CN218716606U

CN218716606U - Anti-abrasion centralizer

Info

Publication number: CN218716606U
Application number: CN202222997506.7U
Authority: CN
Inventors: 卢绪昌; 王跟润; 卢京; 王静
Original assignee: Tianjin Gangfu Petroleum Machinery Manufacturing Co ltd
Current assignee: Tianjin Gangfu Petroleum Machinery Manufacturing Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-03-24
Anticipated expiration: 2032-11-11

Abstract

The utility model belongs to the technical field of oil extraction equipment, in particular to an anti-abrasion centralizer; the method specifically comprises the following steps: the device comprises a centralizer cylinder and a centralizer block, wherein the centralizer block is arranged on the outer side of the centralizer cylinder, the surface of the centralizer block protrudes out of the radial surface of the centralizer cylinder, the centralizer block is connected with the centralizer cylinder in a sliding manner, and the centralizer block can slide up and down or rotate on the centralizer cylinder through balls; a bow-shaped seam is also arranged along the length direction of the righting block. The utility model has the advantages that: the surface of the centering block is set to be a smooth cambered surface, so that the contact between the centering block and the oil pipe is the contact between the cambered surface and the cambered surface, and the damage possibly caused by friction is reduced; when the centering block needs to be replaced, only the joint needs to be opened, the centering block is taken down from the cylinder body of the centering device, the centering block can be replaced quickly, and the maintenance efficiency of the centering device is improved.

Description

Anti-abrasion centralizer

Technical Field

The utility model belongs to the technical field of the oil recovery equipment, especially, relate to an abrasionproof centralizer.

Background

In the oil exploitation production activity, when the sucker rod moves up and down in the oil pipe, friction is generated between the sucker rod and the oil pipe, the sucker rod is easily contacted with the oil pipe, and the sucker rod falls off or is damaged to influence the oil exploitation efficiency.

In order to prevent the sucker rod from contacting with the oil pipe in the prior art, a centralizer device is generally adopted, and the specific use method is as follows: in placing the sucker rod with the centralizer, through with the piece protrusion in the radial surface of sucker rod of righting on the centralizer, when the activity from top to bottom between oil pipe and the sucker rod, the piece of righting can prevent the friction between sucker rod and the oil pipe, reduces the damage to the sucker rod. According to patent application No.: 201610911042.X, patent name: the centralizer can find that the shape of the prior centralizing block is mostly a rib type, wherein, the rib is used for preventing friction, and a channel in the middle of the rib is used for liquid flowing; the technical problem that occurs is that when the rib-shaped centralizing block rubs with the oil pipe, the side surface is easy to damage due to the strip-shaped structure of the rib, and after long-time use, the rib is easy to break, thereby further influencing the oil exploitation work.

The applicant is a company specially manufacturing petroleum machinery products, and applies for a hollow rod centralizer for a sucker rod independently developed by a company in 2018, 10 and 30 months, and the patent application numbers are as follows: 201820057707.X; in order to solve the technical problems, the inventor continues to develop the centralizer in the field, and aims to provide the centralizer which can be more wear-resistant in use.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an abrasionproof centralizer sets up to level and smooth surface through the piece surface shape of rightting with on the centralizer, reduces the piece of righting and the friction problem of oil pipe in the exploitation, and the cracked possibility of the reducible surface in level and smooth surface in addition prolongs the life of centralizer.

The technical scheme of the utility model is that:

the utility model provides an abrasionproof centralizer, includes centralizer barrel and righting piece, specifically includes: the centralizer is characterized in that the centralizer is arranged on the outer side of the cylinder body of the centralizer, the surface of the centralizer protrudes out of the radial surface of the cylinder body of the centralizer, the centralizer is rotatably connected with the cylinder body of the centralizer, the surface of the centralizer is in a smooth arc shape, and a plurality of through liquid channels are arranged on the centralizer in the direction of the cylinder body of the centralizer.

Furthermore, in order to increase the contact area between the centering block and the oil pipe and reduce the damage caused by friction, the shape of the centering block is similar to that of a football, and the centering block is arranged outside the cylinder of the centering device along the length direction of the centering block.

Furthermore, in order to ensure that the centering block can smoothly rotate on the centering device cylinder, balls are arranged at two ends of the centering block, the balls are arranged towards the ball groove on one side of the centering device cylinder through an opening in the centering block, and the centering block can slide on the centering device cylinder through the balls.

Further, in order to ensure that the centering block moves on the centering device barrel within a certain range, two limit blocks are arranged on the centering device barrel, the two limit blocks are respectively a limit block A and a limit block B, and the limit block A protrudes out of the outer surface of the centering device barrel and is arranged at the upper part of the centering block; the limiting block B protrudes out of the outer surface of the cylinder body of the centralizer and is arranged at the lower part of the centralizer.

Furthermore, when the centering block on the centering device is worn for a long time and needs to be replaced in time, in order to be convenient for the centering block to be detached from the cylinder of the centering device as soon as possible, a joint opening is formed in the centering block and arranged along the length direction of the centering block, and when the joint opening is opened, the centering block can be detached from the cylinder of the centering device easily.

Furthermore, in order to ensure that the joint is tightly connected when the righting block is used, two sides of the joint are locked along the length direction of the righting block and then are in a bow shape.

Further, the seam mouth sets up to two-layer inside and outside, the two-layer outside the seam mouth is "bow" type and the shape is corresponding, all is equipped with the lockhole that runs through on the protrusion structure of outer seam mouth, the lockhole can block the fixed stopper that sets up on the inlayer, thereby the realization will seam mouth both sides locking.

The beneficial effects of the utility model are that: the surface of the righting block is set to be in a smooth arc surface shape, particularly a football-like shape, so that the contact between the righting block and the oil pipe is the contact between the arc surface and the arc surface, and compared with the contact between the arc surface and a strip-shaped object in the prior art, the damage possibly caused by friction is reduced.

Through setting up the ball at both ends about righting the piece for righting the piece and can reciprocating or rotate in certain extent on the centralizer barrel, ensure to right the piece and can not take place the eccentric wear, when righting the piece and taking place the contact with oil pipe, also can reduce the friction damage that righting the piece probably takes place through reciprocating or pivoted mode.

By arranging the bow-shaped seam ports on the centering blocks along the length direction, when the centering blocks need to be replaced, only the seam ports need to be opened, and the centering blocks are taken down from the cylinder body of the centering device, so that the quick replacement can be realized, and the maintenance efficiency of the centering device is improved; the bow-shaped seam can effectively ensure that the righting block cannot be loosened due to rotation or touch friction when in use.

Drawings

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

FIG. 2 is a schematic cross-sectional view of a centering block of the present invention;

FIG. 3 is an enlarged schematic view of a seam in the present invention;

in the figure:

1. centering block 2, centering device cylinder 1-a and liquid channel

1-b, ball groove 1-c, ball 1-d and joint

1-e, a lock hole 2-a, a limited block A2-B and a limited block B

Detailed Description

The utility model provides an abrasionproof centralizer, includes centralizer 1 and centralizer barrel 2, centralizer 1 sets up in the centralizer barrel 2 outsides, and the surface protrusion of centralizer 1 is in the radial surface of centralizer barrel 2, and centralizer 1 is connected for the rotation type between 1 and the centralizer barrel 2, and the shape of centralizer 1 sets up the shape of the smooth class football in surface, and centralizer 1 sets up the outside at centralizer barrel 2 along its length direction, wherein, on centralizer 1 along centralizer barrel 2 direction, is equipped with six even, the liquid passage 1-a that runs through.

Further, in order to ensure that the centering block 1 can smoothly rotate on the centering device cylinder 2, two ends of the centering block 1 are provided with ball grooves 1-b which are opened towards one side of the centering device cylinder 2, balls 1-c are arranged in the ball grooves 1-b, the rollers 1-c are in contact with the outer wall of the centering device cylinder 2, and the centering block 1 can slide on the centering device cylinder 2 through the balls 1-c.

Further, two limit blocks are arranged on the centralizer cylinder body 2, the two limit blocks are respectively a limit block A2-a and a limit block B2-B, and the limit block A2-a protrudes out of the outer surface of the centralizer cylinder body 2 and is arranged at the upper part of the centralizing block 1; the limiting block B2-B protrudes out of the outer surface of the centralizer cylinder body 2 and is arranged at the lower part of the centralizer block 1; the centralizer block 1 can move up and down or rotate between two limit blocks on the centralizer cylinder body 2 through the balls 1-c.

When a centering block 1 on the centering device is worn for a long time and needs to be replaced in time, in order to facilitate the quick detachment of the centering block 1 from a cylinder body 2 of the centering device, a joint opening 1-d is arranged on the centering block 1, the joint opening 1-d is arranged along the length direction of the centering block 1, wherein the joint opening 1-d is locked and then arranged into a bow shape along the length direction of the centering block 1; the seam 1-d is arranged into an inner layer and an outer layer, the shapes of the seam are corresponding to each other, the protruding structures of the seam on the outer layer are provided with through lock holes 1-e, and the lock holes 1-e can clamp a fixing plug arranged on the inner layer, so that the two sides of the seam 1-d are locked.

The shape of the centering block 1 adopts the shape with smooth surface, so that the contact between the centering block 1 and the oil pipe is changed into the contact between the cambered surface and the cambered surface, the abrasion of the cambered surface of the oil pipe to a certain edge or edges is reduced, and the service life of the centering device is further prolonged; six uniform and penetrating liquid channels 1-a are arranged on the centering block along the direction of the cylinder body 2 of the centering device, and when liquid in the oil pipe is conveyed from bottom to top, the liquid can be conveyed through the liquid channels 1-a, so that the requirement on conveying the liquid in the oil pipe is met.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides an abrasionproof centralizer, includes centralizer barrel and righting piece, its characterized in that: the centralizer is characterized in that the centralizer is arranged on the outer side of the cylinder body of the centralizer, the surface of the centralizer protrudes out of the radial surface of the cylinder body of the centralizer, the centralizer is rotatably connected with the cylinder body of the centralizer, the surface of the centralizer is in a smooth arc shape, and a plurality of through liquid channels are arranged on the centralizer in the direction of the cylinder body of the centralizer.

2. The wear resistant centralizer of claim 1, wherein: the shape of the righting block is similar to that of a football, and the righting block is arranged on the outer side of the cylinder body of the righting device along the length direction of the righting block.

3. A wear centralizer according to claim 1 or claim 2, wherein: the two ends of the centering block are provided with balls, the balls are arranged towards a ball groove on one side of the centering device cylinder through an opening in the centering block, and the centering block can slide or rotate up and down on the centering device cylinder through the balls.

4. The wear centralizer of claim 3, wherein: the centralizer is characterized in that two limiting blocks are arranged on the centralizer barrel body, the two limiting blocks are respectively a limiting block A and a limiting block B, and the limiting block A protrudes out of the outer surface of the centralizer barrel body and is arranged at the upper part of the centralizer block; the limiting block B protrudes out of the outer surface of the cylinder body of the centralizer and is arranged at the lower part of the centralizer.

5. The wear resistant centralizer of claim 4, wherein: the righting block is provided with a joint opening, and the joint opening is arranged along the length direction of the righting block.

6. The wear centralizer of claim 5, wherein: the two sides of the seam are in a bow shape after being locked along the length direction of the righting block.

7. The wear resistant centralizer of claim 6, wherein: the seam crossing sets up to two-layer inside and outside, the two-layer outside the seam crossing is "bow" type and the shape is corresponding, all is equipped with the lockhole that runs through on the protrusion structure of outer layer seam crossing, the lockhole can block the fixed stopper that sets up on the inlayer will seam crossing both sides locking.