CN217841563U

CN217841563U - Sucker rod centralizer suitable for oil well operation

Info

Publication number: CN217841563U
Application number: CN202221835796.9U
Authority: CN
Inventors: 顾菁; 詹昭
Original assignee: Vision Holdings Ltd
Current assignee: Vision Holdings Ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-11-18
Anticipated expiration: 2032-07-14

Abstract

The utility model belongs to the technical field of sucker rod centralizer and specifically relates to a sucker rod centralizer suitable for oil well operation, including the centralizer body, the central point department of the inboard central point of centralizer body is provided with the pole pipe, the inboard outside that just is located the pole pipe of centralizer body is provided with at least one oil leakage groove, the position department that is close to the oil leakage groove top between pole pipe and the oil leakage groove is provided with the spread groove, pole pipe and oil leakage groove are linked together through the spread groove, the inboard of oil leakage groove is provided with the filter screen, the inboard of centralizer body and the inboard that is located the pole pipe are installed the spliced pole, the inboard sliding connection of spliced pole has the slip post, and slip post and spread groove sliding connection; it can be with the fine sand striking to the bottom of filter screen on the filter screen, avoids fine sand to block up the filter screen, and then effectual reduction fine sand rises along with fluid always to reduce the dead condition of card appear in the sucker rod.

Description

Sucker rod centralizer suitable for oil well operation

Technical Field

The utility model belongs to the technical field of the sucker rod centralizer and specifically relates to a sucker rod centralizer suitable for oil well operation.

Background

With the progress of the petroleum industry technology, wells with larger inclination and horizontal wells are increased day by day, the sucker rod centralizer is widely applied, and the eccentric wear of the screw pump sucker rod is mainly solved.

During actual oil pumping, a lot of fine sand can be carried along with oil liquid, and during oil extraction, the fine sand can be gradually deposited due to gravity because of the reduction of the flowing speed of fluid in an oil pipe, so that the phenomenon that the sucker rod is stuck or even stuck and separated sometimes occurs.

In order to effectively avoid the situation, install some devices of straining sand additional on sucker rod centralizer, like straining sand groove, filter body etc. when using the back filter body, fine sand can pass through the setting of filter screen, moves to the bottom of filter screen, carries out certain filtration to fine sand, however, if the fine sand is too much to filter the body jam, then fine sand still can rise along with fluid always, and then still probably causes the sucker rod the dead condition of card to appear.

SUMMERY OF THE UTILITY MODEL

In order to solve the easy jam of current sand filter device, cause the dead problem of sucker rod card, the utility model aims to provide a sucker rod centralizer suitable for oil well operation, it can be with the fine sand striking to the bottom of filter screen on the filter screen, avoids fine sand to block up the filter screen, and then effectual reduction fine sand rises along with fluid always to reduce the dead condition of card appear in the sucker rod.

In order to solve the above problem, the utility model adopts the following technical scheme: a sucker rod centralizer suitable for oil well operation comprises a centralizer body, wherein a rod passing pipe is arranged at the central position of the inner side of the centralizer body, at least one oil leakage groove is formed in the inner side of the centralizer body and positioned on the outer side of the rod passing pipe, a connecting groove is formed between the rod passing pipe and the oil leakage groove and close to the top end of the oil leakage groove, the rod passing pipe is communicated with the oil leakage groove through the connecting groove, and a filter screen is arranged on the inner side of the oil leakage groove; a connecting column is mounted on the inner side of the centralizer body and positioned on the inner side of the rod passing pipe, a sliding column is connected to the inner side of the connecting column in a sliding mode and is connected with the connecting groove in a sliding mode, and a second spring is arranged on the inner side of the connecting column and positioned at one end, close to the connecting column, of the sliding column; the striking subassembly is installed to the inboard of filter screen, the striking subassembly is used for the striking the filter screen through the cooperation of second spring and striking subassembly, strikes the fine sand on the filter screen to the bottom of filter screen, avoids fine sand to block up the filter screen to reduce the dead condition of sucker rod card and appear.

In some embodiments, the impact assembly includes a moving bar, the moving bar is slidably connected to the inner side of the filter screen, a first spring is disposed on the outer side of the moving bar and at the bottom of the filter screen, the first spring is fixedly connected to the filter screen, a plurality of impact bars are fixed on the outer side of the moving bar and at the top of the filter screen, a moving block is disposed at the top of the moving bar, and corresponding tangential surfaces are disposed at the top of one side of the sliding column, which is close to the moving block, and the bottom of one side of the moving block, which is close to the sliding column.

In some embodiments, at least one side of the connecting column is fixed with a connecting sloping block, a fixing strip is installed on the outer side of the centralizer body, a mounting body is fixed on one side of the fixing strip close to the connecting sloping block, and the mounting body and the connecting sloping block are provided with corresponding inclined planes.

In some embodiments, the tangential surfaces of the moving block and the sliding column are provided with a plurality of rubber bumps, and the sliding column and the moving block are relatively static through the friction force of the rubber bumps.

In some embodiments, a connecting square plate is fixed at the bottom of the mounting body, and the connecting square plate blocks the connecting inclined block through the arrangement of the connecting square plate, so that the connecting inclined block can be prevented from moving to the bottom of the mounting body when moving downwards.

In some embodiments, the metal block is arranged on the inner side of the filter screen and at a position corresponding to the impact strip, so that the impact strip can impact the metal block when impacting, and the filter screen is prevented from being impacted to be damaged.

Compared with the prior art, the beneficial effects of the utility model are that, this scheme is through shifting up the slip post, and then drives the tangent plane and shift up to through the compression to first spring, thereby when losing the upward power through striking the strip, descend and lead to the fact the striking to the filter screen, and then with the fine sand striking on the filter screen to the bottom of filter screen, avoid fine sand to block up the filter screen, and then effectual fine sand that reduces rises along with fluid always, thereby reduce the sucker rod and appear the dead condition of card.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a sucker rod centralizer;

FIG. 2 is a cross-sectional view of a centralizer body;

FIG. 3 is a schematic view of the structure between the through-rod pipe, the connecting groove and the filter screen;

FIG. 4 is a schematic view of the structure between the filter screen, the impact bar and the cutting plane;

FIG. 5 is an enlarged view taken at A in FIG. 4;

FIG. 6 is a schematic structural view of the connection between the connection blocks, the connection square plates and the section;

FIG. 7 is a cross-sectional view of the connecting stud;

in the figure: 1. a centralizer body; 2. a rod-passing pipe; 3. an oil leakage groove; 4. connecting grooves; 5. a filter screen; 6. a sliding post; 7. connecting columns; 8. a moving bar; 9. a moving block; 10. cutting into noodles; 11. an impact bar; 12. a first spring; 13. a rubber bump; 14. connecting the inclined blocks; 15. an installation body; 16. connecting the square plates; 17. a fixing strip; 18. a second spring.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

As shown in fig. 1 to 7, a sucker rod centralizer suitable for oil well operation comprises a centralizer body 1, wherein a rod passing pipe 2 is arranged at the central position of the inner side of the centralizer body 1, at least one oil leakage groove 3 is arranged at the inner side of the centralizer body 1 and at the outer side of the rod passing pipe 2, a connecting groove 4 is arranged between the rod passing pipe 2 and the oil leakage groove 3 and at a position close to the top end of the oil leakage groove 3, the rod passing pipe 2 is communicated with the oil leakage groove 3 through the connecting groove 4, and a filter screen 5 is arranged at the inner side of the oil leakage groove 3; a connecting column 7 is arranged on the inner side of the centralizer body 1 and on the inner side of the rod passing pipe 2, a sliding column 6 is connected to the inner side of the connecting column 7 in a sliding mode, the sliding column 6 is connected with the connecting groove 4 in a sliding mode, and a second spring 18 is arranged on the inner side of the connecting column 7 and on one end, close to the connecting column 7, of the sliding column 6; an impact assembly is mounted on the inner side of the filter screen 5 and is used for impacting the filter screen 5.

As shown in fig. 4 and 5, the impact assembly includes a moving bar 8, the moving bar 8 is slidably connected to the inner side of the filter screen 5, a first spring 12 is disposed at the outer side of the moving bar 8 and at the bottom of the filter screen 5, the first spring 12 is fixedly connected to the filter screen 5, a plurality of impact bars 11 are fixed at the outer side of the moving bar 8 and at the top of the filter screen 5, metal blocks are disposed at positions corresponding to the impact bars 11 at the inner side of the filter screen 5, so that the impact bars 11 can impact the metal blocks when impacting, the filter screen 5 is prevented from being impacted to be damaged, a moving block 9 is disposed at the top of the moving bar 8, corresponding cut surfaces 10 are disposed at the top of the sliding column 6 near the moving block 9 and at the bottom of the moving block 9 near the sliding column 6, when the oil rod ascends, the connecting column 7 and the sliding column 6 can be driven to move upwards, and further through the contact between the sliding column 6 and the moving block 9, the sliding column 6 drives the moving block 9 to move upwards, the friction force between the sliding column 6 and the moving block 9 is lifted through the arranged rubber bumps 13, so that the sliding column 6 cannot retract, the first spring 12 is continuously compressed when the moving block 9 moves upwards, the moving block 9 cannot rise after the first spring 12 is compressed to a certain degree, so that the sliding column 6 retracts to the inner side of the connecting column 7, the moving block 9 loses the lifting of the section 10, the moving strip 8 moves downwards through the arrangement of the first spring 12, the striking strip 11 strikes the filter screen 5 through the arrangement of the striking strip 11, so that fine sand is struck to the bottom of the filter screen 5, the moving block 9 and the section 10 on the sliding column 6 are both provided with a plurality of rubber bumps 13, and when the sliding column 6 and the moving block 9 are attached through the arrangement of the rubber bumps 13, the friction force is greatly increased.

As shown in fig. 6, at least one side of the connecting column 7 is fixed with a connecting sloping block 14, the outer side of the centralizer body 1 is provided with a fixing strip 17, one side of the fixing strip 17 close to the connecting sloping block 14 is fixed with an installation body 15, and the installation body 15 and the connecting sloping block 14 are provided with corresponding inclined planes.

When the sucker rod moves downwards, the sliding column 6 and the connecting column 7 are driven to move downwards, the connecting inclined block 14 is driven to move downwards, in the process of moving downwards of the connecting inclined block 14, an inclined plane is arranged between the connecting inclined block 14 and the mounting body 15, so that the sliding column 6 is recovered to the inner side of the connecting column 7 when the connecting inclined block 14 moves downwards, the sliding column 6 is made to move to the bottom of the moving block 9, when the sliding column moves upwards, the sliding column 6 and the moving block 9 are made to be relatively static through the friction force of the sliding column 6 and the moving block 9 through the rubber bumps 13, when the sliding column 6 moves upwards, the sliding column directly moves upwards, the connecting square plate 16 is fixed at the bottom of the mounting body 15, and through the arrangement of the connecting square plate 16, the connecting square plate 16 blocks the connecting inclined block 14, and when the connecting inclined block 14 moves downwards, the sliding column can be prevented from moving to the bottom of the mounting body 15.

When a user uses the device, the oil is driven to rise through the vertical reciprocating motion of an external oil rod, when the oil rises, most of the oil can move to the oil leakage groove 3 along the connecting groove 4 through the arrangement of the connecting groove 4, when the oil falls into the oil leakage groove 3, stone sand and the like can run to the bottom of the oil due to self gravity, and then run to the bottom of the filter screen 5, along with the reciprocating motion of the oil pumping rod, the oil inside the oil leakage groove 3 can enter the inner side of the rod passing pipe 2 again through the connecting groove 4 through suction force, along with the upward movement of the oil pumping rod, and fine sand can stay at the bottom of the filter screen 5 through the separation of the filter screen 5;

when the oil pole ascends, can drive spliced pole 7 and slip post 6 and move up, and then through the contact between slip post 6 and the movable block 9, make slip post 6 drive movable block 9 and move up, through the rubber convex block 13 that sets up, make the frictional force between slip post 6 and the movable block 9 promote, and then make slip post 6 can not return and contract, when moving up at movable block 9, can continuously compress first spring 12, after first spring 12 compresses to certain degree, movable block 9 can't rise, and then make slip post 6 return the inboard to spliced pole 7, movable block 9 has lost carrying of tangent plane 10 this moment, setting through first spring 12, make removal strip 8 move down, and through the setting of striking strip 11, make striking strip 11 strike filter screen 5, make striking strip 11 can strike the bottom of filter screen 5 with sand etc. on the filter screen 5, clean filter screen 5.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a sucker rod centralizer suitable for oil well operation, includes centralizer body (1), its characterized in that: the utility model discloses a centering device, including centralizer body (1), connecting post (7), connecting post (6), striking subassembly, pole pipe (2) and connecting groove (3), the inboard central point department of putting of centralizer body (1) is provided with pole pipe (2), the inboard of centralizer body (1) just is located the outside of crossing pole pipe (2) is provided with at least one oil leak groove (3), cross pole pipe (2) with the position department of just being close to oil leak groove (3) top between oil leak groove (3) is provided with spread groove (4), cross pole pipe (2) with oil leak groove (3) pass through spread groove (4) are linked together, the inboard of oil leak groove (3) is provided with filter screen (5), the inboard of centralizer body (1) just is located the inboard of crossing pole pipe (2) is installed spliced pole (7), the inboard sliding connection of spliced pole (7) has slide column (6), just slide column (6) with spread groove (4) sliding connection, the inboard of spliced pole (7) just is located slide column (6) one end that slide column (7) is close to spliced pole is provided with second spring (18), the inboard of filter screen (5) is installed the striking subassembly, the striking subassembly is used for striking the filter screen (5).

2. The sucker rod centralizer suitable for oil well operations of claim 1, wherein: the striking subassembly is including removing strip (8), remove strip (8) sliding connection in the inboard of filter screen (5), the outside of removing strip (8) just is located the bottom of filter screen (5) is provided with first spring (12), first spring (12) with filter screen (5) fixed connection, the outside of removing strip (8) just is located the top of filter screen (5) is fixed with a plurality of striking strips (11), the top of removing strip (8) is provided with movable block (9), slip post (6) are close to the top of movable block (9) one side and the bottom of movable block (9) one side is close to slip post (6) one side is provided with corresponding tangent plane (10).

3. The sucker rod centralizer of claim 1 adapted for oil well operations, wherein: the connecting device is characterized in that at least one side of the connecting column (7) is fixedly provided with a connecting inclined block (14), a fixing strip (17) is installed on the outer side of the centralizer body (1), an installation body (15) is fixed on one side, close to the connecting inclined block (14), of the fixing strip (17), and the installation body (15) and the connecting inclined block (14) are provided with corresponding inclined planes.

4. The sucker rod centralizer of claim 2 adapted for oil well operations, wherein: the tangent plane (10) on the moving block (9) and the sliding column (6) are provided with a plurality of rubber bumps (13).

5. The sucker rod centralizer suitable for oil well operations of claim 3, wherein: and a connecting square plate (16) is fixed at the bottom of the mounting body (15).

6. The sucker rod centralizer of claim 2 adapted for oil well operations, wherein: and a metal block is arranged on the inner side of the filter screen (5) and at a position corresponding to the impact strip (11).