Integrated sucker rod centralizer

Abstract

The utility model discloses an integrated sucker rod centralizer which comprises a centralizer body, a plurality of casing pipes are evenly arranged on the side wall of the centralizer body, sliding rods are arranged in the casing pipes in a sliding mode, the sliding rods are connected with the casing pipes through first springs, and idler wheels are installed at the ends, penetrating through the casing pipes, of the sliding rods. The centralizer body is further provided with a wall scraping structure. The oil pipe centralizer is reasonable in structure and novel in design, when the oil pipe centralizer is used, the centralizer body is placed in an oil pipe, the inner wall of the oil pipe can be cleaned in the vertical direction through the arranged scraping plate, the oil pipe is inserted into the oil pipe along with an oil pumping pipe, the motor is started, the motor works to drive the gear to rotate, then the gear ring is driven to rotate, and therefore the barrel can be driven to rotate; the scraping plate can be driven to rotate through rotation of the sleeve, the scraping plate can be kept in contact with the inner wall of the oil pipe through the arranged second spring, the inner wall of the oil pipe can be axially scraped and cleaned through rotation of the scraping plate on the inner wall of the oil pipe, and the cleaning effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil extraction equipment technical field, concretely is integral type sucker rod centralizer. BACKGROUND

[0002] Sucker rod centralizer is a kind of tool to prevent the wear and tear of the inner wall of oil pipe in the process of the up and down movement of sucker rod in oil pipe, mainly applicable to sucker rod centralizer and directional inclined well of the existence of eccentric wear of sucker rod centralizer, and it can be divided into roller type, column type and clamp type according to shape, and roller type sucker rod centralizer has the characteristics of large flow area between oil pipe, many righting points, long service life and less wear and tear to oil pipe, and is more and more used in the oil extraction process of oil well.

[0003] In the process of oil well work, carbonate crystallization and organic matter precipitation phenomenon appear on the inner wall of oil pipe, and carbonate crystallization and organic matter precipitate will be attached to the inner wall of oil pipe and the outer wall of sucker rod to form scale, reducing the service life of oil pipe. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, an integral type sucker rod centralizer is disclosed, which comprises a centralizer body, a plurality of sleeves are uniformly arranged on the side wall of the centralizer body, a sliding rod is slidably arranged in the sleeve, the sliding rod and the sleeve are connected by a first spring, the sliding rod penetrates the end of the sleeve and is provided with a roller, and a wall scraping structure is further arranged on the centralizer body.

[0005] The wall scraping structure comprises a cylinder sleeved on the centralizer body, a mounting ring is rotatably embedded in the side wall of the cylinder, a gear ring is mounted in the inner ring of the mounting ring, a plurality of sleeves are uniformly mounted on the outer ring of the mounting ring, an installation rod is slidably penetrated in the sleeve, the installation rod and the sleeve are connected by a second spring, a scraper is mounted on the end of the installation rod penetrating the sleeve, a motor is mounted on the inner lower wall of the cylinder, and a gear meshing with the gear ring is mounted on the motor.

[0006] Preferably, the scraper is an arc structure.

[0007] Preferably, a reinforcing rod is arranged between the installation rod and the scraper.

[0008] Preferably, the lower wall and the front and rear side walls of the scraper are sharp structures.

[0009] The utility model has the advantages of reasonable structure and novel design. When in use, the centralizer body is placed in the inside of the oil pipe. The scraper can clean the inner wall of the oil pipe in the vertical direction. When the sucker rod is inserted into the oil pipe, the motor is started, the motor drives the gear to rotate, and then drives the gear ring to rotate, so that the cylinder can be driven to rotate, and then the sleeve is driven to rotate. The scraper can be driven to rotate through the rotation of the sleeve. The second spring can keep the scraper in contact with the inner wall of the oil pipe. The scraper can clean the inner wall of the oil pipe in the axial direction, and the cleaning effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is a schematic front view of the utility model;

[0011] Fig. 2 It is a schematic plan view of the utility model.

[0012] In the figure: 1 - centralizer body, 2 - sleeve, 3 - sliding rod, 4 - first spring, 5 - roller, 6 - cylinder, 7 - mounting ring, 8 - gear ring, 9 - sleeve, 10 - mounting rod, 11 - second spring, 12 - scraper, 13 - motor, 14 - gear, 15 - reinforcing rod. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0014] Please refer to Figs. 1-2 , the integral type sucker rod centralizer, it includes centralizer body 1, the centralizer body 1 both ends connect the sucker rod centralizer body 1 side wall and be evenly provided with multiple sleeves 2, the number of sleeve 2 is set to eight groups, eight groups of sleeves 2 are staggered equidistantly distributed on the two sides of the outer surface of centralizer body 1 from top to bottom, eight groups of sleeves 2 are divided into four layers, and the included angle between adjacent two layers of sleeves 2 is 90 °, through the setting of eight groups of sleeves 2, the centralizer body 1 can be kept in the middle of the oil pipe, avoids the problem that the sucker rod is side-worn in the long-term use, effectively prolongs the service life of the sucker rod, further improves the practicability of the oilfield elastic sucker rod centralizer, the sleeve 2 is slidably provided with a sliding rod 3, and the sliding rod 3 is connected with the sleeve 2 through a first spring 4. The sliding rod 3 penetrates the sleeve 2 and is provided with a roller 5. The above is a known technology for those skilled in the art, and the specific structure and working principle will not be described in detail. The centralizer body 1 is also provided with a wall scraping structure.

[0015] The wall scraping structure comprises a cylinder 6 sleeved on the centralizer body 1, the side wall of the cylinder 6 is rotationally embedded with a mounting ring 7, the inner ring of the mounting ring 7 is mounted with a gear ring 8, and the outer ring of the mounting ring 7 is uniformly mounted with a plurality of sleeves 9, the mounting rod 10 is slidably penetrated in the sleeve 9, the mounting rod 10 and the sleeve 9 are connected through the second spring 11, the end of the mounting rod 10 penetrating the sleeve 9 is mounted with a scraper 12, the inner lower wall of the cylinder 6 is mounted with a motor 13, and the motor 13 is mounted with a gear 14 engaged with the gear ring 8;

[0016] The motor 13 is of a remote control type, the motor 13 is started, the motor 13 works to drive the gear 14 to rotate, thereby driving the gear ring 8 to rotate, so as to drive the cylinder 6 to rotate, thereby driving the sleeve 9 to rotate, through the rotation of the sleeve 9, the scraper 12 can be driven to rotate, through the second spring 11 arranged, the scraper 12 can be kept in contact with the inner wall of the oil pipe, through the rotation of the scraper 12 on the inner wall of the oil pipe, the inner wall of the oil pipe can be axially scraped and cleaned, through the movement of the sucker rod in the pipeline, the inside of the oil pipe can be scraped and cleaned in the vertical direction, and the cleaning effect is good;

[0017] The scraper 12 is of an arc-shaped structure;

[0018] A reinforcing rod 15 is arranged between the mounting rod 10 and the scraper 12, for reinforcing the connection between the mounting rod 10 and the scraper 12;

[0019] The lower wall and the front and rear side walls of the scraper 12 are all of a pointed structure, so as to facilitate the scraping and cleaning of the inner wall of the oil pipe;

[0020] A protective cover is sleeved on the outer wall of the cylinder 6, the protective cover is provided with a through slot for the scraper 12 and the roller 5 to pass through, and the inside of the protective cover is protected.

[0021] In use, the centralizer body 1 is placed in the inside of the oil pipe, as the sucker rod is deepened into the oil pipe, the scraper 12 arranged can clean the inner wall of the oil pipe in the vertical direction, as the sucker rod is deepened into the oil pipe, the motor 13 is started, the motor 13 works to drive the gear 14 to rotate, thereby driving the gear ring 8 to rotate, so as to drive the cylinder 6 to rotate, thereby driving the sleeve 9 to rotate, through the rotation of the sleeve 9, the scraper 12 can be driven to rotate, through the second spring 11 arranged, the scraper 12 can be kept in contact with the inner wall of the oil pipe, through the rotation of the scraper 12 on the inner wall of the oil pipe, the inner wall of the oil pipe can be axially scraped and cleaned, and the cleaning effect is good.

[0022] In the description of the present application, it should be noted that unless specifically defined and limited otherwise, the terms'mounting', 'connection', 'linking', 'communication' should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements, or wireless connection, or wired connection. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An integrated oil sucker rod centralizer, comprising a centralizer body (1), the centralizer body (1) is uniformly provided with a plurality of sleeves (2) on the side wall, a sliding rod (3) is slidably arranged in the sleeve (2), the sliding rod (3) and the sleeve (2) are connected through a first spring (4), and a roller (5) is installed at the end of the sliding rod (3) penetrating the sleeve (2), characterized in that, The centralizer body (1) is further provided with a wall scraping structure; The wall scraping structure comprises a cylinder (6) sleeved on the centralizer body (1), the side wall of the cylinder (6) is rotatably embedded with a mounting ring (7), the inner ring of the mounting ring (7) is mounted with a gear ring (8), the outer ring of the mounting ring (7) is uniformly mounted with a plurality of sleeves (9), the sleeve (9) is slidably penetrated by a mounting rod (10), the mounting rod (10) and the sleeve (9) are connected through a second spring (11), the end of the mounting rod (10) penetrating the sleeve (9) is mounted with a scraper (12), the inner lower wall of the cylinder (6) is mounted with a motor (13), the motor (13) is mounted with a gear (14) engaged with the gear ring (8).

2. The integral sucker rod centralizer of claim 1, wherein, The scraper (12) is in an arc-shaped structure.

3. The integral sucker rod centralizer of claim 1, wherein, A reinforcing rod (15) is arranged between the mounting rod (10) and the scraper (12).

4. The integral sucker rod centralizer of claim 1, wherein, The lower wall and the front and rear side walls of the scraper (12) are in pointed structures.

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