12), and the right end of the oiling body frame (5) is connected to the output shaft of the drive pump (11); the left end of the oiling body frame (5) is provided with a male thread oiling head (8), the upper part of the male thread oiling head (8) is connected to the lower end of the oiling head plunger (9) through the oiling head connecting rod (7), and the oiling head plunger (9) is installed in the oiling head hydraulic cylinder (6); a lubricating oil tank (18) is installed on the outside of the oiling body frame (5), and the lower side of the lubricating oil tank (18) is connected to the side wall of the male thread oiling head (8) through the lubricating oil pipe (16).

2. The oil pipe thread oiling device according to claim 1, characterized in that: A hydraulic oil tank (13) is installed inside the oiling body base (12). The hydraulic oil tank (13) is connected to both sides of the oiling head hydraulic cylinder (6) through a first hydraulic oil pipe (14) and a second hydraulic oil pipe (15).

3. The oil pipe thread oiling device according to claim 2, characterized in that: The first hydraulic oil pipe (14) and the second hydraulic oil pipe (15) are installed inside the protective sleeve (10). The lower end of the protective sleeve (10) is fixed to the lower fixed end (17) of the protective sleeve, and the upper end of the protective sleeve (10) is fixed to the upper fixed end (20) of the protective sleeve. The upper fixed end (20) of the protective sleeve is located on the oiling body frame (5).

4. The oil pipe thread oiling device according to claim 3, characterized in that: A lubricating oil pump (19) is installed on the top of the lubricating oil tank (18).

5. The oil pipe thread oiling device according to claim 1, characterized in that: The left side wall of the oiling main frame (5) is equipped with a buffer rubber pad (22) for receiving the male end of the oil pipe (4), and the outer diameter of the buffer rubber pad (22) is 3-4 times the outer diameter of the oil pipe (4).

6. The oil pipe thread oiling device according to claim 1, characterized in that: The male threaded oiling head (8) includes an oiling head body (8.1), an oil storage chamber (8.2), an oil inlet (8.3), an oil outlet (8.4), an oil pipe contact head (8.5), and an upper connector (8.6). The lower part of the oiling head body (8.1) is provided with an arc-shaped oil pipe contact head (8.5), and the surface of the oil pipe contact head (8.5) is provided with oil outlets (8.4). An oil storage chamber (8.2) is provided in the inner cavity of the oiling head body (8.1), an oil inlet (8.3) is provided on one side of the oiling head body (8.1), and an upper connector (8.6) is provided on the top of the oiling head body (8.1).

Images