Oilfield pipeline unblocking device

Abstract

The utility model is suitable for the technical field of oil field pipeline unblocking, and provides an oil field pipeline unblocking device which comprises a hollow electric heating rod body and a box body arranged on one side of the hollow electric heating rod body. The annular frame is rotationally mounted on the box body; the scraping plate is arranged on one side of the annular frame; the gear ring is fixedly mounted on the annular frame; the group of supporting plates are fixedly mounted in the box body, gears are rotationally mounted on the group of supporting plates, and the gears are meshed with the gear ring; the motor is fixedly mounted on any supporting plate, and an output shaft of the motor is fixedly connected with the gear; the adjusting mechanism is arranged on the annular frame and is used for adjusting the height of the scraper blade; and the lubricating mechanism is arranged in the box body and is used for lubricating the gear and the gear ring. The oil field pipeline unblocking device provided by the scheme can be matched with the hollow electric heating rod for use, so that substances in the pipeline can be dissolved and scraped, and the pipeline cleaning effect can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of oilfield pipeline plug removal, and particularly relates to an oilfield pipeline plug removal device. Background Technique

[0002] Due to the limitation of the use environment of oilfield pipelines, wax plugs or freeze plugs are likely to occur inside the oilfield pipelines at low temperatures, resulting in a decrease in the oil throughput of the cross-section of the oilfield pipelines during oil transportation or complete blockage, affecting the oil transportation work. When removing plugs from oilfield pipelines, the temperature of the crude oil is increased by means of electric heating and chemical heat generation to reduce the viscosity of the crude oil and prevent impurities such as paraffin from precipitating and blocking the oil pipe.

[0003] At present, when using a hollow electric heating rod to heat an oil well string to dissolve substances such as wax, gum, and asphaltene in the crude oil that are likely to condense and precipitate, it is difficult to clean the impurities adhering to the inner wall of the pipeline by heating, thereby reducing the cleaning effect. Summary of the Utility Model

[0004] The utility model provides an oilfield pipeline plug removal device, aiming to solve the problem that although the use of a hollow electric heating rod for plug removal operation on the pipeline has a good effect, it is difficult to clean the impurities adhering to the inner wall of the pipeline as proposed in the above background technique.

[0005] To solve the above problems, the utility model is realized as follows: an oilfield pipeline plug removal device includes: a hollow electric heating rod body and a box body arranged on one side of the hollow electric heating rod body; an annular frame rotatably installed on the box body; a scraper arranged on one side of the annular frame; a gear ring fixedly installed on the annular frame; a group of support plates fixedly installed in the box body, and a gear is rotatably installed on the group of support plates, and the gear meshes with the gear ring; a motor fixedly installed on any one of the support plates, and an output shaft of the motor is fixedly connected with the gear; an adjusting mechanism arranged on the annular frame for adjusting the height of the scraper; a lubricating mechanism arranged in the box body for lubricating the gear and the gear ring.

[0006] Preferably, the box body is composed of two shells and a cover plate. Both of the two shells are rotatably connected with the annular frame. A U-shaped plate is arranged in the box body, and the U-shaped plate is fixedly connected with the two shells. The cover plate is detachably installed on one side of any one of the shells.

[0007] Preferably, the adjusting mechanism includes a first electric telescopic rod, a buffer spring and a connecting mechanism. An installation block is fixedly installed on one side of the annular frame, the first electric telescopic rod is fixedly installed on the installation block, the buffer spring is fixedly installed on an output rod of the first electric telescopic rod, and the buffer spring is located on one side of the scraper.

[0008] Preferably, annular plates are fixedly installed on both the hollow electric heating rod body and the box body. A snap ring is detachably installed on the two annular plates. Two arc-shaped plates are fixedly installed in the snap ring, and the two arc-shaped plates are respectively adapted to the card slots of the two annular plates.

[0009] Preferably, the connection mechanism includes a connecting plate, a T-shaped block and a limiting plate. The connecting plate is fixedly installed at the top of the buffer spring. The T-shaped block is fixedly installed at the bottom of the scraper. The T-shaped block is slidably connected to the connecting plate. The limiting plate is hinged to one side of the connecting plate. The limiting plate is in rotational contact with the T-shaped block. A fixing bolt is threadedly installed on the limiting plate, and the fixing bolt is threadedly connected to one side of the connecting plate.

[0010] Preferably, the lubricating mechanism includes a liquid storage box, a second electric telescopic rod, a mounting plate and a sponge block. The liquid storage box is fixedly installed on one side of the inner wall of the box body. A dropper is fixedly installed at the bottom of the liquid storage box. A valve is assembled on the dropper. The second electric telescopic rod is fixedly installed at the bottom of the liquid storage box. The mounting plate is fixedly installed on the second electric telescopic rod. The sponge block is arranged below the installed plate and above the gear.

[0011] Preferably, an I-shaped rod is slidably installed on the mounting plate. The I-shaped rod is slidably connected to the sponge block. A clamping plate is detachably installed on the sponge block, and the clamping plate is in contact with the I-shaped rod.

[0012] Compared with the related art, the oilfield pipeline plugging removal device provided by the present utility model has the following beneficial effects:

[0013] 1. The impurities on the inner wall of the pipeline are scraped off by the rotation of the scraper, thereby improving the pipeline cleaning effect. At the same time, through the setting of the adjustment mechanism, it can also ensure that the scraper will not scratch the inner wall of the pipeline, and the use effect is good. The two shells are connected by a U-shaped plate. When the annular frame rotates, the box body will not rotate synchronously, which is beneficial for the annular frame to drive the scraper to rotate;

[0014] 2. The scraper is buffered by the buffer spring, thereby ensuring that the scraper will not scratch the inner wall of the pipeline, which is beneficial for the pipeline protection operation. The annular plate and the snap ring are limited by the arc-shaped plate, thereby ensuring that the box body will not separate from the hollow electric heating rod body, which is beneficial for the pipeline cleaning operation;

[0015] 3. The T-shaped block is limited by the limiting plate, thereby ensuring that the T-shaped block will not separate from the connecting plate, and the limiting effect is good. The gear and the gear ring are lubricated by the contact of the sponge block, which is beneficial for slowing down the wear of the gear and the gear ring. The sponge block and the mounting plate are connected by the I-shaped rod, which is convenient for the subsequent replacement operation of the sponge block.

[0016] Compared with the prior art, the oilfield pipeline plugging removal device provided by this solution can be used in combination with a hollow electric heating rod, and then dissolve and scrape the substances in the pipeline, which is beneficial to improving the pipeline cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front sectional structure schematic diagram of an oilfield pipeline plugging removal device provided by the present utility model;

[0018] Figure 2 is the side sectional structure schematic diagram of an oilfield pipeline plugging removal device provided by the present utility model;

[0019] Figure 3 is the front structure schematic diagram of an oilfield pipeline plugging removal device provided by the present utility model;

[0020] Figure 4 is the assembly drawing of the middle liquid storage box and the second electric telescopic rod provided by the present utility model;

[0021] Figure 5 is the assembly drawing of the middle scraper, connecting plate and T-shaped block provided by the present utility model;

[0022] Figure 6 is the assembly drawing of the middle second electric telescopic rod and the sponge block provided by the present utility model;

[0023] Figure 7 is Figure 2 the enlarged structure schematic diagram of part A shown in

[0024] Reference numerals: 1, hollow electric heating rod body; 2, box body; 3, annular frame; 4, scraper; 5, gear ring; 6, support plate; 7, gear; 8, motor; 9, U-shaped plate; 10, first electric telescopic rod; 11, buffer spring; 12, annular plate; 13, snap ring; 14, arc plate; 15, connecting plate; 16, T-shaped block; 17, limiting plate; 18, liquid storage box; 19, second electric telescopic rod; 20, mounting plate; 21, sponge block; 22, I-shaped rod; 23, cover plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order; the orientation or positional relationship indicated by the terms "inside", "outside", "left", "right" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0026] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] An embodiment of the present utility model provides an oilfield pipeline plugging removal device, as Figures 1-7 shown. The oilfield pipeline plugging removal device includes: a hollow electric heating rod body 1 and a box body 2 provided on one side of the hollow electric heating rod body 1; a ring frame 3 rotatably mounted on the box body 2; a scraper 4 provided on one side of the ring frame 3; a gear ring 5 fixedly mounted on the ring frame 3; a group of support plates 6 fixedly mounted in the box body 2, and a gear 7 is rotatably mounted on the group of support plates 6, and the gear 7 meshes with the gear ring 5; a motor 8 fixedly mounted on any one of the support plates 6, and an output shaft of the motor 8 is fixedly connected to the gear 7; an adjusting mechanism provided on the ring frame 3 for adjusting the height of the scraper 4; a lubricating mechanism provided in the box body 2 for lubricating the gear 7 and the gear ring 5.

[0028] In this embodiment, after assembling the box body 2 to the hollow electric heating rod body 1, the hollow electric heating rod body 1 is moved into the pipeline, and then the hollow electric heating rod body 1 is started to heat the hollow electric heating rod body 1, thereby dissolving substances such as wax, gum, and asphaltene in the crude oil that are likely to condense and precipitate. When the hollow electric heating rod body 1 slides in the pipeline, first start the motor 8 to drive the gear 7 to rotate by the output shaft of the motor 8, so that the gear 7 drives the toothed ring 5 to rotate, and then the toothed ring 5 drives the annular frame 3 to rotate, so that the annular frame 3 drives the scraper 4 to rotate, so that the scraper 4 rotates along the inner wall of the pipeline to scrape the materials adhered to the inner wall of the pipeline, thereby improving the cleaning effect. By rotating the scraper 4 to scrape the impurities on the inner wall of the pipeline, the pipeline cleaning effect is further improved. At the same time, through the setting of the adjustment mechanism, it can also ensure that the scraper 4 does not scratch the inner wall of the pipeline, and the use is better.

[0029] In a further preferred embodiment of the present invention, the box body 2 is composed of two shells and a cover plate 23. Both of the two shells are rotatably connected to the annular frame 3. A U-shaped plate 9 is arranged in the box body 2, and the U-shaped plate 9 is fixedly connected to the two shells. The cover plate 23 is detachably installed on one side of any one of the shells.

[0030] In this embodiment, the two shells are connected by the U-shaped plate 9. Therefore, when the annular frame 3 rotates, the box body 2 will not rotate synchronously, which is beneficial to the annular frame 3 driving the scraper 4 to rotate.

[0031] In a further preferred embodiment of the present invention, the adjustment mechanism includes a first electric telescopic rod 10, a buffer spring 11 and a connection mechanism. An installation block is fixedly installed on one side of the annular frame 3, the first electric telescopic rod 10 is fixedly installed on the installation block, and the buffer spring 11 is fixedly installed on the output rod of the first electric telescopic rod 10. The buffer spring 11 is located on one side of the scraper 4.

[0032] In this embodiment, when the scraper 4 contacts the materials on the inner wall of the pipeline, the scraper 4 scrapes the materials. At the same time, when the materials are relatively hard and the scraper 4 cannot scrape them off, the buffer spring 11 will elastically buffer the scraper 4, so as to ensure that the scraper 4 will not get stuck on the materials and cannot rotate, and then perform a protective operation on the scraper 4. At the same time, it is also convenient to protect the inner wall of the pipeline. By buffering the scraper 4 through the buffer spring 11, it is ensured that the scraper 4 will not scratch the inner wall of the pipeline, which is beneficial to the protective operation of the pipeline.

[0033] In a further preferred embodiment of the present invention, annular plates 12 are fixedly installed on both the hollow electric heating rod body 1 and the box body 2. A snap ring 13 is detachably installed on the two annular plates 12. Two arc-shaped plates 14 are fixedly installed in the snap ring 13, and the two arc-shaped plates 14 are respectively adapted to the card slots of the two annular plates 12.

[0034] In this embodiment, before use, first move the box body 2 to one side of the hollow electric heating rod body 1, and then sleeved the snap ring 13 on the two annular plates 12, so that the arc-shaped plate 14 is located in the card slots of the two annular plates 12 to limit the two annular plates 12 and the snap ring 13, thereby performing a quick assembly operation on the box body 2. The arc-shaped plate 14 limits the annular plates 12 and the snap ring 13, thereby ensuring that the box body 2 does not separate from the hollow electric heating rod body 1, which is beneficial to the cleaning operation of the pipeline.

[0035] In a further preferred embodiment of the present invention, the connecting mechanism includes a connecting plate 15, a T-shaped block 16 and a limiting plate 17. The connecting plate 15 is fixedly installed at the top of the buffer spring 11. The T-shaped block 16 is fixedly installed at the bottom of the scraper 4. The T-shaped block 16 is slidably connected with the connecting plate 15. The limiting plate 17 is hinged on one side of the connecting plate 15. The limiting plate 17 is in rotational contact with the T-shaped block 16. A fixing bolt is threadedly installed on the limiting plate 17, and the fixing bolt is threadedly connected with one side of the connecting plate 15.

[0036] In this embodiment, when the scraper 4 needs to be replaced, first remove the fixing bolt, and then rotate the limiting plate 17 so that the limiting plate 17 rotates away from the T-shaped block 16. Then the T-shaped block 16 can be removed from the connecting plate 15 to perform the replacement operation on the scraper 4. The limiting plate 17 limits the T-shaped block 16, thereby ensuring that the T-shaped block 16 does not separate from the connecting plate 15, and the limiting effect is good.

[0037] In a further preferred embodiment of the present invention, the lubricating mechanism includes a liquid storage box 18, a second electric telescopic rod 19, a mounting plate 20 and a sponge block 21. The liquid storage box 18 is fixedly installed on one side of the inner wall of the box body 2. A dropper is fixedly installed at the bottom of the liquid storage box 18. A valve is assembled on the dropper. The second electric telescopic rod 19 is fixedly installed at the bottom of the liquid storage box 18. The mounting plate 20 is fixedly installed on the second electric telescopic rod 19. The sponge block 21 is arranged below the mounting plate 20 and above the gear 7.

[0038] In this embodiment, when it is necessary to lubricate the gear 7 and the gear ring 5, first start the valve to make the lubricating oil in the liquid storage box 18 drip onto the sponge block 21. Then start the second electric telescopic rod 19 to drive the sponge block 21 to slide down, so that the sponge block 21 slides down to contact the gear. Then start the motor 8 to drive the output shaft of the motor 8 to rotate the gear 7. Further, the gear 7 rotates to contact the sponge block 21. Since the sponge block 21 adsorbs the lubricating oil, the sponge block 21 smears the lubricating oil on the gear 7. At the same time, when the gear 7 rotates, it synchronously drives the gear ring 5 to rotate. Further, the lubricating oil on the gear 7 adheres to the gear ring 5, and the lubrication operation is carried out on the gear 7 and the gear ring 5 at the same time. By contacting the gear 7 with the sponge block 21, the gear 7 and the gear ring 5 are lubricated, which is beneficial to reducing the wear of the gear 7 and the gear ring 5.

[0039] In a further preferred embodiment of the present invention, an I-shaped rod 22 is slidably installed on the mounting plate 20. The I-shaped rod 22 is slidably connected to the sponge block 21. A clamping plate is detachably installed on the sponge block 21, and the clamping plate contacts the I-shaped rod 22.

[0040] In this embodiment, the sponge block 21 and the mounting plate 20 are connected by the I-shaped rod 22, which is convenient for subsequent replacement of the sponge block 21.

[0041] In summary, compared with the related art, the present device can be used in combination with a hollow electric heating rod to dissolve and scrape the substances in the pipeline, which is beneficial to improving the pipeline cleaning effect.

[0042] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions or other adjustments to the features in the embodiments of the present invention according to the situation without creative work, so as to obtain different technical solutions that do not deviate from the concept of the present invention in essence. These technical solutions also belong to the scope of protection of the present invention.

Claims

1. An oilfield pipeline unblocking device, characterized in that: include: A hollow electric heating rod body and a box body arranged on one side of the hollow electric heating rod body; A ring frame rotatably mounted on the box body; a scraper disposed on one side of the annular frame; A gear ring fixedly mounted on the annular frame; A group of support plates fixedly mounted in the box, a group of support plates having gears rotatably mounted thereon, the gears meshing with the gear ring; A motor fixedly mounted on any of the support plates, wherein the output shaft of the motor is fixedly connected to the gear; An adjusting mechanism provided on the annular frame for adjusting the height of the scraper; A lubrication mechanism is arranged in the box body and is used for lubricating the gears and the gear ring.

2. The oilfield pipeline unblocking device according to claim 1, characterized in that: The box body is composed of two shells and a cover plate. The two shells are rotatably connected to the annular frame. A U-shaped plate is arranged in the box body. The U-shaped plate is fixedly connected to the two shells. The cover plate is detachably mounted on one side of any one of the shells.

3. The oilfield pipeline unblocking device according to claim 1, characterized in that: The adjustment mechanism includes a first electric telescopic rod, a buffer spring and a connecting mechanism. A mounting block is fixedly installed on one side of the annular frame, the first electric telescopic rod is fixedly installed on the mounting block, the buffer spring is fixedly installed on the output rod of the first electric telescopic rod, and the buffer spring is located on one side of the scraper.

4. The oilfield pipeline unblocking device according to claim 1, characterized in that: Annular plates are fixedly mounted on the hollow electric heating rod body and the box body, and clamping rings are detachably mounted on the two annular plates. Two arc-shaped plates are fixedly mounted inside the clamping rings, and the two arc-shaped plates are respectively matched with the clamping grooves of the two annular plates.

5. The oilfield pipeline unblocking device according to claim 3, characterized in that: The connecting mechanism includes a connecting plate, a T-shaped block and a limit plate, the connecting plate is fixedly installed on the top of the buffer spring, the T-shaped block is fixedly installed on the bottom of the scraper, the T-shaped block is slidably connected to the connecting plate, the limit plate is hinged on one side of the connecting plate, the limit plate is in rotational contact with the T-shaped block, a fixing bolt is threadedly installed on the limit plate, and the fixing bolt is threadedly connected to one side of the connecting plate.

6. The oilfield pipeline unblocking device according to claim 1, characterized in that: The lubrication mechanism includes a liquid storage box, a second electric telescopic rod, a mounting plate and a sponge block. The liquid storage box is fixedly mounted on one side of the inner wall of the box body. A dropper is fixedly mounted on the bottom of the liquid storage box, and a valve is installed on the dropper. The second electric telescopic rod is fixedly mounted on the bottom of the liquid storage box, and the mounting plate is fixedly mounted on the second electric telescopic rod. The sponge block is arranged below the mounting plate and above the gear.

7. The oilfield pipeline unblocking device according to claim 6, characterized in that: An I-shaped rod is slidably mounted on the mounting plate, the I-shaped rod is slidably connected to the sponge block, a clamping plate is detachably mounted on the sponge block, and the clamping plate is in contact with the I-shaped rod.

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