CN217813406U

CN217813406U - Automatic paraffin removal device for sucker rod

Info

Publication number: CN217813406U
Application number: CN202222340688.0U
Authority: CN
Inventors: 师力平
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2022-11-15
Anticipated expiration: 2032-09-02

Abstract

The utility model discloses an automatic paraffin removal device of sucker rod belongs to oil field exploitation equipment technical field, include: the sucker rod and the telescopic hydraulic cylinder; the sucker rod comprises a sucker rod body, a plurality of scrapers and a movable plate, wherein the scrapers are arranged on the periphery of the sucker rod body and are connected with the outer wall of the sucker rod body through an adjusting mechanism, the adjusting mechanism comprises an installation cylinder connected to the periphery of the sucker rod body, a plurality of vertical rods connected between two transverse inner walls of the installation cylinder and the movable plate connected to the periphery of the vertical rods in a sliding mode, a connecting rod is fixed to the top end of the movable plate, one end, far away from the movable plate, of the connecting rod penetrates through a through hole formed in the outer wall of the installation cylinder and extends to the outside of the installation cylinder, the scrapers are connected to the top end of the connecting rod, and a compression spring is sleeved on the periphery of the vertical rods; the front end of the sucker rod is connected with a fixing frame, and a driving motor is arranged inside the fixing frame. The automatic paraffin removal device for the sucker rod has the advantages of simple structure and strong practicability.

Description

Automatic paraffin removal device for sucker rod

Technical Field

The utility model belongs to the technical field of oil field exploitation equipment, especially, relate to an automatic paraffin removal device of sucker rod.

Background

Oil wells can wax the inner wall of the tubing during production, the root cause being wax contained in the crude oil produced by the well. The wax precipitation of oil well includes two processes, first, the wax is separated from the crude oil and then is gathered and adhered on the pipe wall. The wax originally dissolved in the crude oil is precipitated in the extraction process due to the reduced wax dissolving capacity of the crude oil. When the composition, temperature and pressure of the crude oil change to reduce the dissolving capacity of the crude oil, a part of wax is separated out from the crude oil to cause wax precipitation on the pipe wall.

Wax removal device is fixed with the outside of flexible pneumatic cylinder and pit shaft earlier mostly, then makes a round trip clean with scraper and sucker rod connection on the output shaft of flexible pneumatic cylinder, relies on the power that reciprocates that flexible pneumatic cylinder produced when striking off to clean, but current scraper is fixed mostly, difficult regulation to can't satisfy the oil pipe clearance of different inner walls.

Therefore, the automatic paraffin removal device for the sucker rod is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving prior art, current scraper is mostly fixed, is difficult for adjusting to the unable problem of satisfying the oil pipe clearance of different inner walls, and the automatic paraffin removal device of sucker rod who proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an automatic paraffin removal device for sucker rods comprises:

a sucker rod and a telescopic hydraulic cylinder;

the periphery of sucker rod is provided with a plurality of scrapers, and is connected through adjustment mechanism between scraper and the sucker rod outer wall, adjustment mechanism is including connecting in the installation section of thick bamboo of sucker rod periphery, connecting a plurality of montants and the movable plate of sliding connection in a plurality of montant periphery between two horizontal inner walls of installation section of thick bamboo, the top of movable plate is fixed with the connecting rod, and the one end that the movable plate was kept away from to the connecting rod passes the through-hole that the installation section of thick bamboo outer wall was seted up and extends to the outside of installation section of thick bamboo, be connected with the scraper on the top of connecting rod, the periphery cover of montant is equipped with compression spring.

Through above-mentioned technical scheme, move the connecting rod through inwards pressing, the connecting rod drives the vertical motion of movable plate on a plurality of montants to extrude compression spring, through compression spring's elastic effect, make the scraper contradict on the wax layer, not only be applicable to the paraffin removal demand of different pipe diameters, still improve paraffin removal effect.

Preferably, the front end of sucker rod is connected with fixed frame, the inside of fixed frame is provided with driving motor, driving motor's output has the dwang through the coupling joint, the periphery of dwang is connected with helical blade.

Through above-mentioned technical scheme, drive the dwang through driving motor and rotate, the dwang splits through helical blade to the wax coat on the oil pipe inner wall, makes things convenient for the scraper to strike off the wax coat, improves whole work efficiency.

Preferably, the port department lid of fixed frame open end has closed the apron, and is connected through fixing bolt between apron and the fixed frame, the mounting hole that supplies the dwang to pass is seted up on the surface of apron.

Through above-mentioned technical scheme, through opening the apron, open fixed frame, conveniently install or dismantle the driving motor in the fixed frame.

Preferably, the output end of the telescopic hydraulic cylinder is connected with a piston rod, the rear wall of the sucker rod is rotatably connected with a sleeve, an internal thread is arranged on the inner wall of the sleeve, and an external thread which is matched and connected with the internal thread is arranged at the end part of the piston rod.

Through above-mentioned technical scheme, be connected through external screw thread and interior screw thread fit to connect the equipment to sleeve and movable rod.

Preferably, a threaded hole is formed in the surface of the piston rod, and a locking bolt matched and connected with the threaded hole is connected in a threaded manner in the threaded hole formed in the outer wall of the sleeve.

Through the technical scheme, the sleeve and the piston rod which are connected are fixed through the locking bolt and the threaded hole.

Preferably, four of the scrapers are uniformly arranged in a group in a circumference direction about the central axis of the sucker rod.

Through the technical scheme, the paraffin removal requirements of oil pipes with different inner diameters can be met.

Preferably, the thickness of helical blade is four millimeters, and is the heliciform winding dwang.

Through the technical scheme, the thickness of the helical blade is selected according to the wax precipitation degree of the oil pipe in different regions.

To sum up, the utility model discloses a technological effect and advantage: according to the automatic paraffin removal device for the sucker rod, the connecting rod is pressed inwards, the connecting rod drives the moving plate to vertically move on the vertical rods and extrude the compression springs, and the scrapers are abutted to the wax layer through the elastic effect of the compression springs, so that the automatic paraffin removal device is suitable for paraffin removal requirements of different pipe diameters, and the paraffin removal effect is improved;

the rotating rod is driven to rotate by the driving motor, and splits the wax layer on the inner wall of the oil pipe through the helical blade, so that the wax layer can be conveniently scraped by the scraper, and the overall working efficiency is improved; the automatic paraffin removal device for the sucker rod has the advantages of simple structure and strong practicability.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the combination of the piston rod and the sleeve according to the present invention;

fig. 3 is a longitudinal sectional view of the fixing frame of the present invention;

fig. 4 is a sectional view of the adjusting mechanism of the present invention.

In the figure: 1. a sucker rod; 2. an adjustment mechanism; 21. mounting the cylinder; 22. a vertical rod; 23. a compression spring; 24. moving the plate; 25. a connecting rod; 3. a scraper; 4. a fixing frame; 5. rotating the rod; 6. a helical blade; 7. a piston rod; 8. a telescopic hydraulic cylinder; 9. a sleeve; 10. an internal thread; 11. an external thread; 12. locking the bolt; 13. a threaded hole; 14. a drive motor; 15. a cover plate; 16. and fixing the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1, 2 and 3, an automatic paraffin removal device for sucker rods comprises: the sucker rod comprises a sucker rod 1 and a telescopic hydraulic cylinder 8, wherein a plurality of scrapers 3 are arranged on the periphery of the sucker rod 1, the four scrapers 3 are uniformly arranged in a group in a circumferential manner relative to the central axis of the sucker rod 1, and the scrapers 3 are connected with the outer wall of the sucker rod 1 through an adjusting mechanism 2;

referring to fig. 1 and 4, adjustment mechanism 2 is including connecting in the installation section of thick bamboo 21 of 1 periphery of sucker rod, connect a plurality of montants 22 and the movable plate 24 of sliding connection in a plurality of montant 22 periphery between two horizontal inner walls of installation section of thick bamboo 21, the top of movable plate 24 is fixed with connecting rod 25, and connecting rod 25 keeps away from the one end of movable plate 24 and passes the through-hole that installation section of thick bamboo 21 outer wall was seted up and extend to the outside of installation section of thick bamboo 21, be connected with scraper 3 on connecting rod 25's the top, montant 22's periphery cover is equipped with compression spring 23, through inwards pressing movable connecting rod 25, connecting rod 25 drives movable plate 24 vertical motion on a plurality of montants 22, and extrude compression spring 23, elastic effect through compression spring 23, make scraper 3 contradict on the wax layer, promote repeatedly through flexible pneumatic cylinder 8, make scraper 3 strike off layer upon layer to the wax layer.

Referring to fig. 1 and 3, a fixed frame 4 is connected to the front end of a sucker rod 1, a driving motor 14 is arranged inside the fixed frame 4, an output end of the driving motor 14 is connected to a rotating rod 5 through a coupler, a helical blade 6 is connected to the periphery of the rotating rod 5, the helical blade 6 is four millimeters thick and spirally wound around the rotating rod 5, the driving motor 14 drives the rotating rod 5 to rotate, and the rotating rod 5 splits a wax layer on the inner wall of an oil pipe through the helical blade 6; the port department lid of fixed frame 4 open end has closed apron 15, and is connected through fixing bolt 16 between apron 15 and the fixed frame 4, and the mounting hole that supplies dwang 5 to pass is seted up on the surface of apron 15, through opening apron 15, opens fixed frame 4, conveniently installs or dismantles the driving motor 14 in the fixed frame 4.

Referring to fig. 1 and 2, the output of flexible pneumatic cylinder 8 is connected with piston rod 7, it is connected with sleeve 9 to rotate on the back wall of sucker rod 1, be provided with internal thread 10 on sleeve 9's the inner wall, the tip of piston rod 7 is provided with the external screw thread 11 of being connected with internal thread 10 cooperation, piston rod 7 seted up threaded hole 13 on the surface, threaded connection has the locking bolt 12 of being connected with threaded hole 13 cooperation in the screw that sleeve 9 outer wall was seted up, through piston rod 7 and sleeve 9 threaded connection, locking bolt 12 fixes both simultaneously, thereby be convenient for install or dismantle sucker rod 1 and flexible pneumatic cylinder 8, make things convenient for the bulk movement transport.

The working principle is as follows: when using, at first move connecting rod 25 through inside pressure, connecting rod 25 drives vertical motion on a plurality of montants 22 of movable plate 24, and extrude compression spring 23, make scraper 3 get into in the oil pipe, after that through compression spring 23's elastic effect, make scraper 3 contradict on the wax layer, at this moment start driving motor 14, driving motor 14 drives dwang 5 and rotates, dwang 5 splits through the wax layer of helical blade 6 on to the oil pipe inner wall, flexible pneumatic cylinder 8 drives scraper 3 through piston rod 7 and cleans in oil pipe repeatedly afterwards.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An automatic paraffin removal device for sucker rods comprises:

a sucker rod (1) and a telescopic hydraulic cylinder (8);

its characterized in that, the periphery of sucker rod (1) is provided with a plurality of scrapers (3), and is connected through adjustment mechanism (2) between scraper (3) and sucker rod (1) outer wall, adjustment mechanism (2) are including connecting in installation section of thick bamboo (21) of sucker rod (1) periphery, connecting in a plurality of montants (22) between two horizontal inner walls of installation section of thick bamboo (21) and sliding connection movable plate (24) in a plurality of montants (22) periphery, the top of movable plate (24) is fixed with connecting rod (25), and connecting rod (25) keep away from the one end of movable plate (24) and pass the through-hole that installation section of thick bamboo (21) outer wall was seted up and extend to the outside of installation section of thick bamboo (21), be connected with scraper (3) on the top of connecting rod (25), the periphery cover of montant (22) is equipped with compression spring (23).

2. The automatic paraffin removal device for the sucker rod according to claim 1, wherein the front end of the sucker rod (1) is connected with a fixed frame (4), the inside of the fixed frame (4) is provided with a driving motor (14), the output end of the driving motor (14) is connected with a rotating rod (5) through a coupler, and the periphery of the rotating rod (5) is connected with a helical blade (6).

3. The automatic paraffin removal device for sucker rods according to claim 2, wherein the port of the opening end of the fixing frame (4) is covered with a cover plate (15), the cover plate (15) is connected with the fixing frame (4) through a fixing bolt (16), and the surface of the cover plate (15) is provided with a mounting hole for the rotating rod (5) to pass through.

4. The automatic paraffin removal device for the sucker rod according to claim 1, wherein the output end of the telescopic hydraulic cylinder (8) is connected with a piston rod (7), the rear wall of the sucker rod (1) is rotatably connected with a sleeve (9), the inner wall of the sleeve (9) is provided with an internal thread (10), and the end part of the piston rod (7) is provided with an external thread (11) which is matched and connected with the internal thread (10).

5. The automatic paraffin removal device for sucker rods according to claim 4, wherein the surface of the piston rod (7) is provided with a threaded hole (13), and a locking bolt (12) which is matched and connected with the threaded hole (13) is in threaded connection with the threaded hole formed in the outer wall of the sleeve (9).

6. The automatic paraffin removal device for sucker rods according to claim 1, wherein four scrapers (3) are arranged in a group in a circumferential uniform manner about the central axis of the sucker rod (1).

7. The automatic paraffin removal device for sucker rods according to claim 2, wherein the thickness of the helical blade (6) is four millimeters and the rotating rod (5) is spirally wound.